FIDELIS INSURANCE HOLDINGS LTD, 20-F filed on 3/5/2026
Annual and Transition Report (foreign private issuer)
v3.25.4
Cover
12 Months Ended
Dec. 31, 2025
shares
Document Information [Line Items]  
Document Type 20-F
Document Registration Statement false
Document Annual Report true
Current Fiscal Year End Date --12-31
Document Period End Date Dec. 31, 2025
Document Transition Report false
Document Shell Company Report false
Entity File Number 001-41731
Entity Registrant Name FIDELIS INSURANCE HOLDINGS LIMITED
Entity Incorporation, State or Country Code D0
Entity Address, Address Line One 90 Pitts Bay Road
Entity Address, City or Town Pembroke
Entity Address, Address Line Two Wellesley House South
Entity Address, Country BM
Entity Address, Postal Zip Code HM08
Title of 12(b) Security Common shares, par value $0.01 per share
Trading Symbol FIHL
Security Exchange Name NYSE
Entity Common Stock, Shares Outstanding 96,651,534
Entity Well-known Seasoned Issuer Yes
Entity Voluntary Filers No
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Filer Category Large Accelerated Filer
Entity Emerging Growth Company false
ICFR Auditor Attestation Flag true
Document Financial Statement Error Correction [Flag] false
Document Accounting Standard U.S. GAAP
Entity Shell Company false
Entity Central Index Key 0001636639
Document Fiscal Year Focus 2025
Document Fiscal Period Focus FY
Amendment Flag false
Business Contact  
Document Information [Line Items]  
Entity Address, Address Line One 90 Pitts Bay Road
Entity Address, City or Town Pembroke
Entity Address, Address Line Two Wellesley House South
Entity Address, Country BM
Entity Address, Postal Zip Code HM08
Contact Personnel Name Allan Decleir
City Area Code 441
Local Phone Number 279 2506
Contact Personnel Email Address allan.decleir@fidelisinsurance.com
v3.25.4
Audit Information
12 Months Ended
Dec. 31, 2025
Audit Information [Abstract]  
Auditor Name KPMG Audit Limited
Auditor Location Hamilton, Bermuda
Auditor Firm ID 1297
v3.25.4
Consolidated Balance Sheets - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Assets    
Other investments, at fair value $ 485.7 $ 201.0
Total investments 3,237.4 3,834.7
Cash and cash equivalents 873.0 743.0
Restricted cash and cash equivalents 374.6 203.6
Accrued investment income 28.3 35.3
Premiums and other receivables (net of allowance for credit losses of $15.8, 2024: $11.8) 3,322.2 2,729.4
Deferred reinsurance premiums 1,441.5 1,422.2
Reinsurance balances recoverable on paid losses (net of allowance for credit losses of $0.3, 2024: $0.2) 438.7 278.4
Reinsurance balances recoverable on reserves for losses and loss adjustment expenses (net of allowance for credit losses of $0.9, 2024: $0.8) 1,195.6 1,255.6
Deferred policy acquisition costs (includes The Fidelis Partnership deferred commissions of $243.4, 2024: $200.2) 1,085.0 877.9
Other assets 272.7 176.9
Total assets 12,443.8 11,765.9
Liabilities    
Reserves for losses and loss adjustment expenses 2,607.1 3,134.3
Unearned premiums 4,384.8 3,651.5
Reinsurance balances payable 1,659.6 1,540.6
Long term debt 843.2 448.9
Preference securities 0.0 58.4
Other liabilities 91.8 98.0
Total liabilities 10,044.2 9,317.5
Commitments and contingencies
Shareholders' equity    
Common shares ($0.01 par, issued and outstanding: 96,651,534, 2024: 111,730,209) 1.0 1.2
Common shares held in treasury, at cost (shares held: nil, 2024: 6,570,003) 0.0 (105.5)
Additional paid-in capital 1,685.6 2,044.6
Accumulated other comprehensive income 37.1 4.5
Retained earnings 675.9 503.6
Total shareholders' equity 2,399.6 2,448.4
Total liabilities and shareholders' equity 12,443.8 11,765.9
Related Party    
Assets    
Amounts due from The Fidelis Partnership (net of allowance for credit losses of $nil, 2024: $nil) 174.8 208.9
Liabilities    
Amounts due to The Fidelis Partnership 457.7 385.8
Fixed maturity securities    
Assets    
Debt securities available-for-sale excluding accrued interest 2,640.4 3,411.6
Short-term investments    
Assets    
Debt securities available-for-sale excluding accrued interest $ 111.3 $ 222.1
v3.25.4
Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Amortized cost $ 2,590.6 $ 3,403.8
Debt securities, available-for-sale, allowance for credit loss, excluding accrued interest 0.6 5.9
Premium receivable, allowance for credit loss 15.8 11.8
Other receivables, allowance for credit loss 0.0 0.0
Reinsurance recoverables on paid losses, allowance 0.3 0.2
Reinsurance recoverables on unpaid losses, allowance $ 0.9 $ 0.8
Common stock, par or stated value per share (in dollars per share) $ 0.01 $ 0.01
Common stock, shares, issued (in shares) 96,651,534 111,730,209
Common stock, shares, outstanding (in shares) 96,651,534 111,730,209
Treasury stock, common, shares (in shares) 0 6,570,003
Related Party    
Deferred policy acquisition cost, deferred commissions $ 243.4 $ 200.2
Fixed maturity securities    
Amortized cost 2,590.6 3,403.8
Debt securities, available-for-sale, allowance for credit loss, excluding accrued interest 0.6 5.9
Short-term investments    
Amortized cost 111.3 221.9
Debt securities, available-for-sale, allowance for credit loss, excluding accrued interest $ 0.0 $ 0.0
v3.25.4
Consolidated Statements of Income and Comprehensive Income - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Revenues      
Gross premiums written $ 4,717.6 $ 4,403.1 $ 3,579.0
Reinsurance premiums ceded (1,709.0) (2,008.5) (1,442.4)
Net premiums written 3,008.6 2,394.6 2,136.6
Change in net unearned premiums (714.9) (136.5) (304.0)
Net premiums earned 2,293.7 2,258.1 1,832.6
Net investment income 184.0 190.5 119.5
Net realized and unrealized investment gains/(losses) 22.8 (28.6) 4.9
Other income 0.0 0.0 0.1
Total revenues before net gain on distribution of The Fidelis Partnership 2,500.5 2,420.0 1,957.1
Net gain on distribution of The Fidelis Partnership 0.0 0.0 1,639.1
Total revenues 2,500.5 2,420.0 3,596.2
Expenses      
Losses and loss adjustment expenses 1,089.8 1,155.8 698.8
Policy acquisition expenses (includes The Fidelis Partnership commissions of $328.8 (2024: $311.1 and 2023: $225.3)) 990.1 999.7 723.8
General and administrative expenses 96.6 94.3 82.7
Corporate and other expenses 1.2 1.6 4.1
Net foreign exchange (gains)/losses (0.5) (1.6) 4.1
Financing costs 47.7 33.8 35.5
Total expenses 2,224.9 2,283.6 1,549.0
Income before income taxes 275.6 136.4 2,047.2
Income tax (expense)/benefit (50.1) (23.1) 85.3
Net income 225.5 113.3 2,132.5
Other comprehensive income      
Unrealized gains on available-for-sale investments 46.4 9.6 81.7
Reclassification of net realized losses/(gains) recognized in net income (4.6) 24.7 0.7
Income tax expense, all of which relates to unrealized gains on available-for-sale investments (9.2) (2.8) (9.7)
Total other comprehensive income 32.6 31.5 72.7
Comprehensive income attributable to common shareholders $ 258.1 $ 144.8 $ 2,205.2
Per share data      
Earnings per common share (in dollars per share) $ 2.12 $ 0.98 $ 18.65
Earnings per diluted common share (in dollars per share) $ 2.11 $ 0.98 $ 18.65
Weighted average basic common shares outstanding (in shares) 106,158,800 115,218,380 114,313,971
Weighted average diluted common shares outstanding (in shares) 106,741,048 115,627,181 114,324,683
v3.25.4
Consolidated Statements of Income and Comprehensive Income (Parenthetical) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Related Party      
Total commissions $ 328.8 $ 311.1 $ 225.3
v3.25.4
Consolidated Statements of Changes in Shareholders’ Equity - USD ($)
$ in Millions
Total
Total shareholders' equity attributable to common shareholders
Common shares
Common shares held in treasury, at cost
Additional paid-in capital
Accumulated other comprehensive income/(loss), net of tax
Unrealized gains/(losses) on available-for-sale securities, net of tax
Currency translation reserve
Retained earnings
Non-controlling interests
Balance - beginning of year at Dec. 31, 2022     $ 1.9 $ 0.0 $ 2,075.2   $ (99.7) $ (1.1) $ 0.5 $ 10.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]                    
Share compensation expense         27.6          
Shares cancelled upon distribution of The Fidelis Partnership     (0.9)              
Shares withheld for employee taxes on restricted share unit vesting         (50.6)          
Issue of common shares, net of issuance costs     0.2   89.3          
Cumulative dividends on warrants         34.1          
Distribution of The Fidelis Partnership net assets to shareholders         (68.4)       (1,696.4) (10.3)
Stock repurchased during period     0.0 0.0            
Treasury Stock, Retired, Par Value Method, Amount       0.0            
Total income tax (expense)/benefit allocated to comprehensive income $ 72.7           72.7 1.1    
Net income 2,132.5               2,132.5  
Dividends, common stock, cash                 0.0  
Balance – end of year at Dec. 31, 2023 2,449.8 $ 2,449.8 1.2 0.0 2,039.0 $ (27.0) (27.0) 0.0 436.6 0.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]                    
Share compensation expense         7.8          
Shares cancelled upon distribution of The Fidelis Partnership     0.0              
Shares withheld for employee taxes on restricted share unit vesting         (2.2)          
Issue of common shares, net of issuance costs     0.0   0.0          
Cumulative dividends on warrants         0.0          
Distribution of The Fidelis Partnership net assets to shareholders         0.0       0.0 0.0
Stock repurchased during period     0.0 (105.5)            
Treasury Stock, Retired, Par Value Method, Amount       0.0            
Total income tax (expense)/benefit allocated to comprehensive income 31.5           31.5 0.0    
Net income 113.3               113.3  
Dividends, common stock, cash                 (46.3)  
Balance – end of year at Dec. 31, 2024 2,448.4 2,448.4 1.2 (105.5) 2,044.6 4.5 4.5 0.0 503.6 0.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]                    
Share compensation expense         7.9          
Shares cancelled upon distribution of The Fidelis Partnership     0.0   (366.7)          
Shares withheld for employee taxes on restricted share unit vesting         (0.2)          
Issue of common shares, net of issuance costs     0.0   0.0          
Cumulative dividends on warrants         0.0          
Distribution of The Fidelis Partnership net assets to shareholders         0.0       0.0 0.0
Stock repurchased during period     (0.2) (22.1)            
Treasury Stock, Retired, Par Value Method, Amount       127.6            
Total income tax (expense)/benefit allocated to comprehensive income 32.6           32.6 0.0    
Net income 225.5               225.5  
Dividends, common stock, cash                 (53.2)  
Balance – end of year at Dec. 31, 2025 $ 2,399.6 $ 2,399.6 $ 1.0 $ 0.0 $ 1,685.6 $ 37.1 $ 37.1 $ 0.0 $ 675.9 $ 0.0
v3.25.4
Consolidated Statements of Cash Flows - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Operating activities      
Net income before equity in net income of subsidiaries $ 225.5 $ 113.3 $ 2,132.5
Adjustments to reconcile net income/(loss) after tax to net cash provided by/(used in) operating activities:      
Revaluation of The Fidelis Partnership 0.0 0.0 (1,707.1)
Share compensation expense 7.9 7.8 27.6
Accretion, amortization and depreciation (19.2) (14.0) 0.3
Net realized and unrealized (gain)/loss on investments (22.8) 28.6 (8.6)
Deferred tax expense/(benefit) 8.9 9.8 (86.5)
Net changes in assets and liabilities:      
Accrued investment income 7.0 (8.1) (16.3)
Premiums and other receivables (495.6) (572.7) (321.3)
Amounts due from The Fidelis Partnership 38.6 (37.6) (176.2)
Deferred reinsurance premiums (19.3) (360.8) (237.7)
Reinsurance balances recoverable on paid losses (146.6) (103.1) (22.5)
Reinsurance balances recoverable on reserves for losses and loss adjustment expenses 85.7 (168.5) (125.5)
Deferred policy acquisition costs (207.1) (91.3) (270.6)
Other assets (103.6) (10.9) 34.6
Reserves for losses and loss adjustment expenses (582.5) 728.0 383.9
Unearned premiums 733.3 502.0 530.9
Reinsurance balances payable 45.5 507.8 7.1
Amounts due to The Fidelis Partnership 59.7 56.8 334.0
Other liabilities (23.7) 31.1 16.6
Net cash provided by/(used in) operating activities (408.3) 618.2 495.2
Investing activities      
Purchase of available-for-sale securities (1,754.1) (2,322.7) (2,241.6)
Proceeds from maturities of available-for-sale securities 697.3 796.5 1,327.1
Proceeds from sales of available-for-sale securities 2,012.7 1,207.7 10.8
Purchase of other investments (272.0) (200.0) 0.0
Proceeds from sale of other investments 0.0 47.3 75.2
Purchase of fixed assets (1.2) (4.6) (6.4)
Net cash provided by/(used in) investing activities 682.7 (475.8) (834.9)
Financing activities      
Dividends on common shares (52.3) (46.2) 0.0
Repurchase of common shares (261.4) (105.5) 0.0
Tax paid on withholding shares (0.2) (2.2) (50.6)
Proceeds from issuance of debt, net of issuance costs 393.3 0.0 0.0
Repurchase of preferred securities (59.6) 0.0 0.0
Proceeds from issuance of common shares, net of issuance costs 0.0 0.0 89.4
Non-controlling interest share transactions 0.0 0.0 (6.1)
Net cash used in disposal of subsidiary 0.0 0.0 (105.5)
Cumulative dividends on warrants 0.0 0.0 (34.1)
Net cash provided by/(used in) financing activities 19.8 (153.9) (106.9)
Effect of exchange rate changes on foreign currency cash 6.8 (6.0) 2.8
Net increase/(decrease) in cash, restricted cash, and cash equivalents 301.0 (17.5) (443.8)
Cash, restricted cash, and cash equivalents, beginning of year 946.6 964.1 1,407.9
Cash, restricted cash, and cash equivalents, end of year 1,247.6 946.6 964.1
Supplemental disclosure of cash flow information:      
Cash paid during the year for interest $ 42.6 $ 29.6 $ 29.7
v3.25.4
Nature of Operations
12 Months Ended
Dec. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Nature of Operations
1.          Nature of Operations
Fidelis Insurance Holdings Limited (“Fidelis” or “FIHL”, and together with its subsidiaries, the “Group”) is a holding company which was incorporated under the laws of Bermuda on August 22, 2014. The Group is a global specialty underwriter of insurance and reinsurance. Fidelis’ principal operating subsidiaries are:
Fidelis Insurance Bermuda Limited (“FIBL”) is a Class 4 Bermuda domiciled company which writes most of the Group’s reinsurance business, as well as writing insurance lines. FIBL is regulated by the Bermuda Monetary Authority.
Fidelis Underwriting Limited (“FUL”) is a U.K. domiciled company which principally writes insurance, as well as reinsurance. FUL is regulated by the Prudential Regulation Authority ("PRA") and the Financial Conduct Authority (“FCA”).
Fidelis Insurance Ireland DAC (“FIID”) is a Republic of Ireland domiciled company that writes insurance and reinsurance within the European Economic Area. FIID is regulated by the Central Bank of Ireland (“CBI”).
FIHL (UK) Services Limited (“FSL”) is a U.K. service company that also has a branch in Ireland.
On January 3, 2023, the Group distributed its investment in Fidelis Marketing Limited (“FML”) and Pine Walk Capital Limited (“Pine Walk”) to shareholders to form a new managing general underwriter business (“The Fidelis Partnership” or “TFP”) and The Fidelis Partnership was acquired by a consortium of investors (the “Separation Transactions”).
Through various long-term contractual agreements, effective from January 1, 2023 The Fidelis Partnership manages origination, underwriting, underwriting administration and claims handling under delegated authority agreements with the Group. Other services provided by The Fidelis Partnership to the Group include sourcing and administering outwards reinsurance, support with business planning, capital management, insurance contract accounting and information technology.
Further information can be found at Note 19 (Separation Transactions) and Note 13 (Related Party Transactions).
On July 3, 2023, Fidelis completed an initial public offering (“IPO”) of common shares on the New York Stock Exchange under the symbol “FIHL”.
On May 22, 2024, the Group established a Lloyd’s corporate member, Nameco (No 1404) Limited (the “Fidelis IG Corporate Member”), a wholly owned subsidiary of FIBL, to facilitate its participation in Syndicate 3123’s underwriting activity. The participation rate is 7.4% in the 2025 year of account (9.9% for the 2024 year of account, commencing July 1, 2024).
v3.25.4
Significant Accounting Policies
12 Months Ended
Dec. 31, 2025
Accounting Policies [Abstract]  
Significant Accounting Policies 2.          Significant Accounting Policies
Basis of presentation
The accompanying consolidated financial statements include the results of FIHL and its subsidiaries and have been prepared in conformity with generally accepted accounting principles in the United States (“U.S. GAAP”) and include the results of Fidelis Insurance Holdings Limited and its subsidiaries. All intercompany balances and transactions have been eliminated on consolidation.
Reporting currency
The financial information is reported in United States dollars (“U.S. dollars” or “$”), expressed in millions, except for share and per share amounts.
Use of estimates, risks and uncertainties
The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
The most significant estimates reflected in the financial statements include:
Written and earned premiums;
Reserves for losses and loss adjustment expenses;
Reinsurance balance recoverable on reserves for losses and loss adjustment expenses;
Fair value measurements of fixed maturity investments, available-for-sale, and other investments; and
Income tax expense.
Cash and cash equivalents
Cash and cash equivalents consist of cash held in banks, money market funds and other short-term, highly liquid investments with original maturity dates of 90 days or less, provided they are not part of the investment portfolio. Cash equivalents are recorded at amortized cost, which approximates fair value due to the short-term, liquid nature of these securities.
Restricted cash and cash equivalents
Restricted cash and cash equivalents consist of cash held in segregated or trust accounts, which is unavailable for immediate use by the Group, primarily to provide collateral for letters of credit, reinsurance agreements, and to support the current value of any amounts that may be due to counterparties based on the value of underlying financial instruments. Restricted cash equivalents are recorded at amortized cost, which approximates fair value due to the short-term, liquid nature of these securities.
Investments
The Group currently classifies its fixed maturity securities and short-term investments as “available-for-sale” (‘AFS’) and, accordingly, they are carried at fair value with the changes in fair value recorded as an unrealized gain or loss component of accumulated other comprehensive income in shareholders’ equity.
Investments with a maturity from three months up to one year from date of purchase are classified as short-term investments.
For all fixed maturity securities, realized gains or losses are determined on the basis of the first-in, first-out method. Realized gains and losses on fixed maturity securities include allowances for expected credit losses. This allowance represents the difference between the security’s amortized cost and the amount expected to be collected over the security’s lifetime.
Unrealized gains and losses represent the difference between the cost, or the cost as adjusted by amortization of any difference between its cost and its redemption value (“amortized cost”), of the security and its fair value at the reporting date and are included within other comprehensive income for securities classified as available-for-sale.
The Group’s other investments consist of a portfolio of fixed income funds, hedge funds and private equity funds that is valued at fair value using net asset value per share as a practical expedient. These funds are not reflected within the fair value hierarchy disclosed in Note 5 (Fair Value Measurements). Prior to December 31, 2024, the Group also held an investment in the Wellington Opportunistic Fixed-Income Undertakings for the Collective Investment in Transferable Securities Fund that was carried at fair value. Realized and unrealized gains on other investments are included in net realized and unrealized investment gains and losses on the Consolidated Statements of Income.
Investment transactions are recorded on a trade date basis. Investments pending settlement include receivables and payables from unsettled trades with brokers. Receivables and payables from unsettled trades are carried at fair value based on quoted prices in active markets for identical assets or derived based on inputs that are observable. Receivables and payables from unsettled trades are classified within other assets and other liabilities, respectively, on the Consolidated Balance Sheets.
Net investment income
Net investment income includes amounts received and accrued in respect of periodic interest (“coupons”) payable to the Group by the issuer of fixed income securities and interest credited on cash and cash equivalents. It also includes amortization of premium and accretion of discount in respect of fixed income securities. Investment management, custody, and investment administration fees are charged against net investment income reported in the Consolidated Statements of Income.
The Group reports accrued investment income separately from investment balances and has elected not to measure an allowance for credit losses for accrued investment income. Any uncollectible accrued interest income is written off in the period it is deemed uncollectible.
Derivative assets and liabilities
All derivatives are recognized in the Consolidated Balance Sheets at fair value on a gross basis and not offset against any collateral pledged or received. Unrealized gains and losses resulting from changes in fair value are included in net realized and unrealized investment gains and losses or net foreign exchange gains and losses in the Consolidated Statements of Income. The Group’s derivative financial instrument assets are included in other assets and derivative financial instrument liabilities are included in other liabilities in the Consolidated Balance Sheets. None of the Group’s derivatives are designated as accounting hedges for financial reporting purposes. Pursuant to the International Swaps and Derivatives Association (“ISDA”) master agreements and other derivative agreements, the Group and its counterparties typically have the ability to settle on a net basis. In addition, in the event a party to one of the ISDA master agreements or other derivative agreements defaults, or a transaction is otherwise subject to termination, the non-
defaulting party generally has the right to set off against payments owed to the defaulting party or collateral held by the defaulting party.
The Group may enter into derivative transactions to manage foreign currency exchange risk, interest rate or duration risk, or other exposure risks. Derivative transactions typically include futures, options, swaps and forwards. Derivative assets represent financial contracts whereby, based upon the contract’s current fair value, the Group will be entitled to receive payments upon settlement. Derivative liabilities represent financial contracts whereby, based upon the contract’s current fair value, the Group will be obligated to make payments upon settlement.
The Group manages foreign currency exposure by substantively balancing assets with liabilities for certain major non-U.S. dollar currencies, or by entering into currency forward contracts. However, there is no guarantee that this will effectively mitigate exposure to foreign exchange gains and losses.
Where a contract includes an embedded derivative, the embedded derivative is recognized separately only if the contract is not recognized at fair value, or the economic characteristics and risks of the embedded derivative are not clearly and closely related to those of the host contract.
Premiums and acquisition costs
Premiums written are recorded on inception of the policy. Premiums written include estimates based on information received from insureds, brokers and cedants, and any subsequent differences arising on such estimates are recorded as premiums written in the period they are determined. Premiums written are earned on a basis consistent with risks covered over the period the coverage is provided. The portion of the premiums written applicable to the unexpired terms of the underlying contracts and policies is recorded as unearned premium.
Reinstatement premiums are recognized as written and earned after the occurrence of a loss and are recorded in accordance with the contract terms based upon management’s estimate of losses and loss adjustment expenses.
Policy acquisition expenses are directly related to the acquisition of insurance premiums and are deferred and amortized over the related policy period in line with earned premium. The Group only defers acquisition costs incurred that are directly related to the successful acquisition of new or renewal insurance contracts, including commissions to agents, including The Fidelis Partnership, brokers and premium taxes. All other acquisition related expenses including indirect costs are expensed as incurred. To the extent that future policy revenues on existing policies are not adequate to cover related costs and expenses, deferred policy acquisition costs are charged to earnings.
The Group evaluates premium deficiency and the recoverability of deferred acquisition costs by determining if the sum of future earned premiums and anticipated investment return is greater than expected future losses and loss adjustment expenses and policy acquisition expenses.
Premiums receivable
Premiums receivable includes amounts receivable from insureds, net of brokerage costs, which represent premiums that are both currently due and amounts not yet due on insurance and reinsurance policies. Premiums for insurance and reinsurance policies generally become due over the period of coverage based on the policy terms. Contract periods can be several years in length with premiums received in annual or quarterly installments.
The Group monitors the credit risk associated with premiums receivable, taking into consideration the fact that in certain instances credit risk may be reduced by the Group’s right to offset loss obligations against premiums receivable, and contracts are generally cancellable for non-payment. The Group establishes an allowance for expected credit losses based upon an aged analysis of amounts due, historical write-offs, current economic conditions and expectations of future economic conditions. Further details are set out at Note 10 (Reinsurance and Retrocessional Reinsurance). Changes in the estimate of (re)insurance premiums written will also result in an adjustment to premiums receivable in the period they are determined.
Reinsurance and retrocession
The Group seeks to reduce the risk of net losses on business written by reinsuring certain risks and exposures with other reinsurers. Ceded reinsurance contracts do not relieve the Group of its primary obligation to insureds. Ceded premiums are recognized when the coverage period incepts and are expensed over the contract period in proportion to the coverage period or, when the coverage period does not align to the risk exposure, in proportion to the underlying risk exposure. Premiums relating to the unexpired portion of reinsurance ceded are recorded as deferred reinsurance premiums.
Commissions on ceded business are deferred and amortized over the period in which the related ceded premium is recognized. The deferred balance is recorded within deferred policy acquisition costs on the Consolidated Balance Sheets and the amortization is recognized within policy acquisition expenses in the Consolidated Statements of Income.
Losses and loss adjustment expenses
The liability for losses and loss adjustment expenses includes reserves for unpaid reported losses and for losses incurred but not reported (“IBNR”). These estimates are reported net of amounts estimated to be recoverable from salvage, subrogation and other recoveries. The reserve for losses and loss adjustment expenses is established by management based on reports from insureds, brokers, and ceding companies and the application of generally accepted actuarial techniques, including the output from catastrophe and probabilistic models, and represents the estimated ultimate cost of events or conditions that have been reported to or specifically identified by the Group as incurred.
The Group estimates ultimate losses using various actuarial methods as well as the Group’s own loss experience, historical insurance industry loss experience, estimates of pricing adequacy trends and management’s professional judgement. The estimated cost of claims includes expenses to be incurred in settling claims.
The estimation of losses and loss adjustment expense reserves is based on various complex and subjective judgments, as described in Note 9 (Reserves for Losses and Loss Adjustment Expenses). Ultimate losses and loss adjustment expenses may differ materially from the amount recorded in the financial statements. These estimates are reviewed regularly and as experience develops and new information becomes known, the reserves are adjusted as necessary. Such adjustments, if any, are recorded in losses and loss adjustment expenses in the periods in which they are determined.
Reinsurance balances recoverable
Amounts recoverable from reinsurers are estimated based on the terms and conditions of the reinsurance contracts in a manner consistent with the underlying liability reinsured. The Group evaluates the financial condition of its reinsurers and monitors concentration of credit risk to minimize its exposure to significant losses from individual reinsurers. The ceding of insurance does not legally discharge the Group from its primary liability for the full amount of the policies, and the Group will be required to pay the loss and bear collection risk if the reinsurer fails to meet its obligations under the reinsurance or retrocessional agreement. To further reduce credit exposure on reinsurance recoverables, the Group has received collateral, including letters of credit and trust accounts, from certain reinsurers. Collateral related to these reinsurance agreements is available, without restriction, when the Group pays losses covered by the reinsurance agreements.
An allowance is established for credit losses expected to be incurred over the life of the reinsurance recoverable, which is recorded net of this allowance. To determine the allowance for expected credit losses, the probability of default is calculated based on the reinsurer credit ratings and default factors developed by a major rating agency. The allowance is charged to net income in the period the recoverable is recorded and revised in subsequent periods to reflect changes in the Group’s estimate of expected credit losses. Further details are set out at Note 10 (Reinsurance and Retrocessional Reinsurance).
Long term debt
Debt is initially measured at fair value less issuance costs incurred and subsequently held at amortized cost. Interest expense is recognized over the term of the notes using the effective interest method.
Leases
The Group assesses whether a contract contains a lease at the inception of the contract, determining at that point whether any leases identified are operating leases or finance leases. The Group does not currently have any finance leases.
For operating leases with a lease term in excess of 12 months, a lease liability and corresponding operating right-of-use asset is recognized. The lease liability takes into account any renewal options that are deemed to be reasonably certain and is discounted using the Group’s incremental borrowing rate, where the rate implicit in the lease is not available.
The unwinding of the discount is recognized in general and administrative expenses. The operating right-of-use asset is amortized straight line over the term of the lease and recognized in general and administrative expenses in the Consolidated Statements of Income.
Corporate and other expenses
Corporate and other expenses include reorganization expenses and other one-off expenses. Corporate and other expenses have been separated from general and administrative costs to separately show these costs from the administrative costs associated with running the day-to-day activities of the Group.
Income taxes
Income taxes have been provided for those operations that are subject to income taxes based on tax laws and rates enacted in those jurisdictions. Current and deferred taxes are charged or credited to income tax expense.
Deferred tax assets and liabilities result from temporary differences between the amounts recorded in the consolidated financial statements and the tax basis of the Group’s assets and liabilities. The effect on deferred tax assets and liabilities of a change in tax law or rates is recognized in income tax expense in the Consolidated Statements of Income in the period that includes the enactment date.
A valuation allowance is provided to reduce deferred tax assets to the amount management deem more likely than not to be realized.
The Group recognizes the benefit from a tax position taken or expected to be taken in income tax returns only if it is more likely than not that the tax position will be sustained upon examination by taxing authorities, based on the technical merits of the position. Tax positions that meet the more likely than not threshold are measured as the largest amount of tax benefit that is greater than 50 percent likely of being realized upon settlement. The Group recognizes interest and penalties related to income taxes in income tax expense.
Share compensation
The Group issues share-based compensation awards to employees with: (i) a service condition (ii) a service and performance condition, and (iii) a market condition. The fair value of all awards is measured at the grant date, and the awards expensed ratably over the service period. Forfeitures are recognized as they occur.
Share-based compensation awards that contain only service conditions, and awards that contain both service and performance conditions, are all valued using the market value of the FIHL common shares. For awards that contain both a service and performance condition, the Group recognizes compensation expense only for the portion of the award that is considered probable of vesting. The probability of share-based awards vesting is evaluated at each reporting period.
For awards with a market condition, they are valued using Monte Carlo simulation with inputs that include the grant date share price, estimated volatility, and risk-free interest rates.
Prior to January 3, 2023 the Group issued warrants to purchase common shares. The warrants contained a combination of service and performance conditions and were valued at the grant date using the Black-Scholes option-pricing model. Share compensation expense for warrants considered probable of vesting was expensed over the vesting period on a graded vesting basis.
Foreign exchange
The functional currency of the Group and its subsidiaries is U.S. dollar. Transactions in foreign currencies are translated in U.S. dollars at the exchange rate in effect on the transaction date. Monetary assets and liabilities in foreign currencies are re-measured at the exchange rates in effect at the reporting date. Foreign exchange gains and losses are included in the Consolidated Statements of Income. Non-monetary assets and liabilities are remeasured to the functional currency at historic exchange rates.
Prior to the Separation Transactions, certain subsidiaries had a non-U.S. dollar functional currency. In translating the financial results of those entities whose functional currency was other than the U.S. Dollar reporting currency, assets and liabilities were converted into U.S. Dollars using the rates of exchange in effect at the reporting date, and revenues and expenses were converted using the average foreign exchange rates for the period. The effect of translation adjustments was reported in the Consolidated Balance Sheets and Consolidated Statements of Changes in Shareholders’ Equity as a foreign currency translation adjustment, a separate component of Accumulated Other Comprehensive Income.
Comprehensive income
Comprehensive income represents all changes in equity that result from recognized transactions and other economic events during the period. Other comprehensive income refers to revenues, expenses, gains and losses that under U.S. GAAP are included in comprehensive income but excluded from net income, such as unrealized gains or losses on available-for-sale investments and foreign currency translation adjustments.
Reclassification
Certain amounts in the prior period financial statements have been reclassified to conform to the presentation of the current period financial statements. These reclassifications had no impact on the previously reported net income or shareholders’ equity.
Recent accounting pronouncements
Accounting standards recently adopted
The Group adopted ASU 2023-09 “Improvements to Income Tax Disclosures” in the year ended December 31, 2025. This guidance improves the transparency of income tax disclosures by requiring consistent categories and disaggregation of information in the effective income tax rate reconciliation as well as information on income taxes paid. The Group has applied ASU 2023-09 retrospectively by providing the required disclosures for all periods presented. The ASU impacted our disclosures in Note 18 (Income Taxes), but had no impact on our results of operations, cash flows, and financial condition.
Accounting standards not yet adopted
In November 2024, the FASB issued ASU 2024-03 "Disaggregation of Income Statement Expenses," which requires entities to disaggregate certain income statement expenses into more detailed components to enhance transparency and usefulness of financial information. This ASU mandates the separate disclosure of specific expense categories, such as employee compensation, depreciation, and amortization in the footnotes. The effective date for ASU 2024-03 is for fiscal years beginning after December 15, 2026, with early adoption permitted. The Group is currently evaluating the impact of adoption on the disclosures within its consolidated financial statements.
v3.25.4
Segments
12 Months Ended
Dec. 31, 2025
Segment Reporting [Abstract]  
Segments
3.           Segments
The chief operating decision maker (“CODM”) has been determined to be the Group Chief Executive Officer.
Our two reportable segments are defined as follows:
The Insurance segment comprises a specialized portfolio of risks that includes Property, Marine, Asset Backed Finance & Portfolio Credit, Energy, Cyber, Aviation & Aerospace, Political Risk, Violence & Terror, and Other Insurance risks.
The Reinsurance segment is primarily a property catastrophe book, with a smaller proportion of Retro & Whole Account business.
The Group also has an “Other” category that includes general and administrative expenses and The Fidelis Partnership commissions.
The CODM and management measure segment performance based on segment underwriting income. Segment underwriting income is used in (i) the annual budgeting and forecasting process, (ii) quarterly comparisons of budget to actual, (iii) quarterly comparisons of actual to prior year, and (iv) comparison of performance across segments.
The accounting policies of the segments are the same as those described in Note 2 (Significant Accounting Policies). Assets are not allocated to segments, nor are general and administrative expenses allocated between segments as employees, including underwriters, may work across different segments. The Fidelis Partnership commissions (see Note 13 (Related Party Transactions)) are not allocated to segments as they are not included in the measure of segment profit reviewed by the CODM, nor is a segment analysis of such expenses provided in other information reviewed by the CODM.
The following tables summarize the Group's segment disclosures:
2025
InsuranceReinsuranceOtherTotal
Gross premiums written$3,756.3 $961.3 $— $4,717.6 
Net premiums written2,531.9 476.7 — 3,008.6 
Net premiums earned1,899.4 394.3 — 2,293.7 
Losses and loss adjustment expenses(996.5)(93.3)— (1,089.8)
Policy acquisition expenses(557.6)(103.7)(328.8)(990.1)
General and administrative expenses— — (96.6)(96.6)
Underwriting income345.3 197.3 117.2 
Net investment income184.0 
Net realized and unrealized investment gains22.8 
Corporate and other expenses(1.2)
Net foreign exchange gains0.5 
Financing costs(47.7)
Income before income taxes275.6 
Income tax expense(50.1)
Net income$225.5 
Losses and loss adjustment expenses incurred - current year(918.9)(173.9)$(1,092.8)
Losses and loss adjustment expenses incurred - prior accident years(77.6)80.6 3.0 
Losses and loss adjustment expenses incurred - total$(996.5)$(93.3)$(1,089.8)
Underwriting Ratios(1)
Loss ratio - current year48.4%44.1%47.6%
Loss ratio - prior accident years4.1%(20.4%)(0.1%)
Loss ratio - total52.5%23.7%47.5%
Policy acquisition expense ratio29.4%26.3%28.8%
Underwriting ratio81.9%50.0%76.3%
The Fidelis Partnership commissions ratio14.3%
General and administrative expense ratio4.2%
Combined ratio94.8%
__________________
(1)Underwriting ratios are calculated by dividing the related expense by net premiums earned.
2024
InsuranceReinsuranceOtherTotal
Gross premiums written$3,538.5 $864.6 $— $4,403.1 
Net premiums written2,050.4 344.2 — 2,394.6 
Net premiums earned1,902.4 355.7 — 2,258.1 
Losses and loss adjustment expenses(1,101.5)(54.3)— (1,155.8)
Policy acquisition expenses(604.6)(84.0)(311.1)(999.7)
General and administrative expenses— — (94.3)(94.3)
Underwriting income196.3 217.4 8.3 
Net investment income190.5 
Net realized and unrealized investment losses(28.6)
Corporate and other expenses(1.6)
Net foreign exchange gains1.6 
Financing costs(33.8)
Income before income taxes136.4 
Income tax expense(23.1)
Net income$113.3 
Losses and loss adjustment expenses incurred - current year(916.9)(114.3)$(1,031.2)
Losses and loss adjustment expenses incurred - prior accident years(184.6)60.0 (124.6)
Losses and loss adjustment expenses incurred - total$(1,101.5)$(54.3)$(1,155.8)
Underwriting Ratios(1)
Loss ratio - current year48.2%32.2%45.7%
Loss ratio - prior accident years9.7%(16.9%)5.5%
Loss ratio - total57.9%15.3%51.2%
Policy acquisition expense ratio31.8%23.6%30.5%
Underwriting ratio89.7%38.9%81.7%
The Fidelis Partnership commissions ratio13.8%
General and administrative expense ratio4.2%
Combined ratio99.7%
_________________
(1)Underwriting ratios are calculated by dividing the related expense by net premiums earned.
2023
InsuranceReinsuranceOtherTotal
Gross premiums written$2,960.4 $618.6 $— $3,579.0 
Net premiums written1,880.5 256.1 — 2,136.6 
Net premiums earned1,577.0 255.6 — 1,832.6 
Losses and loss adjustment expenses(675.1)(23.7)— (698.8)
Policy acquisition expenses(429.1)(69.4)(225.3)(723.8)
General and administrative expenses— — (82.7)(82.7)
Underwriting income472.8 162.5 327.3 
Net investment income119.5 
Net realized and unrealized investment gains4.9 
Other income0.1 
Net gain on distribution of The Fidelis Partnership1,639.1 
Corporate and other expenses(4.1)
Net foreign exchange losses(4.1)
Financing costs(35.5)
Income before income taxes2,047.2 
Income tax benefit85.3 
Net income$2,132.5 
Losses and loss adjustment expenses incurred - current year(669.5)(92.2)$(761.7)
Losses and loss adjustment expenses incurred - prior accident years(5.6)68.5 62.9 
Losses and loss adjustment expenses incurred - total$(675.1)$(23.7)$(698.8)
Underwriting Ratios(1)
Loss ratio - current year42.4%36.1%41.5%
Loss ratio - prior accident years0.4%(26.8%)(3.4%)
Loss ratio - total42.8%9.3%38.1%
Policy acquisition expense ratio27.2%27.2%27.2%
Underwriting ratio70.0%36.5%65.3%
The Fidelis Partnership commissions ratio12.3%
General and administrative expense ratio4.5%
Combined ratio82.1%
__________________
(1)Underwriting ratios are calculated by dividing the related expense by net premiums earned.
The following table summarizes gross premiums written by line of business within each underwriting segment.
202520242023
Insurance
Property$1,314.9 $1,279.6 $988.1 
Marine722.6 785.7 673.4 
Asset Backed Finance & Portfolio Credit531.0 399.2 293.3 
Energy208.8 192.5 172.1 
Cyber195.6 82.9 69.9 
Aviation & Aerospace172.2 339.5 371.8 
Political Risk, Violence & Terror156.6 204.2 221.7 
Other Insurance454.6 254.9 170.1 
Total Insurance3,756.3 3,538.5 2,960.4 
Reinsurance
Property Reinsurance931.6 832.9 596.8 
Retro & Whole Account29.7 31.7 21.8 
Total Reinsurance$961.3 $864.6 $618.6 
c) The following table presents gross premiums written by the geographical location of the Group’s subsidiaries:
202520242023
United Kingdom$2,423.7 $2,347.2 $1,977.0 
Bermuda1,854.8 1,448.4 1,047.5 
Republic of Ireland439.1 607.5 554.5 
Total$4,717.6 $4,403.1 $3,579.0 
The information presented above is after allocation of consolidation adjustments. Amounts relating to intergroup reinsurance are not included in the above table.
v3.25.4
Investments
12 Months Ended
Dec. 31, 2025
Investments, Debt and Equity Securities [Abstract]  
Investments
4.           Investments
At December 31, 2025, the Group’s investments are substantially all managed by external investment managers through individual investment management agreements. The Group monitors activity and performance of the external managers on an ongoing basis.
a.Fixed maturity securities
The following table summarizes the fair value of fixed maturity investments:
December 31, 2025
Amortized CostUnrealized
gains
Unrealized
losses
Fair
value
U.S. Treasuries$477.8 $6.6 $(0.2)$484.2 
Agencies6.9 — — 6.9 
Non-U.S. government46.6 0.6 — 47.2 
Corporate bonds1,616.8 35.7 (0.3)1,652.2 
Residential mortgage-backed244.3 5.6 — 249.9 
Commercial mortgage-backed1.0 — — 1.0 
Other asset-backed securities197.2 1.9 (0.1)199.0 
Total fixed maturity securities$2,590.6 $50.4 $(0.6)$2,640.4 
December 31, 2024
Amortized CostUnrealized
gains
Unrealized
losses
Fair
value
U.S. Treasuries$747.6 $2.1 $(3.1)$746.6 
Agencies11.5 — — 11.5 
Non-U.S. government46.6 0.1 (0.3)46.4 
Corporate bonds1,906.3 10.9 (4.0)1,913.2 
Residential mortgage-backed279.5 0.8 (1.2)279.1 
Commercial mortgage-backed— 0.4 — 0.4 
Other asset-backed securities412.3 2.3 (0.2)414.4 
Total fixed maturity securities$3,403.8 $16.6 $(8.8)$3,411.6 
Review of the fixed maturity securities is performed on a regular basis to consider concentration, credit quality and compliance with established guidelines. For individual fixed maturity securities, nationally recognized statistical rating organizations are used and the middle of three ratings or the lower of two is taken. The composition of the fair values of fixed maturity securities by credit rating is as follows:
December 31, 2025December 31, 2024
Fair Value%Fair Value%
AAA$216.1 9%$399.4 12%
AA891.2 34%1,245.6 37%
A1,118.8 42%1,270.9 37%
BBB382.8 14%453.1 13%
Below BBB31.5 1%42.6 1%
Total fixed maturity securities$2,640.4 100%$3,411.6 100%
The contractual maturities for fixed maturity securities are listed in the following table:
December 31, 2025December 31, 2024
Amortized CostFair ValueAmortized CostFair Value
Due in one year or less$233.0 $234.2 $147.9 $147.6 
Due after one year through five years1,503.5 1,532.4 2,141.2 2,149.8 
Due after five years through ten years520.3 534.3 767.7 766.7 
Due after ten years333.8 339.5 347.0 347.5 
Total fixed maturity securities$2,590.6 $2,640.4 $3,403.8 $3,411.6 
Expected maturities may differ from contractual maturities as borrowers may have the right to call or repay obligations with or without call or prepayment penalties. Additionally, lenders may have the right to put the securities back to the borrower.
b.Short-term investments
The Group’s short-term investments consist of U.S. Treasuries, corporate bonds and other asset-backed securities with maturities of 90 days or greater but less than one year at the time of purchase:
December 31, 2025
Amortized CostUnrealized
gains
Unrealized
losses
Fair
value
U.S. Treasuries$109.9 $— $— $109.9 
Corporate bonds1.0 — — 1.0 
Other asset-backed securities0.4 — — 0.4 
Total short-term investments$111.3 $ $ $111.3 
December 31, 2024
Amortized CostUnrealized
gains
Unrealized
losses
Fair
value
U.S. Treasuries$220.5 $0.2 $— $220.7 
Corporate bonds1.1 — — 1.1 
Other asset-backed securities0.3 — — 0.3 
Total short-term investments$221.9 $0.2 $ $222.1 
The composition of the fair values of short-term investments by credit rating is as follows:
December 31, 2025December 31, 2024
Fair Value%Fair Value%
AAA$0.4 %$0.3 %
AA109.9 99%220.7 100%
A0.7 1%— %
BBB0.2 %0.2 %
Below BBB0.1 %0.9 %
Total short-term investments$111.3 100%$222.1 100%
c.Available-for-sale - net loss position
The following table summarizes, by type of security, the aggregate fair value and gross unrealized loss by length of time the security has been in an unrealized loss position for the Group’s available-for-sale portfolio:
December 31, 2025
0 - 12 months> 12 months
Fair
value
Gross unrealized lossesGross unrealized lossesNumber of securities
U.S. Treasuries$50.1 $(0.1)$(0.1)49 
Non-U.S. government5.3 — — 
Corporate bonds53.3 (0.3)— 132 
Residential mortgage-backed2.2 — — 
Other asset-backed securities25.3 (0.1)— 30 
Total$136.2 $(0.5)$(0.1)215 
December 31, 2024
0 - 12 months> 12 months
Fair
value
Gross unrealized lossesGross unrealized lossesNumber of securities
U.S. Treasuries$307.6 $(2.8)$(0.3)48 
Agencies4.0 — — 
Non-U.S. government23.7 (0.1)(0.2)11 
Corporate bonds543.6 (3.4)(0.6)310 
Residential mortgage-backed91.9 (1.1)(0.1)35 
Other asset-backed securities64.7 (0.2)— 25 
Total$1,035.5 $(7.6)$(1.2)431 
At December 31, 2025 on a security level basis, 215 securities out of a total of approximately 1,624 securities were in an unrealized loss position and the largest unrealized loss from a single security in the Group’s fixed maturity portfolio was $0.1 million. At December 31, 2024, on a security level basis, 431 securities out of a total of approximately 1,713 securities were in an unrealized loss position and the largest unrealized loss from a single security in the Group’s fixed maturity portfolio was $0.5 million.
d.Allowance for expected credit losses - available-for-sale
The following table provides a roll forward of the allowance for expected credit losses of the Group’s securities classified as available-for-sale:
202520242023
Balance at beginning of year$5.9 $1.3 $1.1 
Expected credit losses on securities where credit losses were not previously recognized1.8 7.3 4.1 
Reductions for expected credit losses on securities where credit losses were previously recognized(6.2)(2.4)(3.5)
Securities sold/redeemed/matured(0.9)(0.3)(0.4)
Balance at end of year$0.6 $5.9 $1.3 
The Group assesses each quarter whether the decline in fair value of an available-for-sale security below its amortized cost is the result of a credit loss. All available-for-sale securities with unrealized losses are reviewed. The Group considers many factors to determine whether a credit loss exists, including the extent to which fair value is below cost, the implied yield to maturity, rating downgrades of the security and whether or not the issuer has failed to make scheduled principal or interest payments. The Group also takes into consideration information about the financial condition of the issuer and industry factors that could negatively impact the capital markets.
If the decline in fair value of an available-for-sale security below its amortized cost is considered to be the result of a credit loss, the Group compares the estimated present value of the cash flows expected to be collected to the amortized cost of the security. The extent to which the estimated present value of the cash flows expected to be collected is less than the amortized cost of the security represents the expected credit loss, which is recorded as an allowance and recognized in net income.
e.Other investments, at fair value
The following table provides a summary of the Group’s other investments by investment strategy:
December 31, 2025December 31, 2024
Fair Value%Fair Value%
Fixed income funds$243.0 50%$— %
Hedge funds
Credit25.0 5%22.3 12%
Global macro41.6 9%44.8 22%
Long/short67.4 14%44.9 22%
Multi-strategy and event-driven96.8 20%89.0 44%
Total hedge funds230.8 48%201.0 100%
Private credit funds11.92%%
Total other investments$485.7 100%$201.0 100%
The fixed income fund investments are structured as commingled investment funds managed by third-party managers. During 2025 the Group invested in:
A UCITS (Undertakings for Collective Investment in Transferable Securities) fund that is actively investing in primarily global investment-grade credit securities. The fund has an average credit rating of A.
An ICAV (Irish collective asset-management vehicle) fund that is structured as a limited partnership. The fund invests in a diverse portfolio of primarily high yield corporate debt securities and bank loans. The fund has an average credit rating of B+.
An open-ended Luxembourg based fund that is investing in investment-grade and short-dated subscription line financing for private funds. The fund has an average credit rating of AA.
At December 31, 2025, approximately $63.4 million (December 31, 2024: $nil) of the fixed income funds were subject to lock-ups or hold-backs and are not redeemable within twelve months. The remaining funds can be redeemed within 30 days’ notice.
At December 31, 2025, the Group had $12.2 million (December 31, 2024: $nil) of unfunded investment commitments to fixed income funds, which are callable by the relevant investment managers.
In 2024, the Group invested in a number of hedge funds which are structured as limited partnerships and are managed by third-party managers. The individual hedge fund strategies include credit, global macro, long/short, multi strategy and event-driven.
Other investments in hedge funds are redeemable over periods ranging from one month to greater than twelve months. The common redemption restrictions which may impact the Group's ability to redeem hedge funds are lock-up periods, hold-backs and gates. A lock-up period is the initial amount of time an investor is contractually required to remain invested in the fund before having the ability to redeem in whole or in part. A hold-back entitles the fund to retain up to 10% of a total redemption request, pending completion of the external audit for the financial year in which the redemption occurs. A gate is a suspension of redemptions which may be implemented by the investment manager of the fund to defer, in whole or in part, the redemption request in the event the aggregate amount of redemption requests exceeds a specified percentage of the fund’s net assets. At December 31, 2025, approximately 94% (December 31, 2024: 80%) of the total hedge fund investment can be redeemed within the next twelve months, while approximately 6% (December 31, 2024: 20%) of the total hedge fund investment could be subject to lock-ups or hold-backs and are not redeemable within twelve months. At December 31, 2025, approximately 1% (December 31, 2024: —%) of the hedge funds were subject to a gate. At December 31, 2025, we committed an additional $110 million to invest in hedge funds. These trades had an effective date of January 1, 2026.
In 2025 the Group invested in a private credit fund which is structured as a limited partnership and is managed by a third-party manager. The private credit fund strategy includes investing in portfolio debt securities related to certain private credit asset classes, including direct lending, specialty finance and credit opportunities.
At December 31, 2025 the Group had $108.1 million (December 31, 2024: $nil) of unfunded commitments as a limited partner in private credit funds. The Company generally has no right to redeem its interest in any of these private credit funds in advance of dissolution of the applicable limited partnerships. Instead, distributions are received by the Company in connection with the liquidation or maturity of the underlying private credit assets of the fund. It is estimated that the majority of the underlying assets of the limited partnerships will liquidate over 5 to 10 years from inception of the limited partnership.
f.Net investment income and net realized and unrealized investment gains
The components of net investment return are as follows:
202520242023
Net interest and dividend income$192.6 $195.8 $123.5 
Investment expenses(8.6)(5.3)(4.0)
Net investment income184.0 190.5 119.5 
Net realized and unrealized gains on other investments12.9 0.7 5.8 
Net realized gains/(losses) on fixed maturity securities, available-for-sale4.6 (24.7)(0.7)
Change in provision for expected credit losses 5.3 (4.6)(0.2)
Net realized and unrealized investment gains/(losses)22.8 (28.6)4.9 
Total realized and unrealized investments gains/(losses) and net investment income$206.8 $161.9 $124.4 
v3.25.4
Fair Value Measurements
12 Months Ended
Dec. 31, 2025
Fair Value Disclosures [Abstract]  
Fair Value Measurements
5.           Fair Value Measurements
FASB ASC 820-10, Fair Value Measurements and Disclosures, defines fair value, establishes a consistent framework for measuring fair value and requires disclosures about fair value measurements. The standard requires the Group to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value.
Fair value hierarchy
FASB ASC 820-10 specifies a hierarchy of inputs based on whether the inputs are observable or unobservable. Observable inputs are developed using market data and reflect market participant assumptions, while unobservable inputs reflect the Group’s market assumptions. The fair value hierarchy is as follows:
Level 1: Inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities traded in active markets. The fair value is determined by multiplying the quoted price by the quantity held by the Group.
Level 2: Inputs to the valuation methodology include quoted prices for similar assets or liabilities in active markets, quoted prices (e.g. interest rates, yield curves, prepayment spreads, default rate, etc.) for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability or can be corroborated by observable market data.
Level 3: Inputs to the valuation methodology are unobservable for the asset or liability and are significant to the fair value measurement. Significant management assumptions can be used to establish management’s best estimate of the assumptions used by other market participants in determining the fair value of the asset or liability.
As required under the fair value hierarchy, the Group considers relevant and observable market inputs in its valuations where possible. The frequency of transactions, the size of the bid-ask spread and the amount of adjustment necessary when comparing similar transactions are all factors in determining the liquidity of markets and the relevance of observable prices in those markets.
The Group’s policy with respect to transfer between levels of the fair value hierarchy is to recognize transfers into and out of each level as of the end of the reporting period.
Determination of fair value
The following section describes the valuation methodologies used by the Group to measure assets and liabilities at fair value, including an indication of the level within the fair value hierarchy in which each asset or liability is generally classified.
Fixed maturity securities, available-for-sale
Fair values for all fixed maturity securities, available-for-sale, are independently provided by the investment administrator, investment custodians, and investment managers, each of which utilize internationally recognized independent pricing services.
For determining the fair value of securities that are not actively traded, in general, pricing services use “matrix pricing” in which the independent pricing service uses observable market inputs including, but not limited to, reported trades, benchmark yields, broker-dealer quotes, interest rates, prepayment spreads, default rates and such other inputs as are available from market sources to determine a reasonable fair value.
The following describes the techniques generally used to determine the fair value of the Group’s fixed maturity securities by asset class.
U.S. Treasuries are bonds issued by the U.S. government. The significant inputs used to determine the fair value of these securities are based on quoted prices in active markets for identical assets and are therefore classified within Level 1.
Agency securities consist of securities issued by U.S. and non-U.S. government sponsored agencies such as the Federal National Mortgage Association, the Federal Home Loan Mortgage Corporation, government development banks and other agencies which are not mortgage pass-through. The fair values of these securities are determined using the spread above the risk-free yield curve. As the yields for the risk-free yield curve and the spreads are observable market inputs, the fair values of these securities are classified as Level 2.
Non-U.S. government securities consist of bonds issued by non-U.S. governments and supranationals. The significant inputs used to determine the fair value of these securities include the spread above the risk-free yield curve, reported trades and broker-dealer quotes. These are considered to be observable market inputs and, therefore, the fair values of these securities are classified within Level 2.
Corporate bonds consist primarily of investment-grade debt of a wide variety of corporate issuers and industries. When available, significant inputs are used to determine the fair value of these securities and are based on quoted prices in active markets for similar assets. When not available, the fair values of these securities are determined using the spread above the risk-free yield
curve, reported trades, broker-dealer quotes, benchmark yields, and industry and market indicators. The fair values of these securities are classified as Level 2.
Residential mortgage-backed securities include agency mortgage-backed securities and agency collateralized mortgage obligations. These are individually evaluated using option adjusted spreads (“OAS”) and nominal spreads. The OAS valuations use a third-party prepayment model and OAS. Spreads are based upon tranche type and average life volatility. These spreads are gathered from dealer quotes, trade prices, and the new issue market. The fair values of these securities are classified as Level 2.
Commercial mortgage-backed securities consist of investment grade bonds backed by pools of loans with underlying collateral. Securities held in this sector are primarily priced by pricing services. Inputs to the valuation process include broker-dealer quotes and other available trade information, prepayment speeds, current price data, the swap curve as well as cash settlement. The fair values of these securities are classified as Level 2.
Other asset-backed securities consist of investment grade bonds backed by pools of loans with underlying collateral. The underlying collateral for asset-backed securities consists mainly of student loans, automobile loans and credit card receivables. These securities are primarily priced by index providers and pricing vendors. Inputs to the valuation process include broker-dealer quotes and other available trade information, prepayment speeds, tranche type, interest rate data and credit spreads. The Group classifies these securities within Level 2.
Short-term investments
The Group’s short-term investments are classified within the fair value hierarchy using the methodologies specified for our fixed maturity securities above.
The Group also invests in money market funds that are classified within Level 1 as their fair values are based on the publicly available net asset value per share.
Other investments
Fair values for the Group’s investments in fixed income funds, hedge funds and private credit funds are based on their respective net asset values and are excluded from the fair value hierarchy table below.
Derivative assets and liabilities
Exchange-traded derivatives, measured at fair value using quoted prices in active markets where available, are classified as Level 1 of the fair value hierarchy.
Derivatives without quoted prices in an active market and derivatives executed over the counter are valued using internal valuation techniques that consider the time value of money, volatility, the current market and contractual prices of underlying financial instruments. These derivative instruments are classified as either Level 2 or Level 3 depending upon the observability of the significant inputs to the model. The valuation techniques and key inputs depend on the type of derivative and the nature of the underlying instrument.
The following tables present the financial instruments measured at fair value on a basis at December 31, 2025 and 2024:
December 31, 2025
AssetsLevel 1Level 2Level 3Total
Fixed maturity securities
U.S. Treasuries$484.2 $— $— $484.2 
Agencies— 6.9 — 6.9 
Non-U.S. government— 47.2 — 47.2 
Corporate bonds— 1,652.2 — 1,652.2 
Residential mortgage-backed— 249.9 — 249.9 
Commercial mortgage-backed— 1.0 — 1.0 
Other asset-backed securities— 199.0 — 199.0 
Total fixed maturity securities484.2 2,156.2  2,640.4 
Short-term investments
Corporate bonds— 1.0 — 1.0 
U.S. Treasuries109.9 — — 109.9 
Other asset-backed securities— 0.4 — 0.4 
Total short-term investments109.9 1.4  111.3 
Other assets
Investments pending settlement4.8 — — 4.8 
Derivative assets— 2.4 — 2.4 
Total other assets4.8 2.4  7.2 
Total assets measured at fair value$598.9 $2,160.0 $ $2,758.9 
Liabilities
Other liabilities
Derivative liabilities$— $(1.7)$— $(1.7)
Investments pending settlement(6.6)— — (6.6)
Total other liabilities(6.6)(1.7) (8.3)
Total liabilities measured at fair value$(6.6)$(1.7)$ $(8.3)
December 31, 2024
AssetsLevel 1Level 2Level 3Total
Fixed maturity securities
U.S. Treasuries$746.6 $— $— $746.6 
Agencies— 11.5 — 11.5 
Non-U.S. government— 46.4 — 46.4 
Corporate bonds— 1,913.2 — 1,913.2 
Residential mortgage-backed— 279.1 — 279.1 
Commercial mortgage-backed— 0.4 — 0.4 
Other asset-backed securities— 414.4 — 414.4 
Total fixed maturity securities746.6 2,665.0  3,411.6 
Short-term investments
Corporate bonds— 1.1 — 1.1 
U.S. Treasuries220.7 — — 220.7 
Other asset-backed securities— 0.3 — 0.3 
Total short-term investments220.7 1.4  222.1 
Other assets
Investments pending settlement0.5 — — 0.5 
Total other assets0.5   0.5 
Total assets measured at fair value$967.8 $2,666.4 $ $3,634.2 
Liabilities
Other liabilities
Derivative liabilities$— $(0.5)$— $(0.5)
Investments pending settlement(21.1)— — (21.1)
Total other liabilities(21.1)(0.5) (21.6)
Total liabilities measured at fair value$(21.1)$(0.5)$ $(21.6)
There were no transfers into or out of Level 1 and Level 2 during the year ended December 31, 2025 and December 31, 2024.

Fair value of financial instrument liabilities
The following table presents financial instruments for which the carrying value differs from the estimated fair values at December 31, 2025 and 2024. The fair values of the below financial instruments are based on observable inputs and are considered Level 2 measurements.
December 31, 2025December 31, 2024
Fair ValueCarrying ValueFair ValueCarrying Value
7.750% Subordinated notes due 2055
$431.0 $393.5 $— $— 
4.875% Senior notes due 2030
327.7 326.4 319.7 325.6 
6.625% Fixed Rate Reset Junior Subordinated notes due 2041
124.4 123.3 123.2 123.3 
Preference securities
$— $— $57.2 $58.4 
v3.25.4
Total Cash, Cash Equivalents, Restricted Cash and Restricted Investments
12 Months Ended
Dec. 31, 2025
Cash and Cash Equivalents [Abstract]  
Total Cash, Cash Equivalents, Restricted Cash and Restricted Investments
6.           Total Cash, Cash Equivalents, Restricted Cash and Restricted Investments
The Group has cash and investments in trust funds that support the insurance contracts written on certain lines of business and in segregated portfolios primarily to provide collateral for letters of credit. The following table provides a summary of cash and cash equivalents, restricted cash and restricted investments at December 31, 2025 and 2024:
December 31, 2025December 31, 2024
Cash and cash equivalents$873.0 $743.0 
Restricted cash securing letter of credit facilities21.5 51.6 
Restricted cash securing insurance and reinsurance contracts353.1 152.0 
Total cash, cash equivalents and restricted cash1,247.6 946.6 
Restricted investments securing reinsurance contracts and letter of credit facilities850.7 1,328.7 
Total cash, cash equivalents, restricted cash and restricted investments$2,098.3 $2,275.3 
v3.25.4
Derivative Financial Instruments
12 Months Ended
Dec. 31, 2025
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Derivative Financial Instruments
7.           Derivative Financial Instruments
The Group enters into derivative instruments such as futures and swaps primarily for fixed income portfolio interest rate and credit exposure management, and forward contracts for foreign currency exposure management. The Group’s derivative instruments are generally traded under International Swaps and Derivatives Association master agreements, which establish the terms of the transactions entered into with the Group’s derivative counterparties. In the event one party becomes insolvent or otherwise defaults on its obligations, a master agreement generally permits the non-defaulting party to accelerate and terminate all outstanding transactions and net the transactions’ marked-to-market values so that a single sum in a single currency will be owed by, or owed to, the non-defaulting party. Effectively, this contractual close-out netting reduces credit exposure from gross to net exposure.
The following tables identify the listing currency, fair value and notional amounts of derivative instruments included in the Consolidated Balance Sheets, categorized by primary underlying risk:
December 31, 2025December 31, 2024
Derivative assets at fair valueDerivative liabilities at fair value
Notional amounts(1)
Derivative assets at fair valueDerivative liabilities at fair value
Notional amounts(1)
Credit default swaps$2.4 $— $2.2 $— $— $— 
Forwards(2)
— (1.7)133.3 — (0.5)31.0 
Total $2.4 $(1.7)$ $(0.5)
__________________
(1)The absolute notional exposure represents the Group’s derivative activity, which is representative of the volume of derivatives held during the year.
(2)Contracts used to primarily manage foreign currency risks in underwriting.
The following table presents the Group’s net realized gains/(losses) and change in net unrealized gains/(losses) relating to derivative trading activities for the years ended December 31, 2025, 2024 and 2023. Net realized gains/(losses) and net unrealized gains/(losses) related to derivatives are included in net realized and unrealized investment gains/(losses) and net foreign exchange gains and losses in the Consolidated Statements of Income.
202520242023
Net realized gains/(losses)Change in net unrealized
gains/(losses)
Net realized gains/(losses)Change in net unrealized gains/(losses)Net realized gains/(losses)Change in net unrealized gains/(losses)
Credit default swaps$— $— $— $— $— $— 
Forwards(1)
$(16.4)$(1.3)$(3.6)$0.6 $3.8 $(7.3)
__________________
(1)Contracts used to primarily manage foreign currency risks in underwriting.
The Group obtains and provides collateral from and to counterparties for over-the-counter derivative financial instruments in accordance with bilateral credit facilities.
The Group does not offset its derivative instruments and presents all amounts in the Consolidated Balance Sheets on a gross basis. Unrealized gains are included within other assets and unrealized losses are included within other liabilities. The Group has pledged cash collateral to counterparties to support the current value of amounts due to the counterparties based on the value of the underlying security.
v3.25.4
Deferred Policy Acquisition Costs
12 Months Ended
Dec. 31, 2025
Insurance [Abstract]  
Deferred Policy Acquisition Costs
8.           Deferred Policy Acquisition Costs
The following table represents a reconciliation of beginning and ending deferred policy acquisition costs at December 31, 2025 and 2024:
December 31, 2025December 31, 2024
Balance at the beginning of the year$877.9 $786.6 
    Acquisition costs deferred1,197.2 1,091.0 
    Amortization of deferred policy acquisition costs(990.1)(999.7)
Balance at the end of the year$1,085.0 $877.9 
v3.25.4
Reserves for Losses and Loss Adjustment Expenses
12 Months Ended
Dec. 31, 2025
Insurance [Abstract]  
Reserves for Losses and Loss Adjustment Expenses
9.           Reserves for Losses and Loss Adjustment Expenses
The reserves for losses and loss adjustment expenses include an amount determined from reported claims, and estimates based on historical loss experience and industry statistics for losses incurred but not reported using a variety of actuarial methods.
The unpaid reported reserves for losses and loss adjustment expenses are established by management based on reports from brokers, ceding companies and insureds and represent the estimated ultimate cost of events or conditions that have been reported to, or specifically identified by, the Group.
IBNR reserves are established by management based on actuarial estimates of ultimate losses and loss adjustment expenses. Inherent in the estimate of ultimate losses and loss adjustment expenses are expected trends in claim severity, frequency of large losses and catastrophes, and other factors which may vary significantly as claims are settled. Actuarial inputs include the Group’s own loss experience, historical insurance industry loss experience, estimates of pricing adequacy trends and management’s professional judgement. Due to the limited historical data available, reliance is placed upon industry data and a review of individual policies. Estimates are calculated at the lowest level line of business, separately for gross and ceded, and for attritional, large and catastrophic claims.
Actuarial methodologies:
The principal actuarial methods, and associated key assumptions including initial expected loss ratios, loss development factors, and the weighting of actuarial methods, used to perform the Group’s loss reserve analysis include:
Initial expected loss ratio
To estimate ultimate losses, the Group multiplies earned premiums by an expected loss ratio. The expected loss ratio is determined using a combination of benchmark data, the business plan, and expert judgement.
Paid and incurred chain ladder
This method estimates ultimate losses by calculating past paid and incurred loss development factors and applying them to exposure periods with further expected loss development. The main underlying assumption of this method is that historical loss development patterns are indicative of future loss development patterns.
Paid and incurred Bornhuetter-Ferguson (“BF”)
This method combines features of the chain ladder and initial expected loss ratio method by using both reported and paid losses as well as an “a priori” expected loss ratio to arrive at an ultimate loss estimate. The weighting between these two methods depends on the maturity of the business. This means that for more recent years a greater weight is placed on the initial expected loss ratio, while for more mature years a greater weight is placed on the loss development patterns.
Benktander: Credible claims reserves
The Benktander method is similar to the Bornhuetter-Ferguson method but replaces the initial loss ratio used within the BF method with the loss estimate from the BF method. The credibility factor is increased as claims develop. It gives more weight to:    
Emerged losses than the BF; and
Initial expected loss ratio rather than the chain ladder.
Catastrophe and large losses
The Group writes insurance and reinsurance contracts that have exposure to natural and man-made catastrophes. The magnitude and complexity of losses associated with these events increases the level of uncertainty and the extent of management judgment required to arrive at the estimate of reserves for losses and loss adjustment expenses. The estimates of reserves related to catastrophe and large losses can be affected by factors including: (i) the inability to access portions of impacted areas, (ii) infrastructure disruptions, (iii) legal and regulatory uncertainties (iv) complexities involved in estimating business interruption losses and additional living expenses (v) the impact of demand surge and fraud (vi) for hurricanes, determining whether damage was caused by flood or wind, and (vii) the limited nature of information available, especially for events that occur near the end of a reporting period. As a result, actual losses may differ materially from current estimates.
To estimate reserves for catastrophe and large losses, the Group conducts a detailed review of policies that have known or potential exposure to specific loss events. This estimation process is carried out on a contract-by-contract basis and can incorporate: (i) data provided by cedants, brokers and other relevant specialists (ii) industry loss estimates and the Group’s estimated market share (iii) exposure data obtained during the underwriting process (iv) outputs from catastrophe and probabilistic models (v) the terms and conditions of the contracts involved, and (vi) expected loss ratios.
Initial reserve estimates are established in the period when a catastrophe event occurs. These estimates are then reviewed and adjusted each subsequent quarter, considering the current information available.
Salvage
Salvage is recorded based on estimated realizable value and is deducted from the reserves for losses and loss adjustment expenses. Certain salvage estimates have a high degree of estimation uncertainty. The estimated realizable values are determined using market data, if relevant and available, recent transaction values for similar assets for which there is observable data, and management’s assessment of factors such as asset condition and age, market liquidity, and the legal challenges associated with realizing value from certain assets. Actual amounts realized may differ materially from estimates due to changes in market conditions, asset-specific factors, and the resolution of legal or regulatory matters. The Group regularly reviews and updates its estimates as new information becomes available.
Unallocated claims adjustments expenses
The Group estimates reserves for unallocated claims adjustment expenses (“ULAE”) based on a percentage of loss reserves as determined by management. However, this may be overridden in exceptional circumstances where this approach is not deemed appropriate. There were no material changes made to the Group’s methodology for calculating reserves for unallocated claims adjustment expenses for the year ended December 31, 2025.
Governance
It is the responsibility of the actuarial function to apply the relevant actuarial methodologies and judgments to the calculation of loss reserves. The Group Actuary presents the recommendations of the actuarial review of the reserves to the Reserving Committee for review, challenge and recommendation, the results of which are included in the Group Actuary’s Reserving Report for approval by the Audit Committee.
The reserve estimates contain an inherent level of uncertainty and actual results may vary, potentially significantly, from the estimates the Group has made. Reserves are reviewed on a quarterly basis and estimates are adjusted to reflect emerging claims experience.
The following table presents a reconciliation of reserves for losses and loss adjustment expenses for the years ended December 31, 2025, 2024 and 2023:
202520242023
Reserves for losses and loss adjustment expenses, beginning of year$3,134.3 $2,448.9 $2,045.2 
Reinsurance recoverable on reserves for losses and loss adjustment expenses(1,255.6)(1,108.6)(976.1)
Net reserves for losses and loss adjustment expenses, beginning of year1,878.7 1,340.3 1,069.1 
Net losses and loss adjustment expenses incurred in respect of losses occurring in:
Current year1,092.8 1,031.2 761.7 
Prior years(3.0)124.6 (62.9)
Total incurred1,089.8 1,155.8 698.8 
Net losses and loss adjustment expenses paid in respect of losses occurring in:
Current year(268.5)(188.4)(110.1)
Prior years(1,314.2)(406.8)(329.4)
Total paid(1,582.7)(595.2)(439.5)
Foreign exchange25.7 (22.2)11.9 
Net reserves for losses and loss adjustment expenses, end of year1,411.5 1,878.7 1,340.3 
Reinsurance recoverable on reserves for losses and loss adjustment expenses1,195.6 1,255.6 1,108.6 
Reserves for losses and loss adjustment expenses, end of year
$2,607.1 $3,134.3 $2,448.9 
As a result of the changes in estimates of insured events in prior years, the reserves for losses and loss adjustment expenses net of reinsurance recoveries decreased by $3.0 million for the year ended December 31, 2025 (2024: increased by $124.6 million, 2023: decreased by $62.9 million).
Net favorable development for the year ended December 31, 2025, resulted from better than expected loss development in the Reinsurance segment, partially offset by net adverse development in the Insurance segment.
The adverse development in the Insurance segment of $77.6 million was driven primarily by an increase in reserves in our Aviation & Aerospace line of business related to the Ukraine Conflict. This increase includes the impact of the settlement of certain aviation litigation related claims during the year, as well as the judgment handed down by the English High Court in June 2025. The increase in loss reserves in Aviation & Aerospace was partially offset by better than expected loss emergence in our Property and Other Insurance lines of business. The favorable development in the Reinsurance segment of $80.6 million was driven by positive development on catastrophe losses and benign prior year attritional experience.
Net adverse development for the year ended December 31, 2024 resulted from net adverse development in the Insurance segment, partially offset by better than expected loss development in the Reinsurance segment. The adverse development in the Insurance segment of $184.6 million was driven primarily by an increase in our Aviation and Aerospace line of business related to the Ukraine Conflict, partially offset by better than expected loss emergence in our Property, Other Insurance and Marine lines of business. This increase related to settlements entered into by the Group in relation to the related litigation as well as an increase in order to reflect developments and information received. The favorable development in the Reinsurance segment of $60.0 million was driven by benign prior year attritional experience and positive development on catastrophe losses.
Net favorable development for the year ended December 31, 2023 resulted from better than expected loss development in the Reinsurance segment related primarily to loss reductions from Hurricane Ian as well as favorable attritional experience driven by benign claim experience on prior year accidents.
a.Incurred and paid loss development tables by accident year
The Group’s loss reserve analysis is based primarily on underwriting year data. The preparation of the below accident year development tables required an allocation of underwriting year data to the corresponding accident year.
Allocations are performed using accident year loss payment and reporting patterns, which are derived from Group specific loss data. Ultimate reserves are allocated based on reserve movement splits between prior and current year and reflects the movement in earned premium by underwriting year.
The following tables present the Group’s total losses and loss adjustment expenses incurred, net of reinsurance and paid losses and loss adjustment expenses by accident year, net of reinsurance. The information has been provided separately for the Insurance and Reinsurance segments.
The reporting of cumulative claims frequency has been deemed to be impracticable as the information necessary to provide meaningful cumulative claims frequency is not available to the Group. Within the Reinsurance segment, the underlying claim count data is not provided for most reinsurance contracts written on a quota share basis, and for certain excess of loss contracts. With respect to the Insurance segment, certain managing general agents (“MGAs”) and brokers report loss data on an aggregate basis. In determining our reserves for losses and loss adjustment expenses, the Group does not generally use claims frequency information as an input to the actuarial methods described in Note 2, Significant Accounting Policies.
Incurred losses and loss adjustment expenses – net of reinsurance
Insurance
Incurred losses and loss adjustment expenses – net of reinsurance
Accident Year2016201720182019202020212022202320242025Total of IBNR
plus expected development on reported losses
<-------------------------------------------------------------------- Unaudited ------------------------------------------------------------->
2016$19.2 $11.2 $9.4 $8.4 $7.0 $4.3 $3.8 $4.0 $3.7 $3.7 $0.1 
201724.516.912.711.611.29.99.49.610.31.0
201845.037.731.630.028.120.918.720.2(9.7)
201968.850.357.761.773.168.068.41.6
2020161.8121.9130.8127.5130.1122.3(61.1)
2021310.3260.9279.6262.0266.2(2.0)
2022678.4660.51,027.81,358.1(69.6)
2023674.6504.5505.032.1
2024907.5655.3139.9
2025921.8547.8
Total$3,931.3 $580.1 
Cumulative paid losses and loss adjustment expenses - net of reinsurance
Accident Year2016201720182019202020212022202320242025
<-------------------------------------------------------------------- Unaudited ------------------------------------------------------------->
2016$— $2.9 $3.8 $4.0 $4.1 $3.7 $3.6 $3.6 $3.6 $3.6 
20172.44.26.17.97.67.47.57.8
20180.55.813.021.520.924.626.627.6
20197.123.224.336.649.259.060.2
202026.6212.3216.2168.0164.7173.9
202144.6123.5188.1213.7241.0
202261.9218.8412.71,376.8
202389.5260.2380.7
2024158.5306.3
2025209.5
Total2,787.4
Reserve FX3.3
ULAE20.8
Liabilities for losses and loss adjustment expenses, net of reinsurance$1,168.0 
Reinsurance
Incurred losses and loss adjustment expenses – net of reinsurance
Accident Year2016201720182019202020212022202320242025Total of IBNR
plus expected development on reported losses
<-------------------------------------------------------------------- Unaudited ------------------------------------------------------------->
2016$74.1 $61.3 $54.0 $48.7 $45.0 $41.1 $40.9 $33.0 $33.1 $33.2 $0.1 
201787.158.751.655.653.055.450.847.445.43.9
201881.890.892.691.284.368.664.963.6(1.0)
201946.447.447.148.539.938.137.31.6
2020193.0226.7245.3241.6245.8237.98.8
2021369.7401.5399.0383.1366.415.1
2022176.4150.4147.8149.624.1
202389.752.052.03.9
2024121.767.913.9
2025175.380.6
Total$1,228.6 $151.0 
Cumulative paid losses and loss adjustment expenses - net of reinsurance
Accident Year2016201720182019202020212022202320242025
<-------------------------------------------------------------------- Unaudited ------------------------------------------------------------->
2016$2.1 $12.0 $20.2 $21.6 $21.8 $22.5 $22.7 $22.9 $33.0 $33.0 
201726.545.047.052.352.734.838.038.539.6
201823.818.942.755.268.363.963.063.4
20193.035.837.436.334.834.535.3
202056.5140.2172.8195.1200.4223.6
2021164.7305.9370.7353.1349.3
202221.979.994.098.6
202322.636.541.5
202432.143.6
202559.0
986.9
Reserve FX(3.1)
ULAE4.9
Liabilities for losses and loss adjustment expenses, net of reinsurance$243.5 
b.Reconciliation of loss development information to the reserves for losses and loss adjustment expenses
The table below reconciles the loss development information to the Group’s reserves for losses and loss adjustment expenses at December 31, 2025 and 2024:
20252024
Reserves for losses and loss adjustment expenses, net of reinsurance
Insurance$1,147.2 $1,611.8 
Reinsurance238.6 237.6 
Total reserves for losses and loss adjustment expenses, net of reinsurance1,385.8 1,849.4 
Reinsurance recoverable on reserves for losses and loss adjustment expenses
Insurance939.2 879.5 
Reinsurance256.4 376.1 
Total reinsurance recoverable on reserves for losses and loss adjustment expenses1,195.6 1,255.6 
Unallocated loss adjustment expenses25.7 29.3 
Total gross reserves for losses and loss adjustment expenses$2,607.1 $3,134.3 
c.Historical loss duration
The Group was incorporated on August 22, 2014 and commenced underwriting in 2015. As a result, the Group has limited historical data and is unable to present a full cycle of loss payments beyond year seven for the Insurance and Reinsurance segments as movements beyond this time horizon are not meaningful and may be misleading to the users of the financial statements.
The following table presents the Group’s historical average annual percentage payout of losses and loss adjustment expenses incurred, net of reinsurance by age at December 31, 2025:
Year 1Year 2Year 3Year 4
Year 5
Year 6Year 7
<------------------------------------------------------------- Unaudited -------------------------------------------------------------->
Insurance15 %25 %17 %52 %%10 %%
Reinsurance34 %35 %15 %%%— %%
The unaudited supplementary information above is a weighted average derived from the incurred losses and loss adjustment expenses - net of reinsurance triangles and cumulative paid losses and loss adjustment expenses - net of reinsurance triangles.
v3.25.4
Reinsurance and Retrocessional Reinsurance
12 Months Ended
Dec. 31, 2025
Insurance [Abstract]  
Reinsurance and Retrocessional Reinsurance
10.          Reinsurance and Retrocessional Reinsurance
The Group uses reinsurance and retrocessional reinsurance to manage its net retention on individual risks as well as overall exposure to losses while providing it with the ability to offer policies with sufficient limits to meet policyholder needs. In a reinsurance transaction, an insurance company transfers, or cedes, all or part of its exposure in return for a portion of the premium. In a retrocessional reinsurance transaction, a reinsurance company transfers, or cedes, all or part of its exposure in return for a portion of the premium. The ceding of insurance does not legally discharge the Group from its primary liability for the full amount of the policies, and the Group will be required to pay the loss and bear collection risk if the reinsurer fails to meet its obligations under the reinsurance or retrocessional agreement.
The following tables provide a breakdown of the Group’s written and earned premiums and losses and loss adjustment expenses from direct business, reinsurance assumed, and reinsurance ceded for the years ended December 31, 2025, 2024 and 2023:
202520242023
Written premiums
Direct$2,937.6 $2,928.1 $2,489.2 
Assumed1,780.0 1,475.0 1,089.8 
Gross premiums written 4,717.6 4,403.1 3,579.0 
Ceded(1,709.0)(2,008.5)(1,442.4)
Net premiums written$3,008.6 $2,394.6 $2,136.6 
202520242023
Premiums earned
Direct$2,528.4 $2,633.2 $1,992.8 
Assumed1,455.1 1,272.5 1,044.5 
Gross premiums earned3,983.5 3,905.7 3,037.3 
Ceded(1,689.8)(1,647.6)(1,204.7)
Net premiums earned$2,293.7 $2,258.1 $1,832.6 
202520242023
Losses and loss adjustment expense
Direct$1,489.2 $1,465.6 $870.2 
Assumed767.0 320.9 343.9 
Losses and loss adjustment expense incurred2,256.2 1,786.5 1,214.1 
Ceded(1,166.4)(630.7)(515.3)
Losses and loss adjustment expense incurred, net$1,089.8 $1,155.8 $698.8 
The Group is exposed to the credit risk of the reinsurers, including the risk that one of its reinsurers becomes insolvent or otherwise unable or unwilling to pay policyholder claims. This credit risk is generally mitigated by either selecting well capitalized, highly rated authorized capacity providers or requiring that the capacity provider post collateral to secure the reinsured risks, which, in some instances, exceeds the related reinsurance recoverable. Allowances are established for amounts deemed uncollectible.
The Group evaluates the financial condition of its reinsurers on a regular basis and monitors concentrations of credit risk with reinsurers. At December 31, 2025, the reinsurance balance recoverable on reserves for losses and loss adjustment expenses was $1,195.6 million (December 31, 2024: $1,255.6 million) and the reinsurance balance recoverable on paid losses was $438.7 million (December 31, 2024: $278.4 million). In evaluating the allowance for expected credit losses, the Group assesses the probability of default and loss given default for each reinsurer. This uses counterparty ratings from a major rating agency and an assessment of the
current market conditions for the likelihood of default. Although the Group has not experienced any credit losses to date, an inability of its reinsurers or retrocessionaires to meet their obligations to it over the relevant exposure periods for any reason could have a material adverse effect on its financial condition and results of operations. Of the Group’s reinsurance balances recoverable on paid losses and on reserves for losses and loss adjustment expenses at December 31, 2025, 87.1% is recoverable from reinsurers rated A- or higher by major rating agencies, 7.7% is collateralized by our reinsurers, and 5.2% is recoverable from reinsurers rated lower than A- by major rating agencies (December 31, 2024: 89.4%, 8.8% and 1.8%, respectively).
The allowance for expected credit losses of the Group's reinsurance recoverables on paid losses and on reserves for losses and loss adjustment expenses was $0.3 million and $0.9 million at December 31, 2025, respectively (December 31, 2024: $0.2 million and $0.8 million).
The following table provides a roll forward of the allowance for expected credit losses of the Group’s reinsurance balances recoverable on paid losses and reserves for losses and loss adjustment expenses:
December 31, 2025December 31, 2024
Balance at the beginning of the year$1.0 $1.3 
Change for provision of expected credit losses0.2 (0.3)
Balance at the end of the year$1.2 $1.0 
The Group is also exposed to credit risk with respect to its premiums and other receivables. The following table provides a roll forward of the allowance for expected credit losses of the Group’s premiums and other receivables:
December 31, 2025December 31, 2024
Balance at the beginning of the year$11.8 $17.3 
Change for provision of expected credit losses4.0 (5.5)
Balance at the end of the year$15.8 $11.8 
Intercompany Retrocessional Reinsurance Arrangements
The Group has entered into various internal quota share and excess of loss retrocession agreements through which FUL and FIID cedes some of its business to FIBL each year.
v3.25.4
Long Term Debt and Preference Securities
12 Months Ended
Dec. 31, 2025
Debt Disclosure [Abstract]  
Long Term Debt and Preference Securities
11.          Long Term Debt and Preference Securities
Long-term debt
On June 13, 2025, the Group issued $400.0 million of its 7.750% Fixed-Rate Reset Subordinated Notes due June 15, 2055 (collectively, the “Subordinated Notes”), with interest payable on June 15 and December 15 of each year, which commenced on December 15, 2025. From the issue date to, but excluding, June 15, 2035, the Subordinated Notes will bear interest at a fixed rate of 7.750% per annum. From and including June 15, 2035, and every five years on June 15 thereafter, the interest rate will reset to the then-current five-year U.S. Treasury rate plus 4.280%, as determined on the applicable reset date. The Subordinated Notes are redeemable at the applicable redemption price, subject to the terms described in the indenture for the Subordinated Notes. However, the Subordinated Notes may not be redeemed if enhanced capital requirements, as established by the Bermuda Monetary Authority (“BMA”), would be breached immediately before or after giving effect to the redemption of such notes, unless the Group replaces the capital represented by the Subordinated Notes to be redeemed or repaid with capital having equal or better capital treatment as the notes under applicable BMA rules. Notwithstanding the foregoing, the Subordinated Notes may not be redeemed prior to June 15, 2030 unless the BMA does not object to such redemption, having been provided notice of the redemption, and the conditions in the foregoing sentence are satisfied. The Subordinated Notes contain covenants, including limitations on liens on the stock of certain designated subsidiaries, limitations on consolidations, mergers, amalgamations and sales of substantially all assets and certain reporting obligations.
On October 16, 2020, the Group issued $105.0 million, and on October 20, 2020, the Group issued a further $20.0 million of its 6.625% Fixed-Rate Reset Junior Subordinated Notes due April 1, 2041 (collectively, the “Junior Notes”) with interest payable on April 1 and October 1 of each year, commencing on April 1, 2021. The interest rate is reset on April 1, 2026 at the U.S. five-year treasury rate on the reset interest determination date plus 6.323%, and every five years on April 1 thereafter. The Junior Notes are redeemable at par value for six months after each interest rate reset date. The Junior Notes contain covenants, including limitations on liens on the stock of certain designated subsidiaries, limitations on consolidations, mergers, amalgamations and sales of substantially all assets and certain reporting obligations.
On June 18, 2020, the Group issued $300.0 million and on July 2, 2020 the Group issued a further $30.0 million of its 4.875% Senior Notes due June 30, 2030 (collectively, the “Senior Notes”), with interest payable on June 30 and December 30 of each year, commencing on December 30, 2020. The Senior Notes are redeemable at the applicable redemption price, subject to the terms
described in the indenture for the Senior Notes. However, the Senior Notes may not be redeemed at any time prior to their maturity if enhanced capital requirements, as established by the BMA, would be breached immediately before or after giving effect to the redemption of such notes, unless, the Group replaces the capital represented by the Senior Notes to be redeemed with capital having equal or better capital treatment as the notes under applicable BMA rules. The Senior Notes contain covenants, including limitations on liens on the stock of certain designated subsidiaries, limitations on consolidations, mergers, amalgamations and sales of substantially all assets and certain reporting obligations.
The following table sets forth the principal amount of the debt issued as well as the unamortized discount and debt issuance costs at December 31, 2025 and 2024:
December 31, 2025December 31, 2024
PrincipalUnamortized discount and debt issuance costsPrincipalUnamortized discount and debt issuance costs
7.750% Fixed Rate Reset Subordinated notes due 2055
$400.0 $(6.5)$— $— 
4.875% Senior notes due 2030
330.0 (3.6)330.0 (4.4)
6.625% Fixed Rate Reset Junior Subordinated notes due 2041
125.0 (1.7)125.0 (1.7)
Total$855.0 $(11.8)$455.0 $(6.1)
Preference securities
In 2015, the Group issued shares of cumulative 9% preference securities with a redemption price equal to $10,000 per share, plus all declared and unpaid dividends (the “Preference Securities”). The Preference Securities were subject to mandatory redemption on June 15, 2050. The Preference Securities were subject to redemption at the option of the Group as follows: (i) if the redemption occurred prior to December 15, 2025, at an amount equal to the present value (calculated using the Treasury Rate for the remaining term to December 15, 2025, plus 0.5%) of the redemption price plus the remaining scheduled dividend payments up to December 15, 2025; or (ii) if the redemption occurred after December 15, 2025, at an amount equal to the redemption price plus all accrued and unpaid dividends, if any, through the date of redemption. On June 13, 2025, the Group redeemed its Preference Securities at their liquidation preference of $58.4 million plus a make-whole payment of $1.2 million, which is included in corporate and other expenses in the Consolidated Statements of Income. At December 31, 2025, there were no Preference Securities outstanding.
Holders of Preference Securities were entitled to receive quarterly dividend payments in the amount per share equal to 9% of the $10,000 liquidation preference per annum.
During the year, the Group paid quarterly preference dividends of $2.6 million (2024: $5.3 million, 2023: $5.2 million) to holders of the Group’s Preference Securities. The preference dividends are recorded as a component of financing costs on the Consolidated Statements of Income.
December 31, 2025December 31, 2024
Preference securities, par value $0.01 per share
Authorized— 1,000,000 
Issued and outstanding:
9% cumulative preference shares
— 5,835 
v3.25.4
Commitments and Contingencies
12 Months Ended
Dec. 31, 2025
Commitments and Contingencies Disclosure [Abstract]  
Commitments and Contingencies
12.          Commitments and Contingencies
a.Letter of credit facilities
At December 31, 2025 and 2024, the Group had the following letter of credit facilities:
December 31, 2025December 31, 2024
BankCommitmentIn UseDate of ExpiryCommitmentIn UseDate of Expiry
Lloyds Bank plc(1)(2)
Unsecured$20.0 $8.8 September 21, 2028$25.0 $19.9 September 21, 2025
Secured115.0 52.0 September 21, 2028100.0 58.1 September 21, 2025
Total Lloyds Bank Plc135.0 60.8 125.0 78.0 
Citibank N.A. London branch(1)(2)
Secured70.0 28.4 December 31, 202670.0 42.9 December 31, 2025
Total Citibank N.A. London branch70.0 28.4 70.0 42.9 
Barclays Bank plc(1)(2)
Unsecured20.0 11.8 September 13, 202860.0 52.2 September 13, 2025
Secured115.0 32.0 September 13, 202880.0 31.0 September 13, 2025
Total Barclays Bank plc135.0 43.8 140.0 83.2 
Bank of Montreal(1)(2)
Unsecured40.0 8.3 September 18, 202640.0 30.7 September 18, 2025
Secured100.0 37.7 September 18, 2026100.0 41.2 September 18, 2025
Total Bank of Montreal140.0 46.0 140.0 71.9 
Total letters of credit facilities$480.0 $179.0 $475.0 $276.0 
__________________
(1)Letters of credit can be issued under the secured letter of credit facilities for the purposes of supporting insurance and reinsurance obligations.
(2)The Facility agreements allow for additional capacity in the form of accordions and uncommitted amounts. The maximum additional capacity from the lenders as of December 31, 2025 was: Lloyds Bank plc $65.0 million; Citibank N.A. London Branch $200.0 million; Barclays Bank plc $65.0 million; and Bank of Montreal $60.0 million.
The following table shows the value of the collateral underlying the secured letter of credit facilities:
BankDecember 31, 2025December 31, 2024
Lloyds Bank plc$57.2 $68.5 
Citibank N.A. London branch32.7 46.9 
Barclays Bank plc35.3 54.5 
Bank of Montreal51.9 46.2 
Total$177.1 $216.1 
The Group's letter of credit facilities are generally bilateral agreements with one to three year terms. The letters of credit issued under the secured letter of credit facilities are fully collateralized. Each of the above facilities are subject to various affirmative, negative and financial covenants that the Group considers to be customary for such borrowings including certain minimum net worth and maximum debt to capitalization standards.
b.Legal proceedings
Similar to the rest of the insurance and reinsurance industry, the Group is from time to time subject to litigation, arbitration and other dispute resolution proceedings in the ordinary course of its business. Such matters generally arise from questions of insurance or reinsurance coverage, including coverage disputes arising from notable natural catastrophes and man-made loss events, the interpretation or application of policy or contract terms, claims handling activities or the enforcement of the Group’s rights and obligations under insurance or reinsurance agreements, and may involve efforts to collect amounts due to the Group or to defend against claims asserted by policyholders, cedants, reinsurers or other counterparties. The Group may also be involved in the investigation, conduct and defense of other potential litigation, disputes and regulatory or governmental inquiries, including matters relating to underwriting or administrative errors or omissions, employment-related claims or other operational or commercial disputes, from time to time in the ordinary course of business. Pursuant to the Group’s insurance and reinsurance arrangements, a number of these disputes are resolved by arbitration or other forms of alternative dispute resolution, or through negotiated resolution, and the Group considers the status of such matters in establishing its reserves for losses and loss adjustment expenses, as appropriate. The
Group is not a party to any litigation or governmental or other proceeding that it believes will have a material impact on the Group’s financial position, results of operations or liquidity.
c.Concentration of credit risk
Credit risk arises out of the failure of a counterparty to perform according to the terms of the contract. The Group underwrites a significant portion of its (re)insurance business through brokers and as a result credit risk exists should any of these brokers be unable to fulfil their contractual obligations with respect to the payments of premium or failure to pass on claims, if there is risk transfer, to the Group.
The Group has policies and standards in place to manage and monitor the credit risk of intermediaries with a focus on day-to-day monitoring of the largest positions. Note 10 (Reinsurance and Retrocessional Reinsurance) describes the credit risk related to the Group’s reinsurance recoverables.
The following table sets forth the Group’s premiums written by broker that individually contributed more than 10% of total gross premiums written for the years ended December 31, 2025, 2024 and 2023:
202520242023
Aon plc19 %13 %13 %
Marsh & McLennan Companies Inc16 %20 %18 %
No other broker or other (re)insurance intermediary individually accounted for more than 10% of GPW in respect of the fiscal years 2025, 2024 and 2023.
d. Lease commitments
The Group’s leases primarily consist of operating leases for its offices in the U.K., Bermuda and Republic of Ireland. During 2024, the Group entered into a new lease in the Republic of Ireland. During 2023, the Group entered into new leases in the U.K. and Bermuda.
Total expected lease payments are based on the lease payments specified in the contract and the stated term, including any options to extend or terminate that are reasonably certain to be exercised.
The Group’s operating leases have remaining lease terms of up to 8.2 years, some of which include options to extend the lease term. The Group considers these options when determining the lease term and measuring its lease liability and right-of-use asset. In addition, the Group’s lease agreements do not contain any material residual value guarantees or material restrictive covenants. Short-term operating leases with an initial term of twelve months or less were excluded from the Group’s Consolidated Balance Sheet and represent an inconsequential amount of operating lease expense. These were entered into for the use of various office fixtures such as photocopiers and other IT equipment.
As most leases do not provide an implicit rate, the Group uses its incremental borrowing rate based on the information available at the lease commencement date in determining the present value of lease payments.
During the year ended December 31, 2025, the Group recognized operating lease expense of $2.1 million (2024: $2.0 million, 2023: $1.5 million). The cash outflows resulting from the operating leases amounted to $2.6 million (2024: $1.0 million, 2023: $0.9 million).
The following table presents the Group’s operating lease right-of-use assets and lease liabilities:
December 31, 2025December 31, 2024
Operating lease right-of-use assets (1)
$9.8 $11.1 
Operating lease liabilities (2)
$12.4 $13.0 
Weighted-average remaining lease term (years)6.47.2
Weight-average discount rate10.8 %10.8 %
__________________
(1)Operating lease right-of-use assets are included in other assets
(2)Operating lease liabilities are included in other liabilities
Future minimum lease commitments at December 31, 2025 under these leases are expected to be as follows:
Future Payments
2026$3.0 
20272.9
20282.6
20292.3
20302.3
2031 and thereafter3.7
Total future annual minimum lease payments16.8
Less: present value discount(4.4)
Total lease liability at December 31, 2025
$12.4 
v3.25.4
Related Party Transactions
12 Months Ended
Dec. 31, 2025
Related Party Transactions [Abstract]  
Related Party Transactions
13.          Related Party Transactions
On January 3, 2023, TFP acquired 9.9% of the common shares of the Group. Certain directors, executive officers and management of TFP also own common shares of the Group.
On December 20, 2022, the Group and The Fidelis Partnership entered into a rolling 10-year framework agreement (the “Framework Agreement”), effective January 1, 2023, that governs the ongoing relationship between the two groups. Years one to three roll automatically, whereas from year four onwards, the Framework Agreement will roll at the sole written election of the Group, with such election to be delivered at least 90 days prior to the commencement of the subsequent contract year. Any decision by the Group to elect not to roll the Framework Agreement will mean that the remainder of the 10-year terms then in effect will continue in place. An election to roll the 10-year term of the Framework Agreement was delivered on October 1, 2025.
Substantially all of the underwriting activities of FIBL, FUL and FIID have been outsourced to the corresponding operating subsidiaries of TFP on a jurisdictional basis. TFP manages origination, underwriting, underwriting administration and claims handling under delegated authority agreements with the Group. Other services provided by TFP to the Group include sourcing and administering the outwards reinsurance program, and support with business planning, capital management, insurance contract accounting and information technology. The Framework Agreement provides for the payment of the following fees with effect from January 1, 2023:
a.Ceding commissions: (i) a ceding commission of 11.5% of net premiums written of open market business procured by The Fidelis Partnership on or after January 1, 2023; (ii) a ceding commission of 3.0% of net premiums written of business sourced by The Fidelis Partnership via third party managing general underwriters on or after January 1, 2023; and (iii) a portfolio management fee of 3.0% of net premiums written of the business sourced by The Fidelis Partnership.
b.Profit commission: a profit commission of 20.0% of the aggregate operating profit (defined as underwriting income on business written by The Fidelis Partnership, subject to certain parameters for the allocation of general and administrative expenses, financing costs and other items, and excluding investment income), subject to a hurdle rate of return of 5.0% of underwriting return on equity.
For insurance contracts sourced by The Fidelis Partnership’s Managing General Agent incubator platform, Pine Walk, the fees and commissions follow separately negotiated arrangements and will not attract additional commissions under the terms of the Framework Agreement other than the portfolio management fee of 3.0%.
The following table summarizes The Fidelis Partnership commissions earned, which are included in policy acquisition expenses in the Consolidated Statements of Income:
202520242023
Ceding commission expense$325.0 $311.1 $166.2 
Profit commission expense3.8 — 59.1 
Total commissions$328.8 $311.1 $225.3 
Amounts receivable from TFP at December 31, 2025 of $174.8 million (December 31, 2024: $208.9 million) primarily consist of amounts collected by TFP on behalf of the Group that were not remitted prior to the end of the period. Amounts payable to TFP at December 31, 2025 of $457.7 million (December 31, 2024: $385.8 million) primarily consist of amounts payable to TFP for ceding and profit commissions, and claims paid by TFP on the Group’s behalf.
The Framework Agreement also provides that, in respect of commissions and profit commissions on ceded quota share business the Group shall retain 1.0% of reinsurance premiums ceded and the remainder is to be paid to TFP. Commissions on ceded business for
the year ended December 31, 2025 of $115.9 million (2024: $104.8 million, 2023: $54.4 million) were paid to TFP. For the year ended December 31, 2025 profit commissions of $27.5 million (2024: $68.6 million, 2023: $31.6 million) were paid to TFP.
Insurance contracts sourced by Pine Walk contain profit commissions based on the results of each individual contract. The expense for the year ended December 31, 2025 was $53.4 million (2024: $51.6 million, 2023: $15.9 million) and was included within policy acquisition expenses.
TFP provides the Group with certain support services on a cost-plus basis, such as support with business planning, insurance contract accounting and information technology. Included within general and administrative expenses for the year ended December 31, 2025 are charges of $4.5 million (2024: $6.5 million, 2023: $5.6 million) from TFP for such services.
19.          Separation Transactions
On January 3, 2023, the Group completed a transaction pursuant to which (i) Pine Walk and FML were distributed to shareholders to form a new managing general underwriting business, The Fidelis Partnership and (ii) The Fidelis Partnership was acquired by a consortium of investors. Following the consummation of the Separation Transactions, The Fidelis Partnership acquired 9.9% of the common shares in the Group.
The Separation Transactions resulted in certain shareholders receiving cash in lieu of their interest in The Fidelis Partnership. As a result, the distribution of The Fidelis Partnership was recorded at its fair value of $1,775.0 million. The fair value was determined in accordance with the requirements of Financial Accounting Standards Board Accounting Standards Codification 820 – Fair Value Measurements (“ASC 820”). We obtained the services of a third-party independent valuation expert in arriving at that determination of fair value. ASC 820 explains the concept of fair value for financial reporting. Under ASC 820, fair value is a market-based measurement, not an entity specific measurement. The objective of ASC 820 is to estimate the price at which an orderly transaction to sell the asset would take place between market participants at the measurement date under current market conditions (that is, an exit price at the measurement date from the perspective of a market participant).
When a price for an identical asset is not observable, a reporting entity measures fair value using another valuation technique that maximizes the use of relevant observable inputs and minimizes the use of unobservable inputs. Fair value is measured using the assumptions that market participants would use when pricing the asset or liability, including assumptions about risk.
For purposes of the valuation of The Fidelis Partnership, we used an income approach using a discounted cash flow methodology, and a market approach using comparable listed trading and precedent transaction multiples. These approaches generated a range of values for The Fidelis Partnership of $1.7 billion to $1.9 billion. The determined fair value for The Fidelis Partnership of $1,775.0 million was based on the price of the most recent transactions in The Fidelis Partnership shares, and close to the mid-point of the valuation range. On January 3, 2023, following the distribution of The Fidelis Partnership to shareholders of the Group, certain shareholders sold their shares, and certain third parties purchased shares, in The Fidelis Partnership at a price per share determined using a fair value of $1,775.0 million.
Immediately prior to the consummation of the Separation Transactions, the Group accelerated the vesting of all unvested Restricted Share Units (“RSUs”). This resulted in the acceleration of compensation expense of $21.0 million and an employer payroll tax expense of $17.3 million in the year ended December 31, 2023. The RSUs and warrants were exercised on the date of the Separation Transactions, resulting in the issuance of 13,553,681 common shares. The RSUs were net settled, resulting in a $50.6 million reduction of additional paid-in capital for the employees’ tax obligations with respect to these awards. The exercise of the warrants triggered the payment of cumulative dividends of $34.1 million.
The distribution of The Fidelis Partnership to shareholders of the Group resulted in the deconsolidation of net assets of $67.9 million, and the cancellation of 97,327,049 common shares in the Group. Following the Separation Transactions there were 110,771,897 common shares issued and outstanding. The distribution resulted in the elimination of the Group’s non-controlling interests, all of which related to the subsidiaries of Pine Walk.
In connection with the successful consummation of the Separation Transactions, the Group incurred professional fees of $28.6 million during the year ended December 31, 2023.
The net gain on distribution of The Fidelis Partnership of $1,639.1 million has been calculated as the fair value of The Fidelis Partnership of $1,775.0 million, less the net assets of The Fidelis Partnership of $67.9 million and less the direct costs of the Separation Transactions of $68.0 million. Direct costs primarily related to professional fees of $28.6 million, acceleration of compensation expense of $21.0 million and an employer payroll tax expense of $17.3 million. Within operating activities on the Consolidated Statements of Cash Flows, the revaluation of The Fidelis Partnership of $1,707.1 million, being the fair value of The Fidelis Partnership of $1,775.0 million less the net assets of $67.9 million, is shown as a non-cash adjustment to reconcile net income to net cash provided by operating activities.
On January 3, 2023, the financial statements of Pine Walk and FML have been deconsolidated and the non-controlling interests were disposed upon consummation of the Separation Transactions.
v3.25.4
Statutory Requirements and Dividend Restrictions
12 Months Ended
Dec. 31, 2025
Insurance [Abstract]  
Statutory Requirements and Dividend Restrictions
14.          Statutory Requirements and Dividend Restrictions
The Group’s insurance and reinsurance subsidiaries are governed by laws and regulations in the jurisdictions in which they conduct business, as outlined below. These regulations impose limitations on the amount of dividends that can be paid by those subsidiaries without obtaining prior consent from the regulatory authorities. Additionally, they mandate minimum statutory capital and surplus requirements based on the Group’s current operations.
The statutory capital and surplus and minimum required statutory capital and surplus for the Group’s regulatory jurisdictions is as follows:
December 31, 2025December 31, 2024
Bermuda(1)
United
Kingdom(2)
Republic of Ireland(2)
Bermuda(1)
United
Kingdom(2)
Republic of Ireland(2)
Required statutory capital and surplus$1,095.0 $535.0 $95.0 $910.0 $540.0 $100.0 
Actual statutory capital and surplus$2,220.0 $1,055.0 $165.0 $1,830.0 $950.0 $175.0 
__________________
(1)Required statutory capital and surplus represents the Enhanced Capital Requirement (“ECR”).
(2)Required statutory capital and surplus represents the Solvency UK/Solvency II Solvency Capital Requirement (“SCR”).
Statutory net income/(loss) of the Group’s regulated insurance operations are detailed below:
202520242023
Bermuda$158.3 $67.3 $345.2 
United Kingdom$162.9 115.0 68.1 
Republic of Ireland$(8.4)$(3.8)$19.3 
Significant differences between the statutory financial statements and statements prepared in accordance with U.S. GAAP are: (i) the statutory financial statements of FIBL include a liability for a letter of credit in favor of FUL, and (ii) at December 31, 2023, the BMA required the exclusion of the net deferred tax asset of $90.0 million in connection with the implementation of the Bermuda corporate income tax (Note 18, Income Taxes)) from FIBL’s statutory financial statements. The BMA revised the requirements so that the net deferred tax asset is admitted in the statutory financial statements at December 31, 2024.
There were no prescribed or permitted regulatory accounting practices for any of the Group’s insurance or reinsurance entities that resulted in reported statutory surplus that differed from that which would have been reported under the prescribed practices of the respective regulatory authorities.
Bermuda operations
The BMA acts as group supervisor and has designated FIBL as the ‘designated insurer’ of the Group. In accordance with the Group supervision and insurance group solvency rules, the Group is required to prepare and submit audited Group U.S. GAAP financial statements, a Group statutory financial return (“SFR”), a Group capital and solvency return (“CSR”) and a Group Quarterly Financial Return (“QFR”). FIBL is also required to prepare and submit to the BMA its own annual audited U.S. GAAP financial statements, SFR and CSR.
As a Class 4 (re)insurer, FIBL is required to maintain available statutory economic capital and surplus at a level equal to or greater than the ECR. The ECR is the higher of the prescribed minimum solvency margin (“MSM”) or the required capital calculated by reference to the Bermuda Solvency Capital Requirement (“BSCR”) model. The BSCR model is a risk-based capital model that provides a method for determining a (re)insurer’s capital requirements (statutory capital and surplus) by taking into account the risk characteristics of different aspects of the (re)insurer’s business. In addition, the Group is required to maintain available statutory economic capital and surplus at a level equal to or in excess of the group ECR which is established by reference to the Group BSCR model.
Under the Insurance Act, FIBL is restricted from payment of dividends for amounts greater than 25% of the prior year’s statutory capital and surplus without seeking prior approval from the BMA by submitting an affidavit stating that the proposed reduction of
capital will not cause the insurer to fail to meet its relevant solvency and liquidity margins. At December 31, 2025 the maximum dividend FIBL can pay without approval from the BMA, having met minimum levels of statutory capital and surplus requirements, was approximately $439.2 million (December 31, 2024: $441.0 million).
United Kingdom operations
FUL is authorized by the PRA and regulated by the FCA and the PRA and is subject to the Solvency UK regime. The Solvency UK regime has established capital requirements, risk management and disclosure standards. FUL is required to meet a SCR that is calibrated to ensure a 99.5% confidence level in its ability to meet obligations over a twelve-month period. FUL calculates its SCR in accordance with the standard formula prescribed in the Solvency UK regulations as the assumptions underlying this formula are appropriate for FUL’s risk profile.
The PRA regulatory requirements impose no explicit restrictions on the U.K. subsidiaries' ability to pay a dividend, but FUL would have to notify the PRA 28 days prior to any proposed dividend payment. In addition, the Group's U.K. subsidiaries must comply with the United Kingdom Companies Act of 2006, which provides that dividends may only be paid out of profits available for that purpose.
Ireland operations
FIID is regulated by the CBI and is also subject to the Solvency II regime. FIID is required to meet its SCR which, as for FUL, is calibrated to ensure a 99.5% confidence level in its ability to meet obligations over a twelve-month period. FIID calculates its SCR in accordance with the standard formula prescribed in the Solvency II regulations as the assumptions underlying this formula are appropriate for FIID’s risk profile.
The regulatory requirements impose no explicit restrictions on FIID’s ability to pay a dividend, however FIID must remain in compliance with its SCR following the payment of a dividend. Any proposed dividend payments must be notified to the CBI prior to being made. Under Irish law dividends may only be distributed from profits available for distribution, which consist of accumulated realized profits less accumulated realized losses.
v3.25.4
Earnings Per Share
12 Months Ended
Dec. 31, 2025
Earnings Per Share [Abstract]  
Earnings Per Share
15.          Earnings Per Share
202520242023
Earnings per common share
Net income available to common shareholders$225.5 $113.3 $2,132.5 
Weighted average common shares outstanding106,158,800 115,218,380 114,313,971 
Earnings per common share$2.12 $0.98 $18.65 
Earnings per diluted common share
Net income available to common shareholders$225.5 $113.3 $2,132.5 
Weighted average common shares outstanding106,158,800 115,218,380 114,313,971 
Share-based compensation plans582,248 408,801 10,712 
Weighted average diluted common shares outstanding106,741,048 115,627,181 114,324,683 
Earnings per diluted common share$2.11 $0.98 $18.65 
v3.25.4
Share Capital Authorized and Issued
12 Months Ended
Dec. 31, 2025
Equity [Abstract]  
Share Capital Authorized and Issued
16.          Share Capital Authorized and Issued
The following sets out the number and par value of shares authorized, issued and outstanding:
December 31, 2025December 31, 2024
Common shares, par value $0.01 per share
Authorized600,000,000 600,000,000 
Issued and outstanding
Common shares 96,651,534 111,730,209 
Common shares
Cash dividends of $0.50 per share were declared and paid in the year ended December 31, 2025 (2024: $0.40), resulting in an aggregate dividend of $53.2 million (2024: $46.3 million).
Common share repurchases
On August 6, 2025, the Group’s Board of Directors approved a renewal to the existing share repurchase program (the “Program”), bringing the total current authorization to $200.0 million. Pursuant to the Program, FIHL may repurchase shares through open market purchases pursuant to Rule 10b-18 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), accelerated share repurchases or privately negotiated transactions, as well as pursuant to a trading plan meeting the requirements of Rule 10b5-1 under the Exchange Act.
The following table summarizes common shares repurchased for the years ended December 31, 2025, 2024, and 2023:
202520242023
Common shares repurchased15,184,976 6,570,003 — 
Cost of shares repurchased, inclusive of commissions$261.4 $105.5 $— 
Weighted average price per share, inclusive of commissions$17.22 $16.06 $— 
Included in common shares repurchased in the year ended December 31, 2025 were 7,185,178 common shares repurchased from CVC Falcon Holdings Limited (“CVC”), a longstanding shareholder, for $125.0 million in privately negotiated transactions.
Included in common shares repurchased in the year ended December 31, 2025, were 1,487,359 (2024: 577,383, 2023: $nil) common shares repurchased from TFP for $25.6 million (2024: $9.3 million, 2023: $nil). These transactions were effected at a price equal to the average price paid by the Group on such day for share repurchases from all other shareholders. The repurchase mechanism follows a prescribed format designed to keep TFP’s ownership of FIHL to below 9.8752%. Common shares repurchased by the Group are retired. Common shares repurchased by the Group prior to June 30, 2025 that were held as treasury shares have been retired. The unutilized amount of the share repurchase authorization at December 31, 2025 was $49.4 million.
v3.25.4
Share Compensation and Employee Benefit Plans
12 Months Ended
Dec. 31, 2025
Share-Based Payment Arrangement [Abstract]  
Share Compensation and Employee Benefit Plans
17.          Share Compensation and Employee Benefit Plans
Share Compensation
At December 31, 2025, the Group’s share-based awards consisted of Restricted Share Units (“RSUs”) and Performance Share Units (“PSUs”) with and without market conditions.
2023 Plan
On May 15, 2023, shareholders approved the establishment of the 2023 Share Incentive Plan (the “2023 Plan”). The 2023 Plan authorizes the issuance of options, restricted shares, restricted share units, share appreciation rights or other share-based awards to the Group’s employees and directors. The total number of shares available under the 2023 Plan is 4,913,119. At December 31, 2025, 2,437,367 remain available for grant pursuant to the 2023 Plan.
For the year ended December 31, 2025, the 2023 Plan share compensation expense of $7.9 million (2024: $7.8 million, 2023: $6.5 million) was recorded in general and administrative expenses. The related income tax benefit for the year ended December 31, 2025 was $3.0 million (2024: $1.5 million, 2023: $0.3 million). At December 31, 2025, there was an unamortized balance of $12.5 million (December 31, 2024: $9.8 million) for the 2023 Plan, which will be recognized over the remaining service period. The fair value of awards that vested during the year ended December 31, 2025 was $2.1 million (2024: $6.4 million, 2023: $nil).
Summary of Share Compensation Activity
a.Restricted share units
Number of sharesWeighted average grant date fair value
Outstanding at December 31, 2024555,230$14.18 
Granted598,05115.58 
Vested(96,249)14.33 
Forfeited(66,201)14.87 
Outstanding at December 31, 2025990,831$14.96 
The RSUs generally cliff vest after 3 years, except for RSUs to certain directors that cliff vest after 1 year. During the year ended December 31, 2025, we also granted awards to certain employees that vest in accordance with a three-year graded vesting schedule: 25% on the first anniversary of the grant date, 25% vest on the second anniversary of the grant date, and 50% vest on the third anniversary of the grant date. RSUs awarded are subject to continued provision of services through the applicable vesting date and contain certain restrictions during the vesting period, relating to, among other things, forfeiture in the event of termination of
employment or service and transferability. The outstanding RSUs are expected to be amortized over a weighted average period of 1.8 years.
b.Performance share units without market conditions
Number of sharesWeighted average grant date fair value
Outstanding at December 31, 2024472,211$13.53 
Granted161,47515.36 
Vested(20,571)12.93 
Forfeited(43,665)14.49 
Outstanding at December 31, 2025569,450$14.00 
Fidelis grants PSUs without market conditions to employees that cliff vest after 3 years, subject to the achievement of established performance criteria and continued service during the applicable performance period. Final payouts depend on the level of achievement and can vary between 0% and 200%. The outstanding PSUs are expected to be amortized over a weighted average period of 1.8 years.
c.Performance share units with market conditions
Number of sharesWeighted average grant date fair value
Outstanding at December 31, 2024188,096$14.22 
Granted216,63614.93 
Vested— 
Forfeited(35,432)14.08 
Outstanding at December 31, 2025369,300$14.17 
Fidelis grants PSUs with market conditions that cliff vest after 3 years, subject to the achievement of a target of FIHL’s share price relative to book value per diluted share at the end of the performance period. Final payouts depend on the level of achievement and can vary between 0% and 200%. The outstanding PSUs are expected to be amortized over a weighted average period of 1.7 years.
The grant date fair value of the performance awards is measured using a Monte Carlo simulation model, which incorporated assumptions of the estimated volatility of 35.0% (December 31, 2024: 35.9%) and the risk-free rate of 4.2% (December 31, 2024: 4.4%). Expected volatility was calculated using historic volatility of FIHL’s share price and peer volatility.
Employee Benefit Plans
The Group has entered into an agreement with all employees for defined contribution pension plans, based upon a percentage of eligible compensation. The Group contributed $1.8 million to its defined contribution plans for the year ended December 31, 2025 (2024: $1.6 million, 2023: $1.2 million).
Legacy Share-Based Compensation Plans
Prior to the occurrence of the Separation Transactions (Note 19 (Separation Transactions)), the Group issued RSUs pursuant to plans approved by the Board of Directors in 2016 and 2018. For the year ended December 31, 2023, total compensation expense of $21.0 million, relating to the legacy plans was included in net gain on distribution of The Fidelis Partnership in the Consolidated Statements of Income. At December 31, 2025 and 2024, there was no unamortized balance relating to the legacy plans.
v3.25.4
Income Taxes
12 Months Ended
Dec. 31, 2025
Income Tax Disclosure [Abstract]  
Income Taxes
18.          Income Taxes
As discussed in Note 2 (Significant Accounting Policies), the Group has applied ASU 2023-09 “Improvements to Income Tax Disclosures” retrospectively by providing the required disclosures for all periods presented within this Note.
Income before income taxes is split between the Group’s operating jurisdictions based on the jurisdiction of tax residence:
202520242023
United Kingdom$134.1 $76.1 $1,687.4 
Bermuda152.6 67.0 341.2 
Republic of Ireland(11.1)(6.7)18.6 
Total$275.6 $136.4 $2,047.2 
United Kingdom
FIHL, FUL and FSL are tax resident in the U.K. and are subject to relevant taxes in the U.K. The U.K. rate of corporate income tax increased from 19% to 25% from April 1, 2023.
As FIHL is a UK tax resident company, the U.K. tax authority may assess a Pillar Two top-up tax to be collected from our UK entities through an Income Inclusion Rule to the extent that our non-U.K. operations do not incur a sufficient level of income tax under a framework established by the Organisation for Economic Co-operation and Development (“OECD”).
The 2023 and 2024 tax years are open to examination in the U.K.
Bermuda
On December 27, 2023, the Government of Bermuda passed legislation enacting the Corporate Income Tax Act 2023, which applies a 15% corporate income tax to Bermuda businesses that are part of a multinational enterprise group with annual revenue of €750 million or more, effective on or after January 1, 2025. Consequently, profits in FIBL are subject to tax at a statutory corporate income tax rate of 15% in 2025 (2024: 0%, 2023: 0%).
In January 2025, the OECD published administrative guidance in respect of measures proposed and implemented by certain jurisdictions because of Pillar Two. This guidance states that the deferred tax expense resulting from the reversal of a deferred tax asset recognized in respect of the Bermuda Economic Transition Adjustment (“ETA”) will not be considered to be a covered tax for the purposes of the Pillar Two top-up tax calculation. The guidance provides a two-year grace period (2025 and 2026) during which such deferred tax expense (up to 20% of the total) will be considered to be a covered tax.
An amendment to Bermuda legislation eliminated reductions to the tax basis recognized as part of the Economic Transition Adjustment in 2023. This was enacted in Bermuda on December 11, 2025 in the Corporate Income Tax Amendment (No.2) Act and resulted in a deferred tax benefit of $23.5 million in the year ended December 31, 2025. The Bermuda government amendment was a response to 2025 OECD guidance.
A U.K. Pillar Two top-up tax expense of $21.4 million has been recognized in the year ended December 31, 2025 in connection with the December 11, 2025 Bermuda amendment. This expense arose because, as of December 31, 2025, the U.K. government had not enacted corresponding legislation. On December 4, 2025, the U.K. published draft Finance Bill (No.2) 2025 that would align U.K. tax law with the OECD guidance, if enacted. We anticipate reversing the accrued top-up tax liability upon enactment of the proposed U.K. legislation.
Republic of Ireland
FIID is tax resident in the Republic of Ireland. In addition, FSL has elected for its Irish branch to not be subject to U.K. income taxes. Both FIID and the Irish Branch of FSL are subject to Irish corporate income tax on their trading profits at a rate of 12.5%. In 2025, our Irish entities fell under the transitional Pillar Two safe-harbor exemption, and as such Ireland’s Qualifying Domestic Top-up Tax rate of 15%, assessed at a jurisdictional level, did not apply.
The 2021 to 2024 tax years are open to examination in Ireland.
The Group income tax (expense)/benefit for the years ended December 31, 2025, 2024, and 2023 was as follows:
202520242023
Current tax (expense)/benefit (excluding Pillar Two top-up tax)$(19.8)$(8.8)$(1.2)
Deferred tax (expense)/benefit (excluding rate change)(8.9)(9.8)86.2 
Rate change on deferred tax— — 0.3 
Pillar Two top-up tax (expense)/benefit(21.4)(4.5)— 
Income tax (expense)/benefit$(50.1)$(23.1)$85.3 
202520242023
Income tax (expense)/benefit allocated to net income$(50.1)$(23.1)$85.3 
Income tax (expense)/benefit allocated to other comprehensive income(9.2)(2.8)(9.7)
Total income tax (expense)/benefit allocated to comprehensive income$(59.3)$(25.9)$75.6 
2025
Income/(loss) before income taxesCurrent tax (expense)/ benefitDeferred tax (expense)/benefitTotal income tax (expense)/benefit
United Kingdom$134.1 $(35.2)$(22.4)$(57.6)
Bermuda152.6 (6.7)12.4 5.7 
Republic of Ireland(11.1)0.7 1.1 1.8 
Total$275.6 $(41.2)$(8.9)$(50.1)
2024
Income/(loss) before income taxesCurrent tax (expense)Deferred tax (expense)/benefitTotal income tax (expense)/benefit
United Kingdom$76.1 $(13.3)$(10.0)$(23.3)
Bermuda67.0 — — — 
Republic of Ireland(6.7)— 0.2 0.2 
Total$136.4 $(13.3)$(9.8)$(23.1)
2023
Income before income taxesCurrent tax (expense)/benefitDeferred tax (expense)/benefitTotal income tax (expense)/benefit
United Kingdom$1,687.4 $0.2 $(3.8)$(3.6)
Bermuda341.2 — 90.0 90.0 
Republic of Ireland18.6 (1.4)0.3 (1.1)
Total$2,047.2 $(1.2)$86.5 $85.3 
A reconciliation of the difference between reported income tax (expense)/benefit and the expected income tax (expense)/benefit at the average U.K. statutory income tax rate for the years ended December 31, 2025, 2024 and 2023 is provided below. The expected income tax (expense)/benefit has been calculated using income before income taxes multiplied by the U.K. statutory income tax rate, the income tax rate in FIHL’s country of tax residence.
202520242023
Expected income tax (expense) at the weighted average U.K. income tax rate$(68.9)25.0 %$(34.1)25.0 %$(481.6)23.5 %
Reconciling items
Domestic Tax Effects
Non-taxable income / (expense)(1.6)0.6 %(0.9)0.7 %(1.9)0.1 %
Cross-border tax laws(1)
(21.4)7.8 %(4.5)3.3 %— — %
Net gain on distribution of The Fidelis Partnership not subject to income taxes— — %— — %394.1 (19.3)%
Changes in tax laws or rates— — %— — %0.3 — %
Adjustments in respect of prior periods(1.2)0.4 %1.1 (0.8)%1.1 (0.1)%
Foreign Tax Effects
Bermuda
Statutory income tax rate differential15.3 (5.6)%16.8 (12.3)%80.2 (3.9)%
Changes in tax laws or rates(2)
23.5 (8.5)%— — %90.0 (4.4)%
Foreign tax credits5.1 (1.9)%— — %— — %
Republic of Ireland
Statutory income tax rate differential(1.4)0.5 %(0.8)0.6 %2.0 (0.1)%
Non-taxable income / (expense)(0.2)0.1 %(0.6)0.4 %(0.1)— %
Adjustments in respect of prior periods0.7 (0.3)%(0.1)0.1 %1.2 (0.1)%
Income tax (expense)/benefit$(50.1)18.2 %$(23.1)16.9 %$85.3 (4.2)%
__________________
(1)This row consists exclusively of Pillar Two top-up taxes charged under the Income Inclusion Rule in the U.K. under Finance (No.2) Act 2023. Finance (No. 2) Bill 2025 was published in the U.K. on December 4, 2025 and aligns U.K. legislation with OECD guidance on the treatment of the deferred tax benefit arising on the de-recognition of a portion of the Bermuda ETA. If the Bill is enacted in 2026, our liability for top-up taxes in 2025 will be reversed at the date of enactment.
(2)Changes in tax laws or rates is the recognition and subsequent remeasurement upon the enactment of amendments arising on the Bermuda ETA, discussed above.
The components of the Group’s net deferred tax asset at December 31, 2025 and 2024 are as follows:
December 31, 2025December 31, 2024
Deferred tax assets:
Intangible assets$94.0 $104.4 
Net operating loss carryforwards5.0 27.5 
Other temporary differences2.8 2.9 
Share-based compensation3.2 2.4 
Reserves for losses and loss adjustment expenses8.4 9.1 
Total deferred tax assets113.4 146.3 
Deferred tax liabilities:
Deferred policy acquisition costs— (23.5)
Fixed assets(1.1)(1.7)
Fixed maturity securities, available-for-sale(4.4)— 
Total deferred tax liabilities(5.5)(25.2)
Valuation allowance(2.2)(2.2)
Net deferred tax asset$105.7 $118.9 
The operating loss carryforwards comprise $14.9 million (2024: $98.5 million) arising in the U.K and $10.6 million (2024: $5.5 million) arising in the Republic of Ireland. There is no expiry date for the losses. A valuation allowance of $2.2 million (2024: $2.2 million) has been made against certain loss carryforwards in the U.K. as the Group considers that it is more likely than not that these will not be recovered against future income. The Group’s valuation allowance assessment is based on all available information including projections of future taxable income from each tax-paying component in each tax jurisdiction. Pursuant to the 2023 enactment of the Bermuda corporate income tax and ETA, FIBL recorded a net deferred tax asset of $90.0 million for the year ended December 31, 2023. The ETA is comprised of three components, intangible assets, reserves for losses and loss adjustment expenses, and deferred policy acquisition costs; these have been split in the table above to distinguish the differing rates of run-off. Based on current tax law, the ETA deferred tax asset is expected to be utilized over a fifteen-year period, with substantially all of the deferred tax asset expected to be utilized by December 31, 2034, due to the ten-year utilization period for the deferred tax asset recognized on intangible assets.
The Group has not recognized a deferred tax liability with respect to the undistributed earnings of FIBL or FIID as neither withholding taxes nor other incomes taxes are expected to apply to any distributions from those entities.
The following table presents corporate income taxes paid net of refunds:
202520242023
United Kingdom$24.5 $2.3 $14.7 
Bermuda2.2 — — 
Republic of Ireland— 3.3 — 
Total income tax paid net of refunds$26.7 $5.6 $14.7 
The following table presents a reconciliation of the beginning and ending amounts of unrecognized tax benefits:
202520242023
Balance, beginning of year$75.0 $75.0 $— 
Additions based on tax positions related to the current year— — 75.0 
Balance, end of year$75.0 $75.0 $75.0 
Included in the balance of unrecognized tax benefits at December 31, 2025 is $75.0 million (2024: $75.0 million, 2023: $75.0 million) of tax benefits, that if recognized, would reduce the effective tax rate.
v3.25.4
Separation Transactions
12 Months Ended
Dec. 31, 2025
Related Party Transactions [Abstract]  
Separation Transactions
13.          Related Party Transactions
On January 3, 2023, TFP acquired 9.9% of the common shares of the Group. Certain directors, executive officers and management of TFP also own common shares of the Group.
On December 20, 2022, the Group and The Fidelis Partnership entered into a rolling 10-year framework agreement (the “Framework Agreement”), effective January 1, 2023, that governs the ongoing relationship between the two groups. Years one to three roll automatically, whereas from year four onwards, the Framework Agreement will roll at the sole written election of the Group, with such election to be delivered at least 90 days prior to the commencement of the subsequent contract year. Any decision by the Group to elect not to roll the Framework Agreement will mean that the remainder of the 10-year terms then in effect will continue in place. An election to roll the 10-year term of the Framework Agreement was delivered on October 1, 2025.
Substantially all of the underwriting activities of FIBL, FUL and FIID have been outsourced to the corresponding operating subsidiaries of TFP on a jurisdictional basis. TFP manages origination, underwriting, underwriting administration and claims handling under delegated authority agreements with the Group. Other services provided by TFP to the Group include sourcing and administering the outwards reinsurance program, and support with business planning, capital management, insurance contract accounting and information technology. The Framework Agreement provides for the payment of the following fees with effect from January 1, 2023:
a.Ceding commissions: (i) a ceding commission of 11.5% of net premiums written of open market business procured by The Fidelis Partnership on or after January 1, 2023; (ii) a ceding commission of 3.0% of net premiums written of business sourced by The Fidelis Partnership via third party managing general underwriters on or after January 1, 2023; and (iii) a portfolio management fee of 3.0% of net premiums written of the business sourced by The Fidelis Partnership.
b.Profit commission: a profit commission of 20.0% of the aggregate operating profit (defined as underwriting income on business written by The Fidelis Partnership, subject to certain parameters for the allocation of general and administrative expenses, financing costs and other items, and excluding investment income), subject to a hurdle rate of return of 5.0% of underwriting return on equity.
For insurance contracts sourced by The Fidelis Partnership’s Managing General Agent incubator platform, Pine Walk, the fees and commissions follow separately negotiated arrangements and will not attract additional commissions under the terms of the Framework Agreement other than the portfolio management fee of 3.0%.
The following table summarizes The Fidelis Partnership commissions earned, which are included in policy acquisition expenses in the Consolidated Statements of Income:
202520242023
Ceding commission expense$325.0 $311.1 $166.2 
Profit commission expense3.8 — 59.1 
Total commissions$328.8 $311.1 $225.3 
Amounts receivable from TFP at December 31, 2025 of $174.8 million (December 31, 2024: $208.9 million) primarily consist of amounts collected by TFP on behalf of the Group that were not remitted prior to the end of the period. Amounts payable to TFP at December 31, 2025 of $457.7 million (December 31, 2024: $385.8 million) primarily consist of amounts payable to TFP for ceding and profit commissions, and claims paid by TFP on the Group’s behalf.
The Framework Agreement also provides that, in respect of commissions and profit commissions on ceded quota share business the Group shall retain 1.0% of reinsurance premiums ceded and the remainder is to be paid to TFP. Commissions on ceded business for
the year ended December 31, 2025 of $115.9 million (2024: $104.8 million, 2023: $54.4 million) were paid to TFP. For the year ended December 31, 2025 profit commissions of $27.5 million (2024: $68.6 million, 2023: $31.6 million) were paid to TFP.
Insurance contracts sourced by Pine Walk contain profit commissions based on the results of each individual contract. The expense for the year ended December 31, 2025 was $53.4 million (2024: $51.6 million, 2023: $15.9 million) and was included within policy acquisition expenses.
TFP provides the Group with certain support services on a cost-plus basis, such as support with business planning, insurance contract accounting and information technology. Included within general and administrative expenses for the year ended December 31, 2025 are charges of $4.5 million (2024: $6.5 million, 2023: $5.6 million) from TFP for such services.
19.          Separation Transactions
On January 3, 2023, the Group completed a transaction pursuant to which (i) Pine Walk and FML were distributed to shareholders to form a new managing general underwriting business, The Fidelis Partnership and (ii) The Fidelis Partnership was acquired by a consortium of investors. Following the consummation of the Separation Transactions, The Fidelis Partnership acquired 9.9% of the common shares in the Group.
The Separation Transactions resulted in certain shareholders receiving cash in lieu of their interest in The Fidelis Partnership. As a result, the distribution of The Fidelis Partnership was recorded at its fair value of $1,775.0 million. The fair value was determined in accordance with the requirements of Financial Accounting Standards Board Accounting Standards Codification 820 – Fair Value Measurements (“ASC 820”). We obtained the services of a third-party independent valuation expert in arriving at that determination of fair value. ASC 820 explains the concept of fair value for financial reporting. Under ASC 820, fair value is a market-based measurement, not an entity specific measurement. The objective of ASC 820 is to estimate the price at which an orderly transaction to sell the asset would take place between market participants at the measurement date under current market conditions (that is, an exit price at the measurement date from the perspective of a market participant).
When a price for an identical asset is not observable, a reporting entity measures fair value using another valuation technique that maximizes the use of relevant observable inputs and minimizes the use of unobservable inputs. Fair value is measured using the assumptions that market participants would use when pricing the asset or liability, including assumptions about risk.
For purposes of the valuation of The Fidelis Partnership, we used an income approach using a discounted cash flow methodology, and a market approach using comparable listed trading and precedent transaction multiples. These approaches generated a range of values for The Fidelis Partnership of $1.7 billion to $1.9 billion. The determined fair value for The Fidelis Partnership of $1,775.0 million was based on the price of the most recent transactions in The Fidelis Partnership shares, and close to the mid-point of the valuation range. On January 3, 2023, following the distribution of The Fidelis Partnership to shareholders of the Group, certain shareholders sold their shares, and certain third parties purchased shares, in The Fidelis Partnership at a price per share determined using a fair value of $1,775.0 million.
Immediately prior to the consummation of the Separation Transactions, the Group accelerated the vesting of all unvested Restricted Share Units (“RSUs”). This resulted in the acceleration of compensation expense of $21.0 million and an employer payroll tax expense of $17.3 million in the year ended December 31, 2023. The RSUs and warrants were exercised on the date of the Separation Transactions, resulting in the issuance of 13,553,681 common shares. The RSUs were net settled, resulting in a $50.6 million reduction of additional paid-in capital for the employees’ tax obligations with respect to these awards. The exercise of the warrants triggered the payment of cumulative dividends of $34.1 million.
The distribution of The Fidelis Partnership to shareholders of the Group resulted in the deconsolidation of net assets of $67.9 million, and the cancellation of 97,327,049 common shares in the Group. Following the Separation Transactions there were 110,771,897 common shares issued and outstanding. The distribution resulted in the elimination of the Group’s non-controlling interests, all of which related to the subsidiaries of Pine Walk.
In connection with the successful consummation of the Separation Transactions, the Group incurred professional fees of $28.6 million during the year ended December 31, 2023.
The net gain on distribution of The Fidelis Partnership of $1,639.1 million has been calculated as the fair value of The Fidelis Partnership of $1,775.0 million, less the net assets of The Fidelis Partnership of $67.9 million and less the direct costs of the Separation Transactions of $68.0 million. Direct costs primarily related to professional fees of $28.6 million, acceleration of compensation expense of $21.0 million and an employer payroll tax expense of $17.3 million. Within operating activities on the Consolidated Statements of Cash Flows, the revaluation of The Fidelis Partnership of $1,707.1 million, being the fair value of The Fidelis Partnership of $1,775.0 million less the net assets of $67.9 million, is shown as a non-cash adjustment to reconcile net income to net cash provided by operating activities.
On January 3, 2023, the financial statements of Pine Walk and FML have been deconsolidated and the non-controlling interests were disposed upon consummation of the Separation Transactions.
v3.25.4
Subsequent Events
12 Months Ended
Dec. 31, 2025
Subsequent Events [Abstract]  
Subsequent Events
20.          Subsequent Events
On February 20, 2026, the Board of Directors approved an increase to the current common share repurchase authorization to $400 million, through a combination of open market purchases, accelerated share repurchases and privately negotiated transactions.
Subsequent to December 31, 2025 and through the period ended March 3, 2026, the Group repurchased 10,561,467 common shares at an aggregate cost of $200.8 million and an average price of $19.01 per common share. Included in subsequent common shares repurchased were 8,597,170 common shares from CVC at $19.00 per share for an aggregate purchase price of $163.3 million in a privately negotiated transaction. This resulted in a pro rata repurchase of 942,014 common shares from The Fidelis Partnership for $17.9 million. Following this transaction, CVC no longer holds any ownership interest in Fidelis Insurance Group. The unutilized amount of the share repurchase authorization subsequent to these repurchases was $217.7 million.
On February 25, 2026, the Company announced that it intends to change its name to Pelagos Insurance Capital Limited (“Pelagos Insurance Capital”) and is expected to begin trading under the new ticker symbol (NYSE: PLGO) in May 2026, subject to all necessary regulatory and legal approvals.
v3.25.4
SCHEDULE I - Summary of Investments - Other than Investments in Related Parties
12 Months Ended
Dec. 31, 2025
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Abstract]  
SCHEDULE I - Summary of Investments - Other than Investments in Related Parties
FIDELIS INSURANCE HOLDINGS LIMITED
SCHEDULE I - Summary of Investments - Other than Investments in Related Parties
At December 31, 2025
(Expressed in millions of U.S. dollars)

*Fidelis Insurance Holdings Limited holds no investments other than cash and cash equivalents
v3.25.4
SCHEDULE II - Condensed Financial Information of Registrant
12 Months Ended
Dec. 31, 2025
Condensed Financial Information Disclosure [Abstract]  
SCHEDULE II - Condensed Financial Information of Registrant
FIDELIS INSURANCE HOLDINGS LIMITED
SCHEDULE II - Condensed Financial Information of Registrant
Balance Sheets - Parent company only
At December 31, 2025 and 2024
(Expressed in millions of U.S. dollars, except for share and per share amounts)
December 31, 2025December 31, 2024
Assets
Investments in subsidiaries$3,097.7 $2,809.4 
Cash and cash equivalents141.1 54.8 
Amounts due from subsidiaries44.5 81.4 
Other assets10.0 31.9 
Total assets$3,293.3 $2,977.5 
Liabilities
Amounts due to subsidiaries14.2 7.6 
Long term debt843.2 448.9 
Preference securities— 58.4 
Other liabilities36.3 14.2 
Total liabilities893.7529.1
Shareholders' equity
Common shares ($0.01 par, issued and outstanding: 96,651,534, 2024: 111,730,209)
1.0 1.2 
Common shares held in treasury, at cost (shares held: nil, 2024: 6,570,003)
— (105.5)
Additional paid-in capital1,685.6 2,044.6 
Accumulated other comprehensive income37.1 4.5 
Retained earnings675.9 503.6 
Total shareholders' equity2,399.62,448.4
Total liabilities and shareholders' equity$3,293.3 $2,977.5 

See the Report of Independent Registered Public Accounting Firm
FIDELIS INSURANCE HOLDINGS LIMITED
SCHEDULE II - Condensed Financial Information of Registrant
Statements of Income and Comprehensive Income - Parent company only
For the years ended December 31, 2025, 2024 and 2023
(Expressed in millions of U.S. dollars)

202520242023
Revenues
Net investment income$7.1 $3.7 $4.9 
Dividends from subsidiaries150.0 200.0 110.0 
Other income6.2 9.0 8.3 
Total revenues before net gain on distribution of The Fidelis Partnership163.3 212.7 123.2 
Net gain on distribution of The Fidelis Partnership— — 1,670.8 
Total revenues163.3 212.7 1,794.0 
Expenses
General and administrative expenses44.1 42.8 35.3 
Corporate and other expenses1.2 1.6 3.2 
Financing costs45.2 30.5 30.5 
Net foreign exchange losses0.1 — 3.7 
Total expenses90.6 74.9 72.7 
Income before income taxes72.7 137.8 1,721.3 
Income tax benefit/(expense)(2.8)10.0 14.1 
Net income before equity in net income of subsidiaries69.9 147.8 1,735.4 
Equity in net income/(loss) of subsidiaries155.6 (34.5)397.1 
Net income available to common shareholders225.5 113.3 2,132.5 
Other comprehensive income
Unrealized gains on available-for-sale investments46.4 9.6 81.7 
Reclassification of net realized losses/(gains) recognized in net income(4.6)24.7 0.7 
Income tax expense, all of which relates to unrealized gains on available-for-sale investments(9.2)(2.8)(9.7)
Total other comprehensive income32.6 31.5 72.7 
Comprehensive income attributable to common shareholders$258.1 $144.8 $2,205.2 


See the Report of Independent Registered Public Accounting Firm
FIDELIS INSURANCE HOLDINGS LIMITED
SCHEDULE II - Condensed Financial Information of Registrant
Statements of Cash Flows - Parent company only
For the years ended December 31, 2025, 2024 and 2023
(Expressed in millions of U.S. dollars)
202520242023
Operating activities
Net income$225.5 $113.3 $2,132.5 
Adjustments to reconcile net income after tax to net cash provided by operating activities:
Revaluation of The Fidelis Partnership(1,707.1)
Equity in net (income)/loss of subsidiaries(155.6)34.5(397.1)
Share compensation expense7.9 7.8 27.6 
Accretion, amortization and depreciation0.9 0.7 0.7 
Deferred tax expense23.1 9.6 2.6 
Net changes in assets and liabilities:
Amounts due from The Fidelis Partnership0.2 (0.2)
Amounts due to/from subsidiaries43.5(63.8)(5.4)
Other assets(1.2)0.6 3.0 
Other liabilities22.41.1 11.9 
Net cash provided by operating activities166.5104.068.5
Investing activities
Contributed capital to subsidiaries(100.0)— (90.0)
Net cash used in investing activities(100.0)(90.0)
Financing activities
Dividends on common shares(52.3)(46.2)— 
Repurchase of common shares(261.4)(105.5)— 
Tax paid on withholding shares(0.2)(2.2)(50.6)
Proceeds from issuance of debt, net of issuance costs393.3— — 
Repurchase of preferred securities(59.6)— — 
Proceeds from issuance of common stock, net of issuance costs— 89.4 
Non-controlling interest share transactions— (6.1)
Cumulative dividends on warrants— (34.1)
Net cash provided by/(used in) financing activities19.8(153.9)(1.4)
Net increase/(decrease) in cash, restricted cash, and cash equivalents86.3(49.9)(22.9)
Cash and cash equivalents, beginning of year54.8 104.7 127.6 
Cash and cash equivalents, end of year$141.1 $54.8 $104.7 


See the Report of Independent Registered Public Accounting Firm
v3.25.4
SCHEDULE III - Supplementary Insurance Information
12 Months Ended
Dec. 31, 2025
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Abstract]  
SCHEDULE III - Supplementary Insurance Information
FIDELIS INSURANCE HOLDINGS LIMITED AND SUBSIDIARIES
SCHEDULE III - Supplementary Insurance Information
For the years ended December 31, 2025, 2024 and 2023
(Expressed in millions of U.S. dollars)
2025
Deferred policy acquisition costsReserves for losses and loss adjustment expensesUnearned premiumsNet premiums earned
Net investment income(1)
Losses and loss adjustment expensesPolicy acquisition expenses
Other operating expenses(1)
Net premiums written
Insurance$1,040.5 $2,107.2 $4,153.6 $1,899.4 $— $996.5 $557.6 $— $2,531.9 
Reinsurance44.5 499.9 231.2 394.3 — 93.3103.7— 476.7 
Other— — — — 184.0 — 328.8 96.6 — 
$1,085.0 $2,607.1 $4,384.8 $2,293.7 $184.0 $1,089.8 $990.1 $96.6 $3,008.6 

2024
Deferred policy acquisition costsReserves for losses and loss adjustment expensesUnearned premiumsNet premiums earned
Net investment income(1)
Losses and loss adjustment expensesPolicy acquisition expenses
Other operating expenses(1)
Net premiums written
Insurance$852.9 $2,514.4 $3,484.3 $1,902.4 $— $1,101.5 $604.6 $— $2,050.4 
Reinsurance25.0 619.9 167.2 355.7 — 54.3 84.0 — 344.2 
Other— — — — 190.5 — 311.1 94.3 — 
$877.9 $3,134.3 $3,651.5 $2,258.1 $190.5 $1,155.8 $999.7 $94.3 $2,394.6 

2023
Deferred policy acquisition costsReserves for losses and loss adjustment expensesUnearned premiumsNet premiums earned
Net investment income(1)
Losses and loss adjustment expensesPolicy acquisition expenses
Other operating expenses(1)
Net premiums written
Insurance$764.3 $1,663.2 $3,024.9 $1,577.0 $— $675.1 $429.1 $— $1,880.5 
Reinsurance22.3 785.7 124.6 255.6 — 23.7 69.4 — 256.1 
Other— — — — 119.5 — 225.3 82.7 — 
$786.6 $2,448.9 $3,149.5 $1,832.6 $119.5 $698.8 $723.8 $82.7 $2,136.6 

(1)    The Company does not manage its assets by segment and accordingly net investment income is not allocated to each underwriting segment. In addition, operating expenses are not allocated to segment as employees work across segments.



See the Report of Independent Registered Public Accounting Firm
v3.25.4
SCHEDULE IV - Reinsurance
12 Months Ended
Dec. 31, 2025
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Abstract]  
SCHEDULE IV - Reinsurance
FIDELIS INSURANCE HOLDINGS LIMITED AND SUBSIDIARIES
SCHEDULE IV - Reinsurance
For the years ended December 31, 2025, 2024 and 2023
(Expressed in millions of U.S. dollars)
Direct premiums writtenCeded to other companiesAssumed from other companiesNet amountPercentage of amount assumed to net
2025
Insurance$2,928.7 $1,224.4 $827.6 $2,531.9 32.7 %
Reinsurance8.9484.6 952.4476.7 199.8 %
Total2,937.6 1,709.0 1,780.0 3,008.6 
2024
Insurance2,926.0 1,488.1612.5 2,050.429.9 %
Reinsurance2.1 520.4862.5 344.2250.6 %
Total2,928.1 2,008.5 1,475.0 2,394.6 
2023
Insurance2,488.6 1,079.9471.8 1,880.525.1 %
Reinsurance0.6 362.5618.0 256.1241.3 %
Total$2,489.2 $1,442.4 $1,089.8 $2,136.6 



See the Report of Independent Registered Public Accounting Firm
v3.25.4
SCHEDULE VI - Supplementary Information for Property-Casualty Insurance Operations
12 Months Ended
Dec. 31, 2025
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters [Abstract]  
SCHEDULE VI - Supplementary Information for Property-Casualty Insurance Operations
FIDELIS INSURANCE HOLDINGS LIMITED AND SUBSIDIARIES
SCHEDULE VI - Supplementary Information for Property-Casualty Insurance Operations
For the years ended December 31, 2025, 2024 and 2023
(Expressed in millions of U.S. dollars)

Deferred policy acquisition costsReserves for losses and loss adjustment expensesUnearned premiumsNet premiums earnedNet investment incomeLoss and loss expenses incurred related to current yearLoss and loss expenses incurred related to prior yearPolicy acquisition expensesNet paid losses and loss expensesNet premiums written
2025$1,085.0 $2,607.1 $4,384.8 $2,293.7 $184.0 $(1,092.8)$3.0 $990.1 $1,582.7 $3,008.6 
2024877.9 3,134.3 3,651.5 2,258.1 190.5 (1,031.2)(124.6)999.7 595.2 2,394.6 
2023$786.6 $2,448.9 $3,149.5 $1,832.6 $119.5 $(761.7)$62.9 $723.8 $439.5 $2,136.6 
v3.25.4
Award Timing Disclosure
12 Months Ended
Dec. 31, 2025
Award Timing Disclosures [Line Items]  
Award Timing MNPI Disclosure e have adopted an insider trading policy and related processes, that we believe are reasonably designed to promote compliance with insider trading laws, rules and regulations and the NYSE’s listing standards (collectively, the “Insider Trading Policy”).
Our Insider Trading Policy prohibits the purchase, sale and other transactions with respect to any securities by any director, officer or employee that may be in possession of material non-public information relating to FIHL. Furthermore, the Insider Trading Policy addresses transactions by family members and transactions under our equity compensation plans, tipping and other actions which may be prohibited. It also provides guidance on applicable laws (including guidelines and requirements related to the establishment of Rule 10b5-1 trading plans) and discusses the consequences of an insider trading violation, additional trading restrictions and certain reporting requirements applicable to directors and senior management. Our Insider Trading Policy also prohibits engaging in certain speculative and derivative transactions involving FIHL’s securities, which we believe could “hedge” the risk of owning our securities or otherwise create the appearance of insider trading, including short selling, hedging, short term trading, options trading, purchases of FIHL’s securities on margin, and pledging FIHL’s securities as collateral to secure loans. The process for pre-clearing all transactions in FIHL’s securities is set forth therein and must be followed by all persons subject to the Insider Trading Policy.
A copy of our Insider Trading Policy has been filed with the SEC as Exhibit 11.2 to this report.
v3.25.4
Insider Trading Policies and Procedures
12 Months Ended
Dec. 31, 2025
Insider Trading Policies and Procedures [Line Items]  
Insider Trading Policies and Procedures Adopted true
v3.25.4
Cybersecurity Risk Management and Strategy Disclosure
12 Months Ended
Dec. 31, 2025
Cybersecurity Risk Management, Strategy, and Governance [Line Items]  
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]
Pursuant to applicable regulations, we have established and maintain a formal cybersecurity program to protect our information technology systems and customer data. This program is designed to comply with applicable regulatory requirements, incorporate industry standards, and to evolve with the changing security threat environment through ongoing assessment and measurement. To that end, we have in place, and seek to improve, a comprehensive system of security controls, managed by a dedicated staff, and overseen by our Group Chief Information Security Officer and Chief Technology Officer (the “Group CISO & CTO”), to protect against or otherwise minimize cybersecurity risks. Such risks, including those posed by cyber incidents, form part of our enterprise risk management processes, and we continue to evaluate and assess our compliance in the changing regulatory environment.
Periodically, the services of third party experts are engaged to perform security penetration testing to identify vulnerabilities in our IT environment, and to perform other relevant assessments to determine where improvements might be made with the Group’s cybersecurity arrangements. The output of such tests and assessments are reviewed, and our security controls are updated as necessary to address vulnerabilities and to improve the effectiveness of their operation. In addition, we are subject to independent audits, including those conducted by our internal audit team, which review and assess our compliance with applicable regulations and internal policies. Furthermore, we operate a supplier due diligence process that includes a component to assess the information and cyber security processes operated by third party service providers to ensure they are appropriate to the services being delivered.
Our employees and contractors are required to comply with our IT Acceptable Usage Policy and certify their compliance annually. Cybersecurity awareness training is mandatory for all new hires and for existing employees and contractors on an annual basis. Periodic phishing tests are also conducted to assess employees’ susceptibility to phishing attacks. Additional compulsory cybersecurity training is delivered where necessary.
We have implemented incident response and business continuity plans for our operations, which are regularly reviewed with respect to our business-critical infrastructure and systems. We employ data backup procedures to ensure that our key business systems and data are regularly backed up, and can be restored if necessary. Moreover, our backup information is stored remotely from sites hosting our data, in order to minimize the risk of loss of key data in the event of a disaster or other system outage. Our recovery plans involve arrangements with our off-site data center and cloud infrastructure. We believe the IT function will be able to utilize these plans to efficiently recover key system functionality in the event that our primary systems are unavailable due to various scenarios, such as natural disasters.
Like other businesses, the Group has previously experienced attempts by cyber-criminals to infiltrate its IT infrastructure; however, the Group has not been impacted by any material cybersecurity incidents, and it believes it has taken, and is taking, reasonable steps to mitigate the risk of future cyberattacks. To that end, the Group continues to adapt its cybersecurity training in response to evolving cyber threats and continually improves its technical and administrative security controls. However, there can be no guarantee that these steps will in fact prevent a future cyberattack against the Group. Any failure in our security controls may expose the Group to
potential data loss and damages and potentially significant increases in compliance and litigation costs, and such exposure could have a material adverse effect on the Group’s business, prospects, financial condition or results of operations, and reputation. See Item 3.D. Risk Factors “Risks Relating to the Operations Supporting the Group’s Business — Operational risk exposures, such as IT, human or systems failures (including outsourcing arrangements), are inherent in the Group’s business and may result in losses.”
Cybersecurity Risk Management Processes Integrated [Flag] true
Cybersecurity Risk Management Processes Integrated [Text Block]
Pursuant to applicable regulations, we have established and maintain a formal cybersecurity program to protect our information technology systems and customer data. This program is designed to comply with applicable regulatory requirements, incorporate industry standards, and to evolve with the changing security threat environment through ongoing assessment and measurement. To that end, we have in place, and seek to improve, a comprehensive system of security controls, managed by a dedicated staff, and overseen by our Group Chief Information Security Officer and Chief Technology Officer (the “Group CISO & CTO”), to protect against or otherwise minimize cybersecurity risks. Such risks, including those posed by cyber incidents, form part of our enterprise risk management processes, and we continue to evaluate and assess our compliance in the changing regulatory environment.
Cybersecurity Risk Management Third Party Engaged [Flag] true
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag] true
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag] false
Cybersecurity Risk Board of Directors Oversight [Text Block]
Our Board of Directors, along with the Risk Committee and Audit Committee, oversee our information security program, receiving periodic updates throughout the year on cybersecurity matters from relevant management and audit functions, with these updates being part of their standing agendas. A report on the state of the Group’s IT is presented to the Board every quarter. These reports also contain updates on our IT strategy, including information security strategies and initiatives, event preparedness and incremental improvement efforts. The Group CISO & CTO is expected to provide an annual briefing on the topic of cybersecurity risk management to the Board.
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block] Our Board of Directors, along with the Risk Committee and Audit Committee, oversee our information security program, receiving periodic updates throughout the year on cybersecurity matters from relevant management and audit functions, with these updates being part of their standing agendas
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block] A report on the state of the Group’s IT is presented to the Board every quarter. These reports also contain updates on our IT strategy, including information security strategies and initiatives, event preparedness and incremental improvement efforts. The Group CISO & CTO is expected to provide an annual briefing on the topic of cybersecurity risk management to the Board.
Cybersecurity Risk Role of Management [Text Block]
Our Board of Directors, along with the Risk Committee and Audit Committee, oversee our information security program, receiving periodic updates throughout the year on cybersecurity matters from relevant management and audit functions, with these updates being part of their standing agendas. A report on the state of the Group’s IT is presented to the Board every quarter. These reports also contain updates on our IT strategy, including information security strategies and initiatives, event preparedness and incremental improvement efforts. The Group CISO & CTO is expected to provide an annual briefing on the topic of cybersecurity risk management to the Board.
The Group CISO & CTO is an established information security professional with more than ten years of experience in building and operating information security programs. Our Group CISO & CTO holds the Certified Information Systems Security Professional (CISSP) and ISO 27001 Lead Implementer certifications, and he has managed the global cybersecurity functions of two prominent law firms with active mergers and acquisitions (M&A) practices that necessitated the operation of rigorous information and cybersecurity programs.
Cybersecurity Risk Management Positions or Committees Responsible [Flag] true
Cybersecurity Risk Management Positions or Committees Responsible [Text Block]
Our Board of Directors, along with the Risk Committee and Audit Committee, oversee our information security program, receiving periodic updates throughout the year on cybersecurity matters from relevant management and audit functions, with these updates being part of their standing agendas. A report on the state of the Group’s IT is presented to the Board every quarter. These reports also contain updates on our IT strategy, including information security strategies and initiatives, event preparedness and incremental improvement efforts. The Group CISO & CTO is expected to provide an annual briefing on the topic of cybersecurity risk management to the Board.
Cybersecurity Risk Management Expertise of Management Responsible [Text Block]
The Group CISO & CTO is an established information security professional with more than ten years of experience in building and operating information security programs. Our Group CISO & CTO holds the Certified Information Systems Security Professional (CISSP) and ISO 27001 Lead Implementer certifications, and he has managed the global cybersecurity functions of two prominent law firms with active mergers and acquisitions (M&A) practices that necessitated the operation of rigorous information and cybersecurity programs.
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block] These reports also contain updates on our IT strategy, including information security strategies and initiatives, event preparedness and incremental improvement efforts. The Group CISO & CTO is expected to provide an annual briefing on the topic of cybersecurity risk management to the Board.
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag] true
v3.25.4
Significant Accounting Policies (Policies)
12 Months Ended
Dec. 31, 2025
Accounting Policies [Abstract]  
Basis of presentation
Basis of presentation
The accompanying consolidated financial statements include the results of FIHL and its subsidiaries and have been prepared in conformity with generally accepted accounting principles in the United States (“U.S. GAAP”) and include the results of Fidelis Insurance Holdings Limited and its subsidiaries. All intercompany balances and transactions have been eliminated on consolidation.
Use of estimates, risks and uncertainties
Use of estimates, risks and uncertainties
The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
The most significant estimates reflected in the financial statements include:
Written and earned premiums;
Reserves for losses and loss adjustment expenses;
Reinsurance balance recoverable on reserves for losses and loss adjustment expenses;
Fair value measurements of fixed maturity investments, available-for-sale, and other investments; and
Income tax expense.
Cash and cash equivalents
Cash and cash equivalents
Cash and cash equivalents consist of cash held in banks, money market funds and other short-term, highly liquid investments with original maturity dates of 90 days or less, provided they are not part of the investment portfolio. Cash equivalents are recorded at amortized cost, which approximates fair value due to the short-term, liquid nature of these securities.
Restricted cash and cash equivalents
Restricted cash and cash equivalents
Restricted cash and cash equivalents consist of cash held in segregated or trust accounts, which is unavailable for immediate use by the Group, primarily to provide collateral for letters of credit, reinsurance agreements, and to support the current value of any amounts that may be due to counterparties based on the value of underlying financial instruments. Restricted cash equivalents are recorded at amortized cost, which approximates fair value due to the short-term, liquid nature of these securities.
Investments
Investments
The Group currently classifies its fixed maturity securities and short-term investments as “available-for-sale” (‘AFS’) and, accordingly, they are carried at fair value with the changes in fair value recorded as an unrealized gain or loss component of accumulated other comprehensive income in shareholders’ equity.
Investments with a maturity from three months up to one year from date of purchase are classified as short-term investments.
For all fixed maturity securities, realized gains or losses are determined on the basis of the first-in, first-out method. Realized gains and losses on fixed maturity securities include allowances for expected credit losses. This allowance represents the difference between the security’s amortized cost and the amount expected to be collected over the security’s lifetime.
Unrealized gains and losses represent the difference between the cost, or the cost as adjusted by amortization of any difference between its cost and its redemption value (“amortized cost”), of the security and its fair value at the reporting date and are included within other comprehensive income for securities classified as available-for-sale.
The Group’s other investments consist of a portfolio of fixed income funds, hedge funds and private equity funds that is valued at fair value using net asset value per share as a practical expedient. These funds are not reflected within the fair value hierarchy disclosed in Note 5 (Fair Value Measurements). Prior to December 31, 2024, the Group also held an investment in the Wellington Opportunistic Fixed-Income Undertakings for the Collective Investment in Transferable Securities Fund that was carried at fair value. Realized and unrealized gains on other investments are included in net realized and unrealized investment gains and losses on the Consolidated Statements of Income.
Investment transactions are recorded on a trade date basis. Investments pending settlement include receivables and payables from unsettled trades with brokers. Receivables and payables from unsettled trades are carried at fair value based on quoted prices in active markets for identical assets or derived based on inputs that are observable. Receivables and payables from unsettled trades are classified within other assets and other liabilities, respectively, on the Consolidated Balance Sheets.
Net investment income
Net investment income
Net investment income includes amounts received and accrued in respect of periodic interest (“coupons”) payable to the Group by the issuer of fixed income securities and interest credited on cash and cash equivalents. It also includes amortization of premium and accretion of discount in respect of fixed income securities. Investment management, custody, and investment administration fees are charged against net investment income reported in the Consolidated Statements of Income.
The Group reports accrued investment income separately from investment balances and has elected not to measure an allowance for credit losses for accrued investment income. Any uncollectible accrued interest income is written off in the period it is deemed uncollectible.
Derivative assets and liabilities
Derivative assets and liabilities
All derivatives are recognized in the Consolidated Balance Sheets at fair value on a gross basis and not offset against any collateral pledged or received. Unrealized gains and losses resulting from changes in fair value are included in net realized and unrealized investment gains and losses or net foreign exchange gains and losses in the Consolidated Statements of Income. The Group’s derivative financial instrument assets are included in other assets and derivative financial instrument liabilities are included in other liabilities in the Consolidated Balance Sheets. None of the Group’s derivatives are designated as accounting hedges for financial reporting purposes. Pursuant to the International Swaps and Derivatives Association (“ISDA”) master agreements and other derivative agreements, the Group and its counterparties typically have the ability to settle on a net basis. In addition, in the event a party to one of the ISDA master agreements or other derivative agreements defaults, or a transaction is otherwise subject to termination, the non-
defaulting party generally has the right to set off against payments owed to the defaulting party or collateral held by the defaulting party.
The Group may enter into derivative transactions to manage foreign currency exchange risk, interest rate or duration risk, or other exposure risks. Derivative transactions typically include futures, options, swaps and forwards. Derivative assets represent financial contracts whereby, based upon the contract’s current fair value, the Group will be entitled to receive payments upon settlement. Derivative liabilities represent financial contracts whereby, based upon the contract’s current fair value, the Group will be obligated to make payments upon settlement.
The Group manages foreign currency exposure by substantively balancing assets with liabilities for certain major non-U.S. dollar currencies, or by entering into currency forward contracts. However, there is no guarantee that this will effectively mitigate exposure to foreign exchange gains and losses.
Where a contract includes an embedded derivative, the embedded derivative is recognized separately only if the contract is not recognized at fair value, or the economic characteristics and risks of the embedded derivative are not clearly and closely related to those of the host contract.
Premiums and acquisition costs
Premiums and acquisition costs
Premiums written are recorded on inception of the policy. Premiums written include estimates based on information received from insureds, brokers and cedants, and any subsequent differences arising on such estimates are recorded as premiums written in the period they are determined. Premiums written are earned on a basis consistent with risks covered over the period the coverage is provided. The portion of the premiums written applicable to the unexpired terms of the underlying contracts and policies is recorded as unearned premium.
Reinstatement premiums are recognized as written and earned after the occurrence of a loss and are recorded in accordance with the contract terms based upon management’s estimate of losses and loss adjustment expenses.
Policy acquisition expenses are directly related to the acquisition of insurance premiums and are deferred and amortized over the related policy period in line with earned premium. The Group only defers acquisition costs incurred that are directly related to the successful acquisition of new or renewal insurance contracts, including commissions to agents, including The Fidelis Partnership, brokers and premium taxes. All other acquisition related expenses including indirect costs are expensed as incurred. To the extent that future policy revenues on existing policies are not adequate to cover related costs and expenses, deferred policy acquisition costs are charged to earnings.
The Group evaluates premium deficiency and the recoverability of deferred acquisition costs by determining if the sum of future earned premiums and anticipated investment return is greater than expected future losses and loss adjustment expenses and policy acquisition expenses.
Premiums receivable
Premiums receivable
Premiums receivable includes amounts receivable from insureds, net of brokerage costs, which represent premiums that are both currently due and amounts not yet due on insurance and reinsurance policies. Premiums for insurance and reinsurance policies generally become due over the period of coverage based on the policy terms. Contract periods can be several years in length with premiums received in annual or quarterly installments.
The Group monitors the credit risk associated with premiums receivable, taking into consideration the fact that in certain instances credit risk may be reduced by the Group’s right to offset loss obligations against premiums receivable, and contracts are generally cancellable for non-payment. The Group establishes an allowance for expected credit losses based upon an aged analysis of amounts due, historical write-offs, current economic conditions and expectations of future economic conditions. Further details are set out at Note 10 (Reinsurance and Retrocessional Reinsurance). Changes in the estimate of (re)insurance premiums written will also result in an adjustment to premiums receivable in the period they are determined.
Reinsurance and retrocession and Reinsurance balances recoverable
Reinsurance and retrocession
The Group seeks to reduce the risk of net losses on business written by reinsuring certain risks and exposures with other reinsurers. Ceded reinsurance contracts do not relieve the Group of its primary obligation to insureds. Ceded premiums are recognized when the coverage period incepts and are expensed over the contract period in proportion to the coverage period or, when the coverage period does not align to the risk exposure, in proportion to the underlying risk exposure. Premiums relating to the unexpired portion of reinsurance ceded are recorded as deferred reinsurance premiums.
Commissions on ceded business are deferred and amortized over the period in which the related ceded premium is recognized. The deferred balance is recorded within deferred policy acquisition costs on the Consolidated Balance Sheets and the amortization is recognized within policy acquisition expenses in the Consolidated Statements of Income.
Reinsurance balances recoverable
Amounts recoverable from reinsurers are estimated based on the terms and conditions of the reinsurance contracts in a manner consistent with the underlying liability reinsured. The Group evaluates the financial condition of its reinsurers and monitors concentration of credit risk to minimize its exposure to significant losses from individual reinsurers. The ceding of insurance does not legally discharge the Group from its primary liability for the full amount of the policies, and the Group will be required to pay the loss and bear collection risk if the reinsurer fails to meet its obligations under the reinsurance or retrocessional agreement. To further reduce credit exposure on reinsurance recoverables, the Group has received collateral, including letters of credit and trust accounts, from certain reinsurers. Collateral related to these reinsurance agreements is available, without restriction, when the Group pays losses covered by the reinsurance agreements.
An allowance is established for credit losses expected to be incurred over the life of the reinsurance recoverable, which is recorded net of this allowance. To determine the allowance for expected credit losses, the probability of default is calculated based on the reinsurer credit ratings and default factors developed by a major rating agency. The allowance is charged to net income in the period the recoverable is recorded and revised in subsequent periods to reflect changes in the Group’s estimate of expected credit losses. Further details are set out at Note 10 (Reinsurance and Retrocessional Reinsurance).
Losses and loss adjustment expenses
Losses and loss adjustment expenses
The liability for losses and loss adjustment expenses includes reserves for unpaid reported losses and for losses incurred but not reported (“IBNR”). These estimates are reported net of amounts estimated to be recoverable from salvage, subrogation and other recoveries. The reserve for losses and loss adjustment expenses is established by management based on reports from insureds, brokers, and ceding companies and the application of generally accepted actuarial techniques, including the output from catastrophe and probabilistic models, and represents the estimated ultimate cost of events or conditions that have been reported to or specifically identified by the Group as incurred.
The Group estimates ultimate losses using various actuarial methods as well as the Group’s own loss experience, historical insurance industry loss experience, estimates of pricing adequacy trends and management’s professional judgement. The estimated cost of claims includes expenses to be incurred in settling claims.
The estimation of losses and loss adjustment expense reserves is based on various complex and subjective judgments, as described in Note 9 (Reserves for Losses and Loss Adjustment Expenses). Ultimate losses and loss adjustment expenses may differ materially from the amount recorded in the financial statements. These estimates are reviewed regularly and as experience develops and new information becomes known, the reserves are adjusted as necessary. Such adjustments, if any, are recorded in losses and loss adjustment expenses in the periods in which they are determined.
Long term debt
Long term debt
Debt is initially measured at fair value less issuance costs incurred and subsequently held at amortized cost. Interest expense is recognized over the term of the notes using the effective interest method.
Leases
Leases
The Group assesses whether a contract contains a lease at the inception of the contract, determining at that point whether any leases identified are operating leases or finance leases. The Group does not currently have any finance leases.
For operating leases with a lease term in excess of 12 months, a lease liability and corresponding operating right-of-use asset is recognized. The lease liability takes into account any renewal options that are deemed to be reasonably certain and is discounted using the Group’s incremental borrowing rate, where the rate implicit in the lease is not available.
The unwinding of the discount is recognized in general and administrative expenses. The operating right-of-use asset is amortized straight line over the term of the lease and recognized in general and administrative expenses in the Consolidated Statements of Income.
Corporate and other expenses
Corporate and other expenses
Corporate and other expenses include reorganization expenses and other one-off expenses. Corporate and other expenses have been separated from general and administrative costs to separately show these costs from the administrative costs associated with running the day-to-day activities of the Group.
Income taxes
Income taxes
Income taxes have been provided for those operations that are subject to income taxes based on tax laws and rates enacted in those jurisdictions. Current and deferred taxes are charged or credited to income tax expense.
Deferred tax assets and liabilities result from temporary differences between the amounts recorded in the consolidated financial statements and the tax basis of the Group’s assets and liabilities. The effect on deferred tax assets and liabilities of a change in tax law or rates is recognized in income tax expense in the Consolidated Statements of Income in the period that includes the enactment date.
A valuation allowance is provided to reduce deferred tax assets to the amount management deem more likely than not to be realized.
The Group recognizes the benefit from a tax position taken or expected to be taken in income tax returns only if it is more likely than not that the tax position will be sustained upon examination by taxing authorities, based on the technical merits of the position. Tax positions that meet the more likely than not threshold are measured as the largest amount of tax benefit that is greater than 50 percent likely of being realized upon settlement. The Group recognizes interest and penalties related to income taxes in income tax expense.
Share compensation
Share compensation
The Group issues share-based compensation awards to employees with: (i) a service condition (ii) a service and performance condition, and (iii) a market condition. The fair value of all awards is measured at the grant date, and the awards expensed ratably over the service period. Forfeitures are recognized as they occur.
Share-based compensation awards that contain only service conditions, and awards that contain both service and performance conditions, are all valued using the market value of the FIHL common shares. For awards that contain both a service and performance condition, the Group recognizes compensation expense only for the portion of the award that is considered probable of vesting. The probability of share-based awards vesting is evaluated at each reporting period.
For awards with a market condition, they are valued using Monte Carlo simulation with inputs that include the grant date share price, estimated volatility, and risk-free interest rates.
Prior to January 3, 2023 the Group issued warrants to purchase common shares. The warrants contained a combination of service and performance conditions and were valued at the grant date using the Black-Scholes option-pricing model. Share compensation expense for warrants considered probable of vesting was expensed over the vesting period on a graded vesting basis.
Foreign exchange
Foreign exchange
The functional currency of the Group and its subsidiaries is U.S. dollar. Transactions in foreign currencies are translated in U.S. dollars at the exchange rate in effect on the transaction date. Monetary assets and liabilities in foreign currencies are re-measured at the exchange rates in effect at the reporting date. Foreign exchange gains and losses are included in the Consolidated Statements of Income. Non-monetary assets and liabilities are remeasured to the functional currency at historic exchange rates.
Prior to the Separation Transactions, certain subsidiaries had a non-U.S. dollar functional currency. In translating the financial results of those entities whose functional currency was other than the U.S. Dollar reporting currency, assets and liabilities were converted into U.S. Dollars using the rates of exchange in effect at the reporting date, and revenues and expenses were converted using the average foreign exchange rates for the period. The effect of translation adjustments was reported in the Consolidated Balance Sheets and Consolidated Statements of Changes in Shareholders’ Equity as a foreign currency translation adjustment, a separate component of Accumulated Other Comprehensive Income.
Comprehensive income
Comprehensive income
Comprehensive income represents all changes in equity that result from recognized transactions and other economic events during the period. Other comprehensive income refers to revenues, expenses, gains and losses that under U.S. GAAP are included in comprehensive income but excluded from net income, such as unrealized gains or losses on available-for-sale investments and foreign currency translation adjustments.
Reclassification
Reclassification
Certain amounts in the prior period financial statements have been reclassified to conform to the presentation of the current period financial statements. These reclassifications had no impact on the previously reported net income or shareholders’ equity.
Recent accounting pronouncements
Recent accounting pronouncements
Accounting standards recently adopted
The Group adopted ASU 2023-09 “Improvements to Income Tax Disclosures” in the year ended December 31, 2025. This guidance improves the transparency of income tax disclosures by requiring consistent categories and disaggregation of information in the effective income tax rate reconciliation as well as information on income taxes paid. The Group has applied ASU 2023-09 retrospectively by providing the required disclosures for all periods presented. The ASU impacted our disclosures in Note 18 (Income Taxes), but had no impact on our results of operations, cash flows, and financial condition.
Accounting standards not yet adopted
In November 2024, the FASB issued ASU 2024-03 "Disaggregation of Income Statement Expenses," which requires entities to disaggregate certain income statement expenses into more detailed components to enhance transparency and usefulness of financial information. This ASU mandates the separate disclosure of specific expense categories, such as employee compensation, depreciation, and amortization in the footnotes. The effective date for ASU 2024-03 is for fiscal years beginning after December 15, 2026, with early adoption permitted. The Group is currently evaluating the impact of adoption on the disclosures within its consolidated financial statements.
v3.25.4
Segments (Tables)
12 Months Ended
Dec. 31, 2025
Segment Reporting [Abstract]  
Schedule of Reconciliation of Operating Profit (Loss) from Segments to Consolidated
The following tables summarize the Group's segment disclosures:
2025
InsuranceReinsuranceOtherTotal
Gross premiums written$3,756.3 $961.3 $— $4,717.6 
Net premiums written2,531.9 476.7 — 3,008.6 
Net premiums earned1,899.4 394.3 — 2,293.7 
Losses and loss adjustment expenses(996.5)(93.3)— (1,089.8)
Policy acquisition expenses(557.6)(103.7)(328.8)(990.1)
General and administrative expenses— — (96.6)(96.6)
Underwriting income345.3 197.3 117.2 
Net investment income184.0 
Net realized and unrealized investment gains22.8 
Corporate and other expenses(1.2)
Net foreign exchange gains0.5 
Financing costs(47.7)
Income before income taxes275.6 
Income tax expense(50.1)
Net income$225.5 
Losses and loss adjustment expenses incurred - current year(918.9)(173.9)$(1,092.8)
Losses and loss adjustment expenses incurred - prior accident years(77.6)80.6 3.0 
Losses and loss adjustment expenses incurred - total$(996.5)$(93.3)$(1,089.8)
Underwriting Ratios(1)
Loss ratio - current year48.4%44.1%47.6%
Loss ratio - prior accident years4.1%(20.4%)(0.1%)
Loss ratio - total52.5%23.7%47.5%
Policy acquisition expense ratio29.4%26.3%28.8%
Underwriting ratio81.9%50.0%76.3%
The Fidelis Partnership commissions ratio14.3%
General and administrative expense ratio4.2%
Combined ratio94.8%
__________________
(1)Underwriting ratios are calculated by dividing the related expense by net premiums earned.
2024
InsuranceReinsuranceOtherTotal
Gross premiums written$3,538.5 $864.6 $— $4,403.1 
Net premiums written2,050.4 344.2 — 2,394.6 
Net premiums earned1,902.4 355.7 — 2,258.1 
Losses and loss adjustment expenses(1,101.5)(54.3)— (1,155.8)
Policy acquisition expenses(604.6)(84.0)(311.1)(999.7)
General and administrative expenses— — (94.3)(94.3)
Underwriting income196.3 217.4 8.3 
Net investment income190.5 
Net realized and unrealized investment losses(28.6)
Corporate and other expenses(1.6)
Net foreign exchange gains1.6 
Financing costs(33.8)
Income before income taxes136.4 
Income tax expense(23.1)
Net income$113.3 
Losses and loss adjustment expenses incurred - current year(916.9)(114.3)$(1,031.2)
Losses and loss adjustment expenses incurred - prior accident years(184.6)60.0 (124.6)
Losses and loss adjustment expenses incurred - total$(1,101.5)$(54.3)$(1,155.8)
Underwriting Ratios(1)
Loss ratio - current year48.2%32.2%45.7%
Loss ratio - prior accident years9.7%(16.9%)5.5%
Loss ratio - total57.9%15.3%51.2%
Policy acquisition expense ratio31.8%23.6%30.5%
Underwriting ratio89.7%38.9%81.7%
The Fidelis Partnership commissions ratio13.8%
General and administrative expense ratio4.2%
Combined ratio99.7%
_________________
(1)Underwriting ratios are calculated by dividing the related expense by net premiums earned.
2023
InsuranceReinsuranceOtherTotal
Gross premiums written$2,960.4 $618.6 $— $3,579.0 
Net premiums written1,880.5 256.1 — 2,136.6 
Net premiums earned1,577.0 255.6 — 1,832.6 
Losses and loss adjustment expenses(675.1)(23.7)— (698.8)
Policy acquisition expenses(429.1)(69.4)(225.3)(723.8)
General and administrative expenses— — (82.7)(82.7)
Underwriting income472.8 162.5 327.3 
Net investment income119.5 
Net realized and unrealized investment gains4.9 
Other income0.1 
Net gain on distribution of The Fidelis Partnership1,639.1 
Corporate and other expenses(4.1)
Net foreign exchange losses(4.1)
Financing costs(35.5)
Income before income taxes2,047.2 
Income tax benefit85.3 
Net income$2,132.5 
Losses and loss adjustment expenses incurred - current year(669.5)(92.2)$(761.7)
Losses and loss adjustment expenses incurred - prior accident years(5.6)68.5 62.9 
Losses and loss adjustment expenses incurred - total$(675.1)$(23.7)$(698.8)
Underwriting Ratios(1)
Loss ratio - current year42.4%36.1%41.5%
Loss ratio - prior accident years0.4%(26.8%)(3.4%)
Loss ratio - total42.8%9.3%38.1%
Policy acquisition expense ratio27.2%27.2%27.2%
Underwriting ratio70.0%36.5%65.3%
The Fidelis Partnership commissions ratio12.3%
General and administrative expense ratio4.5%
Combined ratio82.1%
__________________
(1)Underwriting ratios are calculated by dividing the related expense by net premiums earned.
Schedule of Segment Reporting Information, by Segment
The following table summarizes gross premiums written by line of business within each underwriting segment.
202520242023
Insurance
Property$1,314.9 $1,279.6 $988.1 
Marine722.6 785.7 673.4 
Asset Backed Finance & Portfolio Credit531.0 399.2 293.3 
Energy208.8 192.5 172.1 
Cyber195.6 82.9 69.9 
Aviation & Aerospace172.2 339.5 371.8 
Political Risk, Violence & Terror156.6 204.2 221.7 
Other Insurance454.6 254.9 170.1 
Total Insurance3,756.3 3,538.5 2,960.4 
Reinsurance
Property Reinsurance931.6 832.9 596.8 
Retro & Whole Account29.7 31.7 21.8 
Total Reinsurance$961.3 $864.6 $618.6 
The following table presents gross premiums written by the geographical location of the Group’s subsidiaries:
202520242023
United Kingdom$2,423.7 $2,347.2 $1,977.0 
Bermuda1,854.8 1,448.4 1,047.5 
Republic of Ireland439.1 607.5 554.5 
Total$4,717.6 $4,403.1 $3,579.0 
v3.25.4
Investments (Tables)
12 Months Ended
Dec. 31, 2025
Investments, Debt and Equity Securities [Abstract]  
Schedule of Debt Securities, Available-for-Sale
The following table summarizes the fair value of fixed maturity investments:
December 31, 2025
Amortized CostUnrealized
gains
Unrealized
losses
Fair
value
U.S. Treasuries$477.8 $6.6 $(0.2)$484.2 
Agencies6.9 — — 6.9 
Non-U.S. government46.6 0.6 — 47.2 
Corporate bonds1,616.8 35.7 (0.3)1,652.2 
Residential mortgage-backed244.3 5.6 — 249.9 
Commercial mortgage-backed1.0 — — 1.0 
Other asset-backed securities197.2 1.9 (0.1)199.0 
Total fixed maturity securities$2,590.6 $50.4 $(0.6)$2,640.4 
December 31, 2024
Amortized CostUnrealized
gains
Unrealized
losses
Fair
value
U.S. Treasuries$747.6 $2.1 $(3.1)$746.6 
Agencies11.5 — — 11.5 
Non-U.S. government46.6 0.1 (0.3)46.4 
Corporate bonds1,906.3 10.9 (4.0)1,913.2 
Residential mortgage-backed279.5 0.8 (1.2)279.1 
Commercial mortgage-backed— 0.4 — 0.4 
Other asset-backed securities412.3 2.3 (0.2)414.4 
Total fixed maturity securities$3,403.8 $16.6 $(8.8)$3,411.6 
The composition of the fair values of fixed maturity securities by credit rating is as follows:
December 31, 2025December 31, 2024
Fair Value%Fair Value%
AAA$216.1 9%$399.4 12%
AA891.2 34%1,245.6 37%
A1,118.8 42%1,270.9 37%
BBB382.8 14%453.1 13%
Below BBB31.5 1%42.6 1%
Total fixed maturity securities$2,640.4 100%$3,411.6 100%
The contractual maturities for fixed maturity securities are listed in the following table:
December 31, 2025December 31, 2024
Amortized CostFair ValueAmortized CostFair Value
Due in one year or less$233.0 $234.2 $147.9 $147.6 
Due after one year through five years1,503.5 1,532.4 2,141.2 2,149.8 
Due after five years through ten years520.3 534.3 767.7 766.7 
Due after ten years333.8 339.5 347.0 347.5 
Total fixed maturity securities$2,590.6 $2,640.4 $3,403.8 $3,411.6 
The Group’s short-term investments consist of U.S. Treasuries, corporate bonds and other asset-backed securities with maturities of 90 days or greater but less than one year at the time of purchase:
December 31, 2025
Amortized CostUnrealized
gains
Unrealized
losses
Fair
value
U.S. Treasuries$109.9 $— $— $109.9 
Corporate bonds1.0 — — 1.0 
Other asset-backed securities0.4 — — 0.4 
Total short-term investments$111.3 $ $ $111.3 
December 31, 2024
Amortized CostUnrealized
gains
Unrealized
losses
Fair
value
U.S. Treasuries$220.5 $0.2 $— $220.7 
Corporate bonds1.1 — — 1.1 
Other asset-backed securities0.3 — — 0.3 
Total short-term investments$221.9 $0.2 $ $222.1 
The composition of the fair values of short-term investments by credit rating is as follows:
December 31, 2025December 31, 2024
Fair Value%Fair Value%
AAA$0.4 %$0.3 %
AA109.9 99%220.7 100%
A0.7 1%— %
BBB0.2 %0.2 %
Below BBB0.1 %0.9 %
Total short-term investments$111.3 100%$222.1 100%
Schedule of Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value
The following table summarizes, by type of security, the aggregate fair value and gross unrealized loss by length of time the security has been in an unrealized loss position for the Group’s available-for-sale portfolio:
December 31, 2025
0 - 12 months> 12 months
Fair
value
Gross unrealized lossesGross unrealized lossesNumber of securities
U.S. Treasuries$50.1 $(0.1)$(0.1)49 
Non-U.S. government5.3 — — 
Corporate bonds53.3 (0.3)— 132 
Residential mortgage-backed2.2 — — 
Other asset-backed securities25.3 (0.1)— 30 
Total$136.2 $(0.5)$(0.1)215 
December 31, 2024
0 - 12 months> 12 months
Fair
value
Gross unrealized lossesGross unrealized lossesNumber of securities
U.S. Treasuries$307.6 $(2.8)$(0.3)48 
Agencies4.0 — — 
Non-U.S. government23.7 (0.1)(0.2)11 
Corporate bonds543.6 (3.4)(0.6)310 
Residential mortgage-backed91.9 (1.1)(0.1)35 
Other asset-backed securities64.7 (0.2)— 25 
Total$1,035.5 $(7.6)$(1.2)431 
Schedule of Debt Securities, Available-for-Sale, Allowance for Credit Loss
The following table provides a roll forward of the allowance for expected credit losses of the Group’s securities classified as available-for-sale:
202520242023
Balance at beginning of year$5.9 $1.3 $1.1 
Expected credit losses on securities where credit losses were not previously recognized1.8 7.3 4.1 
Reductions for expected credit losses on securities where credit losses were previously recognized(6.2)(2.4)(3.5)
Securities sold/redeemed/matured(0.9)(0.3)(0.4)
Balance at end of year$0.6 $5.9 $1.3 
Schedule of Other Investments Not Readily Marketable
The following table provides a summary of the Group’s other investments by investment strategy:
December 31, 2025December 31, 2024
Fair Value%Fair Value%
Fixed income funds$243.0 50%$— %
Hedge funds
Credit25.0 5%22.3 12%
Global macro41.6 9%44.8 22%
Long/short67.4 14%44.9 22%
Multi-strategy and event-driven96.8 20%89.0 44%
Total hedge funds230.8 48%201.0 100%
Private credit funds11.92%%
Total other investments$485.7 100%$201.0 100%
Schedule of Investment Income
The components of net investment return are as follows:
202520242023
Net interest and dividend income$192.6 $195.8 $123.5 
Investment expenses(8.6)(5.3)(4.0)
Net investment income184.0 190.5 119.5 
Net realized and unrealized gains on other investments12.9 0.7 5.8 
Net realized gains/(losses) on fixed maturity securities, available-for-sale4.6 (24.7)(0.7)
Change in provision for expected credit losses 5.3 (4.6)(0.2)
Net realized and unrealized investment gains/(losses)22.8 (28.6)4.9 
Total realized and unrealized investments gains/(losses) and net investment income$206.8 $161.9 $124.4 
v3.25.4
Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2025
Fair Value Disclosures [Abstract]  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis
The following tables present the financial instruments measured at fair value on a basis at December 31, 2025 and 2024:
December 31, 2025
AssetsLevel 1Level 2Level 3Total
Fixed maturity securities
U.S. Treasuries$484.2 $— $— $484.2 
Agencies— 6.9 — 6.9 
Non-U.S. government— 47.2 — 47.2 
Corporate bonds— 1,652.2 — 1,652.2 
Residential mortgage-backed— 249.9 — 249.9 
Commercial mortgage-backed— 1.0 — 1.0 
Other asset-backed securities— 199.0 — 199.0 
Total fixed maturity securities484.2 2,156.2  2,640.4 
Short-term investments
Corporate bonds— 1.0 — 1.0 
U.S. Treasuries109.9 — — 109.9 
Other asset-backed securities— 0.4 — 0.4 
Total short-term investments109.9 1.4  111.3 
Other assets
Investments pending settlement4.8 — — 4.8 
Derivative assets— 2.4 — 2.4 
Total other assets4.8 2.4  7.2 
Total assets measured at fair value$598.9 $2,160.0 $ $2,758.9 
Liabilities
Other liabilities
Derivative liabilities$— $(1.7)$— $(1.7)
Investments pending settlement(6.6)— — (6.6)
Total other liabilities(6.6)(1.7) (8.3)
Total liabilities measured at fair value$(6.6)$(1.7)$ $(8.3)
December 31, 2024
AssetsLevel 1Level 2Level 3Total
Fixed maturity securities
U.S. Treasuries$746.6 $— $— $746.6 
Agencies— 11.5 — 11.5 
Non-U.S. government— 46.4 — 46.4 
Corporate bonds— 1,913.2 — 1,913.2 
Residential mortgage-backed— 279.1 — 279.1 
Commercial mortgage-backed— 0.4 — 0.4 
Other asset-backed securities— 414.4 — 414.4 
Total fixed maturity securities746.6 2,665.0  3,411.6 
Short-term investments
Corporate bonds— 1.1 — 1.1 
U.S. Treasuries220.7 — — 220.7 
Other asset-backed securities— 0.3 — 0.3 
Total short-term investments220.7 1.4  222.1 
Other assets
Investments pending settlement0.5 — — 0.5 
Total other assets0.5   0.5 
Total assets measured at fair value$967.8 $2,666.4 $ $3,634.2 
Liabilities
Other liabilities
Derivative liabilities$— $(0.5)$— $(0.5)
Investments pending settlement(21.1)— — (21.1)
Total other liabilities(21.1)(0.5) (21.6)
Total liabilities measured at fair value$(21.1)$(0.5)$ $(21.6)
Schedule of Fair Value by Balance Sheet Grouping The fair values of the below financial instruments are based on observable inputs and are considered Level 2 measurements.
December 31, 2025December 31, 2024
Fair ValueCarrying ValueFair ValueCarrying Value
7.750% Subordinated notes due 2055
$431.0 $393.5 $— $— 
4.875% Senior notes due 2030
327.7 326.4 319.7 325.6 
6.625% Fixed Rate Reset Junior Subordinated notes due 2041
124.4 123.3 123.2 123.3 
Preference securities
$— $— $57.2 $58.4 
v3.25.4
Total Cash, Cash Equivalents, Restricted Cash and Restricted Investments (Tables)
12 Months Ended
Dec. 31, 2025
Cash and Cash Equivalents [Abstract]  
Schedule of Cash and Cash Equivalents The following table provides a summary of cash and cash equivalents, restricted cash and restricted investments at December 31, 2025 and 2024:
December 31, 2025December 31, 2024
Cash and cash equivalents$873.0 $743.0 
Restricted cash securing letter of credit facilities21.5 51.6 
Restricted cash securing insurance and reinsurance contracts353.1 152.0 
Total cash, cash equivalents and restricted cash1,247.6 946.6 
Restricted investments securing reinsurance contracts and letter of credit facilities850.7 1,328.7 
Total cash, cash equivalents, restricted cash and restricted investments$2,098.3 $2,275.3 
Schedule of Restrictions on Cash and Cash Equivalents The following table provides a summary of cash and cash equivalents, restricted cash and restricted investments at December 31, 2025 and 2024:
December 31, 2025December 31, 2024
Cash and cash equivalents$873.0 $743.0 
Restricted cash securing letter of credit facilities21.5 51.6 
Restricted cash securing insurance and reinsurance contracts353.1 152.0 
Total cash, cash equivalents and restricted cash1,247.6 946.6 
Restricted investments securing reinsurance contracts and letter of credit facilities850.7 1,328.7 
Total cash, cash equivalents, restricted cash and restricted investments$2,098.3 $2,275.3 
v3.25.4
Derivative Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2025
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule of Notional Amount of Derivative Instruments
The following tables identify the listing currency, fair value and notional amounts of derivative instruments included in the Consolidated Balance Sheets, categorized by primary underlying risk:
December 31, 2025December 31, 2024
Derivative assets at fair valueDerivative liabilities at fair value
Notional amounts(1)
Derivative assets at fair valueDerivative liabilities at fair value
Notional amounts(1)
Credit default swaps$2.4 $— $2.2 $— $— $— 
Forwards(2)
— (1.7)133.3 — (0.5)31.0 
Total $2.4 $(1.7)$ $(0.5)
__________________
(1)The absolute notional exposure represents the Group’s derivative activity, which is representative of the volume of derivatives held during the year.
(2)Contracts used to primarily manage foreign currency risks in underwriting.
Schedule of Net Change in Net Unrealized Gains (Losses) to Derivative Instruments
The following table presents the Group’s net realized gains/(losses) and change in net unrealized gains/(losses) relating to derivative trading activities for the years ended December 31, 2025, 2024 and 2023. Net realized gains/(losses) and net unrealized gains/(losses) related to derivatives are included in net realized and unrealized investment gains/(losses) and net foreign exchange gains and losses in the Consolidated Statements of Income.
202520242023
Net realized gains/(losses)Change in net unrealized
gains/(losses)
Net realized gains/(losses)Change in net unrealized gains/(losses)Net realized gains/(losses)Change in net unrealized gains/(losses)
Credit default swaps$— $— $— $— $— $— 
Forwards(1)
$(16.4)$(1.3)$(3.6)$0.6 $3.8 $(7.3)
__________________
(1)Contracts used to primarily manage foreign currency risks in underwriting.
v3.25.4
Deferred Policy Acquisition Costs (Tables)
12 Months Ended
Dec. 31, 2025
Insurance [Abstract]  
Schedule of Deferred Policy Acquisition Costs
The following table represents a reconciliation of beginning and ending deferred policy acquisition costs at December 31, 2025 and 2024:
December 31, 2025December 31, 2024
Balance at the beginning of the year$877.9 $786.6 
    Acquisition costs deferred1,197.2 1,091.0 
    Amortization of deferred policy acquisition costs(990.1)(999.7)
Balance at the end of the year$1,085.0 $877.9 
v3.25.4
Reserves for Losses and Loss Adjustment Expenses (Tables)
12 Months Ended
Dec. 31, 2025
Insurance [Abstract]  
Schedule of Liability for Unpaid Claims and Claims Adjustment Expense
The following table presents a reconciliation of reserves for losses and loss adjustment expenses for the years ended December 31, 2025, 2024 and 2023:
202520242023
Reserves for losses and loss adjustment expenses, beginning of year$3,134.3 $2,448.9 $2,045.2 
Reinsurance recoverable on reserves for losses and loss adjustment expenses(1,255.6)(1,108.6)(976.1)
Net reserves for losses and loss adjustment expenses, beginning of year1,878.7 1,340.3 1,069.1 
Net losses and loss adjustment expenses incurred in respect of losses occurring in:
Current year1,092.8 1,031.2 761.7 
Prior years(3.0)124.6 (62.9)
Total incurred1,089.8 1,155.8 698.8 
Net losses and loss adjustment expenses paid in respect of losses occurring in:
Current year(268.5)(188.4)(110.1)
Prior years(1,314.2)(406.8)(329.4)
Total paid(1,582.7)(595.2)(439.5)
Foreign exchange25.7 (22.2)11.9 
Net reserves for losses and loss adjustment expenses, end of year1,411.5 1,878.7 1,340.3 
Reinsurance recoverable on reserves for losses and loss adjustment expenses1,195.6 1,255.6 1,108.6 
Reserves for losses and loss adjustment expenses, end of year
$2,607.1 $3,134.3 $2,448.9 
The table below reconciles the loss development information to the Group’s reserves for losses and loss adjustment expenses at December 31, 2025 and 2024:
20252024
Reserves for losses and loss adjustment expenses, net of reinsurance
Insurance$1,147.2 $1,611.8 
Reinsurance238.6 237.6 
Total reserves for losses and loss adjustment expenses, net of reinsurance1,385.8 1,849.4 
Reinsurance recoverable on reserves for losses and loss adjustment expenses
Insurance939.2 879.5 
Reinsurance256.4 376.1 
Total reinsurance recoverable on reserves for losses and loss adjustment expenses1,195.6 1,255.6 
Unallocated loss adjustment expenses25.7 29.3 
Total gross reserves for losses and loss adjustment expenses$2,607.1 $3,134.3 
Schedule of Short-Duration Insurance Contracts, Claims Development
Insurance
Incurred losses and loss adjustment expenses – net of reinsurance
Accident Year2016201720182019202020212022202320242025Total of IBNR
plus expected development on reported losses
<-------------------------------------------------------------------- Unaudited ------------------------------------------------------------->
2016$19.2 $11.2 $9.4 $8.4 $7.0 $4.3 $3.8 $4.0 $3.7 $3.7 $0.1 
201724.516.912.711.611.29.99.49.610.31.0
201845.037.731.630.028.120.918.720.2(9.7)
201968.850.357.761.773.168.068.41.6
2020161.8121.9130.8127.5130.1122.3(61.1)
2021310.3260.9279.6262.0266.2(2.0)
2022678.4660.51,027.81,358.1(69.6)
2023674.6504.5505.032.1
2024907.5655.3139.9
2025921.8547.8
Total$3,931.3 $580.1 
Cumulative paid losses and loss adjustment expenses - net of reinsurance
Accident Year2016201720182019202020212022202320242025
<-------------------------------------------------------------------- Unaudited ------------------------------------------------------------->
2016$— $2.9 $3.8 $4.0 $4.1 $3.7 $3.6 $3.6 $3.6 $3.6 
20172.44.26.17.97.67.47.57.8
20180.55.813.021.520.924.626.627.6
20197.123.224.336.649.259.060.2
202026.6212.3216.2168.0164.7173.9
202144.6123.5188.1213.7241.0
202261.9218.8412.71,376.8
202389.5260.2380.7
2024158.5306.3
2025209.5
Total2,787.4
Reserve FX3.3
ULAE20.8
Liabilities for losses and loss adjustment expenses, net of reinsurance$1,168.0 
Reinsurance
Incurred losses and loss adjustment expenses – net of reinsurance
Accident Year2016201720182019202020212022202320242025Total of IBNR
plus expected development on reported losses
<-------------------------------------------------------------------- Unaudited ------------------------------------------------------------->
2016$74.1 $61.3 $54.0 $48.7 $45.0 $41.1 $40.9 $33.0 $33.1 $33.2 $0.1 
201787.158.751.655.653.055.450.847.445.43.9
201881.890.892.691.284.368.664.963.6(1.0)
201946.447.447.148.539.938.137.31.6
2020193.0226.7245.3241.6245.8237.98.8
2021369.7401.5399.0383.1366.415.1
2022176.4150.4147.8149.624.1
202389.752.052.03.9
2024121.767.913.9
2025175.380.6
Total$1,228.6 $151.0 
Cumulative paid losses and loss adjustment expenses - net of reinsurance
Accident Year2016201720182019202020212022202320242025
<-------------------------------------------------------------------- Unaudited ------------------------------------------------------------->
2016$2.1 $12.0 $20.2 $21.6 $21.8 $22.5 $22.7 $22.9 $33.0 $33.0 
201726.545.047.052.352.734.838.038.539.6
201823.818.942.755.268.363.963.063.4
20193.035.837.436.334.834.535.3
202056.5140.2172.8195.1200.4223.6
2021164.7305.9370.7353.1349.3
202221.979.994.098.6
202322.636.541.5
202432.143.6
202559.0
986.9
Reserve FX(3.1)
ULAE4.9
Liabilities for losses and loss adjustment expenses, net of reinsurance$243.5 
Schedule of Short-Duration Insurance Contracts, Schedule of Historical Claims Duration
The following table presents the Group’s historical average annual percentage payout of losses and loss adjustment expenses incurred, net of reinsurance by age at December 31, 2025:
Year 1Year 2Year 3Year 4
Year 5
Year 6Year 7
<------------------------------------------------------------- Unaudited -------------------------------------------------------------->
Insurance15 %25 %17 %52 %%10 %%
Reinsurance34 %35 %15 %%%— %%
v3.25.4
Reinsurance and Retrocessional Reinsurance (Tables)
12 Months Ended
Dec. 31, 2025
Insurance [Abstract]  
Schedule of Effects of Reinsurance
The following tables provide a breakdown of the Group’s written and earned premiums and losses and loss adjustment expenses from direct business, reinsurance assumed, and reinsurance ceded for the years ended December 31, 2025, 2024 and 2023:
202520242023
Written premiums
Direct$2,937.6 $2,928.1 $2,489.2 
Assumed1,780.0 1,475.0 1,089.8 
Gross premiums written 4,717.6 4,403.1 3,579.0 
Ceded(1,709.0)(2,008.5)(1,442.4)
Net premiums written$3,008.6 $2,394.6 $2,136.6 
202520242023
Premiums earned
Direct$2,528.4 $2,633.2 $1,992.8 
Assumed1,455.1 1,272.5 1,044.5 
Gross premiums earned3,983.5 3,905.7 3,037.3 
Ceded(1,689.8)(1,647.6)(1,204.7)
Net premiums earned$2,293.7 $2,258.1 $1,832.6 
202520242023
Losses and loss adjustment expense
Direct$1,489.2 $1,465.6 $870.2 
Assumed767.0 320.9 343.9 
Losses and loss adjustment expense incurred2,256.2 1,786.5 1,214.1 
Ceded(1,166.4)(630.7)(515.3)
Losses and loss adjustment expense incurred, net$1,089.8 $1,155.8 $698.8 
Schedule of Effects of Reinsurance on Losses and Loss Adjustment Expenses
The following tables provide a breakdown of the Group’s written and earned premiums and losses and loss adjustment expenses from direct business, reinsurance assumed, and reinsurance ceded for the years ended December 31, 2025, 2024 and 2023:
202520242023
Written premiums
Direct$2,937.6 $2,928.1 $2,489.2 
Assumed1,780.0 1,475.0 1,089.8 
Gross premiums written 4,717.6 4,403.1 3,579.0 
Ceded(1,709.0)(2,008.5)(1,442.4)
Net premiums written$3,008.6 $2,394.6 $2,136.6 
202520242023
Premiums earned
Direct$2,528.4 $2,633.2 $1,992.8 
Assumed1,455.1 1,272.5 1,044.5 
Gross premiums earned3,983.5 3,905.7 3,037.3 
Ceded(1,689.8)(1,647.6)(1,204.7)
Net premiums earned$2,293.7 $2,258.1 $1,832.6 
202520242023
Losses and loss adjustment expense
Direct$1,489.2 $1,465.6 $870.2 
Assumed767.0 320.9 343.9 
Losses and loss adjustment expense incurred2,256.2 1,786.5 1,214.1 
Ceded(1,166.4)(630.7)(515.3)
Losses and loss adjustment expense incurred, net$1,089.8 $1,155.8 $698.8 
Schedule of Premium Receivable, Allowance for Credit Loss
The following table provides a roll forward of the allowance for expected credit losses of the Group’s reinsurance balances recoverable on paid losses and reserves for losses and loss adjustment expenses:
December 31, 2025December 31, 2024
Balance at the beginning of the year$1.0 $1.3 
Change for provision of expected credit losses0.2 (0.3)
Balance at the end of the year$1.2 $1.0 
The Group is also exposed to credit risk with respect to its premiums and other receivables. The following table provides a roll forward of the allowance for expected credit losses of the Group’s premiums and other receivables:
December 31, 2025December 31, 2024
Balance at the beginning of the year$11.8 $17.3 
Change for provision of expected credit losses4.0 (5.5)
Balance at the end of the year$15.8 $11.8 
v3.25.4
Long Term Debt and Preference Securities (Tables)
12 Months Ended
Dec. 31, 2025
Debt Disclosure [Abstract]  
Schedule of Debt
The following table sets forth the principal amount of the debt issued as well as the unamortized discount and debt issuance costs at December 31, 2025 and 2024:
December 31, 2025December 31, 2024
PrincipalUnamortized discount and debt issuance costsPrincipalUnamortized discount and debt issuance costs
7.750% Fixed Rate Reset Subordinated notes due 2055
$400.0 $(6.5)$— $— 
4.875% Senior notes due 2030
330.0 (3.6)330.0 (4.4)
6.625% Fixed Rate Reset Junior Subordinated notes due 2041
125.0 (1.7)125.0 (1.7)
Total$855.0 $(11.8)$455.0 $(6.1)
Schedule of Stock by Class
December 31, 2025December 31, 2024
Preference securities, par value $0.01 per share
Authorized— 1,000,000 
Issued and outstanding:
9% cumulative preference shares
— 5,835 
The following sets out the number and par value of shares authorized, issued and outstanding:
December 31, 2025December 31, 2024
Common shares, par value $0.01 per share
Authorized600,000,000 600,000,000 
Issued and outstanding
Common shares 96,651,534 111,730,209 
v3.25.4
Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2025
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Line of Credit Facilities
At December 31, 2025 and 2024, the Group had the following letter of credit facilities:
December 31, 2025December 31, 2024
BankCommitmentIn UseDate of ExpiryCommitmentIn UseDate of Expiry
Lloyds Bank plc(1)(2)
Unsecured$20.0 $8.8 September 21, 2028$25.0 $19.9 September 21, 2025
Secured115.0 52.0 September 21, 2028100.0 58.1 September 21, 2025
Total Lloyds Bank Plc135.0 60.8 125.0 78.0 
Citibank N.A. London branch(1)(2)
Secured70.0 28.4 December 31, 202670.0 42.9 December 31, 2025
Total Citibank N.A. London branch70.0 28.4 70.0 42.9 
Barclays Bank plc(1)(2)
Unsecured20.0 11.8 September 13, 202860.0 52.2 September 13, 2025
Secured115.0 32.0 September 13, 202880.0 31.0 September 13, 2025
Total Barclays Bank plc135.0 43.8 140.0 83.2 
Bank of Montreal(1)(2)
Unsecured40.0 8.3 September 18, 202640.0 30.7 September 18, 2025
Secured100.0 37.7 September 18, 2026100.0 41.2 September 18, 2025
Total Bank of Montreal140.0 46.0 140.0 71.9 
Total letters of credit facilities$480.0 $179.0 $475.0 $276.0 
__________________
(1)Letters of credit can be issued under the secured letter of credit facilities for the purposes of supporting insurance and reinsurance obligations.
(2)The Facility agreements allow for additional capacity in the form of accordions and uncommitted amounts. The maximum additional capacity from the lenders as of December 31, 2025 was: Lloyds Bank plc $65.0 million; Citibank N.A. London Branch $200.0 million; Barclays Bank plc $65.0 million; and Bank of Montreal $60.0 million.
The following table shows the value of the collateral underlying the secured letter of credit facilities:
BankDecember 31, 2025December 31, 2024
Lloyds Bank plc$57.2 $68.5 
Citibank N.A. London branch32.7 46.9 
Barclays Bank plc35.3 54.5 
Bank of Montreal51.9 46.2 
Total$177.1 $216.1 
Schedule of Ceded Credit Risk
The following table sets forth the Group’s premiums written by broker that individually contributed more than 10% of total gross premiums written for the years ended December 31, 2025, 2024 and 2023:
202520242023
Aon plc19 %13 %13 %
Marsh & McLennan Companies Inc16 %20 %18 %
Schedule of Assets And Liabilities, Lessee
The following table presents the Group’s operating lease right-of-use assets and lease liabilities:
December 31, 2025December 31, 2024
Operating lease right-of-use assets (1)
$9.8 $11.1 
Operating lease liabilities (2)
$12.4 $13.0 
Weighted-average remaining lease term (years)6.47.2
Weight-average discount rate10.8 %10.8 %
__________________
(1)Operating lease right-of-use assets are included in other assets
(2)Operating lease liabilities are included in other liabilities
Schedule of Lessee, Operating Lease, Liability, to be Paid, Maturity
Future minimum lease commitments at December 31, 2025 under these leases are expected to be as follows:
Future Payments
2026$3.0 
20272.9
20282.6
20292.3
20302.3
2031 and thereafter3.7
Total future annual minimum lease payments16.8
Less: present value discount(4.4)
Total lease liability at December 31, 2025
$12.4 
v3.25.4
Related Party Transactions (Tables)
12 Months Ended
Dec. 31, 2025
Related Party Transactions [Abstract]  
Schedule of Other Nonoperating Income (Expense)
The following table summarizes The Fidelis Partnership commissions earned, which are included in policy acquisition expenses in the Consolidated Statements of Income:
202520242023
Ceding commission expense$325.0 $311.1 $166.2 
Profit commission expense3.8 — 59.1 
Total commissions$328.8 $311.1 $225.3 
v3.25.4
Statutory Requirements and Dividend Restrictions (Tables)
12 Months Ended
Dec. 31, 2025
Insurance [Abstract]  
Schedule of Statutory Accounting Practices Disclosure
The statutory capital and surplus and minimum required statutory capital and surplus for the Group’s regulatory jurisdictions is as follows:
December 31, 2025December 31, 2024
Bermuda(1)
United
Kingdom(2)
Republic of Ireland(2)
Bermuda(1)
United
Kingdom(2)
Republic of Ireland(2)
Required statutory capital and surplus$1,095.0 $535.0 $95.0 $910.0 $540.0 $100.0 
Actual statutory capital and surplus$2,220.0 $1,055.0 $165.0 $1,830.0 $950.0 $175.0 
__________________
(1)Required statutory capital and surplus represents the Enhanced Capital Requirement (“ECR”).
(2)Required statutory capital and surplus represents the Solvency UK/Solvency II Solvency Capital Requirement (“SCR”).
Statutory net income/(loss) of the Group’s regulated insurance operations are detailed below:
202520242023
Bermuda$158.3 $67.3 $345.2 
United Kingdom$162.9 115.0 68.1 
Republic of Ireland$(8.4)$(3.8)$19.3 
v3.25.4
Earnings Per Share (Tables)
12 Months Ended
Dec. 31, 2025
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method
202520242023
Earnings per common share
Net income available to common shareholders$225.5 $113.3 $2,132.5 
Weighted average common shares outstanding106,158,800 115,218,380 114,313,971 
Earnings per common share$2.12 $0.98 $18.65 
Earnings per diluted common share
Net income available to common shareholders$225.5 $113.3 $2,132.5 
Weighted average common shares outstanding106,158,800 115,218,380 114,313,971 
Share-based compensation plans582,248 408,801 10,712 
Weighted average diluted common shares outstanding106,741,048 115,627,181 114,324,683 
Earnings per diluted common share$2.11 $0.98 $18.65 
v3.25.4
Share Capital Authorized and Issued (Tables)
12 Months Ended
Dec. 31, 2025
Equity [Abstract]  
Schedule of Stock by Class
December 31, 2025December 31, 2024
Preference securities, par value $0.01 per share
Authorized— 1,000,000 
Issued and outstanding:
9% cumulative preference shares
— 5,835 
The following sets out the number and par value of shares authorized, issued and outstanding:
December 31, 2025December 31, 2024
Common shares, par value $0.01 per share
Authorized600,000,000 600,000,000 
Issued and outstanding
Common shares 96,651,534 111,730,209 
Schedule of Common Shares Repurchased
The following table summarizes common shares repurchased for the years ended December 31, 2025, 2024, and 2023:
202520242023
Common shares repurchased15,184,976 6,570,003 — 
Cost of shares repurchased, inclusive of commissions$261.4 $105.5 $— 
Weighted average price per share, inclusive of commissions$17.22 $16.06 $— 
v3.25.4
Share Compensation and Employee Benefit Plans (Tables)
12 Months Ended
Dec. 31, 2025
Share-Based Payment Arrangement [Abstract]  
Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award Restricted share units
Number of sharesWeighted average grant date fair value
Outstanding at December 31, 2024555,230$14.18 
Granted598,05115.58 
Vested(96,249)14.33 
Forfeited(66,201)14.87 
Outstanding at December 31, 2025990,831$14.96 
Performance share units without market conditions
Number of sharesWeighted average grant date fair value
Outstanding at December 31, 2024472,211$13.53 
Granted161,47515.36 
Vested(20,571)12.93 
Forfeited(43,665)14.49 
Outstanding at December 31, 2025569,450$14.00 
Performance share units with market conditions
Number of sharesWeighted average grant date fair value
Outstanding at December 31, 2024188,096$14.22 
Granted216,63614.93 
Vested— 
Forfeited(35,432)14.08 
Outstanding at December 31, 2025369,300$14.17 
v3.25.4
Income Taxes (Tables)
12 Months Ended
Dec. 31, 2025
Income Tax Disclosure [Abstract]  
Schedule of Income before Income Tax, Domestic and Foreign
Income before income taxes is split between the Group’s operating jurisdictions based on the jurisdiction of tax residence:
202520242023
United Kingdom$134.1 $76.1 $1,687.4 
Bermuda152.6 67.0 341.2 
Republic of Ireland(11.1)(6.7)18.6 
Total$275.6 $136.4 $2,047.2 
Schedule of Components of Income Tax Expense (Benefit)
The Group income tax (expense)/benefit for the years ended December 31, 2025, 2024, and 2023 was as follows:
202520242023
Current tax (expense)/benefit (excluding Pillar Two top-up tax)$(19.8)$(8.8)$(1.2)
Deferred tax (expense)/benefit (excluding rate change)(8.9)(9.8)86.2 
Rate change on deferred tax— — 0.3 
Pillar Two top-up tax (expense)/benefit(21.4)(4.5)— 
Income tax (expense)/benefit$(50.1)$(23.1)$85.3 
202520242023
Income tax (expense)/benefit allocated to net income$(50.1)$(23.1)$85.3 
Income tax (expense)/benefit allocated to other comprehensive income(9.2)(2.8)(9.7)
Total income tax (expense)/benefit allocated to comprehensive income$(59.3)$(25.9)$75.6 
2025
Income/(loss) before income taxesCurrent tax (expense)/ benefitDeferred tax (expense)/benefitTotal income tax (expense)/benefit
United Kingdom$134.1 $(35.2)$(22.4)$(57.6)
Bermuda152.6 (6.7)12.4 5.7 
Republic of Ireland(11.1)0.7 1.1 1.8 
Total$275.6 $(41.2)$(8.9)$(50.1)
2024
Income/(loss) before income taxesCurrent tax (expense)Deferred tax (expense)/benefitTotal income tax (expense)/benefit
United Kingdom$76.1 $(13.3)$(10.0)$(23.3)
Bermuda67.0 — — — 
Republic of Ireland(6.7)— 0.2 0.2 
Total$136.4 $(13.3)$(9.8)$(23.1)
2023
Income before income taxesCurrent tax (expense)/benefitDeferred tax (expense)/benefitTotal income tax (expense)/benefit
United Kingdom$1,687.4 $0.2 $(3.8)$(3.6)
Bermuda341.2 — 90.0 90.0 
Republic of Ireland18.6 (1.4)0.3 (1.1)
Total$2,047.2 $(1.2)$86.5 $85.3 
Schedule of Effective Income Tax Rate Reconciliation
202520242023
Expected income tax (expense) at the weighted average U.K. income tax rate$(68.9)25.0 %$(34.1)25.0 %$(481.6)23.5 %
Reconciling items
Domestic Tax Effects
Non-taxable income / (expense)(1.6)0.6 %(0.9)0.7 %(1.9)0.1 %
Cross-border tax laws(1)
(21.4)7.8 %(4.5)3.3 %— — %
Net gain on distribution of The Fidelis Partnership not subject to income taxes— — %— — %394.1 (19.3)%
Changes in tax laws or rates— — %— — %0.3 — %
Adjustments in respect of prior periods(1.2)0.4 %1.1 (0.8)%1.1 (0.1)%
Foreign Tax Effects
Bermuda
Statutory income tax rate differential15.3 (5.6)%16.8 (12.3)%80.2 (3.9)%
Changes in tax laws or rates(2)
23.5 (8.5)%— — %90.0 (4.4)%
Foreign tax credits5.1 (1.9)%— — %— — %
Republic of Ireland
Statutory income tax rate differential(1.4)0.5 %(0.8)0.6 %2.0 (0.1)%
Non-taxable income / (expense)(0.2)0.1 %(0.6)0.4 %(0.1)— %
Adjustments in respect of prior periods0.7 (0.3)%(0.1)0.1 %1.2 (0.1)%
Income tax (expense)/benefit$(50.1)18.2 %$(23.1)16.9 %$85.3 (4.2)%
__________________
(1)This row consists exclusively of Pillar Two top-up taxes charged under the Income Inclusion Rule in the U.K. under Finance (No.2) Act 2023. Finance (No. 2) Bill 2025 was published in the U.K. on December 4, 2025 and aligns U.K. legislation with OECD guidance on the treatment of the deferred tax benefit arising on the de-recognition of a portion of the Bermuda ETA. If the Bill is enacted in 2026, our liability for top-up taxes in 2025 will be reversed at the date of enactment.
(2)Changes in tax laws or rates is the recognition and subsequent remeasurement upon the enactment of amendments arising on the Bermuda ETA, discussed above.
Schedule of Deferred Tax Assets and Liabilities
The components of the Group’s net deferred tax asset at December 31, 2025 and 2024 are as follows:
December 31, 2025December 31, 2024
Deferred tax assets:
Intangible assets$94.0 $104.4 
Net operating loss carryforwards5.0 27.5 
Other temporary differences2.8 2.9 
Share-based compensation3.2 2.4 
Reserves for losses and loss adjustment expenses8.4 9.1 
Total deferred tax assets113.4 146.3 
Deferred tax liabilities:
Deferred policy acquisition costs— (23.5)
Fixed assets(1.1)(1.7)
Fixed maturity securities, available-for-sale(4.4)— 
Total deferred tax liabilities(5.5)(25.2)
Valuation allowance(2.2)(2.2)
Net deferred tax asset$105.7 $118.9 
Schedule of Cash Flow, Supplemental Disclosures
The following table presents corporate income taxes paid net of refunds:
202520242023
United Kingdom$24.5 $2.3 $14.7 
Bermuda2.2 — — 
Republic of Ireland— 3.3 — 
Total income tax paid net of refunds$26.7 $5.6 $14.7 
Schedule of Unrecognized Tax Benefits Roll Forward
The following table presents a reconciliation of the beginning and ending amounts of unrecognized tax benefits:
202520242023
Balance, beginning of year$75.0 $75.0 $— 
Additions based on tax positions related to the current year— — 75.0 
Balance, end of year$75.0 $75.0 $75.0 
v3.25.4
SCHEDULE II - Condensed Financial Information of Registrant (Tables)
12 Months Ended
Dec. 31, 2025
Condensed Financial Information Disclosure [Abstract]  
Schedule of Condensed Balance Sheet
Balance Sheets - Parent company only
At December 31, 2025 and 2024
(Expressed in millions of U.S. dollars, except for share and per share amounts)
December 31, 2025December 31, 2024
Assets
Investments in subsidiaries$3,097.7 $2,809.4 
Cash and cash equivalents141.1 54.8 
Amounts due from subsidiaries44.5 81.4 
Other assets10.0 31.9 
Total assets$3,293.3 $2,977.5 
Liabilities
Amounts due to subsidiaries14.2 7.6 
Long term debt843.2 448.9 
Preference securities— 58.4 
Other liabilities36.3 14.2 
Total liabilities893.7529.1
Shareholders' equity
Common shares ($0.01 par, issued and outstanding: 96,651,534, 2024: 111,730,209)
1.0 1.2 
Common shares held in treasury, at cost (shares held: nil, 2024: 6,570,003)
— (105.5)
Additional paid-in capital1,685.6 2,044.6 
Accumulated other comprehensive income37.1 4.5 
Retained earnings675.9 503.6 
Total shareholders' equity2,399.62,448.4
Total liabilities and shareholders' equity$3,293.3 $2,977.5 
Schedule of Condensed Income Statement
Statements of Income and Comprehensive Income - Parent company only
For the years ended December 31, 2025, 2024 and 2023
(Expressed in millions of U.S. dollars)

202520242023
Revenues
Net investment income$7.1 $3.7 $4.9 
Dividends from subsidiaries150.0 200.0 110.0 
Other income6.2 9.0 8.3 
Total revenues before net gain on distribution of The Fidelis Partnership163.3 212.7 123.2 
Net gain on distribution of The Fidelis Partnership— — 1,670.8 
Total revenues163.3 212.7 1,794.0 
Expenses
General and administrative expenses44.1 42.8 35.3 
Corporate and other expenses1.2 1.6 3.2 
Financing costs45.2 30.5 30.5 
Net foreign exchange losses0.1 — 3.7 
Total expenses90.6 74.9 72.7 
Income before income taxes72.7 137.8 1,721.3 
Income tax benefit/(expense)(2.8)10.0 14.1 
Net income before equity in net income of subsidiaries69.9 147.8 1,735.4 
Equity in net income/(loss) of subsidiaries155.6 (34.5)397.1 
Net income available to common shareholders225.5 113.3 2,132.5 
Other comprehensive income
Unrealized gains on available-for-sale investments46.4 9.6 81.7 
Reclassification of net realized losses/(gains) recognized in net income(4.6)24.7 0.7 
Income tax expense, all of which relates to unrealized gains on available-for-sale investments(9.2)(2.8)(9.7)
Total other comprehensive income32.6 31.5 72.7 
Comprehensive income attributable to common shareholders$258.1 $144.8 $2,205.2 
Schedule of Condensed Statement of Comprehensive Income
Statements of Income and Comprehensive Income - Parent company only
For the years ended December 31, 2025, 2024 and 2023
(Expressed in millions of U.S. dollars)

202520242023
Revenues
Net investment income$7.1 $3.7 $4.9 
Dividends from subsidiaries150.0 200.0 110.0 
Other income6.2 9.0 8.3 
Total revenues before net gain on distribution of The Fidelis Partnership163.3 212.7 123.2 
Net gain on distribution of The Fidelis Partnership— — 1,670.8 
Total revenues163.3 212.7 1,794.0 
Expenses
General and administrative expenses44.1 42.8 35.3 
Corporate and other expenses1.2 1.6 3.2 
Financing costs45.2 30.5 30.5 
Net foreign exchange losses0.1 — 3.7 
Total expenses90.6 74.9 72.7 
Income before income taxes72.7 137.8 1,721.3 
Income tax benefit/(expense)(2.8)10.0 14.1 
Net income before equity in net income of subsidiaries69.9 147.8 1,735.4 
Equity in net income/(loss) of subsidiaries155.6 (34.5)397.1 
Net income available to common shareholders225.5 113.3 2,132.5 
Other comprehensive income
Unrealized gains on available-for-sale investments46.4 9.6 81.7 
Reclassification of net realized losses/(gains) recognized in net income(4.6)24.7 0.7 
Income tax expense, all of which relates to unrealized gains on available-for-sale investments(9.2)(2.8)(9.7)
Total other comprehensive income32.6 31.5 72.7 
Comprehensive income attributable to common shareholders$258.1 $144.8 $2,205.2 
Schedule of Condensed Cash Flow Statement
Statements of Cash Flows - Parent company only
For the years ended December 31, 2025, 2024 and 2023
(Expressed in millions of U.S. dollars)
202520242023
Operating activities
Net income$225.5 $113.3 $2,132.5 
Adjustments to reconcile net income after tax to net cash provided by operating activities:
Revaluation of The Fidelis Partnership(1,707.1)
Equity in net (income)/loss of subsidiaries(155.6)34.5(397.1)
Share compensation expense7.9 7.8 27.6 
Accretion, amortization and depreciation0.9 0.7 0.7 
Deferred tax expense23.1 9.6 2.6 
Net changes in assets and liabilities:
Amounts due from The Fidelis Partnership0.2 (0.2)
Amounts due to/from subsidiaries43.5(63.8)(5.4)
Other assets(1.2)0.6 3.0 
Other liabilities22.41.1 11.9 
Net cash provided by operating activities166.5104.068.5
Investing activities
Contributed capital to subsidiaries(100.0)— (90.0)
Net cash used in investing activities(100.0)(90.0)
Financing activities
Dividends on common shares(52.3)(46.2)— 
Repurchase of common shares(261.4)(105.5)— 
Tax paid on withholding shares(0.2)(2.2)(50.6)
Proceeds from issuance of debt, net of issuance costs393.3— — 
Repurchase of preferred securities(59.6)— — 
Proceeds from issuance of common stock, net of issuance costs— 89.4 
Non-controlling interest share transactions— (6.1)
Cumulative dividends on warrants— (34.1)
Net cash provided by/(used in) financing activities19.8(153.9)(1.4)
Net increase/(decrease) in cash, restricted cash, and cash equivalents86.3(49.9)(22.9)
Cash and cash equivalents, beginning of year54.8 104.7 127.6 
Cash and cash equivalents, end of year$141.1 $54.8 $104.7 
v3.25.4
Nature of Operations (Details)
Dec. 31, 2025
May 22, 2024
Syndicate 3123    
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]    
Ownership percentage 7.40% 9.90%
v3.25.4
Segments - Narrative (Details)
12 Months Ended
Dec. 31, 2025
segment
Segment Reporting [Abstract]  
Number of reportable segments 2
v3.25.4
Segments - Summary of Group Segment Disclosures (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Segment Reporting Information [Line Items]      
Gross premiums written $ 4,717.6 $ 4,403.1 $ 3,579.0
Net premiums written 3,008.6 2,394.6 2,136.6
Net premiums earned 2,293.7 2,258.1 1,832.6
Losses and loss adjustment expenses (1,089.8) (1,155.8) (698.8)
Policy acquisition expenses (990.1) (999.7) (723.8)
General and administrative expenses (96.6) (94.3) (82.7)
Underwriting income 117.2 8.3 327.3
Net investment income 184.0 190.5 119.5
Net realized and unrealized investment (losses) gains 22.8 (28.6) 4.9
Other income 0.0 0.0 0.1
Net gain on distribution of The Fidelis Partnership 0.0 0.0 1,639.1
Corporate and other expenses (1.2) (1.6) (4.1)
Net foreign exchange gains (losses) 0.5 1.6 (4.1)
Financing costs (47.7) (33.8) (35.5)
Income before income taxes 275.6 136.4 2,047.2
Income tax (expense)/benefit (50.1) (23.1) 85.3
Net income 225.5 113.3 2,132.5
Losses and loss adjustment expenses incurred - current year (1,092.8) (1,031.2) (761.7)
Losses and loss adjustment expenses incurred - prior accident years 3.0 (124.6) 62.9
Losses and loss adjustment expenses incurred - total $ (1,089.8) $ (1,155.8) $ (698.8)
Underwriting Ratios      
Loss ratio - current year 47.60% 45.70% 41.50%
Loss ratio - prior accident years (0.10%) 5.50% (3.40%)
Loss ratio - total 47.50% 51.20% 38.10%
Policy acquisition expense ratio 28.80% 30.50% 27.20%
Underwriting ratio 76.30% 81.70% 65.30%
The Fidelis Partnership commissions ratio 14.30% 13.80% 12.30%
General and administrative expense ratio 4.20% 4.20% 4.50%
Combined ratio 94.80% 99.70% 82.10%
Other      
Segment Reporting Information [Line Items]      
Gross premiums written $ 0.0 $ 0.0 $ 0.0
Net premiums written 0.0 0.0 0.0
Net premiums earned 0.0 0.0 0.0
Losses and loss adjustment expenses 0.0 0.0 0.0
Policy acquisition expenses (328.8) (311.1) (225.3)
General and administrative expenses (96.6) (94.3) (82.7)
Losses and loss adjustment expenses incurred - total 0.0 0.0 0.0
Insurance      
Segment Reporting Information [Line Items]      
Gross premiums written 3,756.3 3,538.5 2,960.4
Insurance | Operating Segments      
Segment Reporting Information [Line Items]      
Gross premiums written 3,756.3 3,538.5 2,960.4
Net premiums written 2,531.9 2,050.4 1,880.5
Net premiums earned 1,899.4 1,902.4 1,577.0
Losses and loss adjustment expenses (996.5) (1,101.5) (675.1)
Policy acquisition expenses (557.6) (604.6) (429.1)
General and administrative expenses 0.0 0.0 0.0
Underwriting income 345.3 196.3 472.8
Losses and loss adjustment expenses incurred - current year (918.9) (916.9) (669.5)
Losses and loss adjustment expenses incurred - prior accident years (77.6) (184.6) (5.6)
Losses and loss adjustment expenses incurred - total $ (996.5) $ (1,101.5) $ (675.1)
Underwriting Ratios      
Loss ratio - current year 48.40% 48.20% 42.40%
Loss ratio - prior accident years 4.10% 9.70% 0.40%
Loss ratio - total 52.50% 57.90% 42.80%
Policy acquisition expense ratio 29.40% 31.80% 27.20%
Underwriting ratio 81.90% 89.70% 70.00%
Reinsurance      
Segment Reporting Information [Line Items]      
Gross premiums written $ 961.3 $ 864.6 $ 618.6
Losses and loss adjustment expenses incurred - prior accident years 80.6 (60.0)  
Reinsurance | Operating Segments      
Segment Reporting Information [Line Items]      
Gross premiums written 961.3 864.6 618.6
Net premiums written 476.7 344.2 256.1
Net premiums earned 394.3 355.7 255.6
Losses and loss adjustment expenses (93.3) (54.3) (23.7)
Policy acquisition expenses (103.7) (84.0) (69.4)
General and administrative expenses 0.0 0.0 0.0
Underwriting income 197.3 217.4 162.5
Losses and loss adjustment expenses incurred - current year (173.9) (114.3) (92.2)
Losses and loss adjustment expenses incurred - prior accident years 80.6 60.0 68.5
Losses and loss adjustment expenses incurred - total $ (93.3) $ (54.3) $ (23.7)
Underwriting Ratios      
Loss ratio - current year 44.10% 32.20% 36.10%
Loss ratio - prior accident years (20.40%) (16.90%) (26.80%)
Loss ratio - total 23.70% 15.30% 9.30%
Policy acquisition expense ratio 26.30% 23.60% 27.20%
Underwriting ratio 50.00% 38.90% 36.50%
v3.25.4
Segments - Gross Premiums Written by Major Classes of Business Within Each Underwriting Segment (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Segment Reporting Information [Line Items]      
Gross premiums written $ 4,717.6 $ 4,403.1 $ 3,579.0
Insurance      
Segment Reporting Information [Line Items]      
Gross premiums written 3,756.3 3,538.5 2,960.4
Insurance | Property      
Segment Reporting Information [Line Items]      
Gross premiums written 1,314.9 1,279.6 988.1
Insurance | Marine      
Segment Reporting Information [Line Items]      
Gross premiums written 722.6 785.7 673.4
Insurance | Asset Backed Finance & Portfolio Credit      
Segment Reporting Information [Line Items]      
Gross premiums written 531.0 399.2 293.3
Insurance | Energy      
Segment Reporting Information [Line Items]      
Gross premiums written 208.8 192.5 172.1
Insurance | Cyber      
Segment Reporting Information [Line Items]      
Gross premiums written 195.6 82.9 69.9
Insurance | Aviation & Aerospace      
Segment Reporting Information [Line Items]      
Gross premiums written 172.2 339.5 371.8
Insurance | Political Risk, Violence & Terror      
Segment Reporting Information [Line Items]      
Gross premiums written 156.6 204.2 221.7
Insurance | Other Insurance      
Segment Reporting Information [Line Items]      
Gross premiums written 454.6 254.9 170.1
Reinsurance      
Segment Reporting Information [Line Items]      
Gross premiums written 961.3 864.6 618.6
Reinsurance | Property Reinsurance      
Segment Reporting Information [Line Items]      
Gross premiums written 931.6 832.9 596.8
Reinsurance | Retro & Whole Account      
Segment Reporting Information [Line Items]      
Gross premiums written $ 29.7 $ 31.7 $ 21.8
v3.25.4
Segments - Gross Premiums Written by the Geographical Location (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Segment Reporting Information [Line Items]      
Gross premiums written $ 4,717.6 $ 4,403.1 $ 3,579.0
United Kingdom      
Segment Reporting Information [Line Items]      
Gross premiums written 2,423.7 2,347.2 1,977.0
Bermuda      
Segment Reporting Information [Line Items]      
Gross premiums written 1,854.8 1,448.4 1,047.5
Republic of Ireland      
Segment Reporting Information [Line Items]      
Gross premiums written $ 439.1 $ 607.5 $ 554.5
v3.25.4
Investments - Fair Value of Investments (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Debt Securities, Available-for-Sale [Line Items]    
Amortized Cost $ 2,590.6 $ 3,403.8
Fixed maturity securities    
Debt Securities, Available-for-Sale [Line Items]    
Amortized Cost 2,590.6 3,403.8
Unrealized gains 50.4 16.6
Unrealized losses (0.6) (8.8)
Fair value 2,640.4 3,411.6
Fixed maturity securities | U.S. Treasuries    
Debt Securities, Available-for-Sale [Line Items]    
Amortized Cost 477.8 747.6
Unrealized gains 6.6 2.1
Unrealized losses (0.2) (3.1)
Fair value 484.2 746.6
Fixed maturity securities | Agencies    
Debt Securities, Available-for-Sale [Line Items]    
Amortized Cost 6.9 11.5
Unrealized gains 0.0 0.0
Unrealized losses 0.0 0.0
Fair value 6.9 11.5
Fixed maturity securities | Non-U.S. government    
Debt Securities, Available-for-Sale [Line Items]    
Amortized Cost 46.6 46.6
Unrealized gains 0.6 0.1
Unrealized losses 0.0 (0.3)
Fair value 47.2 46.4
Fixed maturity securities | Corporate bonds    
Debt Securities, Available-for-Sale [Line Items]    
Amortized Cost 1,616.8 1,906.3
Unrealized gains 35.7 10.9
Unrealized losses (0.3) (4.0)
Fair value 1,652.2 1,913.2
Fixed maturity securities | Residential mortgage-backed    
Debt Securities, Available-for-Sale [Line Items]    
Amortized Cost 244.3 279.5
Unrealized gains 5.6 0.8
Unrealized losses 0.0 (1.2)
Fair value 249.9 279.1
Fixed maturity securities | Commercial mortgage-backed    
Debt Securities, Available-for-Sale [Line Items]    
Amortized Cost 1.0 0.0
Unrealized gains 0.0 0.4
Unrealized losses 0.0 0.0
Fair value 1.0 0.4
Fixed maturity securities | Other asset-backed securities    
Debt Securities, Available-for-Sale [Line Items]    
Amortized Cost 197.2 412.3
Unrealized gains 1.9 2.3
Unrealized losses (0.1) (0.2)
Fair value 199.0 414.4
Short-term investments    
Debt Securities, Available-for-Sale [Line Items]    
Amortized Cost 111.3 221.9
Unrealized gains 0.0 0.2
Unrealized losses 0.0 0.0
Fair value 111.3 222.1
Short-term investments | U.S. Treasuries    
Debt Securities, Available-for-Sale [Line Items]    
Amortized Cost 109.9 220.5
Unrealized gains 0.0 0.2
Unrealized losses 0.0 0.0
Fair value 109.9 220.7
Short-term investments | Corporate bonds    
Debt Securities, Available-for-Sale [Line Items]    
Amortized Cost 1.0 1.1
Unrealized gains 0.0 0.0
Unrealized losses 0.0 0.0
Fair value 1.0 1.1
Short-term investments | Other asset-backed securities    
Debt Securities, Available-for-Sale [Line Items]    
Amortized Cost 0.4 0.3
Unrealized gains 0.0 0.0
Unrealized losses 0.0 0.0
Fair value $ 0.4 $ 0.3
v3.25.4
Investments - Composition of the Fair Values of Invetments by Credit Rating (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Credit Rating | Credit Concentration Risk    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Concentration risk percentage 100.00% 100.00%
Fixed maturity securities    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Fair value $ 2,640.4 $ 3,411.6
Fixed maturity securities | Credit Rating | Credit Concentration Risk    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Concentration risk percentage 100.00% 100.00%
Short-term investments    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Fair value $ 111.3 $ 222.1
Short-term investments | Credit Rating | Credit Concentration Risk    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Concentration risk percentage 100.00% 100.00%
AAA | Fixed maturity securities    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Fair value $ 216.1 $ 399.4
AAA | Fixed maturity securities | Credit Rating | Credit Concentration Risk    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Concentration risk percentage 9.00% 12.00%
AAA | Short-term investments    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Fair value $ 0.4 $ 0.3
AAA | Short-term investments | Credit Rating | Credit Concentration Risk    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Concentration risk percentage 0.00% 0.00%
AA | Fixed maturity securities    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Fair value $ 891.2 $ 1,245.6
AA | Fixed maturity securities | Credit Rating | Credit Concentration Risk    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Concentration risk percentage 34.00% 37.00%
AA | Short-term investments    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Fair value $ 109.9 $ 220.7
AA | Short-term investments | Credit Rating | Credit Concentration Risk    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Concentration risk percentage 99.00% 100.00%
A | Fixed maturity securities    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Fair value $ 1,118.8 $ 1,270.9
A | Fixed maturity securities | Credit Rating | Credit Concentration Risk    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Concentration risk percentage 42.00% 37.00%
A | Short-term investments    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Fair value $ 0.7 $ 0.0
A | Short-term investments | Credit Rating | Credit Concentration Risk    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Concentration risk percentage 1.00% 0.00%
BBB | Fixed maturity securities    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Fair value $ 382.8 $ 453.1
BBB | Fixed maturity securities | Credit Rating | Credit Concentration Risk    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Concentration risk percentage 14.00% 13.00%
BBB | Short-term investments    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Fair value $ 0.2 $ 0.2
BBB | Short-term investments | Credit Rating | Credit Concentration Risk    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Concentration risk percentage 0.00% 0.00%
Below BBB | Fixed maturity securities    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Fair value $ 31.5 $ 42.6
Below BBB | Fixed maturity securities | Credit Rating | Credit Concentration Risk    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Concentration risk percentage 1.00% 1.00%
Below BBB | Short-term investments    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Fair value $ 0.1 $ 0.9
Below BBB | Short-term investments | Credit Rating | Credit Concentration Risk    
Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]    
Concentration risk percentage 0.00% 0.00%
v3.25.4
Investments - Contractual Maturities for Investments (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Amortized Cost    
Due in one year or less $ 233.0 $ 147.9
Due after one year through five years 1,503.5 2,141.2
Due after five years through ten years 520.3 767.7
Due after ten years 333.8 347.0
Total fixed maturity securities 2,590.6 3,403.8
Fair Value    
Due in one year or less 234.2 147.6
Due after one year through five years 1,532.4 2,149.8
Due after five years through ten years 534.3 766.7
Due after ten years 339.5 347.5
Total fixed maturity securities $ 2,640.4 $ 3,411.6
v3.25.4
Investments - Continuous Loss Position (Details)
$ in Millions
Dec. 31, 2025
USD ($)
security
Dec. 31, 2024
USD ($)
security
Debt Securities, Available-for-Sale [Line Items]    
Fair value $ 136.2 $ 1,035.5
Gross unrealized losses (0.5) (7.6)
Gross unrealized losses $ (0.1) $ (1.2)
Number of securities | security 215 431
U.S. Treasuries    
Debt Securities, Available-for-Sale [Line Items]    
Fair value $ 50.1 $ 307.6
Gross unrealized losses (0.1) (2.8)
Gross unrealized losses $ (0.1) $ (0.3)
Number of securities | security 49 48
Agencies    
Debt Securities, Available-for-Sale [Line Items]    
Fair value   $ 4.0
Gross unrealized losses   0.0
Gross unrealized losses   $ 0.0
Number of securities | security   2
Non-U.S. government    
Debt Securities, Available-for-Sale [Line Items]    
Fair value $ 5.3 $ 23.7
Gross unrealized losses 0.0 (0.1)
Gross unrealized losses $ 0.0 $ (0.2)
Number of securities | security 3 11
Corporate bonds    
Debt Securities, Available-for-Sale [Line Items]    
Fair value $ 53.3 $ 543.6
Gross unrealized losses (0.3) (3.4)
Gross unrealized losses $ 0.0 $ (0.6)
Number of securities | security 132 310
Residential mortgage-backed    
Debt Securities, Available-for-Sale [Line Items]    
Fair value $ 2.2 $ 91.9
Gross unrealized losses 0.0 (1.1)
Gross unrealized losses $ 0.0 $ (0.1)
Number of securities | security 1 35
Other asset-backed securities    
Debt Securities, Available-for-Sale [Line Items]    
Fair value $ 25.3 $ 64.7
Gross unrealized losses (0.1) (0.2)
Gross unrealized losses $ 0.0 $ 0.0
Number of securities | security 30 25
v3.25.4
Investments - Narrative (Details)
Dec. 31, 2025
USD ($)
security
Dec. 31, 2024
USD ($)
security
Debt Securities, Available-for-Sale [Line Items]    
Number of securities | security 215 431
Number of positions | security 1,624 1,713
Debt securities, available-for-sale, continuous unrealized loss position, largest single amount $ 100,000 $ 500,000
Fixed income funds 63,400,000 0
Unfunded investment commitments $ 12,200,000 $ 0
Percentage of total net asset value of hedge fund 1.00% 0.00%
Hedge Funds    
Debt Securities, Available-for-Sale [Line Items]    
Equity method investments $ 110,000,000  
Private credit funds    
Debt Securities, Available-for-Sale [Line Items]    
Unfunded investment commitments $ 108,100,000 $ 0
Maximum    
Debt Securities, Available-for-Sale [Line Items]    
Percentage of total net asset value of hedge fund 94.00% 80.00%
Minimum    
Debt Securities, Available-for-Sale [Line Items]    
Percentage of total net asset value of hedge fund 6.00% 20.00%
v3.25.4
Investments - Allowance for Expected Credit Losses (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward]      
Balance at beginning of year $ 5.9 $ 1.3 $ 1.1
Expected credit losses on securities where credit losses were not previously recognized 1.8 7.3 4.1
Reductions for expected credit losses on securities where credit losses were previously recognized (6.2) (2.4) (3.5)
Securities sold/redeemed/matured (0.9) (0.3) (0.4)
Balance at end of year $ 0.6 $ 5.9 $ 1.3
v3.25.4
Investments - Other Investments at Fair Value (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Debt Securities, Available-for-Sale [Line Items]    
Other Long-Term Investments $ 485.7 $ 201.0
Hedge Fund Investments    
Debt Securities, Available-for-Sale [Line Items]    
Other Long-Term Investments $ 230.8 $ 201.0
Credit Rating | Credit Concentration Risk    
Debt Securities, Available-for-Sale [Line Items]    
Concentration risk percentage 100.00% 100.00%
Credit Rating | Credit Concentration Risk | Hedge Fund Investments    
Debt Securities, Available-for-Sale [Line Items]    
Concentration risk percentage 48.00% 100.00%
Fixed income funds    
Debt Securities, Available-for-Sale [Line Items]    
Other Long-Term Investments $ 243.0 $ 0.0
Fixed income funds | Credit Rating | Credit Concentration Risk    
Debt Securities, Available-for-Sale [Line Items]    
Concentration risk percentage 50.00% 0.00%
Credit    
Debt Securities, Available-for-Sale [Line Items]    
Other Long-Term Investments $ 25.0 $ 22.3
Credit | Credit Rating | Credit Concentration Risk    
Debt Securities, Available-for-Sale [Line Items]    
Concentration risk percentage 5.00% 12.00%
Global macro    
Debt Securities, Available-for-Sale [Line Items]    
Other Long-Term Investments $ 41.6 $ 44.8
Global macro | Credit Rating | Credit Concentration Risk    
Debt Securities, Available-for-Sale [Line Items]    
Concentration risk percentage 9.00% 22.00%
Long/short    
Debt Securities, Available-for-Sale [Line Items]    
Other Long-Term Investments $ 67.4 $ 44.9
Long/short | Credit Rating | Credit Concentration Risk    
Debt Securities, Available-for-Sale [Line Items]    
Concentration risk percentage 14.00% 22.00%
Multi-strategy and event-driven    
Debt Securities, Available-for-Sale [Line Items]    
Other Long-Term Investments $ 96.8 $ 89.0
Multi-strategy and event-driven | Credit Rating | Credit Concentration Risk    
Debt Securities, Available-for-Sale [Line Items]    
Concentration risk percentage 20.00% 44.00%
Private credit funds    
Debt Securities, Available-for-Sale [Line Items]    
Other Long-Term Investments $ 11.9 $ 0.0
Private credit funds | Credit Rating | Credit Concentration Risk    
Debt Securities, Available-for-Sale [Line Items]    
Concentration risk percentage 2.00% 0.00%
v3.25.4
Investments - Components of Net Investment Return (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract]      
Net interest and dividend income $ 192.6 $ 195.8 $ 123.5
Investment expenses (8.6) (5.3) (4.0)
Net investment income 184.0 190.5 119.5
Net realized and unrealized gains on other investments 12.9 0.7 5.8
Net realized gains/(losses) on fixed maturity securities, available-for-sale 4.6 (24.7) (0.7)
Change in provision for expected credit losses 5.3 (4.6) (0.2)
Net realized and unrealized investment gains/(losses) 22.8 (28.6) 4.9
Total realized and unrealized investments gains/(losses) and net investment income $ 206.8 $ 161.9 $ 124.4
v3.25.4
Fair Value Measurements - Financial Instruments Measured at Fair Value on a Recurring Basis (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Assets    
Investments pending settlement $ 4.8 $ 0.5
Derivative Asset, Statement of Financial Position [Extensible Enumeration] Other assets  
Derivative assets $ 2.4  
Total other assets 7.2 0.5
Total assets measured at fair value 2,758.9 3,634.2
Liabilities    
Derivative liabilities (1.7) (0.5)
Investments pending settlement (6.6) (21.1)
Total other liabilities (8.3) (21.6)
Total liabilities measured at fair value (8.3) (21.6)
Fixed maturity securities    
Assets    
Fair value 2,640.4 3,411.6
Fixed maturity securities | U.S. Treasuries    
Assets    
Fair value 484.2 746.6
Fixed maturity securities | Agencies    
Assets    
Fair value 6.9 11.5
Fixed maturity securities | Non-U.S. government    
Assets    
Fair value 47.2 46.4
Fixed maturity securities | Corporate bonds    
Assets    
Fair value 1,652.2 1,913.2
Fixed maturity securities | Residential mortgage-backed    
Assets    
Fair value 249.9 279.1
Fixed maturity securities | Commercial mortgage-backed    
Assets    
Fair value 1.0 0.4
Fixed maturity securities | Other asset-backed securities    
Assets    
Fair value 199.0 414.4
Short-term investments    
Assets    
Fair value 111.3 222.1
Short-term investments | U.S. Treasuries    
Assets    
Fair value 109.9 220.7
Short-term investments | Corporate bonds    
Assets    
Fair value 1.0 1.1
Short-term investments | Other asset-backed securities    
Assets    
Fair value 0.4 0.3
Level 1    
Assets    
Investments pending settlement 4.8 0.5
Derivative assets 0.0  
Total other assets 4.8 0.5
Total assets measured at fair value 598.9 967.8
Liabilities    
Derivative liabilities 0.0 0.0
Investments pending settlement (6.6) (21.1)
Total other liabilities (6.6) (21.1)
Total liabilities measured at fair value (6.6) (21.1)
Level 1 | Fixed maturity securities    
Assets    
Fair value 484.2 746.6
Level 1 | Fixed maturity securities | U.S. Treasuries    
Assets    
Fair value 484.2 746.6
Level 1 | Fixed maturity securities | Agencies    
Assets    
Fair value 0.0 0.0
Level 1 | Fixed maturity securities | Non-U.S. government    
Assets    
Fair value 0.0 0.0
Level 1 | Fixed maturity securities | Corporate bonds    
Assets    
Fair value 0.0 0.0
Level 1 | Fixed maturity securities | Residential mortgage-backed    
Assets    
Fair value 0.0 0.0
Level 1 | Fixed maturity securities | Commercial mortgage-backed    
Assets    
Fair value 0.0 0.0
Level 1 | Fixed maturity securities | Other asset-backed securities    
Assets    
Fair value 0.0 0.0
Level 1 | Short-term investments    
Assets    
Fair value 109.9 220.7
Level 1 | Short-term investments | U.S. Treasuries    
Assets    
Fair value 109.9 220.7
Level 1 | Short-term investments | Corporate bonds    
Assets    
Fair value 0.0 0.0
Level 1 | Short-term investments | Other asset-backed securities    
Assets    
Fair value 0.0 0.0
Level 2    
Assets    
Investments pending settlement 0.0 0.0
Derivative assets 2.4  
Total other assets 2.4 0.0
Total assets measured at fair value 2,160.0 2,666.4
Liabilities    
Derivative liabilities (1.7) (0.5)
Investments pending settlement 0.0 0.0
Total other liabilities (1.7) (0.5)
Total liabilities measured at fair value (1.7) (0.5)
Level 2 | Fixed maturity securities    
Assets    
Fair value 2,156.2 2,665.0
Level 2 | Fixed maturity securities | U.S. Treasuries    
Assets    
Fair value 0.0 0.0
Level 2 | Fixed maturity securities | Agencies    
Assets    
Fair value 6.9 11.5
Level 2 | Fixed maturity securities | Non-U.S. government    
Assets    
Fair value 47.2 46.4
Level 2 | Fixed maturity securities | Corporate bonds    
Assets    
Fair value 1,652.2 1,913.2
Level 2 | Fixed maturity securities | Residential mortgage-backed    
Assets    
Fair value 249.9 279.1
Level 2 | Fixed maturity securities | Commercial mortgage-backed    
Assets    
Fair value 1.0 0.4
Level 2 | Fixed maturity securities | Other asset-backed securities    
Assets    
Fair value 199.0 414.4
Level 2 | Short-term investments    
Assets    
Fair value 1.4 1.4
Level 2 | Short-term investments | U.S. Treasuries    
Assets    
Fair value 0.0 0.0
Level 2 | Short-term investments | Corporate bonds    
Assets    
Fair value 1.0 1.1
Level 2 | Short-term investments | Other asset-backed securities    
Assets    
Fair value 0.4 0.3
Level 3    
Assets    
Investments pending settlement 0.0 0.0
Derivative assets 0.0  
Total other assets 0.0 0.0
Total assets measured at fair value 0.0 0.0
Liabilities    
Derivative liabilities 0.0 0.0
Investments pending settlement 0.0 0.0
Total other liabilities 0.0 0.0
Total liabilities measured at fair value 0.0 0.0
Level 3 | Fixed maturity securities    
Assets    
Fair value 0.0 0.0
Level 3 | Fixed maturity securities | U.S. Treasuries    
Assets    
Fair value 0.0 0.0
Level 3 | Fixed maturity securities | Agencies    
Assets    
Fair value 0.0 0.0
Level 3 | Fixed maturity securities | Non-U.S. government    
Assets    
Fair value 0.0 0.0
Level 3 | Fixed maturity securities | Corporate bonds    
Assets    
Fair value 0.0 0.0
Level 3 | Fixed maturity securities | Residential mortgage-backed    
Assets    
Fair value 0.0 0.0
Level 3 | Fixed maturity securities | Commercial mortgage-backed    
Assets    
Fair value 0.0 0.0
Level 3 | Fixed maturity securities | Other asset-backed securities    
Assets    
Fair value 0.0 0.0
Level 3 | Short-term investments    
Assets    
Fair value 0.0 0.0
Level 3 | Short-term investments | U.S. Treasuries    
Assets    
Fair value 0.0 0.0
Level 3 | Short-term investments | Corporate bonds    
Assets    
Fair value 0.0 0.0
Level 3 | Short-term investments | Other asset-backed securities    
Assets    
Fair value $ 0.0 $ 0.0
v3.25.4
Fair Value Measurements - Financial Instruments Based on Observable Inputs (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Oct. 20, 2020
Jul. 02, 2020
Subordinated Debt | Senior Notes        
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]        
Interest rate, stated percentage 7.75% 7.75%    
Senior notes due 2030 | Senior Notes        
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]        
Interest rate, stated percentage 4.875% 4.875%   4.875%
Fixed Rate Reset Junior Subordinated notes due 2041 | Junior Subordinated Debt        
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]        
Interest rate, stated percentage 6.625% 6.625% 6.625%  
Fair Value | Preference securities        
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]        
Debt instrument, fair value disclosure $ 0.0 $ 57.2    
Fair Value | Level 2 | 7.750% Subordinated notes due 2055 | Subordinated Debt        
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]        
Debt instrument, fair value disclosure 431.0 0.0    
Fair Value | Level 2 | 4.875% Senior notes due 2030 | Senior Notes        
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]        
Debt instrument, fair value disclosure 327.7 319.7    
Fair Value | Level 2 | 6.625% Fixed Rate Reset Junior Subordinated notes due 2041 | Junior Subordinated Debt        
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]        
Debt instrument, fair value disclosure 124.4 123.2    
Carrying Value | Preference securities        
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]        
Debt instrument, fair value disclosure 0.0 58.4    
Carrying Value | Level 2 | 7.750% Subordinated notes due 2055 | Subordinated Debt        
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]        
Debt instrument, fair value disclosure 393.5 0.0    
Carrying Value | Level 2 | 4.875% Senior notes due 2030 | Senior Notes        
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]        
Debt instrument, fair value disclosure 326.4 325.6    
Carrying Value | Level 2 | 6.625% Fixed Rate Reset Junior Subordinated notes due 2041 | Junior Subordinated Debt        
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]        
Debt instrument, fair value disclosure $ 123.3 $ 123.3    
v3.25.4
Total Cash, Cash Equivalents, Restricted Cash and Restricted Investments - Summary of Cash and Cash Equivalents, Restricted Cash and Restricted Investments (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Restricted Cash and Cash Equivalent Item [Line Items]        
Cash and cash equivalents $ 873.0 $ 743.0    
Restricted cash and cash equivalents 374.6 203.6    
Total cash, cash equivalents and restricted cash 1,247.6 946.6 $ 964.1 $ 1,407.9
Restricted investments securing reinsurance contracts and letter of credit facilities 850.7 1,328.7    
Total cash, cash equivalents, restricted cash and restricted investments 2,098.3 2,275.3    
Financial Standby Letter of Credit        
Restricted Cash and Cash Equivalent Item [Line Items]        
Restricted cash and cash equivalents 21.5 51.6    
Reinsurance Contracts        
Restricted Cash and Cash Equivalent Item [Line Items]        
Restricted cash and cash equivalents $ 353.1 $ 152.0    
v3.25.4
Derivative Financial Instruments - Fair Value and Notional Amounts of Derivative Instruments (Details) - Not Designated as Hedging Instrument - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Derivative liabilities at fair value    
Derivative assets at fair value $ 2.4 $ 0.0
Derivative liabilities at fair value (1.7) (0.5)
Credit default swaps    
Derivative liabilities at fair value    
Derivative assets at fair value 2.4 0.0
Derivative liabilities at fair value 0.0 0.0
Notional amounts    
Notional amounts 2.2 0.0
Forwards    
Derivative liabilities at fair value    
Derivative assets at fair value 0.0 0.0
Derivative liabilities at fair value (1.7) (0.5)
Notional amounts    
Notional amounts $ 133.3 $ 31.0
v3.25.4
Derivative Financial Instruments - Net Change in Net Unrealized Gains (Losses) to Derivative Instruments (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Credit default swaps      
Derivative [Line Items]      
Net realized gains/(losses) $ 0.0 $ 0.0 $ 0.0
Change in net unrealized gains/(losses) 0.0 0.0 0.0
Forwards      
Derivative [Line Items]      
Net realized gains/(losses) (16.4) (3.6) 3.8
Change in net unrealized gains/(losses) $ (1.3) $ 0.6 $ (7.3)
v3.25.4
Deferred Policy Acquisition Costs (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]      
Balance at the beginning of the year $ 877.9 $ 786.6  
Acquisition costs deferred 1,197.2 1,091.0  
Amortization of deferred policy acquisition costs (990.1) (999.7) $ (723.8)
Balance at the end of the year $ 1,085.0 $ 877.9 $ 786.6
v3.25.4
Reserves for Losses and Loss Adjustment Expenses - Reconciliation of Unpaid Losses and Loss Adjustment Expenses (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]        
Reserves for losses and loss adjustment expenses, beginning of year $ 3,134.3 $ 2,448.9 $ 2,045.2  
Reinsurance recoverable on reserves for losses and loss adjustment expenses (1,195.6) (1,255.6) (1,108.6) $ (976.1)
Net reserves for losses and loss adjustment expenses, beginning of year 1,878.7 1,340.3 1,069.1  
Current year 1,092.8 1,031.2 761.7  
Prior years (3.0) 124.6 (62.9)  
Total incurred 1,089.8 1,155.8 698.8  
Current year (268.5) (188.4) (110.1)  
Prior years (1,314.2) (406.8) (329.4)  
Total paid (1,582.7) (595.2) (439.5)  
Foreign exchange 25.7 (22.2) 11.9  
Net reserves for losses and loss adjustment expenses, end of year 1,411.5 1,878.7 1,340.3  
Reinsurance recoverable on reserves for losses and loss adjustment expenses 1,195.6 1,255.6 1,108.6  
Reserves for losses and loss adjustment expenses, end of year $ 2,607.1 $ 3,134.3 $ 2,448.9  
v3.25.4
Reserves for Losses and Loss Adjustment Expenses - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]      
Prior years $ (3.0) $ 124.6 $ (62.9)
Insurance      
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]      
Prior years 77.6 184.6  
Reinsurance      
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]      
Prior years $ (80.6) $ 60.0  
v3.25.4
Reserves for Losses and Loss Adjustment Expenses - Incurred Losses and Loss Adjustment Expenses, Net of Reinsurance (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Insurance                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Incurred losses and loss adjustment expenses – net of reinsurance $ 3,931.3                  
Total of IBNR plus expected development on reported losses 580.1                  
Insurance | 2016                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Incurred losses and loss adjustment expenses – net of reinsurance 3.7 $ 3.7 $ 4.0 $ 3.8 $ 4.3 $ 7.0 $ 8.4 $ 9.4 $ 11.2 $ 19.2
Total of IBNR plus expected development on reported losses 0.1                  
Insurance | 2017                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Incurred losses and loss adjustment expenses – net of reinsurance 10.3 9.6 9.4 9.9 11.2 11.6 12.7 16.9 24.5  
Total of IBNR plus expected development on reported losses 1.0                  
Insurance | 2018                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Incurred losses and loss adjustment expenses – net of reinsurance 20.2 18.7 20.9 28.1 30.0 31.6 37.7 45.0    
Total of IBNR plus expected development on reported losses (9.7)                  
Insurance | 2019                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Incurred losses and loss adjustment expenses – net of reinsurance 68.4 68.0 73.1 61.7 57.7 50.3 68.8      
Total of IBNR plus expected development on reported losses 1.6                  
Insurance | 2020                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Incurred losses and loss adjustment expenses – net of reinsurance 122.3 130.1 127.5 130.8 121.9 161.8        
Total of IBNR plus expected development on reported losses (61.1)                  
Insurance | 2021                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Incurred losses and loss adjustment expenses – net of reinsurance 266.2 262.0 279.6 260.9 310.3          
Total of IBNR plus expected development on reported losses (2.0)                  
Insurance | 2022                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Incurred losses and loss adjustment expenses – net of reinsurance 1,358.1 1,027.8 660.5 678.4            
Total of IBNR plus expected development on reported losses (69.6)                  
Insurance | 2023                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Incurred losses and loss adjustment expenses – net of reinsurance 505.0 504.5 674.6              
Total of IBNR plus expected development on reported losses 32.1                  
Insurance | 2024                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Incurred losses and loss adjustment expenses – net of reinsurance 655.3 907.5                
Total of IBNR plus expected development on reported losses 139.9                  
Insurance | 2025                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Incurred losses and loss adjustment expenses – net of reinsurance 921.8                  
Total of IBNR plus expected development on reported losses 547.8                  
Reinsurance                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Incurred losses and loss adjustment expenses – net of reinsurance 1,228.6                  
Total of IBNR plus expected development on reported losses 151.0                  
Reinsurance | 2016                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Incurred losses and loss adjustment expenses – net of reinsurance 33.2 33.1 33.0 40.9 41.1 45.0 48.7 54.0 61.3 $ 74.1
Total of IBNR plus expected development on reported losses 0.1                  
Reinsurance | 2017                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Incurred losses and loss adjustment expenses – net of reinsurance 45.4 47.4 50.8 55.4 53.0 55.6 51.6 58.7 $ 87.1  
Total of IBNR plus expected development on reported losses 3.9                  
Reinsurance | 2018                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Incurred losses and loss adjustment expenses – net of reinsurance 63.6 64.9 68.6 84.3 91.2 92.6 90.8 $ 81.8    
Total of IBNR plus expected development on reported losses (1.0)                  
Reinsurance | 2019                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Incurred losses and loss adjustment expenses – net of reinsurance 37.3 38.1 39.9 48.5 47.1 47.4 $ 46.4      
Total of IBNR plus expected development on reported losses 1.6                  
Reinsurance | 2020                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Incurred losses and loss adjustment expenses – net of reinsurance 237.9 245.8 241.6 245.3 226.7 $ 193.0        
Total of IBNR plus expected development on reported losses 8.8                  
Reinsurance | 2021                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Incurred losses and loss adjustment expenses – net of reinsurance 366.4 383.1 399.0 401.5 $ 369.7          
Total of IBNR plus expected development on reported losses 15.1                  
Reinsurance | 2022                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Incurred losses and loss adjustment expenses – net of reinsurance 149.6 147.8 150.4 $ 176.4            
Total of IBNR plus expected development on reported losses 24.1                  
Reinsurance | 2023                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Incurred losses and loss adjustment expenses – net of reinsurance 52.0 52.0 $ 89.7              
Total of IBNR plus expected development on reported losses 3.9                  
Reinsurance | 2024                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Incurred losses and loss adjustment expenses – net of reinsurance 67.9 $ 121.7                
Total of IBNR plus expected development on reported losses 13.9                  
Reinsurance | 2025                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Incurred losses and loss adjustment expenses – net of reinsurance 175.3                  
Total of IBNR plus expected development on reported losses $ 80.6                  
v3.25.4
Reserves for Losses and Loss Adjustment Expenses - Cumulative Paid Losses and Loss Adjustment Expenses, Net of Reinsurance (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Insurance                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Cumulative paid losses and loss adjustment expenses - net of reinsurance $ 2,787.4                  
Reserve FX 3.3                  
ULAE 20.8                  
Liabilities for losses and loss adjustment expenses, net of reinsurance 1,168.0                  
Insurance | 2016                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Cumulative paid losses and loss adjustment expenses - net of reinsurance 3.6 $ 3.6 $ 3.6 $ 3.6 $ 3.7 $ 4.1 $ 4.0 $ 3.8 $ 2.9 $ 0.0
Insurance | 2017                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Cumulative paid losses and loss adjustment expenses - net of reinsurance 7.8 7.5 7.4 7.6 7.9 6.1 4.2 2.4 0.0  
Insurance | 2018                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Cumulative paid losses and loss adjustment expenses - net of reinsurance 27.6 26.6 24.6 20.9 21.5 13.0 5.8 0.5    
Insurance | 2019                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Cumulative paid losses and loss adjustment expenses - net of reinsurance 60.2 59.0 49.2 36.6 24.3 23.2 7.1      
Insurance | 2020                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Cumulative paid losses and loss adjustment expenses - net of reinsurance 173.9 164.7 168.0 216.2 212.3 26.6        
Insurance | 2021                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Cumulative paid losses and loss adjustment expenses - net of reinsurance 241.0 213.7 188.1 123.5 44.6          
Insurance | 2022                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Cumulative paid losses and loss adjustment expenses - net of reinsurance 1,376.8 412.7 218.8 61.9            
Insurance | 2023                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Cumulative paid losses and loss adjustment expenses - net of reinsurance 380.7 260.2 89.5              
Insurance | 2024                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Cumulative paid losses and loss adjustment expenses - net of reinsurance 306.3 158.5                
Insurance | 2025                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Cumulative paid losses and loss adjustment expenses - net of reinsurance 209.5                  
Reinsurance                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Cumulative paid losses and loss adjustment expenses - net of reinsurance 986.9                  
Reserve FX (3.1)                  
ULAE 4.9                  
Liabilities for losses and loss adjustment expenses, net of reinsurance 243.5                  
Reinsurance | 2016                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Cumulative paid losses and loss adjustment expenses - net of reinsurance 33.0 33.0 22.9 22.7 22.5 21.8 21.6 20.2 12.0 $ 2.1
Reinsurance | 2017                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Cumulative paid losses and loss adjustment expenses - net of reinsurance 39.6 38.5 38.0 34.8 52.7 52.3 47.0 45.0 $ 26.5  
Reinsurance | 2018                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Cumulative paid losses and loss adjustment expenses - net of reinsurance 63.4 63.0 63.9 68.3 55.2 42.7 18.9 $ 23.8    
Reinsurance | 2019                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Cumulative paid losses and loss adjustment expenses - net of reinsurance 35.3 34.5 34.8 36.3 37.4 35.8 $ 3.0      
Reinsurance | 2020                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Cumulative paid losses and loss adjustment expenses - net of reinsurance 223.6 200.4 195.1 172.8 140.2 $ 56.5        
Reinsurance | 2021                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Cumulative paid losses and loss adjustment expenses - net of reinsurance 349.3 353.1 370.7 305.9 $ 164.7          
Reinsurance | 2022                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Cumulative paid losses and loss adjustment expenses - net of reinsurance 98.6 94.0 79.9 $ 21.9            
Reinsurance | 2023                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Cumulative paid losses and loss adjustment expenses - net of reinsurance 41.5 36.5 $ 22.6              
Reinsurance | 2024                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Cumulative paid losses and loss adjustment expenses - net of reinsurance 43.6 $ 32.1                
Reinsurance | 2025                    
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]                    
Cumulative paid losses and loss adjustment expenses - net of reinsurance $ 59.0                  
v3.25.4
Reserves for Losses and Loss Adjustment Expenses - Reserves for Losses and Loss Adjustment Expenses (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]        
Liabilities for losses and loss adjustment expenses, net of reinsurance $ 1,385.8 $ 1,849.4    
Reinsurance recoverable on reserves for losses and loss adjustment expenses 1,195.6 1,255.6 $ 1,108.6 $ 976.1
Unallocated loss adjustment expenses 25.7 29.3    
Total gross reserves for losses and loss adjustment expenses 2,607.1 3,134.3 $ 2,448.9 $ 2,045.2
Insurance        
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]        
Liabilities for losses and loss adjustment expenses, net of reinsurance 1,147.2 1,611.8    
Reinsurance recoverable on reserves for losses and loss adjustment expenses 939.2 879.5    
Reinsurance        
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]        
Liabilities for losses and loss adjustment expenses, net of reinsurance 238.6 237.6    
Reinsurance recoverable on reserves for losses and loss adjustment expenses $ 256.4 $ 376.1    
v3.25.4
Reserves for Losses and Loss Adjustment Expenses - Historical Loss Duration (Details)
Dec. 31, 2025
Insurance  
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]  
Year 1 15.00%
Year 2 25.00%
Year 3 17.00%
Year 4 52.00%
Year 5 8.00%
Year 6 10.00%
Year 7 3.00%
Reinsurance  
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]  
Year 1 34.00%
Year 2 35.00%
Year 3 15.00%
Year 4 3.00%
Year 5 2.00%
Year 6 0.00%
Year 7 2.00%
v3.25.4
Reinsurance and Retrocessional Reinsurance - Written and Earned Premiums and Loss and Loss Adjustment Expenses (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Written premiums      
Direct $ 2,937.6 $ 2,928.1 $ 2,489.2
Assumed 1,780.0 1,475.0 1,089.8
Gross premiums written 4,717.6 4,403.1 3,579.0
Ceded (1,709.0) (2,008.5) (1,442.4)
Net premiums written 3,008.6 2,394.6 2,136.6
Premiums earned      
Direct 2,528.4 2,633.2 1,992.8
Assumed 1,455.1 1,272.5 1,044.5
Gross premiums earned 3,983.5 3,905.7 3,037.3
Ceded (1,689.8) (1,647.6) (1,204.7)
Net premiums earned 2,293.7 2,258.1 1,832.6
Losses and loss adjustment expense      
Direct 1,489.2 1,465.6 870.2
Assumed 767.0 320.9 343.9
Losses and loss adjustment expense incurred 2,256.2 1,786.5 1,214.1
Ceded (1,166.4) (630.7) (515.3)
Losses and loss adjustment expense incurred, net $ 1,089.8 $ 1,155.8 $ 698.8
v3.25.4
Reinsurance and Retrocessional Reinsurance - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Ceded Credit Risk [Line Items]        
Reinsurance recoverable on reserves for losses and loss adjustment expenses $ 1,195.6 $ 1,255.6 $ 1,108.6 $ 976.1
Reinsurance recoverable for paid claims and claims adjustments 438.7 278.4    
Reinsurance recoverables on paid losses, allowance 0.3 0.2    
Reinsurance recoverables on unpaid losses, allowance $ 0.9 $ 0.8    
Reinsurance Recoverable Including Reinsurance Premium Paid | Reinsurer Concentration Risk | A- or higher        
Ceded Credit Risk [Line Items]        
Concentration risk percentage 87.10% 89.40%    
Reinsurance Recoverable Including Reinsurance Premium Paid | Reinsurer Concentration Risk | Collateralized        
Ceded Credit Risk [Line Items]        
Concentration risk percentage 7.70% 8.80%    
Reinsurance Recoverable Including Reinsurance Premium Paid | Reinsurer Concentration Risk | Lower than A-        
Ceded Credit Risk [Line Items]        
Concentration risk percentage 5.20% 1.80%    
v3.25.4
Reinsurance and Retrocessional Reinsurance - Premiums Receivable on Paid and Unpaid Claims (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Reinsurance Balances Recoverable on Reserves For Losses and Loss Adjustments Expenses [Roll Forward]    
Balance at the beginning of the year $ 1.0 $ 1.3
Change for provision of expected credit losses 0.2 (0.3)
Balance at the end of the year $ 1.2 $ 1.0
v3.25.4
Reinsurance and Retrocessional Reinsurance - Premiums Receivable on Paid Claims (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Premium Receivable, Allowance for Credit Loss [Roll Forward]    
Balance at the beginning of the year $ 11.8 $ 17.3
Change for provision of expected credit losses 4.0 (5.5)
Balance at the end of the year $ 15.8 $ 11.8
v3.25.4
Long Term Debt and Preference Securities - Narrative (Details) - USD ($)
$ / shares in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2015
Jun. 13, 2025
Oct. 20, 2020
Oct. 16, 2020
Jul. 02, 2020
Jun. 18, 2020
Debt Instrument [Line Items]                  
Preferred stock, dividend rate, percentage       0.50%          
Preferred stock, dividend rate, percentage $ 0                
Preference Securities                  
Debt Instrument [Line Items]                  
Preferred stock, dividend rate, percentage       9.00%          
Preferred stock, dividend rate, per-dollar-amount (in dollars per share)       $ 10          
Preferred stock, liquidation preference, value (in dollars per share)       $ 10,000 $ 58,400,000        
Temporary Equity, Liquidation Preference         1,200,000        
Preference Securities | Financing Costs                  
Debt Instrument [Line Items]                  
Dividends, preferred stock $ 2,600,000 $ 5,300,000 $ 5,200,000            
Fixed Rate Reset Subordinated Notes Due 2055 | Junior Subordinated Debt                  
Debt Instrument [Line Items]                  
Debt instrument, face amount         $ 400,000,000.0        
Interest rate, stated percentage         7.75%        
Derivative, basis spread on variable rate         4.28%        
Fixed Rate Reset Junior Subordinated notes due 2041 | Junior Subordinated Debt                  
Debt Instrument [Line Items]                  
Debt instrument, face amount           $ 20,000,000.0 $ 105,000,000.0    
Interest rate, stated percentage 6.625% 6.625%       6.625%      
Derivative, basis spread on variable rate           6.323%      
Senior notes due 2030 | Senior Notes                  
Debt Instrument [Line Items]                  
Debt instrument, face amount               $ 30,000,000.0 $ 300,000,000.0
Interest rate, stated percentage 4.875% 4.875%           4.875%  
v3.25.4
Long Term Debt and Preference Securities - Debt Issued (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Jun. 13, 2025
Dec. 31, 2024
Oct. 20, 2020
Jul. 02, 2020
Debt Instrument [Line Items]          
Principal $ 855.0   $ 455.0    
Unamortized discount and debt issuance costs (11.8)   (6.1)    
Fixed Rate Reset Subordinated Notes Due 2055 | Senior Notes          
Debt Instrument [Line Items]          
Principal 400.0   0.0    
Unamortized discount and debt issuance costs (6.5)   0.0    
Fixed Rate Reset Subordinated Notes Due 2055 | Junior Subordinated Debt          
Debt Instrument [Line Items]          
Interest rate, stated percentage   7.75%      
Senior notes due 2030 | Senior Notes          
Debt Instrument [Line Items]          
Principal 330.0   330.0    
Unamortized discount and debt issuance costs $ (3.6)   $ (4.4)    
Interest rate, stated percentage 4.875%   4.875%   4.875%
Fixed Rate Reset Junior Subordinated notes due 2041 | Junior Subordinated Debt          
Debt Instrument [Line Items]          
Principal $ 125.0   $ 125.0    
Unamortized discount and debt issuance costs $ (1.7)   $ (1.7)    
Interest rate, stated percentage 6.625%   6.625% 6.625%  
v3.25.4
Long Term Debt and Preference Securities - Preference Securities Authorized Issued and Outstanding (Details) - $ / shares
12 Months Ended
Dec. 31, 2015
Dec. 31, 2025
Dec. 31, 2024
Debt Instrument [Line Items]      
Preferred stock, liquidation preference per share (in dollar per share)   $ 0.01 $ 0.01
Preferred stock, dividend rate, percentage 0.50%    
Preference Securities      
Debt Instrument [Line Items]      
Preference securities, authorized (in shares)   0 1,000,000
Preference securities, issued (in shares)   0 5,835
Preference securities, outstanding (in shares)   0 5,835
Preferred stock, dividend rate, percentage 9.00%    
v3.25.4
Commitments and Contingencies - Letters of Credit (Details) - Standby Letters of Credit - Line of Credit - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Line of Credit Facility [Line Items]    
Commitment $ 480.0 $ 475.0
In Use 179.0 276.0
Letters of credit outstanding, amount $ 177.1 216.1
Minimum    
Line of Credit Facility [Line Items]    
Debt instrument, term 1 year  
Maximum    
Line of Credit Facility [Line Items]    
Debt instrument, term 3 years  
Lloyds Bank plc    
Line of Credit Facility [Line Items]    
Commitment $ 135.0 125.0
In Use 60.8 78.0
Letters of credit outstanding, amount 57.2 68.5
Citibank N.A. London branch    
Line of Credit Facility [Line Items]    
Commitment 70.0 70.0
In Use 28.4 42.9
Letters of credit outstanding, amount 32.7 46.9
Barclays Bank plc    
Line of Credit Facility [Line Items]    
Commitment 135.0 140.0
In Use 43.8 83.2
Letters of credit outstanding, amount 35.3 54.5
Bank of Montreal    
Line of Credit Facility [Line Items]    
Commitment 140.0 140.0
In Use 46.0 71.9
Letters of credit outstanding, amount 51.9 46.2
Unsecured | Lloyds Bank plc    
Line of Credit Facility [Line Items]    
Commitment 20.0 25.0
In Use 8.8 19.9
Unsecured | Barclays Bank plc    
Line of Credit Facility [Line Items]    
Commitment 20.0 60.0
In Use 11.8 52.2
Unsecured | Bank of Montreal    
Line of Credit Facility [Line Items]    
Commitment 40.0 40.0
In Use 8.3 30.7
Secured | Lloyds Bank plc    
Line of Credit Facility [Line Items]    
Commitment 115.0 100.0
In Use 52.0 58.1
Secured | Citibank N.A. London branch    
Line of Credit Facility [Line Items]    
Commitment 70.0 70.0
In Use 28.4 42.9
Secured | Barclays Bank plc    
Line of Credit Facility [Line Items]    
Commitment 115.0 80.0
In Use 32.0 31.0
Secured | Bank of Montreal    
Line of Credit Facility [Line Items]    
Commitment 100.0 100.0
In Use 37.7 $ 41.2
Ancillary own funds | Lloyds Bank plc    
Line of Credit Facility [Line Items]    
Commitment 65.0  
Ancillary own funds | Barclays Bank plc    
Line of Credit Facility [Line Items]    
Commitment 65.0  
Ancillary own funds | Bank of Montreal    
Line of Credit Facility [Line Items]    
Commitment 60.0  
Uncommitted Tranche | Citibank N.A. London branch    
Line of Credit Facility [Line Items]    
Commitment $ 200.0  
v3.25.4
Commitments and Contingencies - Concentration of Credit Risk (Details) - Reinsurer Concentration Risk - Reinsurance Recoverable for Paid and Unpaid Claims and Claims Adjustments
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Aon plc      
Concentration Risk [Line Items]      
Concentration risk percentage 19.00% 13.00% 13.00%
Marsh & McLennan Companies Inc      
Concentration Risk [Line Items]      
Concentration risk percentage 16.00% 20.00% 18.00%
v3.25.4
Commitments and Contingencies - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]      
Lessee, operating lease, remaining lease term 8 years 2 months 12 days    
Operating lease, expense $ 2.1 $ 2.0 $ 1.5
Operating lease, payments $ 2.6 $ 1.0 $ 0.9
v3.25.4
Commitments and Contingencies - Operating Lease Right-of-use Assets and Lease Liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Commitments and Contingencies Disclosure [Abstract]    
Operating leases right-of-use assets $ 9.8 $ 11.1
Operating lease, right-of-use asset, statement of financial position Other assets Other assets
Operating lease liabilities $ 12.4 $ 13.0
Operating lease, liability, statement of financial position Other liabilities Other liabilities
Weighted-average remaining lease term (years) 6 years 4 months 24 days 7 years 2 months 12 days
Weight-average discount rate 10.80% 10.80%
v3.25.4
Commitments and Contingencies - Future Minimum Rental Commitments (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Commitments and Contingencies Disclosure [Abstract]    
2026 $ 3.0  
2027 2.9  
2028 2.6  
2029 2.3  
2030 2.3  
2031 and thereafter 3.7  
Total future annual minimum lease payments 16.8  
Less: present value discount (4.4)  
Total lease liability at December 31, 2025 $ 12.4 $ 13.0
v3.25.4
Related Party Transactions - Narrative (Details)
$ in Millions
12 Months Ended
Dec. 20, 2022
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Jan. 03, 2023
Related Party Transaction [Line Items]          
Reinsurance, profit commission, percentage   0.200      
Reinsurance, profit commission, hurdle rate of return, percentage   0.050      
Related Party          
Related Party Transaction [Line Items]          
Other receivables   $ 174.8 $ 208.9    
Amounts due to The Fidelis Partnership   $ 457.7 385.8    
Framework Agreement | Related Party          
Related Party Transaction [Line Items]          
Related party transaction, agreement duration 10 years        
Reinsurance, ceded commission, percentage   0.115      
Property management fee, percent fee   3.00%      
Other receivables   $ 174.8 208.9    
Amounts due to The Fidelis Partnership   457.7 385.8    
Insurance commissions   115.9 104.8 $ 54.4  
Payments for commissions   27.5 68.6 31.6  
Framework Agreement | Related Party | Policy Acquisition Expenses          
Related Party Transaction [Line Items]          
Insurance commissions   53.4 51.6 15.9  
Framework Agreement | Related Party | General and Administrative Expense          
Related Party Transaction [Line Items]          
Costs and expenses, related party   $ 4.5 $ 6.5 $ 5.6  
Framework Agreement | Related Party | Third Party Managing General Underwriters          
Related Party Transaction [Line Items]          
Reinsurance, ceded commission, percentage   0.030      
Group | Fidelis MGU          
Related Party Transaction [Line Items]          
Subsidiary, ownership percentage, noncontrolling owner         9.90%
Group | Framework Agreement | Related Party | Fidelis MGU          
Related Party Transaction [Line Items]          
Subsidiary, ownership percentage, noncontrolling owner         9.90%
v3.25.4
Related Party Transactions - Summary of Commissions (Details) - Related Party - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Related Party Transaction [Line Items]      
Ceding commission expense $ 325.0 $ 311.1 $ 166.2
Profit commission expense 3.8 0.0 59.1
Total commissions $ 328.8 $ 311.1 $ 225.3
v3.25.4
Statutory Requirements and Dividend Restrictions - Statutory Requirements (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Bermuda    
Effects of Reinsurance [Line Items]    
Required statutory capital and surplus $ 1,095.0 $ 910.0
Actual statutory capital and surplus 2,220.0 1,830.0
United Kingdom    
Effects of Reinsurance [Line Items]    
Required statutory capital and surplus 535.0 540.0
Actual statutory capital and surplus 1,055.0 950.0
Republic of Ireland    
Effects of Reinsurance [Line Items]    
Required statutory capital and surplus 95.0 100.0
Actual statutory capital and surplus $ 165.0 $ 175.0
v3.25.4
Statutory Requirements and Dividend Restrictions - Statutory Net Income (Loss) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Bermuda      
Effects of Reinsurance [Line Items]      
Statutory net income (loss) $ 158.3 $ 67.3 $ 345.2
United Kingdom      
Effects of Reinsurance [Line Items]      
Statutory net income (loss) 162.9 115.0 68.1
Republic of Ireland      
Effects of Reinsurance [Line Items]      
Statutory net income (loss) $ (8.4) $ (3.8) $ 19.3
v3.25.4
Statutory Requirements and Dividend Restrictions - Narrative (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Insurance [Abstract]    
Statutory accounting practices, statutory amount available for dividend payments $ 439.2 $ 441.0
v3.25.4
Earnings Per Share (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Earnings per common share      
Net income available to common shareholders $ 225.5 $ 113.3 $ 2,132.5
Weighted average basic common shares outstanding (in shares) 106,158,800 115,218,380 114,313,971
Earnings per common share (in dollars per share) $ 2.12 $ 0.98 $ 18.65
Earnings per diluted common share      
Share-based compensation plans (in shares) 582,248 408,801 10,712
Weighted average diluted common shares outstanding (in shares) 106,741,048 115,627,181 114,324,683
Earnings per diluted common share (in dollars per share) $ 2.11 $ 0.98 $ 18.65
v3.25.4
Share Capital Authorized and Issued - Common Shares Information (Details) - $ / shares
Dec. 31, 2025
Dec. 31, 2024
Equity [Abstract]    
Common stock, shares authorized (in shares) 600,000,000 600,000,000
Common stock, shares, outstanding (in shares) 96,651,534 111,730,209
Common stock, shares, issued (in shares) 96,651,534 111,730,209
Common stock, par or stated value per share (in dollars per share) $ 0.01 $ 0.01
v3.25.4
Share Capital Authorized and Issued - Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2025
Sep. 30, 2025
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Aug. 06, 2025
Capital Unit [Line Items]                
Common stock dividends per share declared (in dollars per share) $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.50 $ 0.40    
Common shares repurchased (in shares)         15,184,976 6,570,003 0  
Cost of shares repurchased, inclusive of commissions         $ 261.4 $ 105.5 $ 0.0  
Unutilized amount of the share repurchase authorization $ 49.4       $ 49.4      
Program                
Capital Unit [Line Items]                
Stock repurchase program, authorized amount               $ 200.0
CVC Falcon Holdings Limited                
Capital Unit [Line Items]                
Common shares repurchased (in shares)         7,185,178      
Cost of shares repurchased, inclusive of commissions         $ 125.0      
Fidelis Partnership                
Capital Unit [Line Items]                
Common shares repurchased (in shares)         1,487,359 577,383 0  
Cost of shares repurchased, inclusive of commissions         $ 25.6 $ 9.3 $ 0.0  
Repurchase mechanism percentage         9.8752%      
Retained earnings                
Capital Unit [Line Items]                
Dividends, common stock, cash         $ (53.2) $ (46.3) $ 0.0  
v3.25.4
Share Capital Authorized and Issued - Common Shares Repurchased (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Equity [Abstract]      
Common shares repurchased (in shares) 15,184,976 6,570,003 0
Cost of shares repurchased, inclusive of commissions $ 261.4 $ 105.5 $ 0.0
Weighted average price per share, inclusive of commissions (in dollars per share) $ 17.22 $ 16.06 $ 0
v3.25.4
Share Compensation and Employee Benefit Plans - Narrative (Details) - USD ($)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
May 15, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Income tax benefit $ 3,000,000.0 $ 1,500,000 $ 300,000  
Share-based payment arrangement, amount capitalized $ 0 $ 0    
Vesting period 1 year      
Expected volatility percentage 35.00% 35.90%    
Risk free rate of percentage 4.20% 4.40%    
Defined contribution plan, cost $ 1,800,000 $ 1,600,000 1,200,000  
Share-Based Payment Arrangement, Tranche One        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Share-award vesting rights, percentage 25.00%      
Share-Based Payment Arrangement, Tranche Two        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Share-award vesting rights, percentage 25.00%      
Share-Based Payment Arrangement, Tranche Three        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Share-award vesting rights, percentage 50.00%      
Restricted Share Units        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Vesting period 3 years      
Share-based compensation arrangement by share-based payment award, equity instruments other than options, outstanding, weighted average remaining contractual terms   1 year 9 months 18 days    
Performance Share Units Without Market Conditions        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Share-based compensation arrangement by share-based payment award, equity instruments other than options, outstanding, weighted average remaining contractual terms 1 year 9 months 18 days      
Performance Share Units Without Market Conditions | Minimum        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Share-award vesting rights, percentage 0.00%      
Performance Share Units Without Market Conditions | Maximum        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Share-award vesting rights, percentage 200.00%      
Performance Shares Units With Market Conditions        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Share-based compensation arrangement by share-based payment award, equity instruments other than options, outstanding, weighted average remaining contractual terms 1 year 8 months 12 days      
Performance Shares Units With Market Conditions | Minimum        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Share-award vesting rights, percentage 0.00%      
Performance Shares Units With Market Conditions | Maximum        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Share-award vesting rights, percentage 200.00%      
2023 Plan        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Common stock, capital shares reserved for future issuance (in shares)       4,913,119
Common stock, capital, remaining shares reserved for future issuance (in shares) 2,437,367      
Share-based payment arrangement, amount capitalized $ 12,500,000 $ 9,800,000    
Fair value of awards 2,100,000 6,400,000 0  
2023 Plan | General and Administrative Expense        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Share-based payment arrangement, expense $ 7,900,000 $ 7,800,000 6,500,000  
2015 And 2018 Plan | Investment Company, Dividend Distribution        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Share-based payment arrangement, expense     $ 21,000,000.0  
v3.25.4
Share Compensation and Employee Benefit Plans - Summary of Share Compensation Activity (Details)
12 Months Ended
Dec. 31, 2025
$ / shares
shares
Restricted Share Units  
Number of shares  
Beginning balance (in shares) | shares 555,230
Granted (in shares) | shares 598,051
Vested (in shares) | shares (96,249)
Forfeited (in shares) | shares (66,201)
Ending balance (in shares) | shares 990,831
Weighted average grant date fair value  
Beginning balance (in dollars per share) | $ / shares $ 14.18
Granted (in dollars per share) | $ / shares 15.58
Vested (in dollars per share) | $ / shares 14.33
Forfeited (in dollars per share) | $ / shares 14.87
Ending balance (in dollars per share) | $ / shares $ 14.96
Performance Share Units Without Market Conditions  
Number of shares  
Beginning balance (in shares) | shares 472,211
Granted (in shares) | shares 161,475
Vested (in shares) | shares (20,571)
Forfeited (in shares) | shares (43,665)
Ending balance (in shares) | shares 569,450
Weighted average grant date fair value  
Beginning balance (in dollars per share) | $ / shares $ 13.53
Granted (in dollars per share) | $ / shares 15.36
Vested (in dollars per share) | $ / shares 12.93
Forfeited (in dollars per share) | $ / shares 14.49
Ending balance (in dollars per share) | $ / shares $ 14.00
Performance Shares Units With Market Conditions  
Number of shares  
Beginning balance (in shares) | shares 188,096
Granted (in shares) | shares 216,636
Vested (in shares) | shares 0
Forfeited (in shares) | shares (35,432)
Ending balance (in shares) | shares 369,300
Weighted average grant date fair value  
Beginning balance (in dollars per share) | $ / shares $ 14.22
Granted (in dollars per share) | $ / shares 14.93
Vested (in dollars per share) | $ / shares 0
Forfeited (in dollars per share) | $ / shares 14.08
Ending balance (in dollars per share) | $ / shares $ 14.17
v3.25.4
Income Taxes - Net Income Before Tax Split (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Income Tax Examination [Line Items]      
Income before income taxes $ 275.6 $ 136.4 $ 2,047.2
United Kingdom      
Income Tax Examination [Line Items]      
Income before income taxes 134.1 76.1 1,687.4
Bermuda      
Income Tax Examination [Line Items]      
Income before income taxes 152.6 67.0 341.2
Republic of Ireland      
Income Tax Examination [Line Items]      
Income before income taxes $ (11.1) $ (6.7) $ 18.6
v3.25.4
Income Taxes - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 11, 2025
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Income Tax Examination [Line Items]        
Deferred tax benefit, Bermuda economic transition adjustment   $ (23.5)    
Pillar Two top-up tax (expense)/benefit $ 21.4 21.4 $ 4.5 $ 0.0
Net operating loss carryforwards   5.0 27.5  
Valuation allowance   (2.2) (2.2)  
Net deferred tax asset   $ 105.7 118.9 90.0
Electronic transfer account, deferred tax asset expected utilization period   15 years    
Unrecognized tax benefits that would impact effective tax rate   $ 75.0 75.0 $ 75.0
United Kingdom        
Income Tax Examination [Line Items]        
Net operating loss carryforwards   14.9 98.5  
Republic of Ireland        
Income Tax Examination [Line Items]        
Net operating loss carryforwards   $ 10.6 $ 5.5  
v3.25.4
Income Taxes - Group Income Tax Expense (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 11, 2025
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Income Tax Disclosure [Abstract]        
Current tax (expense)/benefit (excluding Pillar Two top-up tax)   $ (19.8) $ (8.8) $ (1.2)
Deferred tax (expense)/benefit (excluding rate change)   (8.9) (9.8) 86.2
Rate change on deferred tax   0.0 0.0 0.3
Pillar Two top-up tax (expense)/benefit $ (21.4) (21.4) (4.5) 0.0
Income tax (expense)/benefit   $ (50.1) $ (23.1) $ 85.3
v3.25.4
Income Taxes - Income Tax Allocated to Comprehensive Income (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Income Tax Disclosure [Abstract]      
Income tax (expense)/benefit allocated to net income $ (50.1) $ (23.1) $ 85.3
Income tax (expense)/benefit allocated to other comprehensive income (9.2) (2.8) (9.7)
Total income tax (expense)/benefit allocated to comprehensive income $ (59.3) $ (25.9) $ 75.6
v3.25.4
Income Taxes - Components of Income Tax (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Income Tax Examination [Line Items]      
Income/(loss) before income taxes $ 275.6 $ 136.4 $ 2,047.2
Current tax (expense) (41.2) (13.3) (1.2)
Deferred tax (expense)/benefit (excluding rate change) (8.9) (9.8) 86.5
Income tax (expense)/benefit (50.1) (23.1) 85.3
United Kingdom      
Income Tax Examination [Line Items]      
Income/(loss) before income taxes 134.1 76.1 1,687.4
Current tax (expense) (35.2) (13.3) 0.2
Deferred tax (expense)/benefit (excluding rate change) (22.4) (10.0) (3.8)
Income tax (expense)/benefit (57.6) (23.3) (3.6)
Bermuda      
Income Tax Examination [Line Items]      
Income/(loss) before income taxes 152.6 67.0 341.2
Current tax (expense) (6.7) 0.0 0.0
Deferred tax (expense)/benefit (excluding rate change) 12.4 0.0 90.0
Income tax (expense)/benefit 5.7 0.0 90.0
Republic of Ireland      
Income Tax Examination [Line Items]      
Income/(loss) before income taxes (11.1) (6.7) 18.6
Current tax (expense) 0.7 0.0 (1.4)
Deferred tax (expense)/benefit (excluding rate change) 1.1 0.2 0.3
Income tax (expense)/benefit $ 1.8 $ 0.2 $ (1.1)
v3.25.4
Income Taxes - Expected Income Tax Expense (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Amount      
Expected income tax (expense) at the weighted average U.K. income tax rate $ (68.9) $ (34.1) $ (481.6)
Reconciling items      
Non-taxable income / (expense) (1.6) (0.9) (1.9)
Cross-border tax laws (21.4) (4.5) 0.0
Net gain on distribution of The Fidelis Partnership not subject to income taxes 0.0 0.0 394.1
Changes in tax laws or rates 0.0 0.0 0.3
Adjustments in respect of prior periods (1.2) 1.1 1.1
Income tax (expense)/benefit $ (50.1) $ (23.1) $ 85.3
Percent      
Expected income tax (expense) at the weighted average U.K. income tax rate 25.00% 25.00% 23.50%
Non-taxable income / (expense) 0.60% 0.70% 0.10%
Cross-border tax laws 7.80% 3.30% 0.00%
Net gain on distribution of The Fidelis Partnership not subject to income taxes 0.00% 0.00% (19.30%)
Changes in tax laws or rates 0.00% 0.00% 0.00%
Adjustments in respect of prior periods 0.40% (0.80%) (0.10%)
Income tax (expense)/benefit 18.20% 16.90% (4.20%)
Bermuda      
Reconciling items      
Changes in tax laws or rates $ 23.5 $ 0.0 $ 90.0
Statutory income tax rate differential 15.3 16.8 80.2
Foreign tax credits $ 5.1 $ 0.0 $ 0.0
Percent      
Changes in tax laws or rates (8.50%) 0.00% (4.40%)
Foreign tax credits (1.90%) 0.00% 0.00%
Statutory income tax rate differential (5.60%) (12.30%) (3.90%)
Republic of Ireland      
Reconciling items      
Non-taxable income / (expense) $ (0.2) $ (0.6) $ (0.1)
Adjustments in respect of prior periods 0.7 (0.1) 1.2
Statutory income tax rate differential $ (1.4) $ (0.8) $ 2.0
Percent      
Non-taxable income / (expense) 0.10% 0.40% 0.00%
Adjustments in respect of prior periods (0.30%) 0.10% (0.10%)
Statutory income tax rate differential 0.50% 0.60% (0.10%)
v3.25.4
Income Taxes - Net Deferred Tax Asset (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Deferred tax assets:      
Intangible assets $ 94.0 $ 104.4  
Net operating loss carryforwards 5.0 27.5  
Other temporary differences 2.8 2.9  
Share-based compensation 3.2 2.4  
Reserves for losses and loss adjustment expenses 8.4 9.1  
Total deferred tax assets 113.4 146.3  
Deferred tax liabilities:      
Deferred policy acquisition costs 0.0 (23.5)  
Fixed assets (1.1) (1.7)  
Fixed maturity securities, available-for-sale 4.4 0.0  
Total deferred tax liabilities (5.5) (25.2)  
Valuation allowance (2.2) (2.2)  
Net deferred tax asset $ 105.7 $ 118.9 $ 90.0
v3.25.4
Income Taxes - Corporate Income Taxes Paid Net of Refunds (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Effective Income Tax Rate Reconciliation [Line Items]      
Total income tax paid net of refunds $ 26.7 $ 5.6 $ 14.7
United Kingdom      
Effective Income Tax Rate Reconciliation [Line Items]      
Income tax paid, foreign, after refund received 24.5 2.3 14.7
Bermuda      
Effective Income Tax Rate Reconciliation [Line Items]      
Income tax paid, foreign, after refund received 2.2 0.0 0.0
Republic of Ireland      
Effective Income Tax Rate Reconciliation [Line Items]      
Income tax paid, foreign, after refund received $ 0.0 $ 3.3 $ 0.0
v3.25.4
Income Taxes - Unrecognized Tax Benefits (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Unrecognized Tax Benefits [Roll Forward]      
Balance, beginning of year $ 75.0 $ 75.0 $ 0.0
Additions based on tax positions related to the current year 0.0 0.0 75.0
Balance, end of year $ 75.0 $ 75.0 $ 75.0
v3.25.4
Separation Transactions (Details) - USD ($)
$ in Millions
12 Months Ended
Jan. 03, 2023
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Related Party Transaction [Line Items]        
Share-based payment arrangement, accelerated cost       $ 21.0
Accrued payroll taxes       17.3
Stock issued during period, shares, new issues (in shares) 13,553,681      
Share-based payment arrangement, decrease for tax withholding obligation $ 50.6      
Cumulative dividends 34.1      
Common stock, shares, issued (in shares)   96,651,534 111,730,209  
Common stock, shares, outstanding (in shares)   96,651,534 111,730,209  
Accrued professional fees       28.6
Revaluation of the fidelis partnership $ 1,707.1 $ 0.0 $ 0.0 $ 1,707.1
Group | Fidelis MGU        
Related Party Transaction [Line Items]        
Subsidiary, ownership percentage, noncontrolling owner 9.90%      
Consolidation, less than wholly owned subsidiary, parent ownership interest, changes, sale of interest by parent $ 1,775.0      
Accrued payroll taxes 17.3      
Noncontrolling interest, decrease from redemptions or purchase of interests $ 67.9      
Stock repurchased and retired during period (in shares) 97,327,049      
Common stock, shares, issued (in shares) 110,771,897      
Common stock, shares, outstanding (in shares) 110,771,897      
Accrued professional fees $ 28.6      
Consolidation, less than wholly owned subsidiary, parent ownership interest, changes, net 1,639.1      
Consolidation, less than wholly owned subsidiary, parent ownership interest, changes, additional interest issued to parent 68.0      
Deferred compensation arrangement with individual, compensation expense 21.0      
Group | Fidelis MGU | Minimum        
Related Party Transaction [Line Items]        
Consolidation, less than wholly owned subsidiary, parent ownership interest, changes, sale of interest by parent 1,700.0      
Group | Fidelis MGU | Maximum        
Related Party Transaction [Line Items]        
Consolidation, less than wholly owned subsidiary, parent ownership interest, changes, sale of interest by parent $ 1,900.0      
v3.25.4
Subsequent Events (Details) - USD ($)
$ / shares in Units, $ in Millions
2 Months Ended 12 Months Ended
Mar. 03, 2026
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Feb. 20, 2026
Subsequent Event [Line Items]          
Common shares repurchased (in shares)   15,184,976 6,570,003 0  
Cost of shares repurchased, inclusive of commissions   $ 261.4 $ 105.5 $ 0.0  
Weighted average price per share, inclusive of commissions (in dollars per share)   $ 17.22 $ 16.06 $ 0  
Unutilized amount of the share repurchase authorization   $ 49.4      
CVC Falcon Holdings Limited          
Subsequent Event [Line Items]          
Common shares repurchased (in shares)   7,185,178      
Cost of shares repurchased, inclusive of commissions   $ 125.0      
Subsequent Event          
Subsequent Event [Line Items]          
Stock repurchase program, authorized amount $ 217.7       $ 400.0
Common shares repurchased (in shares) 10,561,467        
Cost of shares repurchased, inclusive of commissions $ 200.8        
Weighted average price per share, inclusive of commissions (in dollars per share) $ 19.01        
Subsequent Event | Fidelis MGU          
Subsequent Event [Line Items]          
Common shares repurchased (in shares) 942,014        
Cost of shares repurchased, inclusive of commissions $ 17.9        
Subsequent Event | CVC Falcon Holdings Limited          
Subsequent Event [Line Items]          
Common shares repurchased (in shares) 8,597,170        
Cost of shares repurchased, inclusive of commissions $ 163.3        
Weighted average price per share, inclusive of commissions (in dollars per share) $ 19.00        
v3.25.4
SCHEDULE II - Condensed Financial Information of Registrant - Balance Sheets (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Assets    
Cash and cash equivalents $ 873.0 $ 743.0
Other assets 272.7 176.9
Total assets 12,443.8 11,765.9
Liabilities    
Long term debt 843.2 448.9
Other liabilities 91.8 98.0
Total liabilities 10,044.2 9,317.5
Shareholders' equity    
Common shares ($0.01 par, issued and outstanding: 96,651,534, 2024: 111,730,209) 1.0 1.2
Common shares held in treasury, at cost (shares held: nil, 2024: 6,570,003) 0.0 (105.5)
Additional paid-in capital 1,685.6 2,044.6
Accumulated other comprehensive income 37.1 4.5
Retained earnings 675.9 503.6
Total shareholders' equity 2,399.6 2,448.4
Total liabilities and shareholders' equity 12,443.8 11,765.9
Parent Company    
Assets    
Investments in subsidiaries 3,097.7 2,809.4
Cash and cash equivalents 141.1 54.8
Amounts due from subsidiaries 44.5 81.4
Other assets 10.0 31.9
Total assets 3,293.3 2,977.5
Liabilities    
Amounts due to subsidiaries 14.2 7.6
Long term debt 843.2 448.9
Preference securities 0.0 58.4
Other liabilities 36.3 14.2
Total liabilities 893.7 529.1
Shareholders' equity    
Common shares ($0.01 par, issued and outstanding: 96,651,534, 2024: 111,730,209) 1.0 1.2
Common shares held in treasury, at cost (shares held: nil, 2024: 6,570,003) 0.0 (105.5)
Additional paid-in capital 1,685.6 2,044.6
Accumulated other comprehensive income 37.1 4.5
Retained earnings 675.9 503.6
Total shareholders' equity 2,399.6 2,448.4
Total liabilities and shareholders' equity $ 3,293.3 $ 2,977.5
v3.25.4
SCHEDULE II - Condensed Financial Information of Registrant - Balance Sheets Additional (Details) - $ / shares
Dec. 31, 2025
Dec. 31, 2024
Condensed Financial Information Disclosure [Abstract]    
Common stock, par or stated value per share (in dollars per share) $ 0.01 $ 0.01
Common stock, shares, issued (in shares) 96,651,534 111,730,209
Common stock, shares, outstanding (in shares) 96,651,534 111,730,209
Treasury stock, common, shares (in shares) 0 6,570,003
v3.25.4
SCHEDULE II - Condensed Financial Information of Registrant - Statements of Income and Comprehensive Income (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Revenues      
Net investment income $ 206.8 $ 161.9 $ 124.4
Other income 0.0 0.0 0.1
Total revenues before net gain on distribution of The Fidelis Partnership 2,500.5 2,420.0 1,957.1
Net gain on distribution of The Fidelis Partnership 0.0 0.0 1,639.1
Total revenues 2,500.5 2,420.0 3,596.2
Expenses      
General and administrative expenses 96.6 94.3 82.7
Corporate and other expenses 1.2 1.6 4.1
Financing costs 47.7 33.8 35.5
Income before income taxes 275.6 136.4 2,047.2
Income tax (expense)/benefit (50.1) (23.1) 85.3
Net income before equity in net income of subsidiaries 225.5 113.3 2,132.5
Other comprehensive income      
Unrealized gains on available-for-sale investments 46.4 9.6 81.7
Reclassification of net realized losses/(gains) recognized in net income (4.6) 24.7 0.7
Income tax expense, all of which relates to unrealized gains on available-for-sale investments (9.2) (2.8) (9.7)
Total other comprehensive income 32.6 31.5 72.7
Comprehensive income attributable to common shareholders 258.1 144.8 2,205.2
Parent Company      
Revenues      
Net investment income 7.1 3.7 4.9
Dividends from subsidiaries 150.0 200.0 110.0
Other income 6.2 9.0 8.3
Total revenues before net gain on distribution of The Fidelis Partnership 163.3 212.7 123.2
Net gain on distribution of The Fidelis Partnership 0.0 0.0 1,670.8
Total revenues 163.3 212.7 1,794.0
Expenses      
General and administrative expenses 44.1 42.8 35.3
Corporate and other expenses 1.2 1.6 3.2
Financing costs 45.2 30.5 30.5
Net foreign exchange losses 0.1 0.0 3.7
Total expenses 90.6 74.9 72.7
Income before income taxes 72.7 137.8 1,721.3
Income tax (expense)/benefit (2.8) 10.0 14.1
Net income before equity in net income of subsidiaries 225.5 113.3 2,132.5
Equity in net income/(loss) of subsidiaries 155.6 (34.5) 397.1
Net income available to common shareholders 69.9 147.8 1,735.4
Other comprehensive income      
Unrealized gains on available-for-sale investments 46.4 9.6 81.7
Reclassification of net realized losses/(gains) recognized in net income (4.6) 24.7 0.7
Income tax expense, all of which relates to unrealized gains on available-for-sale investments (9.2) (2.8) (9.7)
Total other comprehensive income 32.6 31.5 72.7
Comprehensive income attributable to common shareholders $ 258.1 $ 144.8 $ 2,205.2
v3.25.4
SCHEDULE II - Condensed Financial Information of Registrant - Statements of Cash Flow (Details) - USD ($)
$ in Millions
12 Months Ended
Jan. 03, 2023
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Condensed Cash Flow Statements, Captions [Line Items]        
Net income before equity in net income of subsidiaries   $ 225.5 $ 113.3 $ 2,132.5
Adjustments to reconcile net income/(loss) after tax to net cash provided by/(used in) operating activities:        
Revaluation of The Fidelis Partnership $ (1,707.1) 0.0 0.0 (1,707.1)
Share compensation expense   7.9 7.8 27.6
Accretion, amortization and depreciation   (19.2) (14.0) 0.3
Deferred tax expense/(benefit)   8.9 9.8 (86.5)
Net changes in assets and liabilities:        
Amounts due from The Fidelis Partnership   38.6 (37.6) (176.2)
Amounts due to/from subsidiaries   59.7 56.8 334.0
Other assets   (103.6) (10.9) 34.6
Other liabilities   (23.7) 31.1 16.6
Net cash provided by/(used in) operating activities   (408.3) 618.2 495.2
Investing activities        
Net cash provided by/(used in) investing activities   682.7 (475.8) (834.9)
Financing activities        
Dividends on common shares   (52.3) (46.2) 0.0
Repurchase of common shares   (261.4) (105.5) 0.0
Tax paid on withholding shares   (0.2) (2.2) (50.6)
Proceeds from issuance of debt, net of issuance costs   393.3 0.0 0.0
Repurchase of preferred securities   (59.6) 0.0 0.0
Proceeds from issuance of common shares, net of issuance costs   0.0 0.0 89.4
Cumulative dividends on warrants   0.0 0.0 (34.1)
Net cash provided by/(used in) financing activities   19.8 (153.9) (106.9)
Net increase/(decrease) in cash, restricted cash, and cash equivalents   301.0 (17.5) (443.8)
Cash, restricted cash, and cash equivalents, beginning of year   946.6 964.1 1,407.9
Cash, restricted cash, and cash equivalents, end of year   1,247.6 946.6 964.1
Parent Company        
Condensed Cash Flow Statements, Captions [Line Items]        
Net income before equity in net income of subsidiaries   225.5 113.3 2,132.5
Adjustments to reconcile net income/(loss) after tax to net cash provided by/(used in) operating activities:        
Revaluation of The Fidelis Partnership   0.0 0.0 (1,707.1)
Equity in net (income)/loss of subsidiaries   (155.6) 34.5 (397.1)
Share compensation expense   7.9 7.8 27.6
Accretion, amortization and depreciation   0.9 0.7 0.7
Deferred tax expense/(benefit)   23.1 9.6 2.6
Net changes in assets and liabilities:        
Amounts due from The Fidelis Partnership   0.0 0.2 (0.2)
Amounts due to/from subsidiaries   43.5 (63.8) (5.4)
Other assets   (1.2) 0.6 3.0
Other liabilities   22.4 1.1 11.9
Net cash provided by/(used in) operating activities   166.5 104.0 68.5
Investing activities        
Contributed capital to subsidiaries   (100.0) 0.0 (90.0)
Net cash provided by/(used in) investing activities   (100.0) 0.0 (90.0)
Financing activities        
Dividends on common shares   (52.3) (46.2) 0.0
Repurchase of common shares   (261.4) (105.5) 0.0
Proceeds from issuance of debt, net of issuance costs   393.3 0.0 0.0
Proceeds from issuance of common shares, net of issuance costs   0.0 0.0 89.4
Non-controlling interest share transactions   0.0 0.0 (6.1)
Net cash provided by/(used in) financing activities   19.8 (153.9) (1.4)
Net increase/(decrease) in cash, restricted cash, and cash equivalents   86.3 (49.9) (22.9)
Cash, restricted cash, and cash equivalents, beginning of year   54.8 104.7 127.6
Cash, restricted cash, and cash equivalents, end of year   $ 141.1 $ 54.8 $ 104.7
v3.25.4
SCHEDULE III - Supplementary Insurance Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]      
Deferred policy acquisition costs $ 1,085.0 $ 877.9 $ 786.6
Reserves for losses and loss adjustment expenses 2,607.1 3,134.3 2,448.9
Unearned premiums 4,384.8 3,651.5 3,149.5
Net premiums earned 2,293.7 2,258.1 1,832.6
Net investment income 184.0 190.5 119.5
Losses and loss adjustment expenses 1,089.8 1,155.8 698.8
Policy acquisition expenses 990.1 999.7 723.8
Other operating expenses 96.6 94.3 82.7
Net premiums written 3,008.6 2,394.6 2,136.6
Other      
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]      
Deferred policy acquisition costs 0.0 0.0 0.0
Reserves for losses and loss adjustment expenses 0.0 0.0 0.0
Unearned premiums 0.0 0.0 0.0
Net premiums earned 0.0 0.0 0.0
Net investment income 184.0 190.5 119.5
Losses and loss adjustment expenses 0.0 0.0 0.0
Policy acquisition expenses 328.8 311.1 225.3
Other operating expenses 96.6 94.3 82.7
Net premiums written 0.0 0.0 0.0
Insurance | Operating Segments      
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]      
Deferred policy acquisition costs 1,040.5 852.9 764.3
Reserves for losses and loss adjustment expenses 2,107.2 2,514.4 1,663.2
Unearned premiums 4,153.6 3,484.3 3,024.9
Net premiums earned 1,899.4 1,902.4 1,577.0
Net investment income 0.0 0.0 0.0
Losses and loss adjustment expenses 996.5 1,101.5 675.1
Policy acquisition expenses 557.6 604.6 429.1
Other operating expenses 0.0 0.0 0.0
Net premiums written 2,531.9 2,050.4 1,880.5
Reinsurance | Operating Segments      
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]      
Deferred policy acquisition costs 44.5 25.0 22.3
Reserves for losses and loss adjustment expenses 499.9 619.9 785.7
Unearned premiums 231.2 167.2 124.6
Net premiums earned 394.3 355.7 255.6
Net investment income 0.0 0.0 0.0
Losses and loss adjustment expenses 93.3 54.3 23.7
Policy acquisition expenses 103.7 84.0 69.4
Other operating expenses 0.0 0.0 0.0
Net premiums written $ 476.7 $ 344.2 $ 256.1
v3.25.4
SCHEDULE IV - Reinsurance (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]      
Direct premiums written $ 2,937.6 $ 2,928.1 $ 2,489.2
Ceded to other companies 1,709.0 2,008.5 1,442.4
Assumed from other companies 1,780.0 1,475.0 1,089.8
Net amount 3,008.6 2,394.6 2,136.6
Insurance | Operating Segments      
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]      
Direct premiums written 2,928.7 2,926.0 2,488.6
Ceded to other companies 1,224.4 1,488.1 1,079.9
Assumed from other companies 827.6 612.5 471.8
Net amount $ 2,531.9 $ 2,050.4 $ 1,880.5
Percentage of amount assumed to net 32.70% 29.90% 25.10%
Reinsurance | Operating Segments      
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]      
Direct premiums written $ 8.9 $ 2.1 $ 0.6
Ceded to other companies 484.6 520.4 362.5
Assumed from other companies 952.4 862.5 618.0
Net amount $ 476.7 $ 344.2 $ 256.1
Percentage of amount assumed to net 199.80% 250.60% 241.30%
v3.25.4
SCHEDULE VI - Supplementary Information for Property-Casualty Insurance Operations (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters [Abstract]      
Deferred policy acquisition costs $ 1,085.0 $ 877.9 $ 786.6
Reserves for losses and loss adjustment expenses 2,607.1 3,134.3 2,448.9
Unearned premiums 4,384.8 3,651.5 3,149.5
Net premiums earned 2,293.7 2,258.1 1,832.6
Net investment income 184.0 190.5 119.5
Loss and loss expenses incurred related to current year (1,092.8) (1,031.2) (761.7)
Loss and loss expenses incurred related to prior year 3.0 (124.6) 62.9
Policy acquisition expenses 990.1 999.7 723.8
Net paid losses and loss expenses 1,582.7 595.2 439.5
Net premiums written $ 3,008.6 $ 2,394.6 $ 2,136.6