IRONWOOD PHARMACEUTICALS INC, 10-K filed on 3/31/2025
Annual Report
v3.25.1
Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2024
Feb. 28, 2025
Jun. 28, 2024
Cover [Abstract]      
Entity Central Index Key 0001446847    
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2024    
Document Transition Report false    
Securities Act File Number 001-34620    
Entity Registrant Name IRONWOOD PHARMACEUTICALS, INC.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 04-3404176    
Entity Address, Address Line One 100 Summer Street    
Entity Address, Address Line Two Suite 2300    
Entity Address, City or Town Boston    
Entity Address, State or Province MA    
Entity Address, Postal Zip Code 02110    
City Area Code 617    
Local Phone Number 621-7722    
Title of 12(b) Security Class A Common Stock, $0.001 par value    
Entity Listing, Par Value Per Share $ 0.001    
Trading Symbol IRWD    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
ICFR Auditor Attestation Flag true    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 916,974,495
Entity Common Stock, Shares Outstanding   161,809,432  
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2024    
Document Fiscal Period Focus FY    
Amendment Flag false    
Auditor Name Ernst & Young LLP    
Auditor Firm ID 42    
Auditor Location Boston, Massachusetts    
v3.25.1
Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Current assets:    
Cash and cash equivalents $ 88,559 $ 92,154
Accounts receivable, net 81,886 129,122
Prepaid expenses and other current assets 11,923 12,012
Total current assets 182,368 233,288
Property and equipment, net 4,495 5,585
Operating lease right-of-use assets 11,028 12,586
Intangible assets, net 2,860 3,682
Deferred tax assets 144,234 212,324
Other assets 5,923 3,608
Total assets 350,908 471,073
Current liabilities:    
Accounts payable 2,127 7,830
Accrued research and development costs 6,681 21,331
Accrued expenses and other current liabilities 26,849 44,254
Current portion of operating lease liabilities 3,189 3,126
Current portion of convertible senior notes   199,560
Total current liabilities 38,846 276,101
Convertible senior notes, net of current portion 198,988 198,309
Operating lease obligations, net of current portion 12,304 14,543
Revolving credit facility 385,000 300,000
Other liabilities 17,105 28,415
Commitments and contingencies
Stockholders' deficit:    
Preferred stock, $0.001 par value, 75,000,000 shares authorized, no shares issued and outstanding
Class A Common Stock, $0.001 par value, 500,000,000 shares authorized and 160,205,899 shares issued and outstanding at December 31, 2024 and 500,000,000 shares authorized and 156,354,238 shares issued and outstanding at December 31, 2023 160 156
Additional paid-in capital 1,395,317 1,355,195
Accumulated deficit (1,697,735) (1,698,615)
Accumulated other comprehensive loss 923 (3,031)
Total stockholders' deficit (301,335) (346,295)
Total liabilities and stockholders' deficit $ 350,908 $ 471,073
v3.25.1
Consolidated Balance Sheets (Parenthetical) - $ / shares
Dec. 31, 2024
Dec. 31, 2023
Preferred stock    
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized 75,000,000 75,000,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Common stock    
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, shares authorized 500,000,000 500,000,000
Common stock, shares issued 160,205,899 156,354,238
Common stock, shares outstanding 160,205,899 156,354,238
v3.25.1
Consolidated Statements of Income (Loss) - USD ($)
shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Revenues:      
Total revenues $ 351,410 $ 442,735 $ 410,596
Revenue from Contract with Customer, Product and Service Collaborative arrangements revenue Collaborative arrangements revenue Collaborative arrangements revenue
Costs and expenses:      
Research and development $ 111,421 $ 116,085 $ 44,265
Selling, general and administrative 144,272 158,314 115,994
Restructuring 2,593 18,317  
Acquired in-process research and development   1,095,449  
Total costs and expenses 258,286 1,388,165 160,259
Income (loss) from operations 93,124 (945,430) 250,337
Other income (expense):      
Interest expense and other financing costs (33,034) (21,629) (7,598)
Interest and investment income 4,468 18,971 9,501
Gain on derivatives   19 182
Other 640    
Other income (expense), net (27,926) (2,639) 2,085
Income (loss) before income taxes 65,198 (948,069) 252,422
Income tax expense (64,318) (83,490) (77,357)
Net income (loss) 880 (1,031,559) 175,065
Less: Net loss attributable to noncontrolling interests   (29,320)  
Net income (loss) attributable to Ironwood Pharmaceuticals, Inc. $ 880 $ (1,002,239) $ 175,065
Net income (loss) per share attributable to Ironwood Pharmaceuticals, Inc. stockholders - basic (in dollars per share) $ 0.01 $ (6.45) $ 1.13
Net income (loss) per share attributable to Ironwood Pharmaceuticals, Inc. stockholders - diluted (in dollars per share) $ 0.01 $ (6.45) $ 0.96
Weighted average shares used in computing net income (loss) per share attributable to Ironwood Pharmaceuticals, Inc. stockholders - basic (in shares) 159,083 155,435 154,366
Weighted average shares used in computing net income (loss) per share attributable to Ironwood Pharmaceuticals, Inc. stockholders - diluted (in shares) 160,084 155,435 186,312
v3.25.1
Consolidated Statements of Comprehensive Income (Loss) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Net income (loss)    
Net Income (Loss) $ 880 $ (1,002,239)
Other comprehensive income (loss), net of tax:    
Currency translation adjustment 2,901 (2,093)
Defined benefit pension plan 1,053 (938)
Total other comprehensive income (loss), net of tax 3,954 (3,031)
Less: Other comprehensive loss attributable to noncontrolling interest   (63)
Comprehensive income (loss) attributable to Ironwood Pharmaceuticals, Inc. $ 4,834 $ (1,005,207)
v3.25.1
Consolidated Statements of Stockholders' Equity (Deficit) - USD ($)
$ in Thousands
Ironwood Pharmaceuticals, Inc. stockholders' equity (deficit)
Cumulative Effect, Period of Adoption, Adjustment
Ironwood Pharmaceuticals, Inc. stockholders' equity (deficit)
Common Stock
Additional paid-in capital
Cumulative Effect, Period of Adoption, Adjustment
Additional paid-in capital
Accumulated deficit
Cumulative Effect, Period of Adoption, Adjustment
Accumulated deficit
Accumulated other comprehensive loss
Noncontrolling Interest
Cumulative Effect, Period of Adoption, Adjustment
Total
Balance at Dec. 31, 2021 $ (44,050) $ 605,911 $ 162 $ (110,217) $ 1,543,357 $ 66,167 $ (937,608)     $ (44,050) $ 605,911
Balance (in shares) at Dec. 31, 2021     162,036,461                
Increase (Decrease) in Stockholders' Equity (Deficit)                      
Issuance of common stock related to share-based awards and employee stock purchase plan   11,790 $ 3   11,787           11,790
Issuance of common stock related to share-based awards and employee stock purchase plan (in shares)     2,756,841                
Share-based compensation expense related to share-based awards and employee stock purchase plan   27,048     27,048           27,048
Repurchases of common stock   (123,386) $ (11)   (123,375)           $ (123,386)
Repurchases of common stock (in shares)     (10,766,353)               (10,800,000)
Net income (loss)   175,065         175,065       $ 175,065
Balance at Dec. 31, 2022   652,378 $ 154   1,348,600   (696,376)       652,378
Balance (in shares) at Dec. 31, 2022     154,026,949                
Increase (Decrease) in Stockholders' Equity (Deficit)                      
Issuance of common stock related to share-based awards and employee stock purchase plan   4,005 $ 2   4,003           4,005
Issuance of common stock related to share-based awards and employee stock purchase plan (in shares)     2,327,289                
Share-based compensation expense related to share-based awards and employee stock purchase plan   32,005     32,005           32,005
Noncontrolling interests on acquisition of VectivBio Holding AG                 $ 26,218   26,218
Purchase of subsidiary shares from noncontrolling interests   (29,476)     (29,413)     $ (63) 3,165   (26,311)
Net income (loss)   (1,002,239)         (1,002,239)   (29,320)   (1,031,559)
Other comprehensive income (loss), net of tax   (2,968)           (2,968) $ (63)   (3,031)
Balance at Dec. 31, 2023   (346,295) $ 156   1,355,195   (1,698,615) (3,031)     $ (346,295)
Balance (in shares) at Dec. 31, 2023     156,354,238               156,354,238
Increase (Decrease) in Stockholders' Equity (Deficit)                      
Issuance of common stock related to share-based awards and employee stock purchase plan   11,013 $ 4   11,009           $ 11,013
Issuance of common stock related to share-based awards and employee stock purchase plan (in shares)     3,851,661                
Share-based compensation expense related to share-based awards and employee stock purchase plan   29,850     29,850           29,850
Taxes paid related to net share settlement of share-based awards   (737)     (737)           (737)
Net income (loss)   880         880       880
Other comprehensive income (loss), net of tax   3,954           3,954     3,954
Balance at Dec. 31, 2024   $ (301,335) $ 160   $ 1,395,317   $ (1,697,735) $ 923     $ (301,335)
Balance (in shares) at Dec. 31, 2024     160,205,899               160,205,899
v3.25.1
Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Cash flows from operating activities:      
Net loss $ 880 $ (1,031,559) $ 175,065
Adjustments to reconcile net loss to net cash provided by operating activities:      
Depreciation and amortization 2,011 1,575 1,418
Loss on disposal of property and equipment 75   2
Share-based compensation expense 29,850 32,005 27,048
Change in fair value of note hedge warrants   (19) (182)
Non-cash interest expense 1,904 2,060 1,853
Acquired in-process research and development   1,095,449  
Deferred income taxes 68,090 72,637 65,739
Changes in assets and liabilities:      
Accounts receivable, net 47,236 924 7,993
Prepaid expenses and other current assets 89 4,220 3,224
Operating lease right-of-use assets 1,558 1,437 1,327
Other assets (854) (319) 153
Accounts payable and accrued expenses (20,208) 12,380 (8,116)
Accrued research and development costs (14,650) (5,875) (10,638)
Operating lease liabilities (2,176) (1,995) (1,947)
Other liabilities (10,256) 507 10,824
Net cash provided by operating activities 103,549 183,427 273,763
Cash flows from investing activities:      
Purchases of property and equipment (142) (273) (136)
Acquisition of VectivBio Holding AG, net of cash acquired   (1,026,045)  
Net cash used in investing activities (142) (1,026,318) (136)
Cash flows from financing activities:      
Proceeds from exercise of stock options and employee stock purchase plan 11,013 6,357 9,540
Taxes paid related to net share settlement of share-based awards (737)    
Purchase of subsidiary shares from noncontrolling interests   (26,311)  
Repayment of 2022 Convertible Notes (200,000)   (120,699)
Repurchases of common stock     (126,394)
Proceeds from revolving credit facility 150,000 400,000  
Costs associated with revolving credit facility (2,246) (2,886)  
Repayments of revolving credit facility (65,000) (100,000)  
Net cash provided by (used in) financing activities (106,970) 277,160 (237,553)
Effect of exchange rate changes on cash, cash equivalents and restricted cash (32) (53)  
Net increase (decrease) in cash, cash equivalents and restricted cash (3,595) (565,784) 36,074
Cash, cash equivalents and restricted cash, beginning of period 92,154 657,938 621,864
Cash, cash equivalents and restricted cash, end of period 88,559 92,154 657,938
Supplemental cash flow disclosure:      
Cash paid for interest 32,563 13,552 5,745
Cash paid for income taxes $ 8,408 $ 9,945 4,615
Non-cash investing and financing activities      
Stock option exercise proceeds receivable in other current assets     $ 2,351
v3.25.1
Consolidated Statements of Cash Flows (Parenthetical) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents [Abstract]        
Cash and cash equivalents $ 88,559 $ 92,154 $ 656,203  
Restricted cash 0 0 1,735  
Total cash, cash equivalents, and restricted cash $ 88,559 $ 92,154 $ 657,938 $ 621,864
v3.25.1
Nature of Business
12 Months Ended
Dec. 31, 2024
Disclosure Text Block  
Nature of Business

1. Nature of Business

Ironwood Pharmaceuticals, Inc. (“Ironwood” or the “Company”) is a biotechnology company developing and commercializing life-changing therapies for people living with gastrointestinal (“GI”) and rare diseases. The Company is focused on the development and commercialization of innovative GI product opportunities in areas of significant unmet need, leveraging its demonstrated expertise and capabilities in GI diseases.

LINZESS® (linaclotide), the Company’s commercial product, is the first product approved by the United States Food and Drug Administration (the “U.S. FDA”) in a class of GI medicines called guanylate cyclase type C agonists (“GC-C agonists”) and is indicated for adult men and women suffering from irritable bowel syndrome with constipation (“IBS-C”) or chronic idiopathic constipation (“CIC”) and for pediatric patients ages 6-17 years-old suffering from functional constipation (“FC”). LINZESS is available to adult men and women suffering from IBS-C or CIC in the United States (the “U.S.”) and Mexico, adult men and women suffering from IBS-C or chronic constipation in Japan, and IBS-C in China, and pediatric patients ages 6-17 years old with FC in the U.S. Linaclotide is available under the trademarked name CONSTELLA® to adult men and women suffering from IBS-C or CIC and pediatric patients ages 6-17 years old with FC in Canada, and to adult men and women suffering from IBS-C in certain European countries.

The Company has strategic partnerships with leading pharmaceutical companies to support the development and commercialization of linaclotide throughout the world. The Company and its partner, AbbVie Inc. (together with its affiliates, “AbbVie”), began commercializing LINZESS in the U.S. in December 2012. Under the Company’s collaboration for North America with AbbVie, total net sales of LINZESS in the U.S., as recorded by AbbVie, are reduced by commercial costs incurred by each party, and the resulting amount is shared equally between the Company and AbbVie. Additionally, development costs are shared equally between the Company and AbbVie.

Outside of the U.S., the Company earns royalties as a percentage of net sales of products containing linaclotide as an active ingredient by the Company’s collaboration partners. AbbVie has an exclusive license from the Company to develop and commercialize linaclotide in all countries other than China (including Hong Kong and Macau), Japan and the countries and territories of North America (the “AbbVie License Territory”). In addition, AbbVie has exclusive rights to commercialize linaclotide in Canada as CONSTELLA and in Mexico as LINZESS. Astellas Pharma Inc. (“Astellas”), the Company’s partner in Japan, has an exclusive license to develop, manufacture, and commercialize linaclotide in Japan. AstraZeneca AB (together with its affiliates) (“AstraZeneca”), the Company’s partner in China, has the exclusive right to develop, manufacture, and commercialize products containing linaclotide in China (including Hong Kong and Macau) (the “AstraZeneca License Territory”).

Through the acquisition of VectivBio Holding AG (“VectivBio”), the Company is advancing apraglutide, a next-generation, synthetic peptide long-acting analog of glucagon-like peptide-2, developed for short bowel syndrome (“SBS”) patients who are dependent on parenteral support (“PS”). The acquisition of VectivBio is more fully described in Note 3, Acquisitions, to these consolidated financial statements.

The Company also has IW-3300, a GC-C agonist, for the potential treatment of visceral pain conditions, such as interstitial cystitis / bladder pain syndrome (“IC/BPS”) and endometriosis. In the fourth quarter of 2024, the Company decided to end further recruitment for the Phase II proof of concept study in IC/BPS and analyze the data once all currently enrolled patients complete the full 12-week study assessment, which will inform the next steps in the program.

The Company was incorporated in Delaware on January 5, 1998 as Microbia, Inc. On April 7, 2008, the Company changed its name to Ironwood Pharmaceuticals, Inc. To date, the Company has dedicated a majority of its activities to the research, development and commercialization of linaclotide, as well as to the research and development of its other product candidates.

v3.25.1
Summary of Significant Accounting Policies
12 Months Ended
Dec. 31, 2024
Disclosure Text Block  
Summary of Significant Accounting Policies

2. Summary of Significant Accounting Policies

Principles of Consolidation

The accompanying consolidated financial statements as of December 31, 2024 include the accounts of Ironwood, its wholly-owned subsidiaries, Ironwood Pharmaceuticals Securities Corporation, Ironwood Pharmaceuticals GmbH, VectivBio AG, and GlyPharma Therapeutic Inc. (“GlyPharma”). All intercompany transactions and balances are eliminated in consolidation.

For consolidated entities in which the Company owns less than 100% of the outstanding shares, the Company records net income (loss) and comprehensive income (loss) attributable to noncontrolling interests in its consolidated statements of income (loss) and comprehensive income (loss), respectively, equal to the percentage of the common stock ownership interest retained in such entities by the noncontrolling parties. The Company reports noncontrolling interests in consolidated entities as a component of equity separate from the Company’s equity.

Segment Information

Operating segments are components of an enterprise for which separate financial information is available and is evaluated regularly by the Company’s chief operating decision-maker in deciding how to allocate resources and in assessing performance. The Company currently operates in one reportable business segment – human therapeutics. The Company’s reportable business segment is more fully described in Note 17, Segment Reporting, to these consolidated financial statements.

Reclassifications

Certain prior period financial statement items have been reclassified to conform to current period presentation.

Use of Estimates

The preparation of consolidated financial statements in accordance with U.S. generally accepted accounting principles requires the Company’s management to make estimates and judgments that may affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and the amounts of revenues and expenses during the reported periods. On an ongoing basis, the Company’s management evaluates its estimates, judgments and methodologies. Estimates and assumptions in the consolidated financial statements include those related to fair value of assets acquired and liabilities assumed in acquisitions; revenue recognition; accounts receivable; useful lives of long-lived assets; impairment of long-lived assets, including goodwill; valuation procedures for right-of-use assets and operating lease liabilities; income taxes, including uncertain tax positions and the valuation allowance for deferred tax assets; research and development expenses; contingencies; defined benefit pension liabilities and certain investment fund assets; and share-based compensation. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities. Actual results may differ materially from these estimates under different assumptions or conditions. Changes in estimates are reflected in reported results in the period in which they become known.

Cash and Cash Equivalents

The Company considers all highly liquid investment instruments with a remaining maturity when purchased of three months or less to be cash equivalents. Investments qualifying as cash equivalents primarily consist of money market funds, U.S. Treasury securities, and commercial paper. The carrying amount of cash equivalents approximates fair value. The amount of cash equivalents included in cash and cash equivalents was $55.0 million and $58.7 million at December 31, 2024 and 2023, respectively.

Restricted Cash

The Company is contingently liable under unused letters of credit with a bank, related to the Company’s facility lease and vehicle lease agreements. Collateral used to secure letters of credit is classified as restricted cash. There was no restricted cash as of December 31, 2024 or 2023.

Concentrations of Suppliers

The Company relies on its collaboration partners and their suppliers to manufacture linaclotide API, linaclotide finished drug product, and finished goods.

If any of the Company’s collaboration partners and their suppliers were to limit or terminate production or otherwise fail to meet the quality or delivery requirements needed to satisfy the supply commitments, the process of locating and qualifying alternate sources could require up to several months, during which time production could be delayed. Such delays could have a material adverse effect on the Company’s business, financial position and results of operations.

Accounts Receivable

The Company makes judgments as to its ability to collect outstanding receivables and provides an allowance for credit losses when collection becomes doubtful. Provisions are made based upon a specific review of all significant outstanding invoices and the overall quality and age of those invoices not specifically reviewed. The Company’s receivables relate primarily to amounts reimbursed under its collaboration, license, and other agreements. The Company believes that credit risks associated with these partners are not significant. The Company reviews the need for an allowance for credit losses for its receivables based on various factors including payment history and historical bad debt experience. The Company had no allowance for credit losses as of December 31, 2024 or 2023.

Concentrations of Credit Risk

Financial instruments that subject the Company to credit risk primarily consist of cash and cash equivalents, restricted cash, and accounts receivable. The Company maintains its cash and cash equivalent balances with high-quality financial institutions and the Company believes that such funds are subject to minimal credit risk. The Company has adopted an investment policy which limits the amounts the Company may invest in certain types of investments, and requires all investments held by the Company to be at least A- rated, thereby reducing credit risk exposure.

Accounts receivable primarily consists of amounts due under the linaclotide collaboration agreement with AbbVie for North America (Note 5). The Company does not obtain collateral for its accounts receivable.

The percentages of revenue recognized from significant collaborative partners of the Company in the years ended December 31, 2024, 2023, and 2022 and the account receivable balances, net of any payables due, at December 31, 2024 and 2023 are included in the following table:

Accounts
Receivable

Revenue

 

December 31, 

Year Ended December 31, 

 

    

2024

    

2023

    

2024

    

2023

    

2022

 

Collaborative Partner:

AbbVie (North America and Europe)

 

99

%  

87

%  

99

%  

98

%  

98

%  

 

 

Property and Equipment

Property and equipment, including leasehold improvements, are recorded at cost, and are depreciated when placed into service using the straight-line method based on their estimated useful lives as follows:

    

Estimated Useful Life

Asset Description

    

(In Years)

Laboratory equipment

 

5

Computer and office equipment

 

3

Furniture and fixtures

 

7

Software

 

3

 

Included in property and equipment are certain costs of software obtained for internal use. Costs incurred during the preliminary project stage are expensed as incurred, while costs incurred during the application development

stage are capitalized and amortized over the estimated useful life of the software. The Company also capitalizes costs related to specific upgrades and enhancements when it is probable the expenditures will result in additional functionality. Maintenance and training costs related to software obtained for internal use are expensed as incurred.

Leasehold improvements are amortized over the shorter of the estimated useful life of the asset or the lease term.

Costs for capital assets not yet placed into service have been capitalized as construction in process, and will be depreciated in accordance with the above guidelines once placed into service. Maintenance and repair costs are expensed as incurred.

Intangible Assets

Intangible assets are comprised of the assembled workforce acquired in the VectivBio Acquisition and are amortized on a straight-line basis over an estimated useful life of five years.

Impairment of Long-Lived Assets

The Company regularly reviews the carrying amount of its long-lived assets to determine whether indicators of impairment may exist, which warrant adjustments to carrying values or estimated useful lives. If indications of impairment exist, projected future undiscounted cash flows associated with the asset are compared to the carrying amount to determine whether the asset’s value is recoverable. If the carrying value of the asset exceeds such projected undiscounted cash flows, the asset will be written down to its estimated fair value.

Income Taxes

The Company provides for income taxes under the asset and liability method. Deferred tax assets and liabilities are determined based on differences between financial reporting and tax bases of assets and liabilities and are measured using the enacted tax rates in effect when the differences are expected to reverse. Deferred tax assets are reduced by a valuation allowance to reflect the uncertainty associated with their ultimate realization.

The Company accounts for uncertain tax positions recognized in the consolidated financial statements in accordance with the provisions of Accounting Standards Codification (“ASC”) Topic 740, Income Taxes, by prescribing a more-likely-than-not threshold for financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. When uncertain tax positions exist, the Company recognizes the tax benefit of tax positions to the extent that the benefit will more likely than not be realized. The determination as to whether the tax benefit will more likely than not be realized is based upon the technical merits of the tax position as well as consideration of the available facts and circumstances. The Company evaluates uncertain tax positions on a quarterly basis and adjusts the level of the liability to reflect any subsequent changes in the relevant facts surrounding the uncertain positions. Any changes to these estimates, based on the actual results obtained and/or a change in assumptions, could impact the Company’s income tax provision in future periods. Interest and penalty charges, if any, related to unrecognized tax benefits are classified as income tax expense in the Company’s consolidated statements of income (loss).

Financing Costs

Financing costs include costs directly attributable to the Company’s offerings of its equity securities and its debt financings. Costs attributable to equity offerings are charged as a reduction to stockholders’ equity against the proceeds of the offering once the offering is completed. Costs attributable to debt financings are deferred and amortized to interest expense over the term of the debt using the effective interest method. In accordance with ASC Topic 835, Interest, the Company presents on its balance sheet unamortized debt issuance costs related to convertible notes as a direct deduction from the associated debt liability and unamortized debt issuance costs related to revolving credit arrangements as other assets.

Leases

The Company’s lease portfolio for the year ended December 31, 2024 included: an office lease for its headquarters location and other locations, vehicle leases for its salesforce representatives, and leases for computer and

office equipment. The Company determines if an arrangement is a lease at the inception of the contract and determines the classification of its leases at lease commencement. The asset component of the Company’s operating leases is recorded as operating lease right-of-use assets, and the liability component is recorded as current portion of operating lease liabilities and operating lease liabilities, net of current portion in the Company’s consolidated balance sheets. As of December 31, 2024, the Company did not record any finance leases.

Right-of-use assets and operating lease liabilities are recognized based on the present value of lease payments over the lease term at the lease commencement date. The lease term used to measure the right-of-use asset and operating lease liability may include options to extend the lease when it is reasonably certain that the Company will exercise the option. The Company accounts for lease components and non-lease components together as a single lease component for the asset class of right-of-use real estate assets. The Company uses an incremental borrowing rate based on the information available at lease commencement in determining the present value of lease payments, if an implicit rate of return is not readily determinable. Operating lease right-of-use assets are adjusted for prepaid rent, initial direct costs, and lease incentives.

Right-of-use assets and operating lease liabilities are remeasured upon reassessment events and modifications to leases using the present value of remaining lease payments and estimated incremental borrowing rate at the time of remeasurement, as applicable.

Operating lease cost is recognized on a straight-line basis over the lease term, and includes amounts related to short-term leases. The Company has elected to not recognize lease terms with a term of twelve months or less on its balance sheet for all classes of underlying asset types. The Company recognizes variable lease payments as operating expenses in the period in which the obligation for those payments is incurred. Variable lease payments primarily include common area maintenance, utilities, real estate taxes, insurance, and other operating costs that are passed on from the lessor in proportion to the space leased by the Company.

Derivative Assets and Liabilities

In June 2015, the Company issued 2.25% Convertible Senior Notes due June 15, 2022 (the “2022 Convertible Notes”), and in August 2019, the Company issued 0.75% Convertible Senior Notes due 2024 (the “2024 Convertible Notes”) and 1.50% Convertible Senior Notes due 2026 (the “2026 Convertible Notes”, and together with the 2022 Convertible Notes and the 2024 Convertible Notes, the “Convertible Senior Notes”). In connection with the issuance of the 2022 Convertible Notes, the Company entered into convertible note hedge transactions (the “Convertible Note Hedges”) and separate note hedge warrant transactions (the “Note Hedge Warrants”), with certain financial institutions (Note 10). In connection with the partial repurchase of the 2022 Convertible Notes in August 2019, the Company terminated its Convertible Note Hedges and Note Hedge Warrants proportionately. The Convertible Note Hedges terminated unexercised upon expiry in June 2022 and the Note Hedge Warrants terminated unexercised upon expiry in April 2023. These instruments are derivative financial instruments under ASC Topic 815, Derivatives and Hedging (“ASC 815”).

These derivatives are recorded as assets or liabilities at fair value each reporting date and the fair value is determined using the Black-Scholes option-pricing model. The changes in fair value are recorded as a component of other (expense) income in the consolidated statements of income. Significant inputs used to determine the fair value include the price per share of the Company’s Class A Common Stock, expected terms of the derivative instruments, strike prices of the derivative instruments, risk-free interest rates, and expected volatility of the Company’s Class A Common Stock. Changes to these inputs could materially affect the valuation of the derivative instruments. Cash flows related to the purchase and settlement of derivatives are classified as financing activities and gains and losses upon revaluation and settlement are classified as operating activities on the consolidated statement of cash flows.

In August 2019, in connection with the issuance of the 2024 Convertible Notes and the 2026 Convertible Notes, the Company entered into the Capped Calls. The Capped Calls cover the same number of shares of Class A Common Stock that initially underlie the 2024 Convertible Notes and the 2026 Convertible Notes (subject to anti-dilution and certain other adjustments). These instruments meet the conditions outlined in ASC 815 to be classified in stockholders’ equity (deficit) and are not subsequently remeasured as long as the conditions for equity classification continue to be met. The Capped Calls related to the 2024 Convertible Notes expired unexercised upon maturity of the 2024 Convertible Notes in June 2024.

Share Repurchases

The Company accounts for repurchases of its Class A Common Stock on the trade date by recording the excess of the repurchase price over the par value entirely to additional paid-in capital. All repurchased shares are retired or constructively retired. Issued and outstanding shares are reduced by shares repurchased.

Revenue Recognition

The Company’s revenues are generated primarily through collaborative arrangements and license agreements related to the research and development and commercialization of linaclotide. The terms of the collaborative research and development, license, co-promotion and other agreements contain multiple performance obligations which may include (i) licenses, (ii) research and development activities, including participation on joint steering committees, (iii) the manufacture of finished drug product, API, or development materials for a partner, which are reimbursed at a contractually determined rate, and (iv) education or co-promotion activities by the Company’s clinical sales specialists. Non-refundable payments to the Company under these agreements may include (i) up-front license fees, (ii) payments for research and development activities, (iii) payments for the manufacture of finished drug product, API, or development materials, (iv) payments based upon the achievement of certain milestones, (v) payments for sales detailing, promotional support services and medical education initiatives, and (vi) royalties on product sales. The Company receives its share of the net profits or bears its share of the net losses from the sale of linaclotide in the U.S. through its collaboration agreement with AbbVie for North America. The Company has adopted a policy to recognize revenue net of tax withholdings, as applicable.

Collaboration, License, and Other Commercial Agreements

Upon licensing intellectual property to a customer, the Company determines if the license is distinct from the other performance obligations identified in the arrangement. The Company recognizes revenues from the transaction price, including non-refundable, up-front fees allocated to the license when the license is transferred to the customer if the license has distinct benefit to the customer. For licenses that are combined with other promises, the Company assesses the nature of the combined performance obligation to determine whether the combined performance obligation is satisfied over time or at a point in time. For performance obligations that are satisfied over time, the Company evaluates the measure of progress each reporting period and, if necessary, adjusts the measure of performance and related revenue recognition.

The Company’s license and collaboration agreements include milestone payments, such as development and other milestones. The Company evaluates whether the milestones are considered probable of being reached and estimates the amount to be included in the transaction price using the most likely amount method at the inception of the agreement. If it is probable that a significant revenue reversal would not occur, the associated milestone value is included in the transaction price. Milestone payments that are not within the control of the Company, such as regulatory approvals, are not considered probable of being achieved until those approvals are received. The transaction price is then allocated to each performance obligation on a relative standalone selling price basis, for which the Company recognizes revenue as or when the performance obligations under the contract are satisfied. The Company re-evaluates the probability of achievement of such milestones and any related constraint at each reporting period, and any adjustments are recorded on a cumulative catch-up basis.

Agreements that include the supply of API or drug product for either clinical development or commercial supply at the customer’s discretion are generally considered as options. The Company assesses if these options provide a material right to its partner, and if so, they are accounted for as separate performance obligations. If the Company is entitled to additional payments when the customer exercises these options, any additional payments are recorded as revenue when the customer obtains control of the goods, which is typically upon shipment for sales of API and finished drug product.

For agreements that include sales-based royalties, including milestone payments based on the level of sales, and the license is deemed to be the predominant item to which the royalties relate, the Company recognizes revenue when the related sales occur in accordance with the sales-based royalty exception.

Net Profit or Net Loss Sharing

In accordance with ASC Topic 808, Collaborative Arrangements (“ASC 808”), the Company considers the nature and contractual terms of the arrangement and the nature of the Company’s business operations to determine the classification of payments under the Company’s collaboration agreements. While ASC 808 provides guidance on classification, the standard is silent on matters of separation, initial measurement, and recognition. Therefore, the Company applies the separation, initial measurement, and recognition principles of ASC Topic 606, Revenue from Contracts with Customers (“ASC 606”), as applicable.

The Company’s collaborative arrangements revenues generated from sales of LINZESS in the U.S. are considered akin to sales-based royalties. In accordance with the sales-based royalty exception, the Company recognizes its share of the pre-tax commercial net profit or net loss generated from the sales of LINZESS in the U.S. in the period the product sales are earned, as reported by AbbVie, and related cost of goods sold and selling, general and administrative expenses as incurred by the Company and AbbVie. These amounts are partially determined based on amounts provided by AbbVie and involve the use of estimates and judgments, such as product sales allowances and accruals related to prompt payment discounts, chargebacks, governmental and contractual rebates, wholesaler fees, product returns, and co-payment assistance costs, which could be adjusted based on actual results in the future. The Company is highly dependent on AbbVie for timely and accurate information regarding net revenues from sales of LINZESS in the U.S. in accordance with both ASC 808 and ASC 606, and the related costs, in order to accurately report its results of operations. If the Company does not receive timely and accurate information or incorrectly estimates activity levels associated with the collaboration at a given point in time, the Company could be required to record adjustments in future periods.

In accordance with ASC 606-10-55, Principal Agent Considerations, the Company records revenue transactions as net product revenue in its consolidated statements of income if it is deemed the principal in the transaction, which includes being the primary obligor, retaining inventory risk, and control over pricing. Given that the Company is not the primary obligor and does not have the inventory risks in the collaboration agreement with AbbVie for North America, it records its share of the net profits or net losses from the sales of LINZESS in the U.S. on a net basis and presents the settlement payments to and from AbbVie as collaboration expense or collaborative arrangements revenue, as applicable. The Company and AbbVie settle the cost sharing quarterly such that the Company’s statements of income reflect 50% of the pre-tax net profit or loss generated from sales of LINZESS in the U.S.

Other

The Company’s deferred revenue balance consists of advance billings and payments received from collaboration partners in excess of revenue recognized.

Research and Development Costs

The Company generally expenses research and development costs to operations as incurred. The Company capitalizes nonrefundable advance payments made by the Company for research and development activities and defers expense recognition until the related goods are received or the related services are performed.

Research and development expenses are comprised of costs incurred in performing research and development activities, including salary, benefits, share-based compensation, and other employee-related expenses; laboratory supplies and other direct expenses; facilities expenses; overhead expenses; third-party contractual costs relating to nonclinical studies and clinical trial activities and related contract manufacturing expenses, development of manufacturing processes and regulatory registration of third-party manufacturing facilities; licensing fees for the Company’s product candidates; and other outside expenses.

The Company has certain collaboration agreements pursuant to which it shares or has shared research and development expenses related to linaclotide. The Company records expenses incurred under such linaclotide collaboration arrangements as research and development expense. Under the Company’s collaboration agreement with AbbVie for North America, the Company is reimbursed for certain research and development expenses and nets these reimbursements against its research and development expenses as incurred.

Research and development expense includes up-front payment, non-contingent payment, and milestone payment obligations under certain collaboration arrangements. Expense is recognized when the obligation is determined to be probable.

Restructuring Expenses

Restructuring expenses are comprised primarily of costs associated with exit and disposal activities in accordance with ASC Topic 420, Exit or Disposal Cost Obligations, and ASC Topic 712, Compensation – Nonretirement Postemployment Benefits, and include one-time termination benefits and contract-related costs. Such costs are based on estimates of fair value in the period liabilities are incurred. The Company evaluates and adjusts these costs for changes in circumstances as additional information becomes available.

Selling, General and Administrative Expenses

The Company expenses selling, general and administrative costs to operations as incurred. Selling, general and administrative expenses consist primarily of compensation, benefits and other employee-related expenses for personnel in the Company’s administrative, finance, legal, information technology, business development, commercial, sales, marketing, communications and human resource functions. Other costs include legal costs of pursuing patent protection of the Company’s intellectual property, general and administrative related facility costs, insurance costs and professional fees for accounting, tax, consulting, legal and other services.

The Company includes AbbVie’s selling, general and administrative cost-sharing payments in the calculation of the net profits and net losses from the sale of LINZESS in the U.S. and presents the net payment to or from AbbVie as collaboration expense or collaborative arrangements revenue, respectively.

Defined Benefit Pension Obligations

Pension benefits earned during the year, as well as interest on projected benefit obligations, are accrued. Service costs are recognized within research and development expenses or selling, general and administrative expenses, depending on the function of the plan participant. Prior service costs and credits resulting from changes in plan benefits are generally amortized over the average remaining service period of the employees expected to receive benefits. Actuarial gains and losses are recognized in other income (expense), net, in the year in which they occur. The Company recognizes a pension plan’s funded status as either an asset or liability in its consolidated balance sheets.

Share-Based Compensation Expense

The Company grants awards under its share-based compensation programs, including stock awards, restricted stock awards (“RSAs”), restricted stock units (“RSUs”) (including both time-based and performance-based RSUs), stock options, and shares issued under the Company’s employee stock purchase plan (“ESPP”). Share-based compensation is recognized as expense in the consolidated statements of income based on the grant date fair value over the requisite service period, net of estimated forfeitures. The Company estimates forfeitures over the requisite service period using historical forfeiture activity and records share-based compensation expense only for those awards that are expected to vest.

The Company estimates the fair value of stock options using the Black-Scholes option-pricing model, which requires the use of subjective assumptions including volatility and expected term, among others. The fair value of stock awards, RSAs, and RSUs is based on the market value of the Company’s Class A Common Stock on the date of grant, with the exception of performance-based RSUs with market conditions, which are measured using the Monte Carlo simulation method on the date of grant (Note 13). Discounted stock purchases under the Company’s ESPP are valued on the first date of the offering period using the Black-Scholes option-pricing model to compute the fair value of the lookback provision plus the purchase discount.

For awards that vest based on service conditions and market conditions, the Company uses a straight-line method to recognize compensation expense over the respective service period. For awards that contain performance conditions, the Company determines the appropriate amount to expense at each reporting date based on the anticipated achievement of performance targets, which requires judgement, including forecasting the achievement of future specified targets. At the date performance conditions are determined to be probable of achievement, the Company

records a cumulative expense catch-up, with remaining expense amortized over the remaining service period. Throughout the performance period, the Company re-assesses the estimated performance and updates the number of performance-based awards that it believes will ultimately vest. Discounted stock purchases under the Company’s ESPP are recognized over the offering period.

Compensation expense related to modified awards is measured based on the fair value for the awards as of the modification date. Any incremental compensation expense arising from the excess of the fair value of the awards on the modification date compared to the fair value of the awards immediately before the modification date is recognized at the modification date or ratably over the requisite remaining service period, as appropriate.

While the assumptions used to calculate and account for share-based compensation awards represent management’s best estimates, these estimates involve inherent uncertainties and the application of management’s judgment. As a result, if revisions are made to the Company’s underlying assumptions and estimates, the Company’s share-based compensation expense could vary significantly from period to period.

Patent Costs

The Company incurred and recorded as operating expense legal and other fees related to patents of $2.2 million, $1.8 million, and $1.3 million for the years ended December 31, 2024, 2023 and 2022, respectively. These costs were charged to selling, general and administrative expenses as incurred.

Net Income (Loss) Per Share

Basic net income (loss) per common share is computed by dividing the net income by the weighted average number of common shares outstanding during the period. Diluted net income (loss) per share reflects the potential dilution beyond common shares for basic net income (loss) per share that could occur if securities or other contracts to issue common shares were exercised, converted into common shares, or resulted in the issuance of common shares that would have shared in the Company’s earnings.

Foreign Currency Translation

For subsidiaries with a different functional currency than the U.S. dollar, assets and liabilities are translated at the exchange rate as of the balance sheet date and income and expense items are translated at the average exchange rate for the reporting period. Adjustments resulting from the translation of the financial statements of foreign subsidiaries are recorded in accumulated comprehensive income (loss), a separate component of stockholders’ equity.

Acquisitions

The Company evaluates acquisitions of assets and other similar transactions to assess whether the transaction should be accounted for as a business combination or asset acquisition by first applying a screen test to determine whether substantially all of the fair value of the gross assets acquired is concentrated into a single identifiable asset or group of similar identifiable assets. If the screen test is met, a single asset or group of assets is not a business and is accounted for as an asset acquisition. If the screen test is not met, further determination is required as to whether the Company has acquired inputs and processes that have the ability to create outputs that would meet the requirements of a business.

The Company accounts for business combinations using the acquisition method of accounting, which requires the acquiring entity to recognize the fair value of assets acquired and liabilities assumed and establishes the acquisition date as the fair value measurement point. The Company determines the fair value of assets acquired and liabilities assumed based on management’s estimate of the fair value of assets acquired and liabilities assumed in the acquisition. Goodwill represents the excess of the purchase price over the fair value of the net tangible and intangible assets acquired. Transaction costs are expensed as incurred.

The Company accounts for asset acquisitions that are not determined to be a business combination by recognizing net assets based on the consideration paid, inclusive of transaction costs, on a relative fair value basis. In an asset acquisition, the cost allocated to acquired in-process research and development (“IPR&D”) with no alternative future use is charged to research and development expense at the acquisition date. The Company classifies asset acquisitions of acquired IPR&D as investing activities on its consolidated statements of cash flows.

Comprehensive Income (Loss)

Comprehensive income (loss) is comprised of net income (loss) and other comprehensive income (loss). Other comprehensive income (loss) includes foreign currency translation adjustments and certain changes in the fair value of pension plan assets and projected benefit obligation attributed to the Company’s defined benefit pension plans. Accumulated other comprehensive income (loss) is presented as a separate component of stockholders’ equity (deficit).

Subsequent Events

The Company considers events or transactions that have occurred after the balance sheet date of December 31, 2024, but prior to the filing of the financial statements with the Securities and Exchange Commission (“SEC”) to provide additional evidence relative to certain estimates or to identify matters that require additional recognition or disclosure. Subsequent events have been evaluated through the filing of the financial statements accompanying this Annual Report on Form 10-K. Refer to Note 16 for subsequent events relating to workforce reductions and restructuring.

New Accounting Pronouncements

From time to time, new accounting pronouncements are issued by the Financial Accounting Standards Board (the “FASB”) or other standard setting bodies that are adopted by the Company as of the specified effective date. The Company did not adopt any new accounting pronouncements during the year ended December 31, 2024 that had a material effect on its consolidated financial statements.

In November 2023, the FASB issued Accounting Standards Update (“ASU”) No. 2023-07, Segment Reporting (Topic 280) (“ASU 2023-07”). The guidance in ASU 2023-07 expands prior reportable segment disclosure requirements by requiring entities to disclose significant segment expenses that are regularly provided to the Chief Operating Decision Maker (“CODM”) and details of how the CODM uses financial reporting to assess their segment’s performance. The standard is effective for fiscal years beginning after December 15, 2023 and interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. The ASU is required to be applied retrospectively upon adoption. The expanded disclosure requirements are included in the consolidated financial statements (Note 17).

In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures (“ASU 2023-09”). The guidance in ASU 2023-09 improves the transparency of annual income tax disclosures by requiring greater disaggregation of information in the rate reconciliation and income taxes paid disaggregated by jurisdiction. The standard is effective for fiscal years beginning after December 15, 2024, with early adoption permitted. Upon adoption, ASU 2023-09 may be applied prospectively or retrospectively. The Company is currently evaluating the impact that the adoption of ASU 2023-09 may have on its disclosures in its annual consolidated financial statements.

In November 2024, the FASB issued ASU No. 2024-03, Disaggregation of Income Statement Expenses (“ASU 2024-03”). The guidance in ASU 2024-03 requires new financial statement disclosures in tabular format, disaggregating information about prescribed categories underlying any relevant income statement expense captions. The standard is effective for fiscal years beginning after December 15, 2026 and interim periods within fiscal years beginning after December 15, 2027, with early adoption permitted. Upon adoption, ASU 2024-03 may be applied prospectively or retrospectively. The Company is currently evaluating the impact that the adoption of ASU 2024-03 may have on its disclosures in its consolidated financial statements.

In November 2024, the FASB issued ASU No. 2024-04, Debt—Debt with Conversion and Other Options (Subtopic 470-20) (“ASU 2024-04”). The guidance in ASU 2024-04 clarifies the requirements related to accounting for the settlement of a debt instrument as an induced conversion. The standard is effective for fiscal years beginning after December 15, 2025, and interim periods within fiscal years beginning after December 15, 2025, with early adoption permitted as of the beginning of a reporting period if the entity has also adopted ASU 2020-06 for that period. The Company is currently evaluating the impact that the adoption of ASU 2024-04 may have on its disclosures in its consolidated financial statements.

Other recent accounting pronouncements issued, but not yet effective, are not expected to be applicable to the Company or have a material effect on the consolidated financial statements upon future adoption.

During the year ended December 31, 2022, the Company adopted the following accounting pronouncement that had a material effect on its consolidated financial statements:

In August 2020, the FASB issued ASU No. 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging— Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity (“ASU 2020-06”). The amendments in ASU 2020-06 simplify the accounting for certain financial instruments with characteristics of liabilities and equity, including convertible instruments and contracts on an entity’s own equity. Under ASU 2020-06, embedded conversion features are no longer separately reported in equity and convertible debt instruments are now accounted for as a single liability measured at amortized cost, as long as no other features require bifurcation and recognition as derivatives. These changes reduce reported interest expense and increase reported net income for entities with convertible instruments that were bifurcated between liabilities and equity under previously existing guidance. Additionally, temporary differences between the book and tax bases resulting from the bifurcation of the embedded conversion feature under previously existing guidance have been eliminated and deferred tax assets and liabilities arising from such temporary differences are no longer reported. The new guidance also requires the if-converted method to be used in diluted earnings per share computations for all convertible instruments and revised the if-converted method to preclude the addback of interest expense to the numerator if the principal portions of the convertible instruments are required to be settled in cash. The standard became effective for public companies for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2021. Upon adoption, entities could elect to apply the new standard on a modified retrospective or full retrospective basis.

The Company adopted ASU 2020-06 on January 1, 2022 using the modified retrospective approach, which resulted in a cumulative-effect adjustment recorded on the date of adoption as follows (in thousands):

December 31, 2021

Effect of the Adoption

January 1, 2022

Consolidated Balance Sheet

    

As Reported

    

of ASU 2020-06

    

As Adjusted

Deferred tax assets

$

333,294

$

16,855

$

350,149

Current portion of convertible senior notes

116,858

3,581

120,439

Long-term portion of convertible senior notes

337,333

57,324

394,657

Additional paid-in-capital

1,543,357

(110,217)

1,433,140

Retained earnings

(937,608)

66,167

(871,441)

 

 

Interest expense recognized in subsequent periods is reduced as a result of accounting for convertible debt instruments as a single liability measured at amortized cost, with a decrease of $22.1 million of non-cash interest expense during the year ended December 31, 2022 compared to the year ended December 31, 2021 related to convertible debt instruments outstanding on the adoption date.

The adoption of ASU 2020-06 did not impact the Company’s liquidity or cash flows.

v3.25.1
Acquisitions
12 Months Ended
Dec. 31, 2024
Disclosure Text Block  
Acquisitions
3. Acquisitions

In June 2023, the Company completed a tender offer to purchase 98% of the outstanding ordinary shares of VectivBio, a clinical-stage biotechnology company focused on the discovery and development of treatments for severe, rare GI conditions for which there is a significant unmet medical need, at a price per share of $17.00, net to the shareholders of VectivBio in cash, without interest and subject to any applicable withholding taxes (the “VectivBio Acquisition”). In December 2023, the Company completed a squeeze-out merger under Swiss law to acquire all remaining outstanding ordinary shares in cash at a price per share of $17.00, totaling $26.3 million, and VectivBio Holding AG was merged with and into Ironwood Pharmaceuticals GmbH, a wholly-owned subsidiary of Ironwood organized under the laws of Switzerland (the “Squeeze-out Merger”). The aggregate consideration paid by the Company to acquire the shares accepted for payment was approximately $1.2 billion. The Company financed the acquisition through proceeds from the borrowings under the Revolving Credit Agreement (as defined elsewhere below) and cash on hand. As of December 31, 2023, there was no remaining noncontrolling interest in VectivBio.

The total purchase consideration for VectivBio is as follows (in thousands):

Cash consideration paid to selling shareholders (1)

$

1,041,391

Cash consideration paid to settle VectivBio restricted stock units (“RSUs”) and stock options (2)

 

78,003

Cash consideration paid to settle VectivBio warrants (3)

3,720

Transaction costs

26,270

Fair value of noncontrolling interest (4)

26,218

Total purchase consideration

$

1,175,602

(1)The cash consideration paid to selling shareholders was determined based on the total number of the outstanding ordinary shares of VectivBio (the “VectivBio Shares”) tendered at closing of 61,258,315 at a per share price of $17.00.
(2)The cash consideration paid to settle VectivBio RSUs and stock options issued under VectivBio’s equity incentive plans was determined based on the total number of underlying VectivBio Shares of 8,904,171 at a per share price of $17.00, less the exercise price for stock options.
(3)The cash consideration paid to settle VectivBio warrants was determined based on the total number of VectivBio warrant shares outstanding at close of 324,190 at a per share price of $11.4757 calculated as the per share price of $17.00, less the exercise price of $5.5243 per share.
(4)The fair value of the noncontrolling interest was determined based on the total number of VectivBio Shares outstanding at closing of 1,547,723 at the closing date of the tender offer, using the VectivBio closing share price on June 28, 2023 of $16.94.

 

The VectivBio Acquisition was accounted for as an asset acquisition under Accounting Standards Codification (“ASC”) Topic 805, Business Combinations, because substantially all of the fair value of the gross assets acquired was concentrated in a single identifiable in-process research and development (“IPR&D”) asset, apraglutide, VectivBio’s lead investigational asset. Apraglutide is a next generation, long-acting synthetic GLP-2 analog being developed for SBS patients who are dependent on PS. The Company recognized the acquired assets and assumed liabilities based on the consideration paid, inclusive of transaction costs, on a relative fair value basis. In accordance with the accounting for asset acquisitions, an entity that acquires IPR&D assets in an asset acquisition follows the guidance in ASC Topic 730, Research and Development, which requires that both tangible and intangible identifiable research and development assets with no alternative future use be allocated a portion of the consideration transferred and recorded as research and development expense at the acquisition date. As a result, the Company recorded approximately $1.1 billion in acquired IPR&D expense related to the apraglutide IPR&D asset during the second quarter of 2023.

The following is the allocation of the purchase consideration based on the relative fair value of assets acquired and liabilities assumed by the Company (in thousands):

Assets acquired

Cash and cash equivalents

$

123,340

Prepaid expenses and other current assets

10,867

Property and equipment

126

Intangible assets

4,100

Acquired in-process research and development

1,095,449

Total assets acquired

$

1,233,882

Liabilities assumed

Current liabilities

42,377

Other liabilities

15,903

Total liabilities assumed

$

58,280

Net assets acquired

$

1,175,602

 

Acquisition-related expenses include direct and incremental costs incurred in connection with the transaction, including integration-related professional services and employee retention-related benefits. Acquisition-related expenses exclude transaction costs included in the computation of total consideration paid. The Company tracked and disclosed acquisition-related expenses incurred through the end of the second quarter of 2024. For the six months ended June 30, 2024, the Company incurred acquisition related expenses of $3.6 million, of which $1.1 million was included in selling, general, and administrative expenses and $2.5 million was included in restructuring expenses within the Company’s consolidated statement of income (loss). The Company incurred acquisition-related expenses of $55.6 million for the year ended December 31, 2023, of which $25.6 million was included in selling, general and administrative expenses, $15.1 million was included in research and development expense, and $14.9 million was included in restructuring expense within the Company’s consolidated statement of income (loss) for the year ended December 31, 2023.

Intangible assets are comprised of the assembled workforce and are amortized on a straight-line basis over an estimated useful life of five years. The Company recognized $0.8 million of amortization expense during the year ended December 31, 2024. The Company recognized $0.4 million of amortization expense during the period between acquisition date on June 29, 2023 through December 31, 2023. The net carrying value of the assembled workforce at December 31, 2024 is $2.9 million. Future annual amortization expense will be $0.8 million for each of the years ended December 31, 2025 through December 31, 2027 and $0.4 million for the year ending December 31, 2028.

v3.25.1
Net Income (Loss) Per Share
12 Months Ended
Dec. 31, 2024
Disclosure Text Block  
Net Income (Loss) Per Share

4. Net Income (Loss) Per Share

The following table sets forth the computation of basic and diluted net income (loss) per common share (in thousands, except per share amounts):

Year Ended December 31, 

2024

2023 (1)

    

2022

Numerator:

Net income (loss)

$

880

$

(1,031,559)

$

175,065

Less: Net loss attributable to noncontrolling interests

(29,320)

Net income (loss) attributable to Ironwood Pharmaceuticals, Inc.

880

(1,002,239)

175,065

Add back interest expense, net of tax benefit, on assumed conversion of 2024 Convertible Notes

1,781

Add back interest expense, net of tax benefit, on assumed conversion of 2026 Convertible Notes

2,668

Numerator used in computing net income (loss) per share — diluted

$

880

$

(1,002,239)

$

179,514

Denominator:

Weighted average number of common shares outstanding used in computing net income (loss) per share — basic

159,083

 

155,435

 

154,366

Effect of dilutive securities:

 

Stock options

306

Time-based restricted stock units

425

1,375

Performance-based restricted stock units

480

282

Restricted stock

96

115

2024 Convertible Notes assumed conversion

14,934

2026 Convertible Notes assumed conversion

14,934

Dilutive potential common shares

Weighted average number of common shares outstanding used in computing net income (loss) per share — diluted

160,084

 

155,435

186,312

Net income (loss) per share — basic

$

0.01

$

(6.45)

$

1.13

Net income (loss) per share — diluted

$

0.01

$

(6.45)

$

0.96

(1) The Company incurred a net loss during the year ended December 31, 2023 and therefore did not differentiate basic and diluted earnings per share, as the effect of dilutive securities would be anti-dilutive.

 

The dilutive impact of the Convertible Senior Notes is determined using the if-converted method. Under the if-converted method, the Convertible Senior Notes are assumed to be converted into common stock at the beginning of the period (or at the time of issuance, if later). Interest charges are deducted from the numerator, unless the principal amount of the convertible instruments is required to be paid in cash. The dilutive impact of all other types of dilutive securities is determined using the treasury stock method.

The outstanding securities set forth in the following table have been excluded from the computation of diluted weighted average shares outstanding, as applicable, as their effect would be anti-dilutive (in thousands):

Year Ended December 31, 

    

2024

    

2023

    

2022

Stock options

4,821

 

4,829

 

6,152

Time-based restricted stock units

3,596

28

10

Performance-based restricted stock units

34

216

1,182

Note Hedge Warrants

2,514

8,318

2026 Convertible Notes

14,934

Total

 

23,385

 

7,587

 

15,662

 

There was no dilutive impact of the 2024 Convertible Notes (as defined below) and the 2022 Convertible Notes for the year ended December 31, 2024 and December 31, 2022, respectively, because the Company had elected prior to the beginning of the period to settle the conversion of 2024 Convertible Notes and 2022 Convertible Notes, if any, with a combination settlement of a cash payment equal to the principal value of converted notes and shares of Class A Common Stock equal to the conversion value in excess of the principal value, if any (Note 10). Accordingly, interest expense was not removed from the numerator and there was no calculated spread added to the denominator because the average market price of the Company’s Class A common stock during the portion of each period in which the 2024 Convertible Notes and the 2022 Convertible Notes were outstanding was not in excess of the conversion price.

v3.25.1
Collaboration, License, and Other Agreements
12 Months Ended
Dec. 31, 2024
Disclosure Text Block  
Collaboration, License, and Other Agreements

5. Collaboration, License, and Other Agreements

The Company has linaclotide collaboration agreements with AbbVie for North America and AstraZeneca for China (including Hong Kong and Macau), as well as linaclotide license agreements with Astellas for Japan and with AbbVie for the AbbVie License Territory. The following table provides amounts included in the Company’s consolidated statements of income (loss) as collaborative arrangements revenue attributable to transactions from these and other agreements (in thousands):

Year Ended December 31, 

Collaborative Arrangements Revenue

2024

    

2023

    

2022

Linaclotide Collaboration and License Agreements:

AbbVie (North America)

$

343,154

    

$

433,242

    

$

401,498

AbbVie (Europe and other)

3,236

2,779

2,444

AstraZeneca (China, including Hong Kong and Macau)

364

 

430

 

635

Astellas (Japan)

1,673

 

1,799

 

2,001

Other Agreements:

Alnylam (GIVLAARI)

2,194

Asahi Kasei Pharma Corporation (apraglutide)

2,249

2,009

Other

734

2,476

1,824

Total collaborative arrangements revenue

$

351,410

$

442,735

$

410,596

 

Accounts receivable, net, included $81.9 million and $129.1 million primarily related to collaborative arrangements revenue, collectively, as of December 31, 2024 and 2023, respectively. Accounts receivable, net, included $81.3 million and $112.6 million due from the Company’s partner, AbbVie, net of $3.1 million and $4.3 million of accounts payable, as of December 31, 2024 and 2023, respectively.

The Company routinely assesses the creditworthiness of its license and collaboration partners. The Company did not experience any material losses related to receivables from its license or collaboration partners during the years ended December 31, 2024, 2023, or 2022.

Linaclotide Agreements

Collaboration Agreement for North America with AbbVie

In September 2007, the Company entered into a collaboration agreement with AbbVie to develop and commercialize linaclotide for the treatment of IBS-C, CIC, and other GI conditions in North America. Under the terms of this collaboration agreement, the Company received an upfront licensing fee, equity investment, and development and

regulatory milestones, and shares equally with AbbVie all development costs as well as net profits or losses from the development and sale of linaclotide in the U.S. In addition, the Company receives royalties in the mid-teens percent based on net sales in Canada and Mexico. AbbVie is solely responsible for the further development, regulatory approval and commercialization of linaclotide in those countries and funding any costs.

During the years ended December 31, 2024, 2023, and 2022, the Company incurred $7.4 million, $7.0 million, and $8.0 million, respectively, in total research and development expenses under the linaclotide collaboration for North America. As a result of the research and development cost-sharing provisions of the linaclotide collaboration for North America, the Company incurred $8.6 million, $11.6 million, and $8.9 million in incremental research and development costs during the years ended December 31, 2024, 2023, and 2022, respectively, to reflect the obligations of each party under the collaboration to bear 50% of the development costs incurred.

The Company and AbbVie began commercializing LINZESS in the U.S. in December 2012. The Company receives 50% of the net profits and bears 50% of the net losses from the commercial sale of LINZESS in the U.S. Net profits or net losses consist of net sales of LINZESS to third-party customers and sublicense income in the U.S. less the cost of goods sold as well as selling, general and administrative expenses. LINZESS net sales are calculated and recorded by AbbVie and may include gross sales net of discounts, rebates, allowances, sales taxes, freight and insurance charges, and other applicable deductions.

The Company evaluated its linaclotide collaboration arrangement for North America and concluded that all development-period performance obligations had been satisfied as of September 2012. The Company has determined that there are three remaining commercial-period performance obligations, which include the sales detailing of LINZESS, participation in the joint commercialization committee, and approved additional trials. The consideration remaining includes cost reimbursements in the U.S. and net profit and loss sharing payments based on net sales in the U.S. Additionally, the Company receives royalties in the mid-teens percent based on net sales in Canada and Mexico. Royalties and net profit and loss sharing payments will be recorded as collaborative arrangements revenue or expense in the period earned, as these payments relate predominately to the license granted to AbbVie. The Company records royalty revenue in the period earned based on royalty reports from its partner, if available, or based on the projected sales and historical trends. The cost reimbursements received from AbbVie during the commercialization period will be recognized as earned in accordance with the right-to-invoice practical expedient, as the Company’s right to consideration corresponds directly with the value of the services transferred during the commercialization period.

Under the Company’s linaclotide collaboration agreement for North America, LINZESS net sales are calculated and recorded by AbbVie and include gross sales net of discounts, rebates, allowances, sales taxes, freight and insurance charges, and other applicable deductions, as noted above. These amounts include the use of estimates and judgments, which could be adjusted based on actual results in the future. The Company records its share of the net profits or net losses from the sales of LINZESS in the U.S. less commercial expenses on a net basis, and presents the settlement payments to and from AbbVie as collaboration expense or collaborative arrangements revenue, as applicable. This treatment is in accordance with the Company’s revenue recognition policy, given that the Company is not the primary obligor and does not have the inventory risks in the collaboration agreement with AbbVie for North America. The Company relies on AbbVie to provide accurate and complete information related to net sales of LINZESS in accordance with U.S. generally accepted accounting principles in order to calculate its settlement payments to and from AbbVie and record collaboration expense or collaborative arrangements revenue, as applicable.

During the year ended December 31, 2024, the Company recognized a $43.0 million reduction to collaboration revenue, as a result of changes in estimates of sales reserves and allowances associated with governmental and contractual rebates. Excluding the changes in estimates, net income per share – basic and net income per share – diluted would have been $0.21 and $0.19, respectively, for the year ended December 31, 2024.

The following table summarizes collaborative arrangements revenue from the linaclotide collaboration agreement for North America during the years ended December 31, 2024, 2023, and 2022 as follows (in thousands):

Year Ended December 31, 

 

2024

    

2023

    

2022

Collaborative arrangements revenue related to sales of LINZESS in the U.S.

$

340,394

$

430,463

$

398,767

Royalty revenue

 

2,760

 

2,779

 

2,731

Total collaborative arrangements revenue

$

343,154

$

433,242

$

401,498

 

The Company incurred $39.3 million, $37.1 million, and $34.3 million in total selling, general and administrative costs related to the sale of LINZESS in the U.S. in accordance with the cost-sharing arrangement with AbbVie for the years ended December 31, 2024, 2023, and 2022, respectively.

In May 2014, CONSTELLA® became commercially available in Canada and, in June 2014, LINZESS became commercially available in Mexico. The Company records royalties on sales of CONSTELLA in Canada and LINZESS in Mexico in the period earned. The Company recognized $2.8 million, $2.8 million, and $2.7 million of combined royalty revenues from Canada and Mexico during the years ended December 31, 2024, 2023, and 2022, respectively.

License Agreement with AbbVie (All countries other than the countries and territories of North America, China (including Hong Kong and Macau), and Japan)

The Company has a license agreement with AbbVie to develop, manufacture and commercialize linaclotide in (i) Europe, and (ii) all other countries other than China (including Hong Kong and Macau), Japan, and the countries and territories of North America, or collectively the “Expanded Territory”, for the treatment of IBS-C, CIC and other GI conditions.

Under the license agreement, as amended, AbbVie is obligated to pay the Company, (i) royalties based on sales volume in Europe in the upper-teens percent, and (ii) on a country-by-country and product-by-product basis in the Expanded Territory, a royalty as a percentage of net sales of products containing linaclotide as an active ingredient in the upper-single digits for five years following the first commercial sale of a linaclotide product in a country, and in the low-double digits thereafter. The royalty rate for products in Europe and the Expanded Territory will decrease, on a country-by-country basis, to the lower-single digits, or cease entirely, following the occurrence of certain events. The license agreement also contains certain sales-based milestones and commercial launch milestones, which could total up to $42.5 million.

The Company recognized $3.2 million, $2.8 million and $2.4 million of royalty revenue during the years ended December 31, 2024, 2023, and 2022, respectively.

License Agreement for Japan with Astellas

The Company has a license agreement with Astellas to develop, manufacture, and commercialize linaclotide for the treatment of IBS-C, CIC and other GI conditions in Japan.

Under the license agreement, as amended, Astellas is required to pay royalties to the Company at rates beginning in the mid-single digit percent and escalating to low-double-digit percent, based on aggregate annual net sales in Japan of products containing linaclotide as an active ingredient. These royalty payments are subject to reduction following the expiration of certain licensed patents and the occurrence of generic competition in Japan.

During the years ended December 31, 2024, 2023, and 2022, the Company recognized $1.7 million, $1.8 million and $2.0 million of royalty revenue, respectively.

Collaboration Agreement for China (including Hong Kong and Macau) with AstraZeneca

The Company has a collaboration agreement with AstraZeneca under which AstraZeneca has the exclusive right to develop, manufacture and commercialize products containing linaclotide in the AstraZeneca License Territory.

Under the collaboration agreement, AstraZeneca is required to pay tiered royalties to the Company at rates beginning in the mid-single-digit percent and increasing up to twenty percent based on the aggregate annual net sales of products containing linaclotide in the AstraZeneca License Territory. In addition, AstraZeneca may be required to make milestone payments totaling up to $90.0 million contingent on the achievement of certain sales targets.

During the years ended December 31, 2024, 2023, and 2022, the Company recognized $0.4 million, $0.4 million and $0.6 million of royalty revenue, respectively.

At December 31, 2023, the Company had accounts receivable in the amount of $15.0 million related to the third and final installment of a non-contingent receivable due from AstraZeneca in connection with an amendment to the collaboration agreement executed during 2019. The non-contingent receivable was collected in full during the first quarter of 2024.

Apraglutide Agreements

Development and Commercialization Agreement with AKP

In March 2022, VectivBio entered into a development and commercialization agreement with Asahi Kasei Pharma Corporation (“AKP”) in which VectivBio granted an exclusive license to AKP, with the right to sublicense in multiple tiers, to develop, commercialize and exploit products derived from apraglutide in Japan.

Pursuant to the terms of the development and commercialization agreement with AKP, VectivBio received an upfront payment of JPY 3,000 million ($24.6 million at date of agreement) and development-related payments of JPY 1,600 million in the aggregate ($13.1 million at date of agreement), and is eligible to receive development milestones of JPY 1,000 million ($8.2 million at date of agreement) and up to JPY 19,000 million ($155.8 million at date of agreement) of commercial and sales-based milestone payments. VectivBio is also eligible to receive payments in the commercial period for manufacturing supply equal to cost-plus manufacturing mark-up and tiered royalties of up to a mid-double-digit percentage on product sales continuing until the later of (i) expiration of regulatory exclusivity in Japan, or (ii) expiration of the last valid patent claim that provides exclusivity to apraglutide in Japan (the “Royalty Term”). The development and commercialization agreement will terminate upon the expiration of the Royalty Term.

The Company identified two performance obligations consisting of the (i) exclusive license for the development and commercialization of apraglutide in Japan and (ii) development activities for conducting global trials and sharing of associated development data necessary for obtaining and maintaining regulatory approval in Japan. Each performance obligation was capable of being distinct and distinct in the context of the contract. The initial transaction price was allocated to each performance obligation on a relative standalone selling price basis. The Company assessed that it provided a right to use the license as the license exists (in terms of form and functionality) at the point in time at which it is granted and therefore, was satisfied at the inception of the arrangement. The development activities are being recognized over time as the Company performs development activities related to the global trials. The Company recognizes revenue associated with the development activities using an input method, according to the costs incurred, which in management’s judgment, is the best measure of progress towards satisfying the performance obligation. Under the sales-or-usage-based royalty exception, revenue related to sales-based milestone payments and royalty payments will be recognized as the underlying sales occur.

Prior to the VectivBio Acquisition, VectivBio had received the upfront payment of JPY 3,000 million ($24.6 million at date of agreement), development-related payments of JPY 1,100 million ($9.0 million at date of agreement), and development milestones of JPY 500 million ($4.1 million at date of agreement). Upon the acquisition of VectivBio on June 29, 2023, the Company assumed a contract liability for deferred revenue related to the development-related payments at its fair value of $4.3 million.

In April 2024, VectivBio received the final development-related payment of JPY 500 million ($4.1 million at date of agreement).

The Company recognized $2.2 million of revenue during the year ended December 31, 2024. The Company recognized $2.0 million of revenue during the period between the acquisition date of June 29, 2023 and December 31, 2023 related to development activities. As of December 31, 2024, current deferred revenue of $2.0 million and non-current deferred revenue of $1.8 million is reported within accrued expenses and other current liabilities and other

liabilities, respectively, on the consolidated balance sheets. Deferred revenue and future payments received related to development activities are expected to be recognized over the course of the development activities, which are expected to occur through 2028.

License Agreement with Ferring

In August 2012, as subsequently amended and restated in December 2016, GlyPharma entered into an exclusive licensing agreement with Ferring International Center, S.A. (“Ferring”), pursuant to which Ferring granted GlyPharma an exclusive, worldwide, sublicensable license under certain patent rights and know-how controlled by Ferring relating to apraglutide and certain know-how controlled by Ferring relating to specified alternate drug compounds, to research, develop, manufacture, make, have made, import, export, use, sell, distribute, promote, advertise, dispose of or offer to sell (i) products containing apraglutide whose manufacture, use or sale is covered by a valid claim of the licensed patents, or licensed products and (ii) products, containing a specified alternate drug compound, or alternate drug products. In April 2021, the license agreement was transferred and assigned to VectivBio AG, a subsidiary of VectivBio.

Under the license agreement, as partial consideration for the rights Ferring granted to it, VectivBio AG is required to pay Ferring a high single-digit percentage royalty on worldwide annual net sales of licensed products and alternate drug products until, on a country-by-country basis and licensed product-by-licensed product or alternate drug product-by-alternate drug product basis, as applicable, the date on which the manufacture, use or sale of such licensed product or alternate drug product, as applicable, ceases to be covered by a valid claim of a patent within the licensed patents in such a country. GlyPharma was also required to issue Ferring a certain number of warrants and Class A preferred shares pursuant to a shareholders’ agreement. The equity obligations under the license agreement have been fully performed by GlyPharma.

The Company is also obligated to pay Ferring a specified percentage of the annual consideration VectivBio AG or its affiliates, including the Company, received in connection with sales of licensed product or alternate drug product by any third parties to which VectivBio AG or its affiliates, including the Company, grant a sublicense of any of the rights licensed to VectivBio AG by Ferring under this license agreement. Such percentage is in the high single digits for sales of both licensed products and alternate drug products, and such payments are owed for the duration of the royalty term for licensed products or alternate drug products, as applicable.

Other Collaboration and License Agreements

Collaboration and License Option Agreement with COUR

In November 2021, the Company entered into the COUR Collaboration Agreement, pursuant to which the Company was granted an option (the “Option”) to acquire an exclusive license to research, develop, manufacture and commercialize, in the U.S., products containing CNP-104 for the treatment of PBC. COUR has initiated a Phase II clinical study to evaluate the safety, tolerability, and pharmacodynamic effects and efficacy of CNP-104 in PBC patients. After reviewing the data from the clinical study for CNP-104, the Company had the right to exercise the Option and pay COUR $35.0 million in exchange for the license, subject to the Company’s right to apply a credit against such payment as described below.

In April 2023, the Company and COUR executed an amendment to the COUR Collaboration Agreement, in which the Company agreed to pay a one-time, non-refundable, upfront payment of $6.0 million to COUR in exchange for the right to apply a credit of $6.6 million against future amounts due to COUR in connection with the exercise of the Option, commercial milestones, or royalties. In connection with such payment, COUR also granted the Company a right of first negotiation over certain additional potential research and development programs. The $6.0 million payment was

recognized as research and development expense in the second quarter of 2023.

In the third quarter of 2024, the Company received from COUR the topline data from COUR’s Phase II clinical study for the treatment of PBC. In September 2024, the Company notified COUR of its decision not to exercise the option to acquire an exclusive license to CNP-104. As a result, the collaboration and license option agreement between the Company and COUR has terminated, and the Company retains no rights and has no obligations related to CNP-104.

Other Agreements

Disease Education and Promotional Agreement with Alnylam

In August 2019, the Company and Alnylam Pharmaceuticals, Inc. (“Alnylam”) entered into a disease education and promotional agreement (the “Alnylam Agreement”) for Alnylam’s GIVLAARI (givosiran) for the treatment of acute hepatic porphyria. The Alnylam Agreement, as amended, was terminated in June 2021 with an effective termination date of September 30, 2021. Under the terms of the Alnylam Agreement, the Company’s sales force performed disease awareness activities and sales detailing activities for GIVLAARI. The Company remained eligible to receive royalties based on a percentage of net sales of GIVLAARI that are directly attributable to the Company’s promotional efforts through September 30, 2022, which was one year following the termination of the agreement. 

During the year ended December 31, 2022 the Company recognized $2.2 million in royalty revenue.

v3.25.1
Fair Value of Financial Instruments
12 Months Ended
Dec. 31, 2024
Disclosure Text Block  
Fair Value of Financial Instruments

6. Fair Value of Financial Instruments

The tables below present information about the Company’s assets and liabilities that are measured at fair value on a recurring basis as of December 31, 2024 and 2023 and indicate the fair value hierarchy of the valuation techniques the Company utilized to determine such fair value. In general, fair values determined by Level 1 inputs utilize observable inputs such as quoted prices in active markets for identical assets or liabilities. Fair values determined by Level 2 inputs utilize data points that are either directly or indirectly observable, such as quoted prices for similar instruments in active markets, interest rates and yield curves. Fair values determined by Level 3 inputs utilize unobservable data points in which there is little or no market data, which require the Company to develop its own assumptions for the asset or liability.

The Company’s investment portfolio may include fixed income securities that do not always trade on a daily basis. As a result, the pricing services used by the Company apply other available information as applicable through processes such as benchmark yields, benchmarking of like securities, sector groupings and matrix pricing to prepare valuations. In addition, model processes are used to assess interest rate impact and develop prepayment scenarios. These models take into consideration relevant credit information, perceived market movements, sector news and economic events. The inputs into these models may include benchmark yields, reported trades, broker-dealer quotes, issuer spreads and other relevant data. The Company validates the prices provided by its third party pricing services by obtaining market values from other pricing sources and analyzing pricing data in certain instances. The Company periodically invests in certain reverse repurchase agreements, which are collateralized by Government Securities and Obligations for an amount not less than 102% of their principal amount. The Company does not record an asset or liability for the collateral as the Company is not permitted to sell or re-pledge the collateral. The collateral has at least the prevailing credit rating of U.S. Government Treasuries and Agencies. The Company utilizes a third-party custodian to manage the exchange of funds and ensure the collateral received is maintained at 102% of the reverse repurchase agreements principal amount on a daily basis.

The following tables present the assets the Company has measured at fair value on a recurring basis (in thousands):

Fair Value Measurements at Reporting Date Using

  

  

Quoted Prices in

    

Significant Other

    

Significant

Active Markets for

Observable

Unobservable

December 31, 

Identical Assets

Inputs

Inputs

2024

(Level 1)

(Level 2)

(Level 3)

Assets:

Cash and cash equivalents:

Money market funds

$

36,010

$

36,010

$

$

U.S. Treasury securities

11,044

11,044

Commercial paper

7,928

7,928

Total assets measured at fair value

$

54,982

$

36,010

$

18,972

$

Fair Value Measurements at Reporting Date Using

  

  

Quoted Prices in

    

Significant Other

    

Significant

Active Markets for

Observable

Unobservable

December 31, 

Identical Assets

Inputs

Inputs

2023

(Level 1)

(Level 2)

(Level 3)

Assets:

Cash and cash equivalents:

Money market funds

$

45,939

$

45,939

$

$

U.S. Treasury securities

10,507

10,507

Commercial paper

2,240

2,240

Total assets measured at fair value

$

58,686

$

45,939

$

12,747

$

 

Cash equivalents, accounts receivable, prepaid expenses and other current assets, accounts payable, accrued research and development costs, accrued expenses and other current liabilities and current portion of operating lease obligations at December 31, 2024 and 2023 are carried at amounts that approximate fair value due to their short-term maturities.

 

 

 

Convertible Senior Notes

In August 2019, the Company issued $200.0 million aggregate principal amount of its 0.75% convertible senior notes due 2024 (the “2024 Convertible Notes”) and $200.0 million aggregate principal amount of its 1.50% convertible senior notes due 2026 (the “2026 Convertible Notes”) (Note 10). The fair value of the respective convertible senior notes, which differs from their carrying value, is influenced by interest rates, the price of the Company’s Class A Common Stock and the volatility thereof, and the prices for the respective convertible senior notes observed in market trading, which are Level 2 inputs.

In June 2024, the Company repaid the aggregate principal amount of the 2024 Convertible Notes upon maturity (Note 10). The estimated fair value of the 2024 Convertible Notes was $209.6 million as of December 31, 2023. The estimated fair value of the 2026 Convertible Notes was $186.6 million and $217.1 million as of December 31, 2024 and 2023, respectively.

Capped Calls with Respect to 2024 Convertible Notes and 2026 Convertible Notes

In connection with the issuance of the 2024 Convertible Notes and the 2026 Convertible Notes, the Company entered into the Capped Calls with certain financial institutions. The Capped Calls cover 29,867,480 shares of Class A Common Stock (subject to anti-dilution and certain other adjustments), which is the same number of shares of Class A Common Stock that initially underlie the 2024 Convertible Notes and the 2026 Convertible Notes. The Capped Calls have an initial strike price of approximately $13.39 per share, which corresponds to the initial conversion price of the 2024 Convertible Notes and the 2026 Convertible Notes, and have a cap price of approximately $17.05 per share (Note 10). The strike price and cap price are subject to anti-dilution adjustments generally similar to those applicable to the 2024 Convertible Notes and the 2026 Convertible Notes. These instruments meet the conditions outlined in ASC 815, to be classified in stockholders’ equity and are not subsequently remeasured as long as the conditions for equity classification continue to be met (Note 10).

Revolving Credit Agreement

Outstanding borrowings under the revolving credit facility (Note 10) are carried at amounts that approximate fair value based on their nature, terms, credit spreads, and variable interest rates, which are Level 3 inputs.

Non-recurring Fair Value Measurements

Acquired IPR&D

The fair value of the acquired IPR&D asset, apraglutide, was determined using the multi-period excess earnings

method using Level 3 fair value measurements and inputs including estimated cash flows and probabilities of success.

Assembled Workforce

The fair value of the assembled workforce was determined using the replacement cost method using Level 3 fair value measurements and inputs including estimated costs and productivity metrics.

v3.25.1
Leases
12 Months Ended
Dec. 31, 2024
Disclosure Text Block  
Leases

7. Leases

The Company’s lease portfolio for the year ended December 31, 2024 included: an office lease for its current headquarters location and other locations, vehicle leases for its salesforce representatives, and leases for computer and office equipment.

The Company’s headquarters office lease and vehicle leases require letters of credit totaling $1.2 million to secure the Company’s obligations under the lease agreements. The letters of credit are maintained under a subfacility of the revolving credit agreement (Note 10).

Lease cost is recognized on a straight-line basis over the lease term. The components of lease cost for the years ended December 31, 2024, 2023, and 2022 are as follows (in thousands):

Year Ended December 31, 

2024

2023

2022

Operating lease cost

$

2,507

$

2,507

$

2,509

Short-term lease cost

1,520

1,241

1,070

Total lease cost

$

4,027

$

3,748

$

3,579

 

Supplemental information related to leases for the periods reported is as follows:

Year Ended December 31, 

2024

2023

2022

Cash paid for amounts included in the measurement of lease liabilities (in thousands)

$

3,126

$

3,065

$

3,114

Weighted-average remaining lease term of operating leases (in years)

5.4

6.4

7.3

Weighted-average discount rate of operating leases

5.8

%

5.8

%

5.8

%

 

Summer Street Lease

In June 2019, the Company entered into a non-cancelable operating lease (the “Summer Street Lease”) for approximately 39,000 square feet of office space on the 23rd floor of 100 Summer Street, Boston, Massachusetts, which has been the Company’s headquarters since October 2019. The Summer Street Lease terminates on June 11, 2030 and includes a 2% annual rent escalation, free rent periods, a tenant improvement allowance, and an option to extend the term of the lease for an additional five years at a market base rental rate. The extension option is not included in the lease term used for the measurement of the lease, as it is not reasonably certain to be exercised. The lease expense, inclusive of the escalating rent payments and lease incentives, is recognized on a straight-line basis over the lease term.

At lease commencement, the Company recorded a right-of-use asset and a lease liability using an incremental borrowing rate of 5.8%. At December 31, 2024, the balances of the right-of-use asset and operating lease liability were $11.0 million and $15.5 million, respectively. At December 31, 2023, the balances of the right-of-use asset and operating lease liability were $12.6 million and $17.7 million, respectively.

Lease costs recorded during each of the years ended December 31, 2024, 2023, and 2022 were $2.5 million.

Future minimum lease payments under the Summer Street Lease as of December 31, 2024 are as follows (in thousands):

2025

$

3,189

2026

 

3,252

2027

3,317

2028

3,384

2029 and thereafter

 

4,902

Total future minimum lease payments

18,044

Less: present value adjustment

(2,551)

Operating lease liabilities

15,493

Less: current portion of operating lease liabilities

(3,189)

Operating lease liabilities, net of current portion

$

12,304

 

 

 

v3.25.1
Property and Equipment
12 Months Ended
Dec. 31, 2024
Disclosure Text Block  
Property and Equipment

8. Property and Equipment

Property and equipment, net consisted of the following (in thousands):

December 31, 

 

2024

    

2023

Software

$

1,567

$

1,652

Leasehold improvements

 

7,407

 

7,407

Laboratory equipment

 

 

1,327

Furniture and fixtures

 

1,732

 

1,747

Computer and office equipment

 

2,154

 

2,341

 

12,860

 

14,474

Less accumulated depreciation and amortization

 

(8,365)

 

(8,889)

$

4,495

$

5,585

 

Depreciation expense of property and equipment was $1.2 million, $1.2 million and $1.4 million for the years ended December 31, 2024, 2023, and 2022, respectively.

v3.25.1
Accrued Expenses and Other Current Liabilities
12 Months Ended
Dec. 31, 2024
Disclosure Text Block  
Accrued Expenses and Other Current Liabilities

9. Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consisted of the following (in thousands):

    

December 31, 2024

    

December 31, 2023

Accrued compensation and benefits

$

14,547

$

19,937

Accrued interest

 

4,771

 

5,953

Deferred revenue

2,032

2,620

Accrued restructuring liabilities

560

8,303

Accrued taxes

521

1,244

Other

4,418

6,197

Total accrued expenses and other current liabilities

$

26,849

$

44,254

 

As of December 31, 2024 and 2023, other accrued expenses were comprised primarily of $4.3 million and $6.1 million of uninvoiced vendor liabilities, respectively.

v3.25.1
Debt
12 Months Ended
Dec. 31, 2024
Disclosure Text Block  
Debt

10. Debt

2.25% Convertible Senior Notes due 2022

In June 2015, the Company issued $335.7 million aggregate principal amount of the 2022 Convertible Notes. The Company received net proceeds of $324.0 million from the sale of the 2022 Convertible Notes, after deducting fees and expenses of $11.7 million. The Company used $21.1 million of the net proceeds from the sale of the 2022 Convertible Notes to pay the net cost of the Convertible Note Hedges (after such cost was partially offset by the proceeds to the Company from the sale of the Note Hedge Warrants), as described below.

In connection with the issuance of the 2024 Convertible Notes and the 2026 Convertible Notes in August 2019, the Company repurchased $215.0 million aggregate principal amount of the 2022 Convertible Notes. Such portion of the 2022 Convertible Notes were repurchased at a premium totaling $227.3 million.

In June 2022, the Company repaid the remaining $120.7 million aggregate principal amount of the 2022 Convertible Notes upon maturity.

The 2022 Convertible Notes were governed by an indenture (the “2022 Indenture”) between the Company and U.S. Bank National Association, as trustee (the “Trustee”). The 2022 Convertible Notes were senior unsecured obligations and bore cash interest at the annual rate of 2.25%, payable on June 15 and December 15 of each year. The 2022 Convertible Notes matured on June 15, 2022. No conversions were exercised by holders of the 2022 Convertible Notes.

0.75% Convertible Senior Notes due 2024 and 1.50% Convertible Senior Notes due 2026

In August 2019, the Company issued $200.0 million aggregate principal amount of the 2024 Convertible Notes and $200.0 million aggregate principal amount of the 2026 Convertible Notes, pursuant to separate indentures (each an

“Indenture” and together the “Indentures”), between the Company and U.S. Bank National Association, as trustee (the

“Trustee”). The Company received net proceeds of $391.0 million from the sale of the 2024 Convertible Notes and 2026 Convertible Notes, after deducting fees and expenses of $9.0 million. The Company used $25.2 million of the net proceeds from the sale of the 2024 Convertible Notes and 2026 Convertible Notes to pay the cost of the Capped Calls, as described below.

In June 2024, the Company repaid the $200.0 million aggregate principal amount of the 2024 Convertible Notes upon maturity. The 2024 Convertible Notes bore cash interest at the annual rate of 0.75% payable on June 15 and December 15 of each year. No conversions were exercised by holders of the 2024 Convertible Notes.

The 2026 Convertible Notes bear cash interest at the annual rate of 1.50%, payable on June 15 and December 15 of each year. The 2026 Convertible Notes will mature on June 15, 2026, unless earlier converted or repurchased.

The initial conversion rate for the 2026 Convertible Notes is 74.6687 shares of Class A Common Stock (subject to adjustment as provided for in the Indenture) per $1,000 principal amount of the 2026 Convertible Notes, which is equal to an initial conversion price of approximately $13.39 per share.

The Company will settle conversions of the 2026 Convertible Notes through payment or delivery, as the case may be, of cash, shares of the Company’s Class A Common Stock or a combination of cash and shares of Class A Common Stock, at the Company’s option (subject to, and in accordance with, the settlement provisions of the Indenture).

Holders of the 2026 Convertible Notes may convert their notes at their option at any time prior to the close of business on the business day immediately preceding December 15, 2025 in multiples of $1,000 principal amount, only under the following circumstances:

during any calendar quarter commencing after the calendar quarter ending on December 31, 2019 (and only during such calendar quarter), if the last reported sale price of Class A Common Stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the conversion price for the 2026 Convertible Notes on each applicable trading day;

during the five-business day period after any five consecutive trading day period (the “measurement period”) in which the “trading price” (as defined in each Indenture) per $1,000 principal amount of the 2026 Convertible Notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of Class A Common Stock and the conversion rate for the 2026 Convertible Notes on each such trading day; or

upon the occurrence of specified corporate events described in the Indenture.

On or after December 15, 2025 until the close of business on the second scheduled trading day immediately preceding the applicable June 15, 2026, the holders of the 2026 Convertible Notes may convert their 2026 Convertible Notes, in multiples of $1,000 principal amount, regardless of the foregoing conditions.

Upon the occurrence of fundamental changes, as described in the Indenture, prior to the maturity date of the 2026 Convertible Notes, holders of such notes may require the Company to repurchase for cash all or a portion of their notes at a repurchase price equal to 100% of the principal amount of the notes to be repurchased, plus accrued and unpaid interest. If a make-whole fundamental change, as described in the Indenture, occurs and a holder elects to convert its notes in connection with such make-whole fundamental change, such holder may be entitled to an increase in the conversion rate as described in the Indenture.

The Indenture does not contain any financial covenants or restrict the Company’s ability to repurchase the Company’s securities, pay dividends or make restricted payments in the event of a transaction that substantially increases the Company’s level of indebtedness. The Indenture provides for customary events of default. In the case of an event of default arising from specified events of bankruptcy or insolvency, all outstanding notes will become due and payable immediately without further action or notice. If any other event of default under the Indenture occurs or is continuing, the Trustee or holders of at least 25% in aggregate principal amount of the then outstanding notes may declare the principal amount of such notes to be immediately due and payable.

The Company accounts for convertible debt instruments as a single liability measured at amortized cost.

The Company’s outstanding balances for the convertible senior notes consisted of the following (in thousands):

2024

2023

Principal:

    

 

2024 Convertible Notes

$

$

200,000

2026 Convertible Notes

200,000

200,000

Less: unamortized debt issuance costs

(1,012)

(2,131)

Net carrying amount

$

198,988

$

397,869

 

In connection with the issuance of the 2024 Convertible Notes and the 2026 Convertible Notes, the Company incurred $9.0 million of debt issuance costs, which primarily consisted of initial purchaser’s discounts and legal and other professional fees. The debt issuance costs are reflected as a reduction in the carrying value of the convertible senior notes and recorded as interest expense over the life of the 2024 Convertible Notes and the 2026 Convertible Notes.

The Company determined the expected life of the 2024 Convertible Notes and the 2026 Convertible Notes was equal to their approximately five and seven-year terms, respectively. The effective annual interest rate of the 2024 Convertible Notes for the period from the date of issuance through maturity was 1.2%. The effective annual interest rate of the 2026 Convertible Notes for the period from the date of issuance through December 31, 2024 was 1.9%. The effective annual interest rate is computed using the contractual interest and the amortization of debt issuance costs.

The following table sets forth total interest expense recognized related to convertible senior notes (in thousands):

Year Ended December 31, 

 

2024

    

2023

2022

Contractual interest expense

$

3,688

$

4,500

$

5,745

Amortization of debt issuance costs

1,119

1,618

1,853

Total interest expense

$

4,807

$

6,118

$

7,598

 

Future minimum payments under the convertible senior notes as of December 31, 2024, are as follows (in thousands):

2025

$

3,000

2026

201,500

Total future minimum payments under the convertible senior notes

 

204,500

Less: amounts representing interest

(4,500)

Less: unamortized debt issuance costs

(1,012)

Convertible senior notes balance

$

198,988

 

Capped Calls with Respect to 2024 Convertible Notes and 2026 Convertible Notes

To minimize the impact of potential dilution to the Company’s Class A common stockholders upon conversion of the 2024 Convertible Notes and the 2026 Convertible Notes, the Company separately entered into the capped call transactions in August 2019 (the “Capped Calls”) in connection with the issuance of the 2024 Convertible Notes and the 2026 Convertible Notes. The Company paid the counterparties $25.2 million to enter into the Capped Calls, of which $25.0 million related to the premium payments and $0.2 million related to transaction costs. These instruments meet the conditions outlined in ASC 815 to be classified in stockholders’ equity and are not subsequently remeasured as long as the conditions for equity classification continue to be met.

The Capped Calls in connection with the issuance of the 2024 Convertible Notes, which covered 14,933,740 shares of Class A Common Stock, terminated unexercised upon expiry in June 2024.

The Capped Calls in connection with the 2026 Convertible Notes have an initial strike price of approximately $13.39 per share, which corresponds to the initial conversion price of the 2026 Convertible Notes and is subject to anti-dilution adjustments generally similar to those applicable to the 2026 Convertible Notes. The Capped Calls have a cap price of approximately $17.05 per share, subject to certain adjustments. The Capped Calls cover 14,933,740 shares of Class A Common Stock (subject to anti-dilution and certain other adjustments), which is the same number of shares of Class A Common Stock that initially underlie the 2026 Convertible Notes. Holders of the 2026 Convertible Notes do not have any rights with respect to the Capped Calls.

The Capped Calls are expected generally to reduce the potential dilution to the Class A Common Stock upon conversion of the 2026 Convertible Notes in the event that the market price per share of Class A Common Stock is greater than the strike price of the Capped Calls as adjusted pursuant to the anti-dilution adjustments. If, however, the market price per share of Class A Common Stock exceeds the cap price of the Capped Calls, there would nevertheless be dilution upon conversion of the 2026 Convertible Notes to the extent that such market price exceeds the cap price of the Capped Calls.

Revolving Credit Facility

In May 2023, in connection with the VectivBio Acquisition, the Company entered into a credit agreement with Wells Fargo Bank, N.A., as administrative agent (in such capacity, the “Agent”), collateral agent, a letter of credit issuer and a lender, and the other agents, lenders and letter of credit issuers parties thereto (collectively, the “Lenders”). In September 2024, the Company, the Agent and the Lenders entered into the first amendment to the revolving credit agreement (as amended from time to time, the “Revolving Credit Agreement”) to, among other things, increase the quantum of the Revolving Credit Facility from $500.0 million to $550.0 million, extend the maturity date, and increase the Company’s permitted maximum consolidated secured net leverage ratio.

The Revolving Credit Agreement provides for a $550.0 million secured revolving credit facility (the "Revolving Credit Facility”), which includes a $10.0 million letter of credit subfacility, and loans made thereunder will mature on the earliest to occur of (i) December 31, 2028 or (ii) the date that is 91 days prior to the stated maturity date of the Company’s existing convertible notes then outstanding, unless, in the case of clause (ii), the Company’s minimum liquidity equals or exceeds certain agreed levels.

At the Company’s election, borrowings under the Revolving Credit Agreement will bear interest at a rate equal to (a) Adjusted Term Secured Overnight Financing Rate (“Adjusted Term SOFR”) (as defined in Revolving Credit Agreement) plus the applicable rate (ranging from 1.75% to 3.00%) or (b) the highest of (1) the weighted average overnight Federal funds rate, as published by the Federal Reserve Bank of New York, plus one half of 1.0%, (2) the prime lending rate or (3) the one-month Adjusted Term SOFR plus 1.0% in effect from time to time plus the applicable rate (ranging from 0.75% to 2.00%). The applicable rates are based on the Company’s consolidated secured net leverage ratio (as defined under the Revolving Credit Facility) at the time of the applicable borrowing.

The Company pays a quarterly commitment fee of 0.30% to 0.425% on the daily amount by which the commitments under the Revolving Credit Agreement exceed the outstanding loans and letters of credit.

The loans and other obligations under the Revolving Credit Agreement are secured by substantially all of the Company’s personal property, including a pledge of all the capital stock of subsidiaries held directly by the Company or

any subsidiary that guarantees the Revolving Credit Agreement following the closing date (which pledge, in the case of any foreign subsidiary, is limited to 65% of the voting stock), subject to certain customary exceptions and limitations. The Revolving Credit Agreement generally prohibits any other liens on the assets of the Company and its restricted subsidiaries, subject to certain exceptions as described in the Revolving Credit Agreement.

Under the terms of the Revolving Credit Agreement, the Company will be able to request an increase in the commitments or the addition of a term loan secured by a pari passu lien on the collateral of up to an additional amount equal to the greater of $200.0 million and 100% of the trailing twelve-month Consolidated Adjusted EBITDA (as defined in the Revolving Credit Agreement) upon satisfaction of customary conditions, including receipt of commitments from either new lenders or increased commitments from existing lenders.

The Revolving Credit Agreement contains certain customary covenants applicable to the Company and its Restricted Subsidiaries (as defined in the Revolving Credit Agreement). The Company is required to maintain a maximum consolidated secured net leverage ratio of 3.50 to 1.00 until the end of the final quarter of 2025 (the “Initial Period”), (ii) 3.25 to 1.00 until the end of the first quarter of 2026 (the “Interim Period”) and (iii) 3.00 to 1.00 thereafter, and a minimum interest coverage ratio of 3.00 to 1.00, in each case at the end of each fiscal quarter. The Revolving Credit Agreement allows the Company to elect to increase the permitted maximum consolidated secured net leverage ratio to (i) 4.00 to 1.00 during the Initial Period, (ii) 3.75 to 1.00 during the Interim Period and (iii) 3.50 to 1.00 thereafter, in each case for up to four fiscal quarters in the event it consummates an acquisition for consideration in excess of $50.0 million, subject to certain limitations on how often this election can be made. As of December 31, 2024, the Company was in compliance with all covenants under the Revolving Credit Agreement.

In connection with the initial execution of the Revolving Credit Agreement during the second quarter of 2023 and the amendment executed in the third quarter of 2024, the Company incurred $2.9 million and $2.2 million of debt issuance costs, respectively, which consisted primarily of lender fees. The debt issuance costs are classified as other assets and are amortized on a straight-line basis over the term of the Revolving Credit Agreement. The Company had unamortized capitalized debt issuance costs of $3.9 million and $2.4 million at December 31, 2024 and 2023, respectively.

The outstanding principal balance on the revolving credit facility was $385.0 million and $300.0 million as of December 31, 2024 and 2023, respectively.

The following table sets forth total interest expense recognized related to Revolving Credit Agreement (in

thousands):

Year Ended December 31, 

2024

    

2023

Contractual interest expense

$

27,643

$

14,718

Amortization of debt issuance costs

785

442

Other financing costs

50

101

Total interest expense

$

28,478

$

15,261

 

 

 

v3.25.1
Commitments and Contingencies
12 Months Ended
Dec. 31, 2024
Disclosure Text Block  
Commitments and Contingencies

11. Commitments and Contingencies

Commitments with AbbVie

The Company and AbbVie are jointly obligated to make minimum purchases of linaclotide API for the territories covered by the Company’s collaboration with AbbVie for North America. Currently, AbbVie fulfills all such minimum purchase commitments.

Under the collaboration agreement with AbbVie for North America, the Company shares all development and commercialization costs related to linaclotide in the U.S. with AbbVie. The actual amounts that the Company pays to AbbVie or that AbbVie pays to the Company will depend on numerous factors outside of the Company’s control, including the success of certain clinical development efforts with respect to linaclotide, the content and timing of decisions made by the regulators, the reimbursement and competitive landscape around linaclotide and the Company’s other product candidates, and other factors.

Other Funding Commitments

As of December 31, 2024, the Company has ongoing studies in various pre-clinical and clinical trial stages. The Company’s most significant clinical trial expenditures are to contract research organizations. These contracts are generally cancellable, with notice, at the Company’s option and do not have any significant cancellation penalties.

Guarantees

As permitted under Delaware law, the Company indemnifies its directors and certain of its officers for certain events or occurrences while such director or officer is, or was, serving at the Company’s request in such capacity. The maximum potential amount of future payments the Company could be required to make is unlimited; however, the Company has directors’ and officers’ insurance coverage that is intended to limit its exposure and enable it to recover a portion of any future amounts paid.

The Company enters into certain agreements with other parties in the ordinary course of business that contain indemnification provisions. These typically include agreements with business partners, contractors, landlords, clinical sites and customers. Under these provisions, the Company generally indemnifies and holds harmless the indemnified party for losses suffered or incurred by the indemnified party as a result of the Company’s activities. These indemnification provisions generally survive termination of the underlying agreements. The maximum potential amount of future payments the Company could be required to make under these indemnification provisions is unlimited. However, to date the Company has not incurred material costs to defend lawsuits or settle claims related to these indemnification provisions. As a result, the estimated fair value of these obligations is minimal. Accordingly, the Company did not have any liabilities recorded for these obligations as of December 31, 2024 and 2023.

Litigation

From time to time, the Company is involved in various legal proceedings and claims, either asserted or unasserted, which arise in the ordinary course of business. While the outcome of these other claims cannot be predicted with certainty, management does not believe that the outcome of any of these ongoing legal matters, individually and in aggregate, will have a material adverse effect on the Company’s consolidated financial statements.

v3.25.1
Stockholders' Equity
12 Months Ended
Dec. 31, 2024
Disclosure Text Block  
Stockholders' Equity

12. Stockholders’ Equity

Preferred Stock

The Company’s preferred stock may be issued from time to time in one or more series, with each such series to consist of such number of shares and to have such terms as adopted by the board of directors. Authority is given to the board of directors to determine and fix such voting powers, full or limited, or no voting powers, and such designations, preferences and relative participating, optional or other special rights, and qualifications, limitation or restrictions thereof, including without limitation, dividend rights, conversion rights, redemption privileges and liquidation preferences.

Common Stock

The Company has one class of common stock (“Class A Common Stock”). Class A Common Stock is entitled to one vote per share. The Company has reserved, out of its authorized but unissued shares of Class A Common Stock, sufficient shares to effect the conversion of the convertible senior notes and the Note Hedge Warrants pursuant to the terms thereof (Note 10).

The Company’s stockholders are entitled to dividends if and when declared by the board of directors.

Share Repurchase Program

In May 2021, the Company’s Board of Directors authorized a program to repurchase up to $150.0 million of the

Company’s Class A Common Stock. The Company completed the share repurchase program in May 2022 and retired the repurchased shares.

During the year ended December 31, 2022, the Company repurchased 10.8 million shares of Class A Common Stock at an aggregate cost of $123.4 million. For the overall program, under which repurchases commenced in December 2021, the Company repurchased 13.1 million shares of Class A Common Stock at an average price per share of $11.47.

v3.25.1
Employee Stock Benefit Plans
12 Months Ended
Dec. 31, 2024
Disclosure Text Block  
Employee Stock Benefit Plans

13. Employee Stock Benefit Plans

The Company has several share-based compensation plans under which stock options, RSAs, RSUs, and other share-based awards are available for grant to employees, officers, directors and consultants of the Company.

The following table summarizes share-based compensation expense by award type (in thousands):

Year Ended December 31, 

    

2024

    

2023

    

2022

Stock options

$

$

226

$

1,471

Time-based restricted stock units

21,425

19,829

17,643

Performance-based restricted stock units

 

6,422

 

9,321

 

5,008

Restricted stock awards

 

1,492

 

1,997

 

2,439

Employee stock purchase plan

 

451

 

502

 

412

Stock awards

60

130

 

75

VectivBio Holding AG stock options and RSUs accelerated upon change in control

 

 

27,548

 

Total share-based compensation expense

$

29,850

$

59,553

$

27,048

 

The following table summarizes the share-based compensation expense reflected in the consolidated statements of income (in thousands):

Year Ended December 31, 

 

2024

    

2023

    

2022

Share-based compensation expense:

Research and development

$

7,552

$

17,448

$

4,936

Selling, general and administrative

 

22,298

 

41,194

 

22,112

Restructuring

911

Total share-based compensation expense included in operating expenses

29,850

59,553

27,048

Income tax benefit

3,414

2,964

1,644

Total share-based compensation expense, net of tax

$

26,436

$

56,589

$

25,404

 

In connection with the VectivBio Acquisition, the Company incurred $27.5 million of share-based compensation expense during the second quarter of 2023 related to the vesting acceleration and settlement of outstanding VectivBio stock options and RSUs under VectivBio’s 2021 Equity Incentive Plan, of which $11.3 million was recorded within research and development expense and $16.2 million was recorded within selling, general and administrative expenses.

Restructuring expenses include modifications to share-based awards held by employees impacted by various workforce reductions (Note 16).

Stock Benefit Plans

As of December 31, 2024, the Company has the following active stock benefit plans pursuant to which awards are currently outstanding: the Amended and Restated 2019 Equity Incentive Plan (the “A&R 2019 Equity Plan”), the 2019 Equity Incentive Plan (the “2019 Equity Plan”), the Amended and Restated 2010 Employee Stock Purchase Plan (the “2010 Purchase Plan”) and the Amended and Restated 2010 Employee, Director, and Consultant Equity Incentive Plan (the “2010 Equity Plan”). At December 31, 2024, there were 12,606,159 shares available for future grant under the A&R 2019 Equity Plan and the 2010 Purchase Plan.

A&R 2019 Equity Plan

During 2023, the Company’s stockholders approved the A&R 2019 Equity Plan under which stock options, RSAs, RSUs, and other stock-based awards may be granted to employees, officers, directors, or consultants of the Company. Under the A&R 2019 Equity Plan, 6,000,000 shares of Class A Common Stock were initially reserved for issuance. Subsequent to the approval of the A&R 2019 Equity Plan, shares available for grant under the 2019 Equity Plan are made available for grant under the A&R 2019 Equity Plan and awards that are returned to the A&R 2019 Equity Plan, 2019 Equity Plan and 2010 Equity Plan as a result of their expiration, cancellation, termination or repurchase are automatically made available for future grant under the A&R 2019 Equity Plan. As of December 31, 2024, 8,523,616 shares were available for future grant under the A&R 2019 Equity Plan.

2019 Equity Plan

During 2019, the Company’s stockholders approved the 2019 Equity Plan under which stock options, RSAs, RSUs, and other stock-based awards may be granted to employees, officers, directors, or consultants of the Company. Under the 2019 Equity Plan, 10,000,000 shares of Class A Common Stock were initially reserved for issuance. Prior to the approval of the A&R 2019 Equity Plan, awards that were returned to the 2010 Equity Plan as a result of their expiration, cancellation, termination or repurchase were automatically made available for issuance under the 2019 Equity Plan and awards that expired, cancelled, terminated, or were repurchased under the 2019 Equity Plan were no longer available for future grant. As of December 31, 2024, there were no shares available for future grant under the 2019 Equity Plan.

2010 Purchase Plan

During 2010, the Company’s stockholders approved the 2010 Purchase Plan, which gives eligible employees the right to purchase shares of common stock at the lower of 85% of the fair market value on the first or last day of an offering period. Each offering period is six months. There were 400,000 shares of common stock initially reserved for issuance pursuant to the 2010 Purchase Plan. The number of shares available for future grant under the 2010 Purchase Plan may be increased on the first day of each fiscal year by an amount equal to the lesser of: (i) 1,000,000 shares, (ii) 1% of the Class A shares of common stock outstanding on the last day of the immediately preceding fiscal year, or (iii) such lesser number of shares as is determined by the board of directors. As of December 31, 2024, there were 4,082,543 shares available for future grant under the 2010 Purchase Plan.

2010 Equity Plan

The 2010 Equity Plan provided for the granting of stock options, RSAs, RSUs, and other share-based awards to employees, officers, directors, consultants, or advisors of the Company. As of December 31, 2024, there were no shares available for future grant under the 2010 Equity Plan.

Restricted Stock Awards

RSAs are granted to non-employee members of the board of directors under restricted stock agreements in accordance with the terms of the 2019 Equity Plan and the Company’s non-employee director compensation policy, effective May 2019. Annual restricted stock grants to each non-employee member of the board of directors vest in full on the date immediately preceding the next annual meeting of stockholders, provided the individual continues to serve on the Company’s board of directors through each vest date. Initial restricted stock grants to new non-employee members of the board of directors vest annually over a three-year period from the date of grant provided the individual continues to serve on the Company’s board of directors through each vest date.

A summary of restricted stock activity for the year ended December 31, 2024 is presented below:

Weighted-

    

    

Average

Number of

Grant Date

Shares

Fair Value

Unvested as of December 31, 2023

 

178,800

$

10.77

Granted

 

194,488

5.70

Vested

 

(178,800)

10.77

Forfeited

 

Unvested as of December 31, 2024

 

194,488

$

5.70

 

The weighted-average grant date fair value per share of RSAs granted during the years ended December 31, 2024, 2023, and 2022 was $5.70, $10.77, and $11.22, respectively. The total fair value of RSAs that vested during the years ended December 31, 2024, 2023, and 2022 was $1.0 million, $2.1 million, and $2.8 million, respectively.

Restricted Stock Units

RSUs granted under the Company’s equity plans represent the right to receive one share of the Company’s Class A Common Stock pursuant to the terms of the applicable award agreement. Shares of the Company’s Class A Common Stock are delivered to the employee upon vesting, subject to payment of applicable withholding taxes.

Time-based RSUs

Time-based RSUs generally vest over a two-to-four-year period on the approximate anniversary of the date of grant until fully vested, provided the individual remains in continuous service with the Company through each vesting date. The fair value of all time-based RSUs is based on the market value of the Company's Class A Common Stock on the date of grant. Compensation expense, including the effect of estimated forfeitures, is recognized over the applicable service period.

A summary of time-based RSU activity for the year ended December 31, 2024 is as follows:

Weighted-

Average

Number

Grant Date

    

 of RSUs

    

  Fair Value

Outstanding as of December 31, 2023

 

5,342,727

$

10.68

Granted

3,105,866

11.53

Vested and released

(1,886,372)

10.77

Forfeited

(1,210,714)

11.79

Outstanding as of December 31, 2024

 

5,351,507

$

10.89

 

The weighted-average grant date fair value per share of time-based RSUs granted during the years ended December 31, 2024, 2023, and 2022 was $11.53, $10.55, and $11.08, respectively. The total fair value of time-based RSUs that vested during the years ended December 31, 2024, 2023, and 2022 was $22.0 million, $18.3 million, and $14.8 million, respectively.

Performance-based RSUs

Performance-based RSUs (“PSUs”) are granted to certain executives. PSUs currently outstanding vest upon the achievement of specified performance criteria over a three-year performance period, generally subject to the executive remaining in continuous service with the Company through the applicable vesting dates. The performance criteria applicable to the PSUs granted in 2022 were realizing relative total shareholder return goals (the “Relative TSR PSUs”). The performance criteria applicable to the PSUs granted in 2024 and 2023 consisted of an equal weighting of (i) Relative TSR PSUs and (ii) achieving specified stock price targets (the “Absolute TSR PSUs”).

The Relative TSR PSUs and Absolute TSR PSUs are valued using the Monte Carlo simulation method on the date of grant. The weighted average assumptions used to estimate the fair value of Relative TSR PSUs and Absolute TSR PSUs were as follows for the years ended December 31, 2024, 2023, and 2022:

Year Ended December 31, 

2024

    

2023

    

2022

Relative

Absolute

Relative

Absolute

Relative

TSR PSUs

TSR PSUs

TSR PSUs

TSR PSUs

TSR PSUs

Fair value of common stock

$

12.41

$

12.41

$

11.39

$

10.74

$

11.13

Expected volatility

38.0

%  

38.0

%  

 

37.0

%  

37.0

%  

 

41.7

%  

Expected term (in years)

3.0

3.0

 

3.0

3.0

 

2.8

Risk-free interest rate

4.2

%  

4.2

%  

 

4.7

%  

4.7

%  

 

1.6

%  

Expected dividend yield

%  

%  

 

%  

%  

 

%  

 

A summary of PSU activity for the year ended December 31, 2024 is as follows:

Weighted-

Average

Number

Grant Date

    

 of PSUs

    

  Fair Value

Outstanding as of December 31, 2023

 

1,653,268

$

14.55

Granted

540,636

14.91

Vested and released

(802,800)

12.84

Forfeited

(282,598)

17.36

Outstanding as of December 31, 2024

 

1,108,506

$

13.91

 

 

The weighted-average grant date fair value per share of PSUs granted during the years ended December 31, 2024, 2023, and 2022 was $14.91, $14.09, and $14.30, respectively. The total fair value of PSUs that vested during the years ended December 31, 2024, 2023, and 2022 was $9.8 million, $0.8 million and $1.7 million, respectively.

Stock Options

Stock options granted under the Company’s equity plans represent the right to purchase one share of the Company’s Class A Common Stock pursuant to the terms of the applicable award agreement. Shares of the Company's Class A Common Stock are delivered to the employee upon exercise, subject to payment of applicable withholding taxes.

The Company ceased granting stock options during the year ended December 31, 2020. Stock options previously granted under the Company’s equity plans generally have a ten-year term and vest over a period of four years, provided the individual continues to serve at the Company through the vesting dates. Options granted under all equity plans are exercisable at a price per share not less than the fair market value of the underlying common stock on the date of grant. The estimated fair value of options, including the effect of estimated forfeitures, is recognized over the requisite service period, which is typically the vesting period of each option.

The following table summarizes stock option activity under the Company’s share-based compensation plans:

    

    

    

    

    

Weighted-

Weighted-

Number of

Average

Average

Aggregate

Stock

Exercise

Contractual

Intrinsic

Options

Price(1)

Life

Value

(in years)

(in thousands)

Outstanding at December 31, 2023

 

5,836,306

$

12.36

2.56

$

2,920

Granted

 

Exercised

 

(825,416)

12.19

Cancelled

 

(470,626)

12.51

Outstanding at December 31, 2024

 

4,540,264

12.37

1.97

Vested or expected to vest at December 31, 2024

 

4,540,264

12.37

1.97

Exercisable at December 31, 2024

 

4,540,264

12.37

1.97

(1)Amounts relating to stock options granted prior to the separation of the Company’s soluble guanylate cycle business, and certain other assets and liabilities, into Cyclerion Therapeutics, Inc. (the “Separation) on April 1, 2019 have not been adjusted to reflect the effect of the Separation on the Company’s stock price.

 

The total intrinsic value of options exercised during the years ended December 31, 2024, 2023, and 2022 was $2.0 million, $0.2 million, and $0.9 million, respectively. The intrinsic value was calculated as the difference between the fair value of the Company’s Class A Common Stock at the date of exercise and the exercise price of the option issued.

The following table sets forth the Company's unrecognized share-based compensation expense, net of estimated forfeitures, as of December 31, 2024, by type of award and the weighted-average period over which that expense is expected to be recognized:

    

Unrecognized  

    

Weighted-Average

Expense, Net  

Remaining

of Estimated

Recognition

Forfeitures

Period

(in thousands)

(in years)

Type of award:

Restricted stock awards

$

513

0.46

Time-based restricted stock units

32,147

2.31

Performance-based restricted stock units

3,015

1.82

 

The total unrecognized share-based compensation cost will be adjusted for future changes in estimated forfeitures.

v3.25.1
Income Taxes
12 Months Ended
Dec. 31, 2024
Disclosure Text Block  
Income Taxes

14. Income Taxes

The Company is subject to U.S. federal, state, and foreign income taxes. The components of income (loss) before income taxes during the years ended on December 31, 2024, 2023, and 2022 consisted of the following (in thousands):

Year Ended December 31, 

2024

    

2023

    

2022

United States

$

167,091

$

226,532

$

252,422

Foreign

 

(101,893)

(1,174,601)

Income (loss) before income taxes

$

65,198

$

(948,069)

$

252,422

 

The components of the provision for (benefit from) income taxes during the years ended December 31, 2024, 2023, and 2022 consisted of the following (in thousands):

Year Ended December 31, 

    

2024

    

2023

    

2022

Current taxes:

Federal

$

$

$

State

 

(4,487)

10,587

11,618

Foreign

 

754

346

Total current taxes

(3,733)

10,933

11,618

Deferred taxes:

Federal

 

32,584

47,864

52,191

State

35,467

24,693

13,548

Foreign

Total deferred taxes

68,051

72,557

65,739

Income tax expense

$

64,318

$

83,490

$

77,357

 

During the year ended December 31, 2024, the Company recorded income tax expense of $64.3 million, comprised of non-cash tax expense of $57.8 million and cash tax expense of $6.5 million for state income taxes in certain states in which state taxable income exceeded available net operating losses. During the year ended December 31, 2023, the Company recorded income tax expense of $83.5 million, comprised of non-cash tax expense of $74.1 million and cash tax expense of $9.4 million for state income taxes in certain states in which state taxable income exceeded available net operating losses. During the year ended December 31, 2022, the Company recorded income tax expense of $77.4 million, comprised of non-cash tax expense of $73.4 million and cash tax expense of $4.0 million for state income taxes in certain states in which state taxable income exceeded available net operating losses. Due to the Company’s ability to utilize its net operating losses to offset federal taxable income and taxable income in many states, the majority of the Company’s tax provision is a non-cash tax expense until the Company’s net operating losses have been fully utilized.

A reconciliation of income taxes computed using the U.S. federal statutory rate of 21% to that reflected in the consolidated statements of income (loss) are as follows (in thousands):

Year Ended December 31, 

    

2024

    

2023

    

2022

Income tax expense (benefit) using U.S. federal statutory rate

$

13,692

$

(199,094)

$

53,009

Acquisition accounting for VectivBio Acquisition

139,301

Foreign tax rate differential

8,111

93,394

Disallowed transaction costs

3,424

Permanent differences

 

788

 

704

 

(290)

State income taxes, net of federal benefit

 

10,992

 

14,024

 

16,160

Executive compensation - Section 162(m)

2,683

3,979

2,654

Excess tax benefits

749

1,903

3,613

Fair market valuation of Note Hedge Warrants and Convertible Note Hedges

(5)

(50)

Tax credits

 

(1,244)

 

(79)

 

(252)

Expiring net operating losses and tax credits

 

1,187

 

933

 

1,087

Effect of change in state tax rate on deferred tax assets and deferred tax liabilities

 

1,538

 

2,134

 

2,581

Change in the valuation allowance

 

25,564

 

22,492

 

(1,155)

Other

258

380

Income tax expense

$

64,318

$

83,490

$

77,357

 

The Company recognizes deferred tax assets and liabilities for the expected future tax consequences of temporary differences between the financial reporting and tax bases of assets and liabilities. These differences are measured using the enacted statutory tax rates that are expected to be in effect for the years in which differences are expected to reverse. Deferred tax assets and liabilities were determined based on the difference between financial statement and tax bases using enacted tax rates in effect for the year in which the differences are expected to reverse.

December 31,

    

2024

    

2023

Deferred tax assets:

Net operating loss carryforwards

$

146,978

$

105,401

Tax credit carryforwards

 

58,494

 

58,437

Capitalized research and development

 

22,350

 

18,267

Share-based compensation

9,508

12,323

Basis difference on collaboration agreement for North America with AbbVie

3,585

80,638

Accruals and reserves

3,804

7,149

Basis difference on Convertible Notes

714

1,613

Intangible assets

3,411

10,968

Operating lease liability

3,892

4,774

Other

 

1,452

 

1,810

Total deferred tax assets

 

254,188

 

301,380

Deferred tax liabilities:

Fixed assets

(898)

(1,101)

Operating lease right-of-use asset

(2,777)

(2,306)

Total deferred tax liabilities

(3,675)

(3,407)

Net deferred tax asset

250,513

297,973

Valuation allowance

 

(106,279)

 

(85,649)

Net deferred tax asset

$

144,234

$

212,324

 

On a periodic basis, the Company reassesses the valuation allowance on its deferred income tax assets weighing positive and negative evidence to assess the recoverability of the deferred tax assets. As of December 31, 2024, the Company maintained a valuation allowance of $106.3 million on deferred tax assets not expected to be realized, related primarily to deferred tax assets acquired in the VectivBio Acquisition comprised primarily of net operating loss carryforwards in Switzerland, as well as certain state net operating losses and state tax credits that are expected to expire prior to utilization. As of December 31, 2023, the Company maintained a valuation allowance of $85.6 million on deferred tax assets not expected to be realized, related primarily to deferred tax assets acquired in the VectivBio Acquisition comprised primarily of net operating loss carryforwards in Switzerland, as well as certain tax credits that are expected to expire prior to utilization.

The valuation allowance increased by $20.6 million during the year ended December 31, 2024 primarily to offset the foreign net operating losses incurred in Switzerland, to offset certain state net operating losses that are expected to expire prior to utilization, and to offset certain US tax credits that are expected to expire prior to utilization.

The valuation allowance increased by $82.6 million during the year ended December 31, 2023 primarily to offset the acquired foreign net operating losses from the VectivBio Acquisition, as well as in response to a state tax law change enacted in October 2023, in which the Company increased its valuation allowance on certain state tax credits that are expected to expire prior to utilization. Additionally, the Company increased its reserves for uncertain tax positions by $11.0 million in the second quarter of 2023 in connection with a liability assumed in the VectivBio Acquisition.

Subject to the limitations described below, at December 31, 2024, the Company had federal net operating loss carryforwards of $260.5 million, of which $130.9 million is subject to expiration between 2035 and 2038 and $129.6 million may be carried forward indefinitely. As of December 31, 2024, the Company had state net operating loss carryforwards of $288.0 million to offset future state taxable income, which is subject to expiration at various dates through 2039. The Company also had tax credit carryforwards of $62.9 million as of December 31, 2024 to offset future federal and state income taxes, which is subject to expiration at various dates through 2044. The Company had foreign net operating loss carryforwards of $617.8 million, which are subject to expiration at various dates through 2031.

Utilization of federal and state net operating loss carryforwards and research and development credit carryforwards may be subject to a substantial annual limitation due to ownership change limitations that could occur in the future in accordance with Section 382 of the Internal Revenue Code of 1986 (“IRC Section 382”) and with Section 383 of the Internal Revenue Code of 1986, as well as similar state provisions. These ownership changes may limit the amount of net operating loss carryforwards and research and development credit carryforwards that can be utilized annually to offset future taxable income and taxes, respectively. In general, an ownership change, as defined by IRC

Section 382, results from transactions increasing the ownership of certain stockholders or public groups in the stock of a corporation by more than 50 percentage points over a three-year period.

The following table summarizes the changes in the Company’s unrecognized income tax benefits for the years ended December 31, 2024, 2023, and 2022 (in thousands):

    

December 31, 

2024

2023

2022

Balance at the beginning of the period

$

98,218

$

102,625

$

84,606

Increases based on tax positions related to the current period

4,093

85,446

101,225

Increases for tax positions assumed in VectivBio Acquisition

11,372

Decreases for tax positions in prior periods

(90,726)

(101,225)

(83,206)

Balance at the end of the period

$

11,585

$

98,218

$

102,625

 

The Company had gross unrecognized tax benefits of $11.6 million, $98.2 million, and $102.6 million as of December 31, 2024, 2023, and 2022, respectively. Of the $11.6 million of total unrecognized tax benefits at December 31, 2024, $7.5 million would, if recognized, affect the Company’s effective tax rate, and the remaining amount would not affect the Company’s effective tax rate, as it relates to a temporary timing difference. Reserves for uncertain tax positions of $11.8 million and $23.0 million are recorded in other liabilities on the Company’s consolidated balance sheets as of December 31, 2024 and 2023, respectively.

The Company recognizes interest and penalties, if any, related to uncertain tax positions in income tax expense. The Company recognized $0.8 million, $1.0 million and an insignificant amount of interest and penalties related to uncertain tax positions during the years ended December 31, 2024, 2023, and 2022, respectively. As of December 31, 2024 and 2023, $5.1 million and $5.2 million of interest and penalties have been accrued, respectively.

The statute of limitations for assessment by the Internal Revenue Service (“IRS”) and state tax authorities is open for tax years ended December 31, 2021 through the present, although net operating losses generated from years prior to 2021 could be subject to examination and adjustments to the extent utilized in future years. There are currently no federal or state income tax audits in progress. The statute of limitations for assessment for foreign jurisdictions is open for tax years ended December 31, 2020 through the present. There are currently no foreign income tax audits in progress.

v3.25.1
Retirement Plans
12 Months Ended
Dec. 31, 2024
Disclosure Text Block  
Retirement Plans

15. Retirement Plans

Defined Contribution Retirement Plans

The Ironwood Pharmaceuticals, Inc. 401(k) Savings Plan is a defined contribution plan in the form of a qualified 401(k) plan in which substantially all employees are eligible to participate upon employment. Subject to certain IRS limits, eligible employees may elect to contribute from 1% to 100% of their compensation. Company contributions to the plan are at the sole discretion of the Company. During the years ended December 31, 2024, 2023, and 2022, the Company provided a matching contribution equal to the greater of: (a) 100% of employee contributions on the first 3% of eligible compensation and 50% of employee contributions on the next 3% of eligible compensation; or (b) 75% of the first $10,000 of employee contributions. During the years ended December 31, 2024, 2023, and 2022, the Company recorded $2.4 million, $2.2 million, and $2.2 million of expense, respectively, related to its 401(k) company match.

Defined Benefit Retirement Plans

As a result of the VectivBio Acquisition, the Company maintains defined benefit plans for employees in Switzerland and Belgium, as required by local laws. The pension plans provide employees retirement benefits and risk insurance for death and disability. The contributions of employers and employees in general are defined in percentages of the insured’s salary. The retirement pension is calculated based on the old-age credit balance on retirement multiplied by the fixed conversion rate. The employee has the option to withdraw the capital on demand. The Company updates the estimates used to measure employee benefit obligations in the fourth quarter and upon a remeasurement event to reflect the updated actuarial assumptions.

Defined benefit plans in Switzerland were comprised of a basic plan and management plan during the year ended December 31, 2023. The participants in the management plan were terminated as of December 31, 2023 and plan assets were transferred to the participants during the year ended December 31, 2024. The basic plan is the only defined benefit plan in Switzerland as of December 31, 2024. The defined benefit plan in Belgium was maintained for one employee and has been terminated as of December 31, 2024.

The following table summarizes the components of net periodic benefit costs (income) for the year ended December 31, 2024 and the period between the acquisition date of June 29, 2023 and December 31, 2023 (in thousands):

    

December 31, 

2024

2023

Current service cost

$

1,032

$

879

Amortization prior service cost

(57)

11

Amortization of unrecognized actuarial gains/(losses)

1,641

124

Interest cost

269

210

Expected return on plan assets

(416)

(235)

Curtailment and other

(2,086)

1,402

Administration costs

9

9

Total

$

392

$

2,400

 

 

The amounts recognized in other comprehensive income with respect to the defined benefit pension plans for the year ended December 31, 2024 and the period between the acquisition date of June 29, 2023 and December 31, 2023 (in thousands):

    

December 31, 

2024

2023

Amortization prior service cost

$

57

$

(11)

Prior service (cost)/credit arising during financial year

(261)

106

Amortization of unrecognized actuarial gains/(losses)

(1,641)

(124)

Remeasurement (gain)/loss

Actuarial (gains)/losses arising from plan experience

490

70

Actuarial (gains)/losses arising from demographic assumption

989

Actuarial (gains)/losses arising from financial assumptions

906

Return on plan assets excluding interest income

(604)

(92)

Expense (income) recognized in other comprehensive income

$

(1,053)

$

938

 

 

The amount included in the consolidated statements of financial position arising from the Company’s obligation in respect to its defined benefit plan as of December 31, 2024, and 2023 (in thousands):

    

December 31, 

2024

2023

Present value of defined benefit obligation

$

(18,462)

$

(37,547)

Fair value of plan assets

15,682

32,992

Net liability arising from defined benefit obligation

$

(2,780)

$

(4,555)

 

 

Movements in the present value of the defined benefit obligation for the year ended December 31, 2024, and period between the acquisition date of June 29, 2023 and December 31, 2023 (in thousands):

    

December 31, 

2024

2023

Beginning defined benefit obligation as of January 1, 2024/June 29, 2023

$

(37,547)

$

(18,865)

Current service cost

(1,032)

(879)

Contributions paid by employees

(837)

(1,214)

Interest expense on defined benefit obligation

(269)

(210)

Prior service (cost)/credit arising during financial year

261

(106)

Curtailment

2,086

(1,402)

Remeasurement (gain)/loss on defined benefit obligation

(1,396)

(1,059)

Benefits (paid)/deposited

18,144

(11,813)

Foreign currency exchange (gains)/loss

2,128

(1,999)

Ending defined benefit obligation as of December 31

$

(18,462)

$

(37,547)

 

 

Movements in the fair value of plan assets for the year ended December 31, 2024, and period between the acquisition date of June 29, 2023 and December 31, 2023 (in thousands):

    

December 31, 

2024

2023

Beginning fair value of plan assets as of January 1, 2024/June 29, 2023

$

32,992

$

16,693

Return on plan assets excluding interest income

416

235

Contributions paid by employer

837

1,215

Contributions paid by employees

837

1,214

Benefits (paid)/deposited

(18,144)

11,813

Actuarial gain/(loss) on plan assets

602

92

Administration expense

(9)

(9)

Foreign currency exchange gains/(losses)

(1,849)

1,739

Ending fair value of plan assets as of December 31

$

15,682

$

32,992

 

 

The allocation of the assets of the different asset classes in the Switzerland basic plan corresponds to (in thousands):

December 31, 

2024

2023

Fixed income

$

9,566

61

%

$

12,143

60

%

Equities

3,921

25

5,060

25

Real estate

1,568

10

2,024

10

Other

627

4

1,012

5

Ending fair value of plan assets as of December 31

$

15,682

100

%

$

20,239

100

%

 

 

Assets in the preceding table are predominantly Level 2 assets in the fair value hierarchy, except for certain mortgage-backed securities valued at $1.9 million and $2.6 million at December 31, 2024 and 2023, respectively, which are Level 3 assets in the fair value hierarchy.

The amounts reflected in the preceding table as of December 31, 2023 represent the allocation of assets for the Switzerland basic plan. The allocation of assets for the Switzerland management plan as of December 31, 2023 were not made available to the Company, as investment decisions are made by plan participants.

Principal assumptions used for the purpose of the actuarial valuations were as follows:

    

December 31, 

2024

2023

Discount rate

1.00

%

1.50

%

Expected return on assets

2.50

%

2.70

%

Expected rate of salary increase

1.65

%

2.25

%

Expected rate of pension increase

%

%

Mortality rate

BVG 2020 GT

BVG 2020 GT

 

 

Future expected benefit payments based on the assumptions in the preceding table are as follows (in thousands):

2025

$

6,502

2026

528

2027

1,055

2028

922

2029 and thereafter

4,276

Total

$

13,283

 

 

 

v3.25.1
Workforce Reduction and Restructuring
12 Months Ended
Dec. 31, 2024
Disclosure Text Block  
Workforce Reduction and Restructuring

16. Workforce Reductions and Restructuring

In April 2023, the Company reduced its workforce by approximately 10% of its headquarters-based personnel in an effort to further strengthen the operational efficiency of the organization. The workforce reduction was substantially completed during the second quarter of 2023. The Company recorded $3.4 million of restructuring expenses and adjustments, which are primarily comprised of employee severance, benefits and related costs, during the year ended December 31, 2023.

In June 2023, the Company commenced the elimination of certain positions in connection with the VectivBio

Acquisition. The majority of the eliminations were substantively completed during the year ended December 31, 2023. The Company recorded $2.6 million and $14.9 million of restructuring expenses, which are primarily comprised of employee severance, benefits and related costs, during the year ended December 31, 2024 and 2023, respectively.

The following table summarizes the accrued liabilities activity recorded in connection with the reductions in workforce and related restructuring activities during the year ended December 31, 2024 and 2023, respectively (in thousands):

Amounts

Amounts

Accrued at

Accrued at

    

December 31, 2023

 

Charges

Amount Paid

Adjustments

December 31, 2024

Headquarters-based workforce reduction

$

270

$

(270)

$

VectivBio Acquisition-related workforce reduction

8,102

2,612

(9,990)

(109)

615

Total

 

$

8,372

$

2,612

$

(10,260)

$

(109)

$

615

 

 

Amounts

Amounts

Accrued at

Accrued at

December 31, 2022

 

Charges

Amount Paid

Adjustments

December 31, 2023

Headquarters-based workforce reduction

$

$

2,540

$

(2,232)

$

(38)

$

270

VectivBio Acquisition-related workforce reduction

14,903

(7,181)

380

8,102

Total

$

$

17,443

$

(9,413)

$

342

$

8,372

 

 

In January 2025, following an analysis of its strategy and core business needs, and in an effort to streamline focus and support the continued development of the Company’s pipeline, the Company commenced a reduction in the Company’s workforce of approximately 50%, primarily consisting of field-based sales employees. This reduction in workforce is expected to be substantially completed by the end of the first half of 2025. The Company estimates that, in connection with this reduction in its workforce, it will incur aggregate charges of approximately $20.0 million to approximately $25.0 million, primarily comprised of one-time employee severance and benefit costs. Of these charges, substantially all are expected to result in cash expenditures. The Company may incur additional costs not currently contemplated due to events associated with or resulting from the workforce reduction. The estimated charges that the Company expects to incur are subject to a number of assumptions, and actual results may differ materially from these estimates.

v3.25.1
Segment Reporting
12 Months Ended
Dec. 31, 2024
Disclosure Text Block  
Segment Reporting

17. Segment Reporting

The Company operates in one reportable business segment—human therapeutics. The human therapeutics segment revenues are generated primarily through collaborative arrangements and license agreements related to research and development and commercialization of linaclotide. The accounting policies of the human therapeutics segment are the same as those described in the summary of significant accounting policies.

The Company has identified the Chief Executive Officer and the Chief Financial Officer as the chief operating decision-maker (“CODM”). The CODM uses consolidated net income (loss) to understand and evaluate the Company’s operating performance and trends, to prepare and approve the annual budget, and to develop short-term and long-term operating plans. Revenues, costs and expenses, and other income (expense) are provided to the CODM as presented in the statement of income (loss). Total assets are not reviewed by the CODM when evaluating the segment’s performance.

 

 

v3.25.1
Selected Quarterly Financial Data (Unaudited)
12 Months Ended
Dec. 31, 2024
Disclosure Text Block  
Selected Quarterly Financial Data (Unaudited)

18. Selected Quarterly Financial Data (Unaudited)

The following table contains quarterly financial information for the years ended December 31, 2024 and 2023. The Company believes that the following information reflects all normal recurring adjustments necessary for a fair presentation of the information for the periods presented. The operating results for any quarter are not necessarily indicative of results for any future period.

First

Second

Third

Fourth

Total

Quarter

Quarter

Quarter

Quarter

Year

(in thousands, except per share data)

2024

    

    

    

    

    

    

    

    

    

    

Total revenues

$

74,877

$

94,396

$

91,592

$

90,545

$

351,410

Total cost and expenses

 

63,857

 

69,419

65,956

59,054

 

258,286

Other income (expense), net

 

(6,062)

 

(6,101)

(8,267)

(7,496)

 

(27,926)

Net income (loss)

 

(4,162)

 

(860)

3,646

2,256

 

880

Comprehensive income (loss)

(2,053)

(408)

2,064

5,231

4,834

Net income (loss) per share—basic (1)

(0.03)

(0.01)

0.02

0.01

0.01

Net income (loss) per share—diluted (1)

(0.03)

(0.01)

0.02

0.01

0.01

(1)The summation of quarterly diluted net income per share does not equate to the calculation for the full fiscal year, as quarterly calculations are performed on a discrete basis.

First

Second

Third

Fourth

Total

Quarter

Quarter

Quarter

Quarter

Year

(in thousands, except per share data)

2023

    

    

    

    

    

    

    

    

    

    

Total revenues

$

104,061

$

107,382

$

113,739

$

117,553

$

442,735

Total cost and expenses

 

43,964

 

1,190,521

73,716

 

79,964

 

1,388,165

Other income (expense), net

 

5,764

 

6,917

(8,091)

 

(7,229)

 

(2,639)

Net income (loss)

45,714

 

(1,089,478)

13,950

(1,745)

(1,031,559)

Net income (loss) attributable to Ironwood
Pharmaceuticals, Inc.

45,714

(1,062,187)

15,321

(1,087)

(1,002,239)

Comprehensive income (loss) attributable to Ironwood Pharmaceuticals, Inc.

 

45,714

(1,062,187)

14,569

 

(3,303)

 

(1,005,207)

Net income per share—basic (1)

0.30

(6.84)

0.10

(0.01)

(6.45)

Net income per share—diluted (1)

0.25

(6.84)

0.09

(0.01)

(6.45)

(1)The summation of quarterly diluted net income per share does not equate to the calculation for the full fiscal year, as quarterly calculations are performed on a discrete basis.

 

 

 

v3.25.1
Pay vs Performance Disclosure - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Pay vs Performance Disclosure              
Net Income (Loss) $ (1,087) $ 15,321 $ (1,062,187) $ 45,714 $ 880 $ (1,002,239) $ 175,065
v3.25.1
Insider Trading Arrangements
3 Months Ended
Dec. 31, 2024
Trading Arrangements, by Individual  
Rule 10b5-1 Arrangement Adopted false
Non-Rule 10b5-1 Arrangement Adopted false
Rule 10b5-1 Arrangement Terminated false
Non-Rule 10b5-1 Arrangement Terminated false
v3.25.1
Insider Trading Policies and Procedures
12 Months Ended
Dec. 31, 2024
Insider Trading Policies and Procedures [Line Items]  
Insider Trading Policies and Procedures Adopted true
v3.25.1
Cybersecurity Risk Management and Strategy Disclosure
12 Months Ended
Dec. 31, 2024
Cybersecurity Risk Management, Strategy, and Governance [Line Items]  
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]

We have a multilayered framework for assessing, identifying, detecting and responding to reasonably foreseeable cybersecurity risks and threats. To protect our information technology, or IT, systems from cybersecurity threats, we use various security tools that help prevent, identify, escalate, investigate, resolve and recover from identified vulnerabilities and security incidents in a timely manner. In the event of a material change to our systems or operations, we would conduct an assessment of the internal and external threats to the security, confidentiality, integrity, and availability of our data and systems, along with other material risks to our operations. We leverage third-party security services for audit, benchmarking, and improvement and use various tools and methodologies to manage cybersecurity risks that are tested regularly, including a cybersecurity assessment guided by the National Institute of Standards and Technology (NIST) cybersecurity framework and ongoing security awareness training. We oversee third-party service providers by conducting vendor diligence upon onboarding and ongoing monitoring. Vendors are assessed for risk based on the nature of their digital footprint, company profile, domain name services health, internet protocol reputation, external access threats and social engineering landscapes, based on that assessment, we conduct diligence that may include completing security questionnaires, onsite evaluation, and scans or other technical evaluations. We also monitor and evaluate our cybersecurity posture and performance on an ongoing basis through regular vulnerability scans, simulated phishing tests, penetration tests, and threat intelligence feeds. The results of these assessments are reported to the Audit Committee of the Board of Directors.

We have developed an incident response plan designed to coordinate the activities that we and our third-party service providers take to prepare to respond and recover from cybersecurity incidents, which include processes to triage, assess severity, investigate, escalate, contain, and remediate an incident, as well as to comply with potentially applicable legal obligations and mitigate any reputational damage.

Cybersecurity Risk Management Processes Integrated [Flag] true
Cybersecurity Risk Management Processes Integrated [Text Block]

We have a multilayered framework for assessing, identifying, detecting and responding to reasonably foreseeable cybersecurity risks and threats. To protect our information technology, or IT, systems from cybersecurity threats, we use various security tools that help prevent, identify, escalate, investigate, resolve and recover from identified vulnerabilities and security incidents in a timely manner. In the event of a material change to our systems or operations, we would conduct an assessment of the internal and external threats to the security, confidentiality, integrity, and availability of our data and systems, along with other material risks to our operations. We leverage third-party security services for audit, benchmarking, and improvement and use various tools and methodologies to manage cybersecurity risks that are tested regularly, including a cybersecurity assessment guided by the National Institute of Standards and Technology (NIST) cybersecurity framework and ongoing security awareness training. We oversee third-party service providers by conducting vendor diligence upon onboarding and ongoing monitoring. Vendors are assessed for risk based on the nature of their digital footprint, company profile, domain name services health, internet protocol reputation, external access threats and social engineering landscapes, based on that assessment, we conduct diligence that may include completing security questionnaires, onsite evaluation, and scans or other technical evaluations. We also monitor and evaluate our cybersecurity posture and performance on an ongoing basis through regular vulnerability scans, simulated phishing tests, penetration tests, and threat intelligence feeds. The results of these assessments are reported to the Audit Committee of the Board of Directors.

We have developed an incident response plan designed to coordinate the activities that we and our third-party service providers take to prepare to respond and recover from cybersecurity incidents, which include processes to triage, assess severity, investigate, escalate, contain, and remediate an incident, as well as to comply with potentially applicable legal obligations and mitigate any reputational damage.

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]

The Company’s Senior Vice President, Controller and Principal Accounting Officer is responsible for managerial oversight of our cybersecurity program and reporting on cybersecurity matters to the Audit Committee of the Board of Directors and management. Our Senior Vice President, Controller and Principal Accounting Officer oversees the cybersecurity team, which include members of our internal IT department and is also supported by third-party service providers.

Our Board of Directors is responsible for overseeing our enterprise risk management activities in general, and each of our Board committees assists the Board in the role of risk oversight. The Audit Committee of the Board of Directors oversees our cybersecurity risk and receives regular reports, with a minimum frequency of once per year, from our Senior Vice President, Controller and Principal Accounting Officer on various cybersecurity matters, including risk assessments, mitigation strategies, areas of emerging risks, incidents and industry trends, and other areas of importance. Promptly after becoming aware of a material cybersecurity incident affecting our IT systems or data, the Audit Committee would work with management to formulate a mitigation plan and review compliance with such plan, as well as to ensure compliance with any external regulatory or disclosure requirements, including any disclosures of material cybersecurity breaches.

 

Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block] Audit Committee of the Board of Directors
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]

Our Board of Directors is responsible for overseeing our enterprise risk management activities in general, and each of our Board committees assists the Board in the role of risk oversight. The Audit Committee of the Board of Directors oversees our cybersecurity risk and receives regular reports, with a minimum frequency of once per year, from our Senior Vice President, Controller and Principal Accounting Officer on various cybersecurity matters, including risk assessments, mitigation strategies, areas of emerging risks, incidents and industry trends, and other areas of importance. Promptly after becoming aware of a material cybersecurity incident affecting our IT systems or data, the Audit Committee would work with management to formulate a mitigation plan and review compliance with such plan, as well as to ensure compliance with any external regulatory or disclosure requirements, including any disclosures of material cybersecurity breaches.

Cybersecurity Risk Role of Management [Text Block]

The Company’s Senior Vice President, Controller and Principal Accounting Officer is responsible for managerial oversight of our cybersecurity program and reporting on cybersecurity matters to the Audit Committee of the Board of Directors and management. Our Senior Vice President, Controller and Principal Accounting Officer oversees the cybersecurity team, which include members of our internal IT department and is also supported by third-party service providers.

Our Board of Directors is responsible for overseeing our enterprise risk management activities in general, and each of our Board committees assists the Board in the role of risk oversight. The Audit Committee of the Board of Directors oversees our cybersecurity risk and receives regular reports, with a minimum frequency of once per year, from our Senior Vice President, Controller and Principal Accounting Officer on various cybersecurity matters, including risk assessments, mitigation strategies, areas of emerging risks, incidents and industry trends, and other areas of importance. Promptly after becoming aware of a material cybersecurity incident affecting our IT systems or data, the Audit Committee would work with management to formulate a mitigation plan and review compliance with such plan, as well as to ensure compliance with any external regulatory or disclosure requirements, including any disclosures of material cybersecurity breaches.

 

Cybersecurity Risk Management Positions or Committees Responsible [Flag] true
Cybersecurity Risk Management Positions or Committees Responsible [Text Block] Senior Vice President, Controller
Cybersecurity Risk Management Expertise of Management Responsible [Text Block]

The Company’s Senior Vice President, Controller and Principal Accounting Officer is responsible for managerial oversight of our cybersecurity program and reporting on cybersecurity matters to the Audit Committee of the Board of Directors and management. Our Senior Vice President, Controller and Principal Accounting Officer oversees the cybersecurity team, which include members of our internal IT department and is also supported by third-party service providers.

Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]

Our Board of Directors is responsible for overseeing our enterprise risk management activities in general, and each of our Board committees assists the Board in the role of risk oversight. The Audit Committee of the Board of Directors oversees our cybersecurity risk and receives regular reports, with a minimum frequency of once per year, from our Senior Vice President, Controller and Principal Accounting Officer on various cybersecurity matters, including risk assessments, mitigation strategies, areas of emerging risks, incidents and industry trends, and other areas of importance. Promptly after becoming aware of a material cybersecurity incident affecting our IT systems or data, the Audit Committee would work with management to formulate a mitigation plan and review compliance with such plan, as well as to ensure compliance with any external regulatory or disclosure requirements, including any disclosures of material cybersecurity breaches.

Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag] true
v3.25.1
Summary of Significant Accounting Policies (Policies)
12 Months Ended
Dec. 31, 2024
Policy Text Blocks  
Principles of Consolidation

Principles of Consolidation

The accompanying consolidated financial statements as of December 31, 2024 include the accounts of Ironwood, its wholly-owned subsidiaries, Ironwood Pharmaceuticals Securities Corporation, Ironwood Pharmaceuticals GmbH, VectivBio AG, and GlyPharma Therapeutic Inc. (“GlyPharma”). All intercompany transactions and balances are eliminated in consolidation.

For consolidated entities in which the Company owns less than 100% of the outstanding shares, the Company records net income (loss) and comprehensive income (loss) attributable to noncontrolling interests in its consolidated statements of income (loss) and comprehensive income (loss), respectively, equal to the percentage of the common stock ownership interest retained in such entities by the noncontrolling parties. The Company reports noncontrolling interests in consolidated entities as a component of equity separate from the Company’s equity.

Segment Information

Segment Information

Operating segments are components of an enterprise for which separate financial information is available and is evaluated regularly by the Company’s chief operating decision-maker in deciding how to allocate resources and in assessing performance. The Company currently operates in one reportable business segment – human therapeutics. The Company’s reportable business segment is more fully described in Note 17, Segment Reporting, to these consolidated financial statements.

Use of Estimates

Use of Estimates

The preparation of consolidated financial statements in accordance with U.S. generally accepted accounting principles requires the Company’s management to make estimates and judgments that may affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and the amounts of revenues and expenses during the reported periods. On an ongoing basis, the Company’s management evaluates its estimates, judgments and methodologies. Estimates and assumptions in the consolidated financial statements include those related to fair value of assets acquired and liabilities assumed in acquisitions; revenue recognition; accounts receivable; useful lives of long-lived assets; impairment of long-lived assets, including goodwill; valuation procedures for right-of-use assets and operating lease liabilities; income taxes, including uncertain tax positions and the valuation allowance for deferred tax assets; research and development expenses; contingencies; defined benefit pension liabilities and certain investment fund assets; and share-based compensation. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities. Actual results may differ materially from these estimates under different assumptions or conditions. Changes in estimates are reflected in reported results in the period in which they become known.

Reclassifications

Reclassifications

Certain prior period financial statement items have been reclassified to conform to current period presentation.

Cash and Cash Equivalents

Cash and Cash Equivalents

The Company considers all highly liquid investment instruments with a remaining maturity when purchased of three months or less to be cash equivalents. Investments qualifying as cash equivalents primarily consist of money market funds, U.S. Treasury securities, and commercial paper. The carrying amount of cash equivalents approximates fair value. The amount of cash equivalents included in cash and cash equivalents was $55.0 million and $58.7 million at December 31, 2024 and 2023, respectively.

Restricted Cash

Restricted Cash

The Company is contingently liable under unused letters of credit with a bank, related to the Company’s facility lease and vehicle lease agreements. Collateral used to secure letters of credit is classified as restricted cash. There was no restricted cash as of December 31, 2024 or 2023.

Concentrations of Suppliers

Concentrations of Suppliers

The Company relies on its collaboration partners and their suppliers to manufacture linaclotide API, linaclotide finished drug product, and finished goods.

If any of the Company’s collaboration partners and their suppliers were to limit or terminate production or otherwise fail to meet the quality or delivery requirements needed to satisfy the supply commitments, the process of locating and qualifying alternate sources could require up to several months, during which time production could be delayed. Such delays could have a material adverse effect on the Company’s business, financial position and results of operations.

Accounts Receivable

Accounts Receivable

The Company makes judgments as to its ability to collect outstanding receivables and provides an allowance for credit losses when collection becomes doubtful. Provisions are made based upon a specific review of all significant outstanding invoices and the overall quality and age of those invoices not specifically reviewed. The Company’s receivables relate primarily to amounts reimbursed under its collaboration, license, and other agreements. The Company believes that credit risks associated with these partners are not significant. The Company reviews the need for an allowance for credit losses for its receivables based on various factors including payment history and historical bad debt experience. The Company had no allowance for credit losses as of December 31, 2024 or 2023.

Concentrations of Credit Risk

Concentrations of Credit Risk

Financial instruments that subject the Company to credit risk primarily consist of cash and cash equivalents, restricted cash, and accounts receivable. The Company maintains its cash and cash equivalent balances with high-quality financial institutions and the Company believes that such funds are subject to minimal credit risk. The Company has adopted an investment policy which limits the amounts the Company may invest in certain types of investments, and requires all investments held by the Company to be at least A- rated, thereby reducing credit risk exposure.

Accounts receivable primarily consists of amounts due under the linaclotide collaboration agreement with AbbVie for North America (Note 5). The Company does not obtain collateral for its accounts receivable.

The percentages of revenue recognized from significant collaborative partners of the Company in the years ended December 31, 2024, 2023, and 2022 and the account receivable balances, net of any payables due, at December 31, 2024 and 2023 are included in the following table:

Accounts
Receivable

Revenue

 

December 31, 

Year Ended December 31, 

 

    

2024

    

2023

    

2024

    

2023

    

2022

 

Collaborative Partner:

AbbVie (North America and Europe)

 

99

%  

87

%  

99

%  

98

%  

98

%  

 

 

Property and Equipment

Property and Equipment

Property and equipment, including leasehold improvements, are recorded at cost, and are depreciated when placed into service using the straight-line method based on their estimated useful lives as follows:

    

Estimated Useful Life

Asset Description

    

(In Years)

Laboratory equipment

 

5

Computer and office equipment

 

3

Furniture and fixtures

 

7

Software

 

3

 

Included in property and equipment are certain costs of software obtained for internal use. Costs incurred during the preliminary project stage are expensed as incurred, while costs incurred during the application development

stage are capitalized and amortized over the estimated useful life of the software. The Company also capitalizes costs related to specific upgrades and enhancements when it is probable the expenditures will result in additional functionality. Maintenance and training costs related to software obtained for internal use are expensed as incurred.

Leasehold improvements are amortized over the shorter of the estimated useful life of the asset or the lease term.

Costs for capital assets not yet placed into service have been capitalized as construction in process, and will be depreciated in accordance with the above guidelines once placed into service. Maintenance and repair costs are expensed as incurred.

Intangible Assets

Intangible Assets

Intangible assets are comprised of the assembled workforce acquired in the VectivBio Acquisition and are amortized on a straight-line basis over an estimated useful life of five years.

Impairment of Long-Lived Assets

Impairment of Long-Lived Assets

The Company regularly reviews the carrying amount of its long-lived assets to determine whether indicators of impairment may exist, which warrant adjustments to carrying values or estimated useful lives. If indications of impairment exist, projected future undiscounted cash flows associated with the asset are compared to the carrying amount to determine whether the asset’s value is recoverable. If the carrying value of the asset exceeds such projected undiscounted cash flows, the asset will be written down to its estimated fair value.

Income Taxes

Income Taxes

The Company provides for income taxes under the asset and liability method. Deferred tax assets and liabilities are determined based on differences between financial reporting and tax bases of assets and liabilities and are measured using the enacted tax rates in effect when the differences are expected to reverse. Deferred tax assets are reduced by a valuation allowance to reflect the uncertainty associated with their ultimate realization.

The Company accounts for uncertain tax positions recognized in the consolidated financial statements in accordance with the provisions of Accounting Standards Codification (“ASC”) Topic 740, Income Taxes, by prescribing a more-likely-than-not threshold for financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. When uncertain tax positions exist, the Company recognizes the tax benefit of tax positions to the extent that the benefit will more likely than not be realized. The determination as to whether the tax benefit will more likely than not be realized is based upon the technical merits of the tax position as well as consideration of the available facts and circumstances. The Company evaluates uncertain tax positions on a quarterly basis and adjusts the level of the liability to reflect any subsequent changes in the relevant facts surrounding the uncertain positions. Any changes to these estimates, based on the actual results obtained and/or a change in assumptions, could impact the Company’s income tax provision in future periods. Interest and penalty charges, if any, related to unrecognized tax benefits are classified as income tax expense in the Company’s consolidated statements of income (loss).

Financing Costs

Financing Costs

Financing costs include costs directly attributable to the Company’s offerings of its equity securities and its debt financings. Costs attributable to equity offerings are charged as a reduction to stockholders’ equity against the proceeds of the offering once the offering is completed. Costs attributable to debt financings are deferred and amortized to interest expense over the term of the debt using the effective interest method. In accordance with ASC Topic 835, Interest, the Company presents on its balance sheet unamortized debt issuance costs related to convertible notes as a direct deduction from the associated debt liability and unamortized debt issuance costs related to revolving credit arrangements as other assets.

Leases

Leases

The Company’s lease portfolio for the year ended December 31, 2024 included: an office lease for its headquarters location and other locations, vehicle leases for its salesforce representatives, and leases for computer and

office equipment. The Company determines if an arrangement is a lease at the inception of the contract and determines the classification of its leases at lease commencement. The asset component of the Company’s operating leases is recorded as operating lease right-of-use assets, and the liability component is recorded as current portion of operating lease liabilities and operating lease liabilities, net of current portion in the Company’s consolidated balance sheets. As of December 31, 2024, the Company did not record any finance leases.

Right-of-use assets and operating lease liabilities are recognized based on the present value of lease payments over the lease term at the lease commencement date. The lease term used to measure the right-of-use asset and operating lease liability may include options to extend the lease when it is reasonably certain that the Company will exercise the option. The Company accounts for lease components and non-lease components together as a single lease component for the asset class of right-of-use real estate assets. The Company uses an incremental borrowing rate based on the information available at lease commencement in determining the present value of lease payments, if an implicit rate of return is not readily determinable. Operating lease right-of-use assets are adjusted for prepaid rent, initial direct costs, and lease incentives.

Right-of-use assets and operating lease liabilities are remeasured upon reassessment events and modifications to leases using the present value of remaining lease payments and estimated incremental borrowing rate at the time of remeasurement, as applicable.

Operating lease cost is recognized on a straight-line basis over the lease term, and includes amounts related to short-term leases. The Company has elected to not recognize lease terms with a term of twelve months or less on its balance sheet for all classes of underlying asset types. The Company recognizes variable lease payments as operating expenses in the period in which the obligation for those payments is incurred. Variable lease payments primarily include common area maintenance, utilities, real estate taxes, insurance, and other operating costs that are passed on from the lessor in proportion to the space leased by the Company.

Derivative Assets and Liabilities

Derivative Assets and Liabilities

In June 2015, the Company issued 2.25% Convertible Senior Notes due June 15, 2022 (the “2022 Convertible Notes”), and in August 2019, the Company issued 0.75% Convertible Senior Notes due 2024 (the “2024 Convertible Notes”) and 1.50% Convertible Senior Notes due 2026 (the “2026 Convertible Notes”, and together with the 2022 Convertible Notes and the 2024 Convertible Notes, the “Convertible Senior Notes”). In connection with the issuance of the 2022 Convertible Notes, the Company entered into convertible note hedge transactions (the “Convertible Note Hedges”) and separate note hedge warrant transactions (the “Note Hedge Warrants”), with certain financial institutions (Note 10). In connection with the partial repurchase of the 2022 Convertible Notes in August 2019, the Company terminated its Convertible Note Hedges and Note Hedge Warrants proportionately. The Convertible Note Hedges terminated unexercised upon expiry in June 2022 and the Note Hedge Warrants terminated unexercised upon expiry in April 2023. These instruments are derivative financial instruments under ASC Topic 815, Derivatives and Hedging (“ASC 815”).

These derivatives are recorded as assets or liabilities at fair value each reporting date and the fair value is determined using the Black-Scholes option-pricing model. The changes in fair value are recorded as a component of other (expense) income in the consolidated statements of income. Significant inputs used to determine the fair value include the price per share of the Company’s Class A Common Stock, expected terms of the derivative instruments, strike prices of the derivative instruments, risk-free interest rates, and expected volatility of the Company’s Class A Common Stock. Changes to these inputs could materially affect the valuation of the derivative instruments. Cash flows related to the purchase and settlement of derivatives are classified as financing activities and gains and losses upon revaluation and settlement are classified as operating activities on the consolidated statement of cash flows.

In August 2019, in connection with the issuance of the 2024 Convertible Notes and the 2026 Convertible Notes, the Company entered into the Capped Calls. The Capped Calls cover the same number of shares of Class A Common Stock that initially underlie the 2024 Convertible Notes and the 2026 Convertible Notes (subject to anti-dilution and certain other adjustments). These instruments meet the conditions outlined in ASC 815 to be classified in stockholders’ equity (deficit) and are not subsequently remeasured as long as the conditions for equity classification continue to be met. The Capped Calls related to the 2024 Convertible Notes expired unexercised upon maturity of the 2024 Convertible Notes in June 2024.

Share Repurchases

Share Repurchases

The Company accounts for repurchases of its Class A Common Stock on the trade date by recording the excess of the repurchase price over the par value entirely to additional paid-in capital. All repurchased shares are retired or constructively retired. Issued and outstanding shares are reduced by shares repurchased.

Revenue Recognition

Revenue Recognition

The Company’s revenues are generated primarily through collaborative arrangements and license agreements related to the research and development and commercialization of linaclotide. The terms of the collaborative research and development, license, co-promotion and other agreements contain multiple performance obligations which may include (i) licenses, (ii) research and development activities, including participation on joint steering committees, (iii) the manufacture of finished drug product, API, or development materials for a partner, which are reimbursed at a contractually determined rate, and (iv) education or co-promotion activities by the Company’s clinical sales specialists. Non-refundable payments to the Company under these agreements may include (i) up-front license fees, (ii) payments for research and development activities, (iii) payments for the manufacture of finished drug product, API, or development materials, (iv) payments based upon the achievement of certain milestones, (v) payments for sales detailing, promotional support services and medical education initiatives, and (vi) royalties on product sales. The Company receives its share of the net profits or bears its share of the net losses from the sale of linaclotide in the U.S. through its collaboration agreement with AbbVie for North America. The Company has adopted a policy to recognize revenue net of tax withholdings, as applicable.

Collaboration, License, and Other Commercial Agreements

Upon licensing intellectual property to a customer, the Company determines if the license is distinct from the other performance obligations identified in the arrangement. The Company recognizes revenues from the transaction price, including non-refundable, up-front fees allocated to the license when the license is transferred to the customer if the license has distinct benefit to the customer. For licenses that are combined with other promises, the Company assesses the nature of the combined performance obligation to determine whether the combined performance obligation is satisfied over time or at a point in time. For performance obligations that are satisfied over time, the Company evaluates the measure of progress each reporting period and, if necessary, adjusts the measure of performance and related revenue recognition.

The Company’s license and collaboration agreements include milestone payments, such as development and other milestones. The Company evaluates whether the milestones are considered probable of being reached and estimates the amount to be included in the transaction price using the most likely amount method at the inception of the agreement. If it is probable that a significant revenue reversal would not occur, the associated milestone value is included in the transaction price. Milestone payments that are not within the control of the Company, such as regulatory approvals, are not considered probable of being achieved until those approvals are received. The transaction price is then allocated to each performance obligation on a relative standalone selling price basis, for which the Company recognizes revenue as or when the performance obligations under the contract are satisfied. The Company re-evaluates the probability of achievement of such milestones and any related constraint at each reporting period, and any adjustments are recorded on a cumulative catch-up basis.

Agreements that include the supply of API or drug product for either clinical development or commercial supply at the customer’s discretion are generally considered as options. The Company assesses if these options provide a material right to its partner, and if so, they are accounted for as separate performance obligations. If the Company is entitled to additional payments when the customer exercises these options, any additional payments are recorded as revenue when the customer obtains control of the goods, which is typically upon shipment for sales of API and finished drug product.

For agreements that include sales-based royalties, including milestone payments based on the level of sales, and the license is deemed to be the predominant item to which the royalties relate, the Company recognizes revenue when the related sales occur in accordance with the sales-based royalty exception.

Net Profit or Net Loss Sharing

In accordance with ASC Topic 808, Collaborative Arrangements (“ASC 808”), the Company considers the nature and contractual terms of the arrangement and the nature of the Company’s business operations to determine the classification of payments under the Company’s collaboration agreements. While ASC 808 provides guidance on classification, the standard is silent on matters of separation, initial measurement, and recognition. Therefore, the Company applies the separation, initial measurement, and recognition principles of ASC Topic 606, Revenue from Contracts with Customers (“ASC 606”), as applicable.

The Company’s collaborative arrangements revenues generated from sales of LINZESS in the U.S. are considered akin to sales-based royalties. In accordance with the sales-based royalty exception, the Company recognizes its share of the pre-tax commercial net profit or net loss generated from the sales of LINZESS in the U.S. in the period the product sales are earned, as reported by AbbVie, and related cost of goods sold and selling, general and administrative expenses as incurred by the Company and AbbVie. These amounts are partially determined based on amounts provided by AbbVie and involve the use of estimates and judgments, such as product sales allowances and accruals related to prompt payment discounts, chargebacks, governmental and contractual rebates, wholesaler fees, product returns, and co-payment assistance costs, which could be adjusted based on actual results in the future. The Company is highly dependent on AbbVie for timely and accurate information regarding net revenues from sales of LINZESS in the U.S. in accordance with both ASC 808 and ASC 606, and the related costs, in order to accurately report its results of operations. If the Company does not receive timely and accurate information or incorrectly estimates activity levels associated with the collaboration at a given point in time, the Company could be required to record adjustments in future periods.

In accordance with ASC 606-10-55, Principal Agent Considerations, the Company records revenue transactions as net product revenue in its consolidated statements of income if it is deemed the principal in the transaction, which includes being the primary obligor, retaining inventory risk, and control over pricing. Given that the Company is not the primary obligor and does not have the inventory risks in the collaboration agreement with AbbVie for North America, it records its share of the net profits or net losses from the sales of LINZESS in the U.S. on a net basis and presents the settlement payments to and from AbbVie as collaboration expense or collaborative arrangements revenue, as applicable. The Company and AbbVie settle the cost sharing quarterly such that the Company’s statements of income reflect 50% of the pre-tax net profit or loss generated from sales of LINZESS in the U.S.

Other

The Company’s deferred revenue balance consists of advance billings and payments received from collaboration partners in excess of revenue recognized.

Research and Development Costs

Research and Development Costs

The Company generally expenses research and development costs to operations as incurred. The Company capitalizes nonrefundable advance payments made by the Company for research and development activities and defers expense recognition until the related goods are received or the related services are performed.

Research and development expenses are comprised of costs incurred in performing research and development activities, including salary, benefits, share-based compensation, and other employee-related expenses; laboratory supplies and other direct expenses; facilities expenses; overhead expenses; third-party contractual costs relating to nonclinical studies and clinical trial activities and related contract manufacturing expenses, development of manufacturing processes and regulatory registration of third-party manufacturing facilities; licensing fees for the Company’s product candidates; and other outside expenses.

The Company has certain collaboration agreements pursuant to which it shares or has shared research and development expenses related to linaclotide. The Company records expenses incurred under such linaclotide collaboration arrangements as research and development expense. Under the Company’s collaboration agreement with AbbVie for North America, the Company is reimbursed for certain research and development expenses and nets these reimbursements against its research and development expenses as incurred.

Research and development expense includes up-front payment, non-contingent payment, and milestone payment obligations under certain collaboration arrangements. Expense is recognized when the obligation is determined to be probable.

Restructuring Expenses

Restructuring Expenses

Restructuring expenses are comprised primarily of costs associated with exit and disposal activities in accordance with ASC Topic 420, Exit or Disposal Cost Obligations, and ASC Topic 712, Compensation – Nonretirement Postemployment Benefits, and include one-time termination benefits and contract-related costs. Such costs are based on estimates of fair value in the period liabilities are incurred. The Company evaluates and adjusts these costs for changes in circumstances as additional information becomes available.

Selling, General and Administrative Expenses

Selling, General and Administrative Expenses

The Company expenses selling, general and administrative costs to operations as incurred. Selling, general and administrative expenses consist primarily of compensation, benefits and other employee-related expenses for personnel in the Company’s administrative, finance, legal, information technology, business development, commercial, sales, marketing, communications and human resource functions. Other costs include legal costs of pursuing patent protection of the Company’s intellectual property, general and administrative related facility costs, insurance costs and professional fees for accounting, tax, consulting, legal and other services.

The Company includes AbbVie’s selling, general and administrative cost-sharing payments in the calculation of the net profits and net losses from the sale of LINZESS in the U.S. and presents the net payment to or from AbbVie as collaboration expense or collaborative arrangements revenue, respectively.

Defined Benefit Pension Obligations

Defined Benefit Pension Obligations

Pension benefits earned during the year, as well as interest on projected benefit obligations, are accrued. Service costs are recognized within research and development expenses or selling, general and administrative expenses, depending on the function of the plan participant. Prior service costs and credits resulting from changes in plan benefits are generally amortized over the average remaining service period of the employees expected to receive benefits. Actuarial gains and losses are recognized in other income (expense), net, in the year in which they occur. The Company recognizes a pension plan’s funded status as either an asset or liability in its consolidated balance sheets.

Share-Based Compensation Expense

Share-Based Compensation Expense

The Company grants awards under its share-based compensation programs, including stock awards, restricted stock awards (“RSAs”), restricted stock units (“RSUs”) (including both time-based and performance-based RSUs), stock options, and shares issued under the Company’s employee stock purchase plan (“ESPP”). Share-based compensation is recognized as expense in the consolidated statements of income based on the grant date fair value over the requisite service period, net of estimated forfeitures. The Company estimates forfeitures over the requisite service period using historical forfeiture activity and records share-based compensation expense only for those awards that are expected to vest.

The Company estimates the fair value of stock options using the Black-Scholes option-pricing model, which requires the use of subjective assumptions including volatility and expected term, among others. The fair value of stock awards, RSAs, and RSUs is based on the market value of the Company’s Class A Common Stock on the date of grant, with the exception of performance-based RSUs with market conditions, which are measured using the Monte Carlo simulation method on the date of grant (Note 13). Discounted stock purchases under the Company’s ESPP are valued on the first date of the offering period using the Black-Scholes option-pricing model to compute the fair value of the lookback provision plus the purchase discount.

For awards that vest based on service conditions and market conditions, the Company uses a straight-line method to recognize compensation expense over the respective service period. For awards that contain performance conditions, the Company determines the appropriate amount to expense at each reporting date based on the anticipated achievement of performance targets, which requires judgement, including forecasting the achievement of future specified targets. At the date performance conditions are determined to be probable of achievement, the Company

records a cumulative expense catch-up, with remaining expense amortized over the remaining service period. Throughout the performance period, the Company re-assesses the estimated performance and updates the number of performance-based awards that it believes will ultimately vest. Discounted stock purchases under the Company’s ESPP are recognized over the offering period.

Compensation expense related to modified awards is measured based on the fair value for the awards as of the modification date. Any incremental compensation expense arising from the excess of the fair value of the awards on the modification date compared to the fair value of the awards immediately before the modification date is recognized at the modification date or ratably over the requisite remaining service period, as appropriate.

While the assumptions used to calculate and account for share-based compensation awards represent management’s best estimates, these estimates involve inherent uncertainties and the application of management’s judgment. As a result, if revisions are made to the Company’s underlying assumptions and estimates, the Company’s share-based compensation expense could vary significantly from period to period.

Patent Costs

Patent Costs

The Company incurred and recorded as operating expense legal and other fees related to patents of $2.2 million, $1.8 million, and $1.3 million for the years ended December 31, 2024, 2023 and 2022, respectively. These costs were charged to selling, general and administrative expenses as incurred.

Net Income (Loss) Per Share

Net Income (Loss) Per Share

Basic net income (loss) per common share is computed by dividing the net income by the weighted average number of common shares outstanding during the period. Diluted net income (loss) per share reflects the potential dilution beyond common shares for basic net income (loss) per share that could occur if securities or other contracts to issue common shares were exercised, converted into common shares, or resulted in the issuance of common shares that would have shared in the Company’s earnings.

Foreign Currency Translation

Foreign Currency Translation

For subsidiaries with a different functional currency than the U.S. dollar, assets and liabilities are translated at the exchange rate as of the balance sheet date and income and expense items are translated at the average exchange rate for the reporting period. Adjustments resulting from the translation of the financial statements of foreign subsidiaries are recorded in accumulated comprehensive income (loss), a separate component of stockholders’ equity.

Acquisitions

Acquisitions

The Company evaluates acquisitions of assets and other similar transactions to assess whether the transaction should be accounted for as a business combination or asset acquisition by first applying a screen test to determine whether substantially all of the fair value of the gross assets acquired is concentrated into a single identifiable asset or group of similar identifiable assets. If the screen test is met, a single asset or group of assets is not a business and is accounted for as an asset acquisition. If the screen test is not met, further determination is required as to whether the Company has acquired inputs and processes that have the ability to create outputs that would meet the requirements of a business.

The Company accounts for business combinations using the acquisition method of accounting, which requires the acquiring entity to recognize the fair value of assets acquired and liabilities assumed and establishes the acquisition date as the fair value measurement point. The Company determines the fair value of assets acquired and liabilities assumed based on management’s estimate of the fair value of assets acquired and liabilities assumed in the acquisition. Goodwill represents the excess of the purchase price over the fair value of the net tangible and intangible assets acquired. Transaction costs are expensed as incurred.

The Company accounts for asset acquisitions that are not determined to be a business combination by recognizing net assets based on the consideration paid, inclusive of transaction costs, on a relative fair value basis. In an asset acquisition, the cost allocated to acquired in-process research and development (“IPR&D”) with no alternative future use is charged to research and development expense at the acquisition date. The Company classifies asset acquisitions of acquired IPR&D as investing activities on its consolidated statements of cash flows.

Comprehensive Income (Loss)

Comprehensive Income (Loss)

Comprehensive income (loss) is comprised of net income (loss) and other comprehensive income (loss). Other comprehensive income (loss) includes foreign currency translation adjustments and certain changes in the fair value of pension plan assets and projected benefit obligation attributed to the Company’s defined benefit pension plans. Accumulated other comprehensive income (loss) is presented as a separate component of stockholders’ equity (deficit).

Subsequent Events

Subsequent Events

The Company considers events or transactions that have occurred after the balance sheet date of December 31, 2024, but prior to the filing of the financial statements with the Securities and Exchange Commission (“SEC”) to provide additional evidence relative to certain estimates or to identify matters that require additional recognition or disclosure. Subsequent events have been evaluated through the filing of the financial statements accompanying this Annual Report on Form 10-K. Refer to Note 16 for subsequent events relating to workforce reductions and restructuring.

New Accounting Pronouncements

New Accounting Pronouncements

From time to time, new accounting pronouncements are issued by the Financial Accounting Standards Board (the “FASB”) or other standard setting bodies that are adopted by the Company as of the specified effective date. The Company did not adopt any new accounting pronouncements during the year ended December 31, 2024 that had a material effect on its consolidated financial statements.

In November 2023, the FASB issued Accounting Standards Update (“ASU”) No. 2023-07, Segment Reporting (Topic 280) (“ASU 2023-07”). The guidance in ASU 2023-07 expands prior reportable segment disclosure requirements by requiring entities to disclose significant segment expenses that are regularly provided to the Chief Operating Decision Maker (“CODM”) and details of how the CODM uses financial reporting to assess their segment’s performance. The standard is effective for fiscal years beginning after December 15, 2023 and interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. The ASU is required to be applied retrospectively upon adoption. The expanded disclosure requirements are included in the consolidated financial statements (Note 17).

In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures (“ASU 2023-09”). The guidance in ASU 2023-09 improves the transparency of annual income tax disclosures by requiring greater disaggregation of information in the rate reconciliation and income taxes paid disaggregated by jurisdiction. The standard is effective for fiscal years beginning after December 15, 2024, with early adoption permitted. Upon adoption, ASU 2023-09 may be applied prospectively or retrospectively. The Company is currently evaluating the impact that the adoption of ASU 2023-09 may have on its disclosures in its annual consolidated financial statements.

In November 2024, the FASB issued ASU No. 2024-03, Disaggregation of Income Statement Expenses (“ASU 2024-03”). The guidance in ASU 2024-03 requires new financial statement disclosures in tabular format, disaggregating information about prescribed categories underlying any relevant income statement expense captions. The standard is effective for fiscal years beginning after December 15, 2026 and interim periods within fiscal years beginning after December 15, 2027, with early adoption permitted. Upon adoption, ASU 2024-03 may be applied prospectively or retrospectively. The Company is currently evaluating the impact that the adoption of ASU 2024-03 may have on its disclosures in its consolidated financial statements.

In November 2024, the FASB issued ASU No. 2024-04, Debt—Debt with Conversion and Other Options (Subtopic 470-20) (“ASU 2024-04”). The guidance in ASU 2024-04 clarifies the requirements related to accounting for the settlement of a debt instrument as an induced conversion. The standard is effective for fiscal years beginning after December 15, 2025, and interim periods within fiscal years beginning after December 15, 2025, with early adoption permitted as of the beginning of a reporting period if the entity has also adopted ASU 2020-06 for that period. The Company is currently evaluating the impact that the adoption of ASU 2024-04 may have on its disclosures in its consolidated financial statements.

Other recent accounting pronouncements issued, but not yet effective, are not expected to be applicable to the Company or have a material effect on the consolidated financial statements upon future adoption.

During the year ended December 31, 2022, the Company adopted the following accounting pronouncement that had a material effect on its consolidated financial statements:

In August 2020, the FASB issued ASU No. 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging— Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity (“ASU 2020-06”). The amendments in ASU 2020-06 simplify the accounting for certain financial instruments with characteristics of liabilities and equity, including convertible instruments and contracts on an entity’s own equity. Under ASU 2020-06, embedded conversion features are no longer separately reported in equity and convertible debt instruments are now accounted for as a single liability measured at amortized cost, as long as no other features require bifurcation and recognition as derivatives. These changes reduce reported interest expense and increase reported net income for entities with convertible instruments that were bifurcated between liabilities and equity under previously existing guidance. Additionally, temporary differences between the book and tax bases resulting from the bifurcation of the embedded conversion feature under previously existing guidance have been eliminated and deferred tax assets and liabilities arising from such temporary differences are no longer reported. The new guidance also requires the if-converted method to be used in diluted earnings per share computations for all convertible instruments and revised the if-converted method to preclude the addback of interest expense to the numerator if the principal portions of the convertible instruments are required to be settled in cash. The standard became effective for public companies for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2021. Upon adoption, entities could elect to apply the new standard on a modified retrospective or full retrospective basis.

The Company adopted ASU 2020-06 on January 1, 2022 using the modified retrospective approach, which resulted in a cumulative-effect adjustment recorded on the date of adoption as follows (in thousands):

December 31, 2021

Effect of the Adoption

January 1, 2022

Consolidated Balance Sheet

    

As Reported

    

of ASU 2020-06

    

As Adjusted

Deferred tax assets

$

333,294

$

16,855

$

350,149

Current portion of convertible senior notes

116,858

3,581

120,439

Long-term portion of convertible senior notes

337,333

57,324

394,657

Additional paid-in-capital

1,543,357

(110,217)

1,433,140

Retained earnings

(937,608)

66,167

(871,441)

 

 

Interest expense recognized in subsequent periods is reduced as a result of accounting for convertible debt instruments as a single liability measured at amortized cost, with a decrease of $22.1 million of non-cash interest expense during the year ended December 31, 2022 compared to the year ended December 31, 2021 related to convertible debt instruments outstanding on the adoption date.

The adoption of ASU 2020-06 did not impact the Company’s liquidity or cash flows.

v3.25.1
Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2024
Table Text Blocks  
Schedule of percentages of revenue and accounts receivable recognized from significant customers

Accounts
Receivable

Revenue

 

December 31, 

Year Ended December 31, 

 

    

2024

    

2023

    

2024

    

2023

    

2022

 

Collaborative Partner:

AbbVie (North America and Europe)

 

99

%  

87

%  

99

%  

98

%  

98

%  

 

Schedule of property and equipment

    

Estimated Useful Life

Asset Description

    

(In Years)

Laboratory equipment

 

5

Computer and office equipment

 

3

Furniture and fixtures

 

7

Software

 

3

 

December 31, 

 

2024

    

2023

Software

$

1,567

$

1,652

Leasehold improvements

 

7,407

 

7,407

Laboratory equipment

 

 

1,327

Furniture and fixtures

 

1,732

 

1,747

Computer and office equipment

 

2,154

 

2,341

 

12,860

 

14,474

Less accumulated depreciation and amortization

 

(8,365)

 

(8,889)

$

4,495

$

5,585

 

Schedule of ASU 2020-06 cumulative-effect adjustment

December 31, 2021

Effect of the Adoption

January 1, 2022

Consolidated Balance Sheet

    

As Reported

    

of ASU 2020-06

    

As Adjusted

Deferred tax assets

$

333,294

$

16,855

$

350,149

Current portion of convertible senior notes

116,858

3,581

120,439

Long-term portion of convertible senior notes

337,333

57,324

394,657

Additional paid-in-capital

1,543,357

(110,217)

1,433,140

Retained earnings

(937,608)

66,167

(871,441)

 

v3.25.1
Acquisitions (Tables)
12 Months Ended
Dec. 31, 2024
Table Text Blocks  
Schedule of asset acquisition

Cash consideration paid to selling shareholders (1)

$

1,041,391

Cash consideration paid to settle VectivBio restricted stock units (“RSUs”) and stock options (2)

 

78,003

Cash consideration paid to settle VectivBio warrants (3)

3,720

Transaction costs

26,270

Fair value of noncontrolling interest (4)

26,218

Total purchase consideration

$

1,175,602

(1)The cash consideration paid to selling shareholders was determined based on the total number of the outstanding ordinary shares of VectivBio (the “VectivBio Shares”) tendered at closing of 61,258,315 at a per share price of $17.00.
(2)The cash consideration paid to settle VectivBio RSUs and stock options issued under VectivBio’s equity incentive plans was determined based on the total number of underlying VectivBio Shares of 8,904,171 at a per share price of $17.00, less the exercise price for stock options.
(3)The cash consideration paid to settle VectivBio warrants was determined based on the total number of VectivBio warrant shares outstanding at close of 324,190 at a per share price of $11.4757 calculated as the per share price of $17.00, less the exercise price of $5.5243 per share.
(4)The fair value of the noncontrolling interest was determined based on the total number of VectivBio Shares outstanding at closing of 1,547,723 at the closing date of the tender offer, using the VectivBio closing share price on June 28, 2023 of $16.94.

 

Assets acquired

Cash and cash equivalents

$

123,340

Prepaid expenses and other current assets

10,867

Property and equipment

126

Intangible assets

4,100

Acquired in-process research and development

1,095,449

Total assets acquired

$

1,233,882

Liabilities assumed

Current liabilities

42,377

Other liabilities

15,903

Total liabilities assumed

$

58,280

Net assets acquired

$

1,175,602

 

v3.25.1
Net Income (Loss) Per Share (Tables)
12 Months Ended
Dec. 31, 2024
Table Text Blocks  
Schedule of computation of basic and diluted net loss per common share

Year Ended December 31, 

2024

2023 (1)

    

2022

Numerator:

Net income (loss)

$

880

$

(1,031,559)

$

175,065

Less: Net loss attributable to noncontrolling interests

(29,320)

Net income (loss) attributable to Ironwood Pharmaceuticals, Inc.

880

(1,002,239)

175,065

Add back interest expense, net of tax benefit, on assumed conversion of 2024 Convertible Notes

1,781

Add back interest expense, net of tax benefit, on assumed conversion of 2026 Convertible Notes

2,668

Numerator used in computing net income (loss) per share — diluted

$

880

$

(1,002,239)

$

179,514

Denominator:

Weighted average number of common shares outstanding used in computing net income (loss) per share — basic

159,083

 

155,435

 

154,366

Effect of dilutive securities:

 

Stock options

306

Time-based restricted stock units

425

1,375

Performance-based restricted stock units

480

282

Restricted stock

96

115

2024 Convertible Notes assumed conversion

14,934

2026 Convertible Notes assumed conversion

14,934

Dilutive potential common shares

Weighted average number of common shares outstanding used in computing net income (loss) per share — diluted

160,084

 

155,435

186,312

Net income (loss) per share — basic

$

0.01

$

(6.45)

$

1.13

Net income (loss) per share — diluted

$

0.01

$

(6.45)

$

0.96

(1) The Company incurred a net loss during the year ended December 31, 2023 and therefore did not differentiate basic and diluted earnings per share, as the effect of dilutive securities would be anti-dilutive.

 

Schedule of potentially dilutive securities that have been excluded from computation of diluted weighted average shares outstanding

Year Ended December 31, 

    

2024

    

2023

    

2022

Stock options

4,821

 

4,829

 

6,152

Time-based restricted stock units

3,596

28

10

Performance-based restricted stock units

34

216

1,182

Note Hedge Warrants

2,514

8,318

2026 Convertible Notes

14,934

Total

 

23,385

 

7,587

 

15,662

 

v3.25.1
Collaboration, License, and Other Agreements (Tables)
12 Months Ended
Dec. 31, 2024
Table Text Blocks  
Schedule of revenue attributable to transactions from collaboration and license arrangements

Year Ended December 31, 

Collaborative Arrangements Revenue

2024

    

2023

    

2022

Linaclotide Collaboration and License Agreements:

AbbVie (North America)

$

343,154

    

$

433,242

    

$

401,498

AbbVie (Europe and other)

3,236

2,779

2,444

AstraZeneca (China, including Hong Kong and Macau)

364

 

430

 

635

Astellas (Japan)

1,673

 

1,799

 

2,001

Other Agreements:

Alnylam (GIVLAARI)

2,194

Asahi Kasei Pharma Corporation (apraglutide)

2,249

2,009

Other

734

2,476

1,824

Total collaborative arrangements revenue

$

351,410

$

442,735

$

410,596

 

AbbVie Plc  
Table Text Blocks  
Schedule of revenue attributable to transactions from collaboration and license arrangements

Year Ended December 31, 

 

2024

    

2023

    

2022

Collaborative arrangements revenue related to sales of LINZESS in the U.S.

$

340,394

$

430,463

$

398,767

Royalty revenue

 

2,760

 

2,779

 

2,731

Total collaborative arrangements revenue

$

343,154

$

433,242

$

401,498

 

v3.25.1
Fair Value of Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2024
Table Text Blocks  
Schedule of assets and liabilities measured at fair value on a recurring basis

Fair Value Measurements at Reporting Date Using

  

  

Quoted Prices in

    

Significant Other

    

Significant

Active Markets for

Observable

Unobservable

December 31, 

Identical Assets

Inputs

Inputs

2024

(Level 1)

(Level 2)

(Level 3)

Assets:

Cash and cash equivalents:

Money market funds

$

36,010

$

36,010

$

$

U.S. Treasury securities

11,044

11,044

Commercial paper

7,928

7,928

Total assets measured at fair value

$

54,982

$

36,010

$

18,972

$

Fair Value Measurements at Reporting Date Using

  

  

Quoted Prices in

    

Significant Other

    

Significant

Active Markets for

Observable

Unobservable

December 31, 

Identical Assets

Inputs

Inputs

2023

(Level 1)

(Level 2)

(Level 3)

Assets:

Cash and cash equivalents:

Money market funds

$

45,939

$

45,939

$

$

U.S. Treasury securities

10,507

10,507

Commercial paper

2,240

2,240

Total assets measured at fair value

$

58,686

$

45,939

$

12,747

$

 

v3.25.1
Leases (Tables)
12 Months Ended
Dec. 31, 2024
Table Text Blocks  
Schedule of components of lease cost and supplemental cash flow information

Year Ended December 31, 

2024

2023

2022

Operating lease cost

$

2,507

$

2,507

$

2,509

Short-term lease cost

1,520

1,241

1,070

Total lease cost

$

4,027

$

3,748

$

3,579

 

Year Ended December 31, 

2024

2023

2022

Cash paid for amounts included in the measurement of lease liabilities (in thousands)

$

3,126

$

3,065

$

3,114

Weighted-average remaining lease term of operating leases (in years)

5.4

6.4

7.3

Weighted-average discount rate of operating leases

5.8

%

5.8

%

5.8

%

 

Schedule of future minimum lease payments under non-cancelable operating leases

2025

$

3,189

2026

 

3,252

2027

3,317

2028

3,384

2029 and thereafter

 

4,902

Total future minimum lease payments

18,044

Less: present value adjustment

(2,551)

Operating lease liabilities

15,493

Less: current portion of operating lease liabilities

(3,189)

Operating lease liabilities, net of current portion

$

12,304

 

v3.25.1
Property and Equipment (Tables)
12 Months Ended
Dec. 31, 2024
Table Text Blocks  
Schedule of property and equipment

    

Estimated Useful Life

Asset Description

    

(In Years)

Laboratory equipment

 

5

Computer and office equipment

 

3

Furniture and fixtures

 

7

Software

 

3

 

December 31, 

 

2024

    

2023

Software

$

1,567

$

1,652

Leasehold improvements

 

7,407

 

7,407

Laboratory equipment

 

 

1,327

Furniture and fixtures

 

1,732

 

1,747

Computer and office equipment

 

2,154

 

2,341

 

12,860

 

14,474

Less accumulated depreciation and amortization

 

(8,365)

 

(8,889)

$

4,495

$

5,585

 

v3.25.1
Accrued Expenses and Other Current Liabilities (Tables)
12 Months Ended
Dec. 31, 2024
Table Text Blocks  
Schedule of accrued expenses and other current liabilities

    

December 31, 2024

    

December 31, 2023

Accrued compensation and benefits

$

14,547

$

19,937

Accrued interest

 

4,771

 

5,953

Deferred revenue

2,032

2,620

Accrued restructuring liabilities

560

8,303

Accrued taxes

521

1,244

Other

4,418

6,197

Total accrued expenses and other current liabilities

$

26,849

$

44,254

 

v3.25.1
Debt (Tables)
12 Months Ended
Dec. 31, 2024
Table Text Blocks  
Schedule of outstanding convertible senior notes

2024

2023

Principal:

    

 

2024 Convertible Notes

$

$

200,000

2026 Convertible Notes

200,000

200,000

Less: unamortized debt issuance costs

(1,012)

(2,131)

Net carrying amount

$

198,988

$

397,869

 

Schedule of future minimum payments details of debt

2025

$

3,000

2026

201,500

Total future minimum payments under the convertible senior notes

 

204,500

Less: amounts representing interest

(4,500)

Less: unamortized debt issuance costs

(1,012)

Convertible senior notes balance

$

198,988

 

Secured Debt  
Table Text Blocks  
Schedule of interest expense

Year Ended December 31, 

2024

    

2023

Contractual interest expense

$

27,643

$

14,718

Amortization of debt issuance costs

785

442

Other financing costs

50

101

Total interest expense

$

28,478

$

15,261

 

Convertible Senior Notes  
Table Text Blocks  
Schedule of interest expense

Year Ended December 31, 

 

2024

    

2023

2022

Contractual interest expense

$

3,688

$

4,500

$

5,745

Amortization of debt issuance costs

1,119

1,618

1,853

Total interest expense

$

4,807

$

6,118

$

7,598

 

v3.25.1
Employee Stock Benefit Plans (Tables)
12 Months Ended
Dec. 31, 2024
Table Text Blocks  
Summary of expense recognized for share-based compensation arrangements

Year Ended December 31, 

    

2024

    

2023

    

2022

Stock options

$

$

226

$

1,471

Time-based restricted stock units

21,425

19,829

17,643

Performance-based restricted stock units

 

6,422

 

9,321

 

5,008

Restricted stock awards

 

1,492

 

1,997

 

2,439

Employee stock purchase plan

 

451

 

502

 

412

Stock awards

60

130

 

75

VectivBio Holding AG stock options and RSUs accelerated upon change in control

 

 

27,548

 

Total share-based compensation expense

$

29,850

$

59,553

$

27,048

 

Share-based compensation expense reflected in the condensed consolidated statements of operations

Year Ended December 31, 

 

2024

    

2023

    

2022

Share-based compensation expense:

Research and development

$

7,552

$

17,448

$

4,936

Selling, general and administrative

 

22,298

 

41,194

 

22,112

Restructuring

911

Total share-based compensation expense included in operating expenses

29,850

59,553

27,048

Income tax benefit

3,414

2,964

1,644

Total share-based compensation expense, net of tax

$

26,436

$

56,589

$

25,404

 

Schedule of weighted-average assumptions used to estimate the fair value of Relative TSR PSUs and Absolute TSR PSUs

Year Ended December 31, 

2024

    

2023

    

2022

Relative

Absolute

Relative

Absolute

Relative

TSR PSUs

TSR PSUs

TSR PSUs

TSR PSUs

TSR PSUs

Fair value of common stock

$

12.41

$

12.41

$

11.39

$

10.74

$

11.13

Expected volatility

38.0

%  

38.0

%  

 

37.0

%  

37.0

%  

 

41.7

%  

Expected term (in years)

3.0

3.0

 

3.0

3.0

 

2.8

Risk-free interest rate

4.2

%  

4.2

%  

 

4.7

%  

4.7

%  

 

1.6

%  

Expected dividend yield

%  

%  

 

%  

%  

 

%  

 

Summary of restricted stock activity

Weighted-

    

    

Average

Number of

Grant Date

Shares

Fair Value

Unvested as of December 31, 2023

 

178,800

$

10.77

Granted

 

194,488

5.70

Vested

 

(178,800)

10.77

Forfeited

 

Unvested as of December 31, 2024

 

194,488

$

5.70

 

Summary of stock option activity

    

    

    

    

    

Weighted-

Weighted-

Number of

Average

Average

Aggregate

Stock

Exercise

Contractual

Intrinsic

Options

Price(1)

Life

Value

(in years)

(in thousands)

Outstanding at December 31, 2023

 

5,836,306

$

12.36

2.56

$

2,920

Granted

 

Exercised

 

(825,416)

12.19

Cancelled

 

(470,626)

12.51

Outstanding at December 31, 2024

 

4,540,264

12.37

1.97

Vested or expected to vest at December 31, 2024

 

4,540,264

12.37

1.97

Exercisable at December 31, 2024

 

4,540,264

12.37

1.97

(1)Amounts relating to stock options granted prior to the separation of the Company’s soluble guanylate cycle business, and certain other assets and liabilities, into Cyclerion Therapeutics, Inc. (the “Separation) on April 1, 2019 have not been adjusted to reflect the effect of the Separation on the Company’s stock price.

 

Schedule of unrecognized share-based compensation expense, net of estimated forfeitures by type of awards and weighted-average period

    

Unrecognized  

    

Weighted-Average

Expense, Net  

Remaining

of Estimated

Recognition

Forfeitures

Period

(in thousands)

(in years)

Type of award:

Restricted stock awards

$

513

0.46

Time-based restricted stock units

32,147

2.31

Performance-based restricted stock units

3,015

1.82

 

Time-based Restricted Stock Units  
Table Text Blocks  
Summary of RSU activity

Weighted-

Average

Number

Grant Date

    

 of RSUs

    

  Fair Value

Outstanding as of December 31, 2023

 

5,342,727

$

10.68

Granted

3,105,866

11.53

Vested and released

(1,886,372)

10.77

Forfeited

(1,210,714)

11.79

Outstanding as of December 31, 2024

 

5,351,507

$

10.89

 

Performance-based Restricted Stock Units  
Table Text Blocks  
Summary of RSU activity

Weighted-

Average

Number

Grant Date

    

 of PSUs

    

  Fair Value

Outstanding as of December 31, 2023

 

1,653,268

$

14.55

Granted

540,636

14.91

Vested and released

(802,800)

12.84

Forfeited

(282,598)

17.36

Outstanding as of December 31, 2024

 

1,108,506

$

13.91

 

v3.25.1
Income Taxes (Tables)
12 Months Ended
Dec. 31, 2024
Table Text Blocks  
Schedule of the components of income before income taxes

Year Ended December 31, 

2024

    

2023

    

2022

United States

$

167,091

$

226,532

$

252,422

Foreign

 

(101,893)

(1,174,601)

Income (loss) before income taxes

$

65,198

$

(948,069)

$

252,422

 

Schedule of the components of the provision for (benefit from) income taxes

Year Ended December 31, 

    

2024

    

2023

    

2022

Current taxes:

Federal

$

$

$

State

 

(4,487)

10,587

11,618

Foreign

 

754

346

Total current taxes

(3,733)

10,933

11,618

Deferred taxes:

Federal

 

32,584

47,864

52,191

State

35,467

24,693

13,548

Foreign

Total deferred taxes

68,051

72,557

65,739

Income tax expense

$

64,318

$

83,490

$

77,357

 

Reconciliation of income taxes from continuing operations computed using U.S. federal statutory rate to that reflected in operations

Year Ended December 31, 

    

2024

    

2023

    

2022

Income tax expense (benefit) using U.S. federal statutory rate

$

13,692

$

(199,094)

$

53,009

Acquisition accounting for VectivBio Acquisition

139,301

Foreign tax rate differential

8,111

93,394

Disallowed transaction costs

3,424

Permanent differences

 

788

 

704

 

(290)

State income taxes, net of federal benefit

 

10,992

 

14,024

 

16,160

Executive compensation - Section 162(m)

2,683

3,979

2,654

Excess tax benefits

749

1,903

3,613

Fair market valuation of Note Hedge Warrants and Convertible Note Hedges

(5)

(50)

Tax credits

 

(1,244)

 

(79)

 

(252)

Expiring net operating losses and tax credits

 

1,187

 

933

 

1,087

Effect of change in state tax rate on deferred tax assets and deferred tax liabilities

 

1,538

 

2,134

 

2,581

Change in the valuation allowance

 

25,564

 

22,492

 

(1,155)

Other

258

380

Income tax expense

$

64,318

$

83,490

$

77,357

 

Schedule of components of deferred tax assets and liabilities

December 31,

    

2024

    

2023

Deferred tax assets:

Net operating loss carryforwards

$

146,978

$

105,401

Tax credit carryforwards

 

58,494

 

58,437

Capitalized research and development

 

22,350

 

18,267

Share-based compensation

9,508

12,323

Basis difference on collaboration agreement for North America with AbbVie

3,585

80,638

Accruals and reserves

3,804

7,149

Basis difference on Convertible Notes

714

1,613

Intangible assets

3,411

10,968

Operating lease liability

3,892

4,774

Other

 

1,452

 

1,810

Total deferred tax assets

 

254,188

 

301,380

Deferred tax liabilities:

Fixed assets

(898)

(1,101)

Operating lease right-of-use asset

(2,777)

(2,306)

Total deferred tax liabilities

(3,675)

(3,407)

Net deferred tax asset

250,513

297,973

Valuation allowance

 

(106,279)

 

(85,649)

Net deferred tax asset

$

144,234

$

212,324

 

Summary of changes in the unrecognized tax benefits

    

December 31, 

2024

2023

2022

Balance at the beginning of the period

$

98,218

$

102,625

$

84,606

Increases based on tax positions related to the current period

4,093

85,446

101,225

Increases for tax positions assumed in VectivBio Acquisition

11,372

Decreases for tax positions in prior periods

(90,726)

(101,225)

(83,206)

Balance at the end of the period

$

11,585

$

98,218

$

102,625

 

v3.25.1
Retirement Plans (Tables)
12 Months Ended
Dec. 31, 2024
Table Text Blocks  
Schedule of amounts recognized through profit or loss

    

December 31, 

2024

2023

Current service cost

$

1,032

$

879

Amortization prior service cost

(57)

11

Amortization of unrecognized actuarial gains/(losses)

1,641

124

Interest cost

269

210

Expected return on plan assets

(416)

(235)

Curtailment and other

(2,086)

1,402

Administration costs

9

9

Total

$

392

$

2,400

 

Schedule of amounts recognized in other comprehensive income

    

December 31, 

2024

2023

Amortization prior service cost

$

57

$

(11)

Prior service (cost)/credit arising during financial year

(261)

106

Amortization of unrecognized actuarial gains/(losses)

(1,641)

(124)

Remeasurement (gain)/loss

Actuarial (gains)/losses arising from plan experience

490

70

Actuarial (gains)/losses arising from demographic assumption

989

Actuarial (gains)/losses arising from financial assumptions

906

Return on plan assets excluding interest income

(604)

(92)

Expense (income) recognized in other comprehensive income

$

(1,053)

$

938

 

Schedule of amounts included in the consolidated statements of financial position

    

December 31, 

2024

2023

Present value of defined benefit obligation

$

(18,462)

$

(37,547)

Fair value of plan assets

15,682

32,992

Net liability arising from defined benefit obligation

$

(2,780)

$

(4,555)

 

Schedule of movements in the present value of the defined benefit obligation

    

December 31, 

2024

2023

Beginning defined benefit obligation as of January 1, 2024/June 29, 2023

$

(37,547)

$

(18,865)

Current service cost

(1,032)

(879)

Contributions paid by employees

(837)

(1,214)

Interest expense on defined benefit obligation

(269)

(210)

Prior service (cost)/credit arising during financial year

261

(106)

Curtailment

2,086

(1,402)

Remeasurement (gain)/loss on defined benefit obligation

(1,396)

(1,059)

Benefits (paid)/deposited

18,144

(11,813)

Foreign currency exchange (gains)/loss

2,128

(1,999)

Ending defined benefit obligation as of December 31

$

(18,462)

$

(37,547)

 

Schedule of movements in the fair value of plan assets

    

December 31, 

2024

2023

Beginning fair value of plan assets as of January 1, 2024/June 29, 2023

$

32,992

$

16,693

Return on plan assets excluding interest income

416

235

Contributions paid by employer

837

1,215

Contributions paid by employees

837

1,214

Benefits (paid)/deposited

(18,144)

11,813

Actuarial gain/(loss) on plan assets

602

92

Administration expense

(9)

(9)

Foreign currency exchange gains/(losses)

(1,849)

1,739

Ending fair value of plan assets as of December 31

$

15,682

$

32,992

 

Schedule of the allocation of plan assets

December 31, 

2024

2023

Fixed income

$

9,566

61

%

$

12,143

60

%

Equities

3,921

25

5,060

25

Real estate

1,568

10

2,024

10

Other

627

4

1,012

5

Ending fair value of plan assets as of December 31

$

15,682

100

%

$

20,239

100

%

 

Schedule of principal assumptions used for the purpose of the actuarial valuations

    

December 31, 

2024

2023

Discount rate

1.00

%

1.50

%

Expected return on assets

2.50

%

2.70

%

Expected rate of salary increase

1.65

%

2.25

%

Expected rate of pension increase

%

%

Mortality rate

BVG 2020 GT

BVG 2020 GT

 

Schedule of future expected benefit payments

2025

$

6,502

2026

528

2027

1,055

2028

922

2029 and thereafter

4,276

Total

$

13,283

 

v3.25.1
Workforce Reduction and Restructuring (Tables)
12 Months Ended
Dec. 31, 2024
Table Text Blocks  
Schedule of accrued liabilities activity recorded in connection with the reductions in workforce and related restructuring activities

Amounts

Amounts

Accrued at

Accrued at

    

December 31, 2023

 

Charges

Amount Paid

Adjustments

December 31, 2024

Headquarters-based workforce reduction

$

270

$

(270)

$

VectivBio Acquisition-related workforce reduction

8,102

2,612

(9,990)

(109)

615

Total

 

$

8,372

$

2,612

$

(10,260)

$

(109)

$

615

 

 

Amounts

Amounts

Accrued at

Accrued at

December 31, 2022

 

Charges

Amount Paid

Adjustments

December 31, 2023

Headquarters-based workforce reduction

$

$

2,540

$

(2,232)

$

(38)

$

270

VectivBio Acquisition-related workforce reduction

14,903

(7,181)

380

8,102

Total

$

$

17,443

$

(9,413)

$

342

$

8,372

 

v3.25.1
Selected Quarterly Financial Data (Unaudited) (Tables)
12 Months Ended
Dec. 31, 2024
Table Text Blocks  
Selected Quarterly Financial Data (Unaudited)

First

Second

Third

Fourth

Total

Quarter

Quarter

Quarter

Quarter

Year

(in thousands, except per share data)

2024

    

    

    

    

    

    

    

    

    

    

Total revenues

$

74,877

$

94,396

$

91,592

$

90,545

$

351,410

Total cost and expenses

 

63,857

 

69,419

65,956

59,054

 

258,286

Other income (expense), net

 

(6,062)

 

(6,101)

(8,267)

(7,496)

 

(27,926)

Net income (loss)

 

(4,162)

 

(860)

3,646

2,256

 

880

Comprehensive income (loss)

(2,053)

(408)

2,064

5,231

4,834

Net income (loss) per share—basic (1)

(0.03)

(0.01)

0.02

0.01

0.01

Net income (loss) per share—diluted (1)

(0.03)

(0.01)

0.02

0.01

0.01

(1)The summation of quarterly diluted net income per share does not equate to the calculation for the full fiscal year, as quarterly calculations are performed on a discrete basis.

First

Second

Third

Fourth

Total

Quarter

Quarter

Quarter

Quarter

Year

(in thousands, except per share data)

2023

    

    

    

    

    

    

    

    

    

    

Total revenues

$

104,061

$

107,382

$

113,739

$

117,553

$

442,735

Total cost and expenses

 

43,964

 

1,190,521

73,716

 

79,964

 

1,388,165

Other income (expense), net

 

5,764

 

6,917

(8,091)

 

(7,229)

 

(2,639)

Net income (loss)

45,714

 

(1,089,478)

13,950

(1,745)

(1,031,559)

Net income (loss) attributable to Ironwood
Pharmaceuticals, Inc.

45,714

(1,062,187)

15,321

(1,087)

(1,002,239)

Comprehensive income (loss) attributable to Ironwood Pharmaceuticals, Inc.

 

45,714

(1,062,187)

14,569

 

(3,303)

 

(1,005,207)

Net income per share—basic (1)

0.30

(6.84)

0.10

(0.01)

(6.45)

Net income per share—diluted (1)

0.25

(6.84)

0.09

(0.01)

(6.45)

(1)The summation of quarterly diluted net income per share does not equate to the calculation for the full fiscal year, as quarterly calculations are performed on a discrete basis.

 

v3.25.1
Summary of Significant Accounting Policies - Segment Information (Details) - segment
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Segment information      
Number of reportable segments 1 1 1
v3.25.1
Summary of Significant Accounting Policies - Cash and Cash Equivalents (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Cash and Cash Equivalents    
Cash Equivalent included in cash and cash equivalent $ 55.0 $ 58.7
v3.25.1
Summary of Significant Accounting Policies - Restricted Cash (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Restricted Cash      
Restricted cash $ 0 $ 0 $ 1,735
v3.25.1
Summary of Significant Accounting Policies - Accounts Receivable (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Accounts Receivable    
Allowance for credit losses $ 0 $ 0
v3.25.1
Summary of Significant Accounting Policies - Concentrations of Credit Risk (Details) - AbbVie Plc
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Accounts receivable | Credit Concentration Risk      
Concentrations      
Concentration risk percentage (as a percent) 99.00% 87.00%  
Revenue from Contract with Customer Benchmark | Customer Concentration Risk      
Concentrations      
Concentration risk percentage (as a percent) 99.00% 98.00% 98.00%
v3.25.1
Summary of Significant Accounting Policies - Property and Equipment (Details)
Dec. 31, 2024
Laboratory equipment  
Property and Equipment  
Estimated useful life 5 years
Computer and office equipment  
Property and Equipment  
Estimated useful life 3 years
Furniture and fixtures  
Property and Equipment  
Estimated useful life 7 years
Software  
Property and Equipment  
Estimated useful life 3 years
v3.25.1
Summary of Significant Accounting Policies - Intangible Assets (Details)
Dec. 31, 2024
Assembled Workforce  
Finite-Lived Intangible Assets, Net  
Useful life 5 years
v3.25.1
Summary of Significant Accounting Policies - Derivative Assets and Liabilities (Details) - Convertible Senior Notes
Sep. 16, 2019
Aug. 31, 2019
Aug. 12, 2019
Jun. 30, 2015
2.25% Convertible Senior Notes due 2022        
Debt        
Stated interest rate (as a percent) 2.25%     2.25%
0.75% Convertible Senior Notes due 2024        
Debt        
Stated interest rate (as a percent)   0.75% 0.75%  
1.50% Convertible Senior Notes due 2026        
Debt        
Stated interest rate (as a percent)   1.50% 1.50%  
v3.25.1
Summary of Significant Accounting Policies - Revenue Recognition (Details)
12 Months Ended
Dec. 31, 2024
U.S. | AbbVie Plc  
Collaboration agreements  
Percentage of the pre-tax net profit or loss (as a percent) 50.00%
v3.25.1
Summary of Significant Accounting Policies - Patent Costs (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Patent Costs      
Selling, general and administrative $ 144,272 $ 158,314 $ 115,994
Patents      
Patent Costs      
Selling, general and administrative $ 2,200 $ 1,800 $ 1,300
v3.25.1
Summary of Significant Accounting Policies - New Accounting Pronouncements (Details)
12 Months Ended
Dec. 31, 2024
Accounting Standards Update 2023-07  
New Accounting Pronouncements  
Change in Accounting Principle, Accounting Standards Update, Adopted true
Accounting Standards Update 2023-09  
New Accounting Pronouncements  
Change in Accounting Principle, Accounting Standards Update, Adopted false
Accounting Standards Update 2020-06  
New Accounting Pronouncements  
Change in Accounting Principle, Accounting Standards Update, Adopted true
Change in Accounting Principle, Accounting Standards Update, Adoption Date Jan. 01, 2022
Change in Accounting Principle, Accounting Standards Update, Transition Option Elected us-gaap:AccountingStandardsUpdate202006CumulativeEffectPeriodOfAdoptionMember
v3.25.1
Summary of Significant Accounting Policies - Cumulative-effect Adjustment - Tabular Disclosure (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2021
New Accounting Pronouncements      
Deferred tax assets $ 144,234 $ 212,324 $ 333,294
Current portion of convertible senior notes   199,560 116,858
Long-term portion of convertible senior notes 198,988 198,309 337,333
Additional paid-in capital 1,395,317 1,355,195 1,543,357
Retained earnings $ (1,697,735) $ (1,698,615) (937,608)
Cumulative Effect, Period of Adoption, Adjusted Balance      
New Accounting Pronouncements      
Deferred tax assets     350,149
Current portion of convertible senior notes     120,439
Long-term portion of convertible senior notes     394,657
Additional paid-in capital     1,433,140
Retained earnings     (871,441)
Accounting Standards Update 2020-06 | Cumulative Effect, Period of Adoption, Adjustment      
New Accounting Pronouncements      
Deferred tax assets     16,855
Current portion of convertible senior notes     3,581
Long-term portion of convertible senior notes     57,324
Additional paid-in capital     (110,217)
Retained earnings     $ 66,167
v3.25.1
Summary of Significant Accounting Policies - Cumulative-effect Adjustment - Additional Information (Details)
$ in Millions
12 Months Ended
Dec. 31, 2022
USD ($)
Accounting Standards Update 2020-06  
New Accounting Pronouncements  
Interest expense, noncash, expected increase (decrease) during period $ (22.1)
v3.25.1
Acquisitions - General Information (Details) - VectivBio Holding AG and its subsidiaries
$ / shares in Units, $ in Billions
Jun. 29, 2023
USD ($)
$ / shares
Acquisitions  
Asset acquisition, ownership interest, percentage (as a percent) 98.00%
Asset acquisition, share price (in dollars per share) | $ / shares $ 17
Aggregate consideration paid | $ $ 1.2
v3.25.1
Acquisitions - Noncontrolling Interest (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 12, 2023
Dec. 31, 2023
Jun. 29, 2023
Jun. 28, 2023
Noncontrolling interests        
Squeeze-out merger, cash paid   $ 26,311    
VectivBio Holding AG and its subsidiaries        
Noncontrolling interests        
Squeeze-out merger, cash paid $ 26,300      
Noncontrolling interests        
Noncontrolling interests   $ 0    
VectivBio Holding AG and its subsidiaries        
Noncontrolling interests        
Shares outstanding (in shares)     1,547,723  
Share price (in dollars per share)       $ 16.94
v3.25.1
Acquisitions - Total Consideration Paid - Tabular Disclosure (Details) - VectivBio Holding AG and its subsidiaries
$ in Thousands
Jun. 29, 2023
USD ($)
Asset Acquisition, Consideration Transferred  
Cash consideration paid to selling shareholders $ 1,041,391
Cash consideration paid to settle VectivBio RSUs and stock options 78,003
Cash consideration paid to settle VectivBio warrant liabilities 3,720
Transaction costs 26,270
Fair value of non-controlling interest 26,218
Total purchase consideration $ 1,175,602
v3.25.1
Acquisitions - Total Consideration Paid - Additional Information (Details) - VectivBio Holding AG and its subsidiaries
Jun. 29, 2023
$ / shares
shares
Acquisitions  
Asset acquisition, consideration transferred, cash consideration paid, selling shareholders, shares tendered, shares (in shares) | shares 61,258,315
Asset acquisition, consideration transferred, cash consideration paid, selling shareholders, shares tendered, share price (in dollars per share) $ 17
Asset acquisition, consideration transferred, cash consideration paid, settle restricted stock units and stock options, shares settled, shares (in shares) | shares 8,904,171
Asset acquisition, consideration transferred, cash consideration paid, settle restricted stock units and stock options, shares settled, share price (in dollars per share) $ 17
Asset acquisition, consideration transferred, cash consideration paid, settle warrant liabilities, warrants outstanding, shares (in shares) | shares 324,190
Asset acquisition, consideration transferred, cash consideration paid, settle warrant liabilities, warrants outstanding, price per warrant (in dollars per share) $ 11.4757
Asset acquisition, consideration transferred, cash consideration paid, settle warrant liabilities, warrants outstanding, share price (in dollars per share) 17
Asset acquisition, consideration transferred, cash consideration paid, settle warrant liabilities, warrants outstanding, strike price (in dollars per share) $ 5.5243
v3.25.1
Acquisitions - Acquired In-process Research and Development (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Jun. 30, 2023
Dec. 31, 2023
Acquisitions    
Asset acquisition, acquired in-process research and development expense   $ 1,095,449
VectivBio Holding AG and its subsidiaries    
Acquisitions    
Asset acquisition, acquired in-process research and development expense $ 1,100,000  
v3.25.1
Acquisitions - Assets Acquired and Liabilities Assumed (Details) - VectivBio Holding AG and its subsidiaries
$ in Thousands
Jun. 29, 2023
USD ($)
Acquisitions  
Cash and cash equivalents $ 123,340
Prepaid expenses and other current assets 10,867
Property and equipment 126
Intangible assets 4,100
Acquired in-process research and development 1,095,449
Total assets acquired 1,233,882
Current liabilities 42,377
Other liabilities 15,903
Total liabilities assumed 58,280
Net assets acquired $ 1,175,602
v3.25.1
Acquisitions - Expenses (Details) - VectivBio Holding AG and its subsidiaries - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Acquisitions    
Asset acquisition, acquisition related costs $ 3.6 $ 55.6
Selling, General and Administrative Expenses    
Acquisitions    
Asset acquisition, acquisition related costs 1.1 25.6
Research and Development Expense    
Acquisitions    
Asset acquisition, acquisition related costs   15.1
Restructuring Charges    
Acquisitions    
Asset acquisition, acquisition related costs $ 2.5 $ 14.9
v3.25.1
Acquisitions - Finite-lived Intangible Assets (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Jun. 29, 2023
Dec. 31, 2024
Finite-Lived Intangible Assets, Net      
Intangible assets, net $ 3,682   $ 2,860
Assembled Workforce      
Finite-Lived Intangible Assets, Net      
Useful life     5 years
Amortization expense $ 400 $ 400 $ 800
Intangible assets, net     $ 2,900
v3.25.1
Acquisitions - Future Amortization Expense (Details)
$ in Millions
Dec. 31, 2024
USD ($)
Future annual amortization expense  
2025 $ 0.8
2026 0.8
2027 0.8
2028 $ 0.4
v3.25.1
Net Income (Loss) Per Share - Computation (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2024
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Numerator:                      
Net income (loss) $ 2,256 $ 3,646 $ (860) $ (4,162) $ (1,745) $ 13,950 $ (1,089,478) $ 45,714 $ 880 $ (1,031,559) $ 175,065
Less: Net loss attributable to noncontrolling interests                   (29,320)  
Net Income (Loss)         $ (1,087) $ 15,321 $ (1,062,187) $ 45,714 880 (1,002,239) 175,065
Numerator used in computing net income (loss) per share - basic                 880 (1,002,239) 175,065
Numerator used in computing net income (loss) per share - diluted                 $ 880 $ (1,002,239) $ 179,514
Denominator:                      
Weighted average number of common shares outstanding used in computing net income (loss) per share - basic (in shares)                 159,083 155,435 154,366
Effect of dilutive securities:                      
Weighted average number of common shares outstanding used in computing net income (loss) per share - diluted (in shares)                 160,084 155,435 186,312
Net income (loss) per share - basic (in dollars per share) $ 0.01 $ 0.02 $ (0.01) $ (0.03) $ (0.01) $ 0.1 $ (6.84) $ 0.3 $ 0.01 $ (6.45) $ 1.13
Net income (loss) per share - diluted (in dollars per share) $ 0.01 $ 0.02 $ (0.01) $ (0.03) $ (0.01) $ 0.09 $ (6.84) $ 0.25 $ 0.01 $ (6.45) $ 0.96
0.75% Convertible Senior Notes due 2024                      
Numerator:                      
Add back interest expense, net of tax benefit, on assumed conversion of convertible notes                     $ 1,781
Effect of dilutive securities:                      
Effect of dilutive securities, convertible notes                     14,934
1.50% Convertible Senior Notes due 2026                      
Numerator:                      
Add back interest expense, net of tax benefit, on assumed conversion of convertible notes                     $ 2,668
Effect of dilutive securities:                      
Effect of dilutive securities, convertible notes                     14,934
Employee Stock Option                      
Effect of dilutive securities:                      
Effect of dilutive securities, share-based compensation                     306
Time-based Restricted Stock Units                      
Effect of dilutive securities:                      
Effect of dilutive securities, share-based compensation                 425   1,375
Performance-based Restricted Stock Units                      
Effect of dilutive securities:                      
Effect of dilutive securities, share-based compensation                 480   282
Restricted Stock                      
Effect of dilutive securities:                      
Effect of dilutive securities, share-based compensation                 96   115
v3.25.1
Net Income (Loss) Per Share - Potentially Dilutive Securities (Details) - shares
shares in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Potentially dilutive securities      
Total potentially dilutive securities excluded from the computation of diluted weighted average shares outstanding (in shares) 23,385 7,587 15,662
Employee Stock Option      
Potentially dilutive securities      
Total potentially dilutive securities excluded from the computation of diluted weighted average shares outstanding (in shares) 4,821 4,829 6,152
Time-based Restricted Stock Units      
Potentially dilutive securities      
Total potentially dilutive securities excluded from the computation of diluted weighted average shares outstanding (in shares) 3,596 28 10
Performance-based Restricted Stock Units      
Potentially dilutive securities      
Total potentially dilutive securities excluded from the computation of diluted weighted average shares outstanding (in shares) 34 216 1,182
Note Hedge Warrants      
Potentially dilutive securities      
Total potentially dilutive securities excluded from the computation of diluted weighted average shares outstanding (in shares)   2,514 8,318
1.50% Convertible Senior Notes due 2026      
Potentially dilutive securities      
Total potentially dilutive securities excluded from the computation of diluted weighted average shares outstanding (in shares) 14,934    
v3.25.1
Collaboration, License, and Other Agreements - Summary (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Dec. 31, 2024
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2023
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Revenues:                        
Revenue $ 90,545 $ 91,592 $ 94,396 $ 74,877 $ 117,553 $ 113,739 $ 107,382 $ 104,061   $ 351,410 $ 442,735 $ 410,596
Collaborative arrangements revenue                        
Revenues:                        
Revenue                   351,410 442,735 410,596
Collaborative arrangement, other agreements                        
Revenues:                        
Revenue                   734 2,476 1,824
AbbVie Plc | North America | Collaborative arrangements revenue                        
Revenues:                        
Revenue                   343,154 433,242 401,498
AbbVie Plc | North America | Collaborative arrangement, collaboration and license agreements                        
Revenues:                        
Revenue                   343,154 433,242 401,498
AbbVie Plc | North America | Royalty                        
Revenues:                        
Revenue                   2,760 2,779 2,731
AbbVie Plc | Europe and Other | Collaborative arrangement, collaboration and license agreements                        
Revenues:                        
Revenue                   3,236 2,779 2,444
AbbVie Plc | Europe and Other | Royalty                        
Revenues:                        
Revenue                   3,200 2,800 2,400
AstraZeneca | Collaborative arrangement, collaboration and license agreements                        
Revenues:                        
Revenue                   364 430 635
AstraZeneca | Royalty                        
Revenues:                        
Revenue                   400 400 600
Astellas Pharma Inc. | Collaborative arrangement, collaboration and license agreements                        
Revenues:                        
Revenue                   1,673 1,799 2,001
Alnylam | Royalty                        
Revenues:                        
Revenue                       $ 2,194
Asahi Kasei Pharma Corporation | Collaborative arrangement, co-promotion agreements                        
Revenues:                        
Revenue                   2,249 $ 2,009  
Asahi Kasei Pharma Corporation | Collaborative arrangement, development and commercialization agreements                        
Revenues:                        
Revenue                 $ 2,000 $ 2,200    
v3.25.1
Collaboration, License, and Other Agreements - Accounts Receivable (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Accounts receivable, net    
Accounts receivable, net $ 81.9 $ 129.1
Accounts receivable, net of accounts payable 81.3 112.6
AbbVie Plc    
Accounts receivable, net    
Accounts payable $ 3.1 $ 4.3
v3.25.1
Collaboration, License, and Other Agreements - North America - General Information (Details)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2024
USD ($)
item
$ / shares
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Collaboration, License, Promotion and Other Commercial Agreements      
Research and development expense $ 111,421 $ 116,085 $ 44,265
AbbVie Plc      
Collaboration, License, Promotion and Other Commercial Agreements      
Remaining commercial-period performance obligations | item 3    
Cost sharing amount, reduction to research and development $ 8,600 11,600 8,900
Collaborative arrangement, percentage of obligation of development costs incurred 50.00%    
Percentage of net profit from commercialization (as a percent) 50.00%    
Percentage of net loss from commercialization (as a percent) 50.00%    
North America      
Collaboration, License, Promotion and Other Commercial Agreements      
Research and development expense $ 7,400 $ 7,000 $ 8,000
North America | AbbVie Plc | Collaborative arrangements, LINZESS      
Collaboration, License, Promotion and Other Commercial Agreements      
Revenue, reduction $ 43,000    
Net income per share, excluding collaborative arrangements revenue reduction - basic (in dollars per share) | $ / shares $ 0.21    
Net income per share, excluding collaborative arrangements revenue reduction - diluted (in dollars per share) | $ / shares $ 0.19    
v3.25.1
Collaboration, License, and Other Agreements - North America - Collaborative Arrangements Revenue (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2024
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Revenues:                      
Revenue $ 90,545 $ 91,592 $ 94,396 $ 74,877 $ 117,553 $ 113,739 $ 107,382 $ 104,061 $ 351,410 $ 442,735 $ 410,596
Collaborative arrangements revenue                      
Revenues:                      
Revenue                 351,410 442,735 410,596
AbbVie Plc | North America | Collaborative arrangements revenue                      
Revenues:                      
Revenue                 343,154 433,242 401,498
AbbVie Plc | North America | Collaborative arrangement, collaboration and license agreements                      
Revenues:                      
Revenue                 343,154 433,242 401,498
AbbVie Plc | North America | Collaborative arrangements, LINZESS                      
Revenues:                      
Revenue                 340,394 430,463 398,767
AbbVie Plc | North America | Royalty                      
Revenues:                      
Revenue                 $ 2,760 $ 2,779 $ 2,731
v3.25.1
Collaboration, License, and Other Agreements - North America - Commercial Efforts (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2024
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Collaboration, License, Promotion and Other Commercial Agreements                      
Revenue $ 90,545 $ 91,592 $ 94,396 $ 74,877 $ 117,553 $ 113,739 $ 107,382 $ 104,061 $ 351,410 $ 442,735 $ 410,596
Selling, general and administrative                 144,272 158,314 115,994
Collaborative arrangements revenue                      
Collaboration, License, Promotion and Other Commercial Agreements                      
Revenue                 351,410 442,735 410,596
Collaborative arrangements, LINZESS | AbbVie Plc | U.S.                      
Collaboration, License, Promotion and Other Commercial Agreements                      
Selling, general and administrative                 $ 39,300 $ 37,100 $ 34,300
v3.25.1
Collaboration, License, and Other Agreements - North America - Royalty Revenue (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2024
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Revenues:                      
Revenue $ 90,545 $ 91,592 $ 94,396 $ 74,877 $ 117,553 $ 113,739 $ 107,382 $ 104,061 $ 351,410 $ 442,735 $ 410,596
Collaborative arrangements revenue                      
Revenues:                      
Revenue                 351,410 442,735 410,596
Collaborative arrangements revenue | North America | AbbVie Plc                      
Revenues:                      
Revenue                 343,154 433,242 401,498
Collaborative arrangement, collaboration and license agreements | North America | AbbVie Plc                      
Revenues:                      
Revenue                 343,154 433,242 401,498
Royalty | North America | AbbVie Plc                      
Revenues:                      
Revenue                 2,760 2,779 2,731
Royalty | Canada and Mexico | AbbVie Plc                      
Revenues:                      
Revenue                 $ 2,800 $ 2,800 $ 2,700
v3.25.1
Collaboration, License, and Other Agreements - European and Other Territories (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2024
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Oct. 31, 2015
Collaboration, License, Promotion and Other Commercial Agreements                        
Revenue $ 90,545 $ 91,592 $ 94,396 $ 74,877 $ 117,553 $ 113,739 $ 107,382 $ 104,061 $ 351,410 $ 442,735 $ 410,596  
AbbVie Plc                        
Collaboration, License, Promotion and Other Commercial Agreements                        
Collaborative arrangement, royalty, net sales of products containing active ingredient, period following first commercial sale                 5 years      
Collaborative arrangements revenue                        
Collaboration, License, Promotion and Other Commercial Agreements                        
Revenue                 $ 351,410 442,735 410,596  
Collaborative arrangement, collaboration and license agreements | AbbVie Plc | Europe and Other                        
Collaboration, License, Promotion and Other Commercial Agreements                        
Revenue                 3,236 2,779 2,444  
Royalty | AbbVie Plc | Europe and Other                        
Collaboration, License, Promotion and Other Commercial Agreements                        
Revenue                 $ 3,200 $ 2,800 $ 2,400  
License | AbbVie Plc                        
Collaboration, License, Promotion and Other Commercial Agreements                        
Remaining milestone payment due upon the amendment to the license agreement                       $ 42,500
v3.25.1
Collaboration, License, and Other Agreements - Japan (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2024
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Collaboration, License, Promotion and Other Commercial Agreements                      
Revenue $ 90,545 $ 91,592 $ 94,396 $ 74,877 $ 117,553 $ 113,739 $ 107,382 $ 104,061 $ 351,410 $ 442,735 $ 410,596
Collaborative arrangements revenue                      
Collaboration, License, Promotion and Other Commercial Agreements                      
Revenue                 351,410 442,735 410,596
Collaborative arrangement, collaboration and license agreements | Astellas Pharma Inc.                      
Collaboration, License, Promotion and Other Commercial Agreements                      
Revenue                 1,673 1,799 2,001
Royalty | Astellas Pharma Inc., 2009 License Agreement, Amended 2019                      
Collaboration, License, Promotion and Other Commercial Agreements                      
Revenue                 $ 1,700 $ 1,800 $ 2,000
v3.25.1
Collaboration, License, and Other Agreements - China, Hong Kong and Macau (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2024
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Collaboration, License, Promotion and Other Commercial Agreements                      
Revenue $ 90,545 $ 91,592 $ 94,396 $ 74,877 $ 117,553 $ 113,739 $ 107,382 $ 104,061 $ 351,410 $ 442,735 $ 410,596
Collaborative arrangements revenue                      
Collaboration, License, Promotion and Other Commercial Agreements                      
Revenue                 $ 351,410 442,735 410,596
AstraZeneca                      
Collaboration, License, Promotion and Other Commercial Agreements                      
Collaborative arrangement, royalty percentage, aggregate annual net product sales, maximum (as a percent) 20.00%               20.00%    
Milestone payment to be received by company upon milestone achievement                 $ 90,000    
Collaborative arrangement, non-contingent receivable, current         $ 15,000         15,000  
AstraZeneca | Collaborative arrangement, collaboration and license agreements                      
Collaboration, License, Promotion and Other Commercial Agreements                      
Revenue                 364 430 635
AstraZeneca | Royalty                      
Collaboration, License, Promotion and Other Commercial Agreements                      
Revenue                 $ 400 $ 400 $ 600
v3.25.1
Collaboration, License, and Other Agreements - Other Collaboration and License Agreements (Details)
$ in Thousands, ¥ in Millions
1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Apr. 30, 2024
USD ($)
Apr. 30, 2024
JPY (¥)
Apr. 30, 2023
USD ($)
Mar. 31, 2022
USD ($)
Mar. 31, 2022
JPY (¥)
Dec. 31, 2024
USD ($)
item
Sep. 30, 2024
USD ($)
Jun. 30, 2024
USD ($)
Mar. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Sep. 30, 2023
USD ($)
Jun. 30, 2023
USD ($)
Mar. 31, 2023
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2024
USD ($)
item
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Jun. 28, 2023
USD ($)
Mar. 31, 2022
JPY (¥)
Nov. 30, 2021
USD ($)
Collaboration, License, Promotion and Other Commercial Agreements                                        
Revenue           $ 90,545 $ 91,592 $ 94,396 $ 74,877 $ 117,553 $ 113,739 $ 107,382 $ 104,061   $ 351,410 $ 442,735 $ 410,596      
Deferred revenue, current           2,032       2,620       $ 2,620 2,032 2,620        
Research and development expense                             111,421 116,085 44,265      
Accrued research and development costs           6,681       $ 21,331       21,331 6,681 21,331        
Collaborative arrangements revenue                                        
Collaboration, License, Promotion and Other Commercial Agreements                                        
Revenue                             351,410 442,735 410,596      
COUR Pharmaceuticals Development Company, Inc.                                        
Collaboration, License, Promotion and Other Commercial Agreements                                        
Collaborative arrangement, upfront payment     $ 6,000                                  
Collaborative arrangement, option to acquire license, exercise price, payable                                       $ 35,000
Research and development expense                       $ 6,000                
Collaborative arrangement, right to apply credit against future amounts due     $ 6,600                                  
Asahi Kasei Pharma Corporation                                        
Collaboration, License, Promotion and Other Commercial Agreements                                        
Deferred revenue, current           2,000                 2,000          
Deferred revenue, noncurrent           $ 1,800                 $ 1,800          
Deferred revenue                                   $ 4,300    
Collaborative arrangement, upfront payment received       $ 24,600 ¥ 3,000                              
Collaborative arrangement, development related payment, eligible to receive       13,100                             ¥ 1,600  
Collaborative arrangement, development related payment, received       9,000 1,100                              
Collaborative arrangement, development milestones, eligible to receive       8,200                             1,000  
Collaborative arrangement, development milestones, received $ 4,100 ¥ 500   4,100 ¥ 500                              
Collaborative arrangement, commercial and sales-based milestone payments, eligible to receive       $ 155,800                             ¥ 19,000  
Collaborative arrangement, performance obligations, number | item           2                 2          
Asahi Kasei Pharma Corporation | Collaborative arrangement, co-promotion agreements                                        
Collaboration, License, Promotion and Other Commercial Agreements                                        
Revenue                             $ 2,249 $ 2,009        
Asahi Kasei Pharma Corporation | Collaborative arrangement, development and commercialization agreements                                        
Collaboration, License, Promotion and Other Commercial Agreements                                        
Revenue                           $ 2,000 $ 2,200          
Alnylam | Royalty                                        
Collaboration, License, Promotion and Other Commercial Agreements                                        
Revenue                                 $ 2,194      
v3.25.1
Fair Value of Financial Instruments - General Information (Details)
Dec. 31, 2024
Fair Value of Financial Instruments  
Threshold percentage of collateralized value (as a percent) 102.00%
v3.25.1
Fair Value of Financial Instruments - Measured on Recurring Basis (Details) - Recurring basis - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Assets:    
Total assets measured at fair value $ 54,982 $ 58,686
Money market funds    
Assets:    
Cash and cash equivalents 36,010 45,939
U.S. Treasury securities    
Assets:    
Cash and cash equivalents 11,044 10,507
Commercial paper    
Assets:    
Cash and cash equivalents 7,928 2,240
Fair Value, Inputs, Level 1    
Assets:    
Total assets measured at fair value 36,010 45,939
Fair Value, Inputs, Level 1 | Money market funds    
Assets:    
Cash and cash equivalents 36,010 45,939
Fair Value, Inputs, Level 2    
Assets:    
Total assets measured at fair value 18,972 12,747
Fair Value, Inputs, Level 2 | U.S. Treasury securities    
Assets:    
Cash and cash equivalents 11,044 10,507
Fair Value, Inputs, Level 2 | Commercial paper    
Assets:    
Cash and cash equivalents $ 7,928 $ 2,240
v3.25.1
Fair Value of Financial Instruments - Convertible Senior Notes (Details) - Convertible Senior Notes - USD ($)
$ in Thousands
Dec. 31, 2024
Jun. 30, 2024
Dec. 31, 2023
Jun. 30, 2022
Sep. 16, 2019
Aug. 31, 2019
Aug. 12, 2019
Jun. 30, 2015
2.25% Convertible Senior Notes due 2022                
Fair value disclosures                
Debt instrument, face amount               $ 335,700
Stated interest rate (as a percent)         2.25%     2.25%
Debt redeemed/repurchased       $ 120,700   $ 215,000    
0.75% Convertible Senior Notes due 2024                
Fair value disclosures                
Debt instrument, face amount     $ 200,000     $ 200,000    
Stated interest rate (as a percent)           0.75% 0.75%  
Debt redeemed/repurchased   $ 200            
0.75% Convertible Senior Notes due 2024 | Fair Value, Inputs, Level 2                
Fair value disclosures                
Estimated fair value     209,600          
1.50% Convertible Senior Notes due 2026                
Fair value disclosures                
Debt instrument, face amount $ 200,000   200,000     $ 200,000    
Stated interest rate (as a percent)           1.50% 1.50%  
1.50% Convertible Senior Notes due 2026 | Fair Value, Inputs, Level 2                
Fair value disclosures                
Estimated fair value $ 186,600   $ 217,100          
v3.25.1
Fair Value of Financial Instruments - Capped Calls (Details) - Capped Calls with Respect to 2024 Convertible Notes and 2026 Convertible Notes
1 Months Ended
Aug. 31, 2019
$ / shares
$ / item
Capped Calls  
Strike price (in dollars per share) | $ / shares $ 13.39
Cap price | $ / item 17.05
v3.25.1
Leases - Letters of Credit (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Summer Street Lease and Vehicle Lease    
Leases    
Letters of credit outstanding, amount $ 1.2 $ 1.2
v3.25.1
Leases - Lease Cost (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Lease Cost      
Operating lease cost $ 2,507 $ 2,507 $ 2,509
Short-term lease cost 1,520 1,241 1,070
Total lease cost $ 4,027 $ 3,748 $ 3,579
v3.25.1
Leases - Supplemental Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Operating Leases      
Cash paid for amounts included in the measurement of lease liabilities $ 3,126 $ 3,065 $ 3,114
Weighted-average remaining lease term of operating leases 5 years 4 months 24 days 6 years 4 months 24 days 7 years 3 months 18 days
Weighted-average discount rate of operating leases (as a percent) 5.80% 5.80% 5.80%
v3.25.1
Leases - Summer Street Lease (Details)
ft² in Thousands, $ in Thousands
1 Months Ended 12 Months Ended
Jun. 30, 2019
ft²
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Operating Leases        
Weighted-average discount rate of operating leases (as a percent)   5.80% 5.80% 5.80%
Operating lease right-of-use assets   $ 11,028 $ 12,586  
Operating lease liability   15,493    
Operating lease cost   2,507 2,507 $ 2,509
Summer Street Lease        
Operating Leases        
Rentable area leased (in square feet) | ft² 39      
Annual rent escalation (as a percent) 2.00%      
Option to extend the term of the lease true      
Operating lease, renewal term 5 years      
Weighted-average discount rate of operating leases (as a percent) 5.80%      
Operating lease right-of-use assets   11,000 12,600  
Operating lease liability   15,500 17,700  
Operating lease cost   $ 2,500 $ 2,500 $ 2,500
v3.25.1
Leases - Future Minimum Lease Payments (Details)
$ in Thousands
Dec. 31, 2024
USD ($)
Future Minimum Lease Payments  
2025 $ 3,189
2026 3,252
2027 3,317
2028 3,384
2029 and thereafter 4,902
Total future minimum lease payments $ 18,044
v3.25.1
Leases - Operating Lease Obligations (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Operating lease obligations    
Total future minimum lease payments $ 18,044  
Less: present value adjustment (2,551)  
Operating lease liabilities 15,493  
Less: current portion of operating lease liabilities (3,189) $ (3,126)
Operating lease liabilities, net of current portion $ 12,304 $ 14,543
v3.25.1
Property and Equipment - Tabular Disclosure (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Property and Equipment    
Property and equipment, gross $ 12,860 $ 14,474
Less accumulated depreciation and amortization (8,365) (8,889)
Property and equipment, net 4,495 5,585
Software    
Property and Equipment    
Property and equipment, gross 1,567 1,652
Leasehold improvements    
Property and Equipment    
Property and equipment, gross 7,407 7,407
Laboratory equipment    
Property and Equipment    
Property and equipment, gross   1,327
Furniture and fixtures    
Property and Equipment    
Property and equipment, gross 1,732 1,747
Computer and office equipment    
Property and Equipment    
Property and equipment, gross $ 2,154 $ 2,341
v3.25.1
Property and Equipment - Depreciation Expense (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Property and Equipment      
Depreciation and amortization $ 1.2 $ 1.2 $ 1.4
v3.25.1
Accrued Expenses and Other Current Liabilities - Tabular Disclosure (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Accrued Expenses    
Accrued compensation and benefits $ 14,547 $ 19,937
Accrued interest 4,771 5,953
Deferred revenue 2,032 2,620
Accrued restructuring liabilities 560 8,303
Accrued taxes 521 1,244
Other 4,418 6,197
Total accrued expenses and other current liabilities $ 26,849 $ 44,254
v3.25.1
Accrued Expenses and Other Current Liabilities - Additional Information (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Accrued Expenses    
Other accrued expenses $ 4,418 $ 6,197
Other accrued liabilities, uninvoiced vendor liabilities $ 4,300 $ 6,100
v3.25.1
Debt - General Information (Details)
$ in Thousands
1 Months Ended 12 Months Ended
May 31, 2023
USD ($)
Jun. 30, 2015
USD ($)
Dec. 31, 2024
USD ($)
item
Dec. 31, 2023
USD ($)
Sep. 30, 2024
USD ($)
Jun. 30, 2023
USD ($)
Jun. 30, 2022
USD ($)
Sep. 16, 2019
Aug. 31, 2019
USD ($)
Debt                  
Proceeds from revolving credit facility     $ 150,000 $ 400,000          
Repayments of revolving credit facility     65,000 100,000          
Payments for convertible note hedges   $ 21,100              
2.25% Convertible Senior Notes due 2022 | Convertible Senior Notes                  
Debt                  
Debt instrument, face amount   335,700              
Net proceed received   324,000              
Fees and expenses   $ 11,700              
Stated interest rate (as a percent)   2.25%           2.25%  
Debt redeemed/repurchased             $ 120,700   $ 215,000
Debt redemption/repurchase price                 $ 227,300
Revolving Credit Agreement | Secured Debt                  
Debt                  
Line of credit facility, frequency of commitment fee payment quarterly                
Percentage of capital stock of foreign subsidiaries pledged (as a percent) 65.00%                
Additional borrowing capacity $ 200,000                
Additional borrowing capacity, as percentage 100.00%                
Additional borrowing capacity, trailing period 12 months                
Revolving Credit Agreement | Secured Debt | Minimum                  
Debt                  
Line of credit facility, unused capacity, commitment fee percentage 0.30%                
Revolving Credit Agreement | Secured Debt | Maximum                  
Debt                  
Line of credit facility, unused capacity, commitment fee percentage 0.425%                
Revolving Credit Agreement | Secured Debt | Secured Overnight Financing Rate (SOFR), Adjusted Term Secured | Minimum                  
Debt                  
Debt instrument, basis spread on variable rate (as a percent) 1.75%                
Revolving Credit Agreement | Secured Debt | Secured Overnight Financing Rate (SOFR), Adjusted Term Secured | Maximum                  
Debt                  
Debt instrument, basis spread on variable rate (as a percent) 3.00%                
Revolving Credit Agreement | Secured Debt | Secured Overnight Financing Rate (SOFR), One-month Adjusted Term                  
Debt                  
Debt instrument, basis spread on variable rate (as a percent) 1.00%                
Revolving Credit Agreement | Secured Debt | Fed Funds Effective Rate Overnight Index Swap Rate                  
Debt                  
Debt instrument, basis spread on variable rate (as a percent) 0.50%                
Revolving Credit Agreement | Secured Debt | Applicable Rate | Minimum                  
Debt                  
Debt instrument, basis spread on variable rate (as a percent) 0.75%                
Revolving Credit Agreement | Secured Debt | Applicable Rate | Maximum                  
Debt                  
Debt instrument, basis spread on variable rate (as a percent) 2.00%                
Secured Revolving Credit Facility | Secured Debt                  
Debt                  
Line of credit facility, maximum borrowing capacity $ 500,000       $ 550,000        
Debt instrument, face amount     $ 385,000 300,000          
Debt instrument, covenant, maximum consolidated secured net leverage ratio, initial period     3.5            
Debt instrument, covenant, maximum consolidated secured net leverage ratio, interim period     3.25            
Debt instrument, covenant, maximum consolidated secured net leverage ratio, after interim period     3            
Debt instrument, covenant, minimum interest coverage ratio     3            
Debt instrument, covenant, maximum consolidated secured net leverage ratio, initial period, consummates acquisition, after elected increase     4            
Debt instrument, covenant, maximum consolidated secured net leverage ratio, interim period, consummates acquisition, after elected increase     3.75            
Debt instrument, covenant, maximum consolidated secured net leverage ratio, after interim period, consummates acquisition, after elected increase     3.5            
Debt instrument, covenant, maximum consolidated secured net leverage ratio, consummates acquisition, number of fiscal quarters | item     4            
Debt instrument, covenant, maximum consolidated secured net leverage ratio, consummates acquisition, minimum consideration     $ 50,000            
Debt issuance costs, net     $ 3,900 $ 2,400          
Secured Revolving Credit Facility, Initial | Secured Debt                  
Debt                  
Debt issuance costs, gross           $ 2,900      
Secured Revolving Credit Facility, Amendment | Secured Debt                  
Debt                  
Debt issuance costs, gross         $ 2,200        
Letter of Credit Subfacility | Secured Debt                  
Debt                  
Debt instrument, face amount $ 10,000                
Debt instrument, maturity date range, start Dec. 31, 2028                
Debt instrument, maturity date range, end, period prior to stated maturity date, existing convertible notes then outstanding, unless case of clause 91 days                
v3.25.1
Debt - Interest Expense (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Secured Debt      
Interest Expense      
Contractual interest expense $ 27,643 $ 14,718  
Amortization of debt issuance costs 785 442  
Other financing costs 50 101  
Total interest expense 28,478 15,261  
Convertible Senior Notes      
Interest Expense      
Contractual interest expense 3,688 4,500 $ 5,745
Amortization of debt issuance costs 1,119 1,618 1,853
Total interest expense $ 4,807 $ 6,118 $ 7,598
v3.25.1
Debt - Convertible Senior Notes - Balances (Details) - Convertible Senior Notes - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Aug. 31, 2019
Principal:      
Less: unamortized debt issuance costs $ (1,012) $ (2,131)  
Net carrying amount 198,988 397,869  
0.75% Convertible Senior Notes due 2024      
Principal:      
Debt instrument, face amount   200,000 $ 200,000
1.50% Convertible Senior Notes due 2026      
Principal:      
Debt instrument, face amount $ 200,000 $ 200,000 $ 200,000
v3.25.1
Debt - Convertible Senior Notes - Future Minimum Payments (Details) - Convertible Senior Notes - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Future minimum payments of Convertible senior notes    
2025 $ 3,000  
2026 201,500  
Total future minimum payments under the convertible senior notes 204,500  
Less: amounts representing interest (4,500)  
Less: unamortized debt issuance costs (1,012) $ (2,131)
Net carrying amount $ 198,988 $ 397,869
v3.25.1
Debt - Convertible Senior Notes Due 2024 and Convertible Senior Notes Due 2026 (Details) - Convertible Senior Notes
1 Months Ended
Aug. 12, 2019
Aug. 07, 2019
USD ($)
$ / shares
Aug. 31, 2019
USD ($)
D
Jun. 30, 2015
USD ($)
Dec. 31, 2024
USD ($)
Jun. 30, 2024
USD ($)
Dec. 31, 2023
USD ($)
Jun. 30, 2022
USD ($)
Sep. 16, 2019
2.25% Convertible Senior Notes due 2022                  
Debt                  
Debt instrument, face amount       $ 335,700,000          
Net proceed received       324,000,000          
Fees and expenses       $ 11,700,000          
Debt redeemed/repurchased     $ 215,000,000         $ 120,700,000  
Stated interest rate (as a percent)       2.25%         2.25%
0.75% Convertible Senior Notes due 2024 and 1.50% Convertible Senior Notes due 2026                  
Debt                  
Net proceed received     391,000,000            
Fees and expenses     9,000,000            
Conversion rate, number of shares to be issued per 74.6687                
Principal amount used for debt instrument conversion ratio   $ 1,000              
Initial conversion price (in dollars per share) | $ / shares   $ 13.39              
0.75% Convertible Senior Notes due 2024                  
Debt                  
Debt instrument, face amount     $ 200,000,000       $ 200,000,000    
Debt redeemed/repurchased           $ 200,000      
Stated interest rate (as a percent) 0.75%   0.75%            
Debt instrument term     5 years            
1.50% Convertible Senior Notes due 2026                  
Debt                  
Debt instrument, face amount     $ 200,000,000   $ 200,000,000   $ 200,000,000    
Stated interest rate (as a percent) 1.50%   1.50%            
Principal amount used for debt instrument conversion ratio     $ 1,000            
Number of consecutive trading days before five business days during the measurement period | D     5            
Repurchase price     100.00%            
Percentage of aggregate principal amount of notes outstanding and payable in case of event of default under the agreement     25.00%            
Debt instrument term     7 years            
1.50% Convertible Senior Notes due 2026 | Calendar quarter commencing after December 31, 2019                  
Debt                  
Number of trading days | D     20            
Consecutive trading days | D     30            
1.50% Convertible Senior Notes due 2026 | Measurement period                  
Debt                  
Number of business days immediately after any five consecutive trading day period during the measurement period | D     5            
1.50% Convertible Senior Notes due 2026 | Minimum | Calendar quarter commencing after December 31, 2019                  
Debt                  
Minimum percentage of stock price     130.00%            
1.50% Convertible Senior Notes due 2026 | Maximum | Measurement period                  
Debt                  
Conversion premium percentage on sale price of common stock     98.00%            
v3.25.1
Debt - Convertible Senior Notes Due 2022, Convertible Senior Notes Due 2024 and Convertible Senior Notes Due 2026 (Details) - Convertible Senior Notes - USD ($)
$ in Millions
1 Months Ended
Aug. 31, 2019
Dec. 31, 2024
0.75% Convertible Senior Notes due 2024 and 1.50% Convertible Senior Notes due 2026    
Debt    
Debt issuance costs incurred $ 9.0  
0.75% Convertible Senior Notes due 2024    
Debt    
Debt instrument term 5 years  
Effective interest rate on liability components (as a percent)   1.20%
1.50% Convertible Senior Notes due 2026    
Debt    
Debt instrument term 7 years  
Effective interest rate on liability components (as a percent)   1.90%
v3.25.1
Debt - Capped Calls with Respect to 2024 Convertible Notes and 2026 Convertible Notes (Details) - Capped Calls with Respect to 2024 Convertible Notes and 2026 Convertible Notes
$ / shares in Units, $ in Millions
1 Months Ended
Aug. 31, 2019
USD ($)
$ / shares
$ / item
shares
Capped Calls  
Payment made to enter into Capped Calls $ 25.2
Strike price (in dollars per share) | $ / shares $ 13.39
Cap price | $ / item 17.05
0.75% Convertible Senior Notes due 2024 and 1.50% Convertible Senior Notes due 2026  
Capped Calls  
Payment made to enter into Capped Calls $ 25.2
Payment made to enter into Capped Calls, premium 25.0
Payment made to enter into Capped Calls, transaction cost $ 0.2
Number of shares covered by capped calls (in shares) | shares 29,867,480
0.75% Convertible Senior Notes due 2024  
Capped Calls  
Number of shares covered by capped calls (in shares) | shares 14,933,740
1.50% Convertible Senior Notes due 2026  
Capped Calls  
Strike price (in dollars per share) | $ / shares $ 13.39
Cap price | $ / item 17.05
Number of shares covered by capped calls (in shares) | shares 14,933,740
v3.25.1
Commitments and Contingencies (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Indemnification Agreement    
Guarantees    
Liabilities recorded $ 0 $ 0
v3.25.1
Stockholders' Equity - Common Stock (Details)
12 Months Ended
Dec. 31, 2024
Vote
Common stock  
Number of voting rights per share 1
Description of the number of voting rights per share Class A Common Stock is entitled to one vote per share.
v3.25.1
Stockholders' Equity - Stock Repurchase Program (Details) - USD ($)
$ / shares in Units, $ in Thousands, shares in Millions
12 Months Ended 37 Months Ended
Dec. 31, 2022
Dec. 31, 2024
May 31, 2021
Stock Repurchase Program      
Stock repurchase program, authorized amount     $ 150,000
Common stock repurchased and retired (in shares) 10.8 13.1  
Common stock repurchased and retired $ 123,386    
Common stock repurchased and retired, weighted-average price (in dollars per share)   $ 11.47  
v3.25.1
Employee Stock Benefit Plans - Summary of Expense Recognized by Share-based Compensation Arrangement (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Employee Stock Benefit Plans      
Share-based compensation expense $ 29,850 $ 59,553 $ 27,048
Employee Stock Option      
Employee Stock Benefit Plans      
Share-based compensation expense   226 1,471
Time-based Restricted Stock Units      
Employee Stock Benefit Plans      
Share-based compensation expense 21,425 19,829 17,643
Performance-based Restricted Stock Units      
Employee Stock Benefit Plans      
Share-based compensation expense 6,422 9,321 5,008
Restricted Stock      
Employee Stock Benefit Plans      
Share-based compensation expense 1,492 1,997 2,439
Employee Stock      
Employee Stock Benefit Plans      
Share-based compensation expense 451 502 412
Stock Awards      
Employee Stock Benefit Plans      
Share-based compensation expense $ 60 130 $ 75
Stock Options and Restricted Stock Units, Acquiree, Accelerated upon Change in Control      
Employee Stock Benefit Plans      
Share-based compensation expense   $ 27,548  
v3.25.1
Employee Stock Benefit Plans - Share-based Compensation Expense - Tabular Disclosure (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Employee Stock Benefit Plans      
Total share-based compensation expense included in operating expenses $ 29,850 $ 59,553 $ 27,048
Income tax benefit 3,414 2,964 1,644
Total share-based compensation expense, net of tax 26,436 56,589 25,404
Research and Development Expense      
Employee Stock Benefit Plans      
Total share-based compensation expense included in operating expenses 7,552 17,448 4,936
Selling, General and Administrative Expenses      
Employee Stock Benefit Plans      
Total share-based compensation expense included in operating expenses $ 22,298 41,194 $ 22,112
Restructuring Charges      
Employee Stock Benefit Plans      
Total share-based compensation expense included in operating expenses   $ 911  
v3.25.1
Employee Stock Benefit Plans - Share-based Compensation Expense - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Jun. 30, 2023
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Employee Stock Benefit Plans        
Share-based compensation expense   $ 29,850 $ 59,553 $ 27,048
Research and Development Expense        
Employee Stock Benefit Plans        
Share-based compensation expense   7,552 17,448 4,936
Selling, General and Administrative Expenses        
Employee Stock Benefit Plans        
Share-based compensation expense   $ 22,298 $ 41,194 $ 22,112
VectivBio Holding AG and its subsidiaries        
Employee Stock Benefit Plans        
Share-based compensation expense $ 27,500      
VectivBio Holding AG and its subsidiaries | Research and Development Expense        
Employee Stock Benefit Plans        
Share-based compensation expense 11,300      
VectivBio Holding AG and its subsidiaries | Selling, General and Administrative Expenses        
Employee Stock Benefit Plans        
Share-based compensation expense $ 16,200      
v3.25.1
Employee Stock Benefit Plans - Stock Benefit Plans (Details) - shares
12 Months Ended
Dec. 31, 2024
Dec. 31, 2010
Stock Benefit Plans    
Shares available for future grant (in shares) 12,606,159  
Employee Stock    
Stock Benefit Plans    
Purchase price as a percentage of fair market value of a share of common stock on the first or last day of an offering period (as a percent)   85.00%
Offering period   6 months
Shares reserved for issuance (in shares)   400,000
Threshold number of additional shares available for future grant (in shares) 1,000,000  
Percentage for the threshold number of additional shares available for future grant, expressed as percentage of common stock outstanding on the last day of the immediately preceding fiscal year (as a percent) 1.00%  
Shares available for future grant (in shares) 4,082,543  
A&R 2019 Equity Plan    
Stock Benefit Plans    
Shares reserved for issuance (in shares) 6,000,000  
Shares available for future grant (in shares) 8,523,616  
2019 Equity Plan    
Stock Benefit Plans    
Shares reserved for issuance (in shares) 10,000,000  
Shares available for future grant (in shares) 0  
2010 Equity Plan    
Stock Benefit Plans    
Shares available for future grant (in shares) 0  
v3.25.1
Employee Stock Benefit Plans - Restricted Stock Awards - General Information (Details)
12 Months Ended
Dec. 31, 2024
Restricted Stock | Share-Based Payment Arrangement, Nonemployee  
Stock Benefit Plans  
Vesting period 3 years
v3.25.1
Employee Stock Benefit Plans - Restricted Stock Awards - Activity (Details) - Restricted Stock - $ / shares
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Number of Shares      
Outstanding at the beginning of the period (in shares) 178,800    
Granted (in shares) 194,488    
Vested and released (in shares) (178,800)    
Outstanding at the end of the period (in shares) 194,488 178,800  
Weighted-Average Grant Date Fair Value      
Outstanding at the beginning of the period (in dollars per share) $ 10.77    
Granted (in dollars per share) 5.7 $ 10.77 $ 11.22
Vested and released (in dollars per share) 10.77    
Outstanding at the end of the period (in dollars per share) $ 5.7 $ 10.77  
v3.25.1
Employee Stock Benefit Plans - Restricted Stock Awards - Additional Information (Details) - Restricted Stock - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Weighted-Average Grant Date Fair Value      
Weighted-average grant date fair value (in dollars per share) $ 5.7 $ 10.77 $ 11.22
Employee Stock Benefit Plans      
Vested in period, total fair value $ 1.0 $ 2.1 $ 2.8
v3.25.1
Employee Stock Benefit Plans - Restricted Stock Units (Details)
12 Months Ended
Dec. 31, 2022
shares
Restricted Stock Units (RSUs)  
Stock Benefit Plans  
Right to number of shares of common stock per RSU (in shares) 1
v3.25.1
Employee Stock Benefit Plans - Time-based RSUs - Vesting (Details) - Time-based Restricted Stock Units
12 Months Ended
Dec. 31, 2024
Minimum  
Stock Benefit Plans  
Vesting period 2 years
Maximum  
Stock Benefit Plans  
Vesting period 4 years
v3.25.1
Employee Stock Benefit Plans - Time-based RSUs - Activity (Details) - Time-based Restricted Stock Units - $ / shares
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Number of Shares      
Outstanding at the beginning of the period (in shares) 5,342,727    
Granted (in shares) 3,105,866    
Vested and released (in shares) (1,886,372)    
Forfeited (in shares) (1,210,714)    
Outstanding at the end of the period (in shares) 5,351,507 5,342,727  
Weighted-Average Grant Date Fair Value      
Outstanding at the beginning of the period (in dollars per share) $ 10.68    
Granted (in dollars per share) 11.53 $ 10.55 $ 11.08
Vested and released (in dollars per share) 10.77    
Forfeited (in dollars per share) 11.79    
Outstanding at the end of the period (in dollars per share) $ 10.89 $ 10.68  
v3.25.1
Employee Stock Benefit Plans - Time-based RSUs - Additional Information (Details) - Time-based Restricted Stock Units - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Weighted-Average Grant Date Fair Value      
Weighted-average grant date fair value (in dollars per share) $ 11.53 $ 10.55 $ 11.08
Employee Stock Benefit Plans      
Vested in period, total fair value $ 22.0 $ 18.3 $ 14.8
v3.25.1
Employee Stock Benefit Plans - Performance-based RSUs - Vesting (Details)
12 Months Ended
Dec. 31, 2024
Performance-based Restricted Stock Units  
Stock Benefit Plans  
Vesting period 3 years
v3.25.1
Employee Stock Benefit Plans - Performance-based RSUs - Assumptions (Details) - $ / shares
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Performance-based Restricted Stock Units, Relative Total Shareholder Return      
Weighted-average assumptions used to estimate fair value      
Fair value of common stock (in dollars per share) $ 12.41 $ 11.39 $ 11.13
Expected volatility (as a percent) 38.00% 37.00% 41.70%
Expected term 3 years 3 years 2 years 9 months 18 days
Risk-free interest rate (as a percent) 4.20% 4.70% 1.60%
Expected dividend yield (as a percent) 0.00% 0.00% 0.00%
Performance-based Restricted Stock Units, Absolute Total Shareholder Return      
Weighted-average assumptions used to estimate fair value      
Fair value of common stock (in dollars per share) $ 12.41 $ 10.74  
Expected volatility (as a percent) 38.00% 37.00%  
Expected term 3 years 3 years  
Risk-free interest rate (as a percent) 4.20% 4.70%  
Expected dividend yield (as a percent) 0.00% 0.00%  
v3.25.1
Employee Stock Benefit Plans - Performance-based RSUs - Activity (Details) - Performance-based Restricted Stock Units - $ / shares
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Number of Shares      
Outstanding at the beginning of the period (in shares) 1,653,268    
Granted (in shares) 540,636    
Vested and released (in shares) (802,800)    
Forfeited (in shares) (282,598)    
Outstanding at the end of the period (in shares) 1,108,506 1,653,268  
Weighted-Average Grant Date Fair Value      
Outstanding at the beginning of the period (in dollars per share) $ 14.55    
Granted (in dollars per share) 14.91 $ 14.09 $ 14.3
Vested and released (in dollars per share) 12.84    
Forfeited (in dollars per share) 17.36    
Outstanding at the end of the period (in dollars per share) $ 13.91 $ 14.55  
v3.25.1
Employee Stock Benefit Plans - Performance-based RSUs - Additional Information (Details) - Performance-based Restricted Stock Units - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Employee Stock Benefit Plans      
Vested in period, total fair value $ 9.8 $ 0.8 $ 1.7
Weighted-Average Grant Date Fair Value      
Weighted-average grant date fair value (in dollars per share) $ 14.91 $ 14.09 $ 14.3
v3.25.1
Employee Stock Benefit Plans - Stock Options - General Information (Details)
12 Months Ended
Dec. 31, 2024
Stock Benefit Plans  
Expiration period 10 years
Employee Stock Option  
Stock Benefit Plans  
Vesting period 4 years
v3.25.1
Employee Stock Benefit Plans - Stock Options - Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Number of Shares    
Outstanding at the beginning of the period (in shares) 5,836,306  
Exercised (in shares) (825,416)  
Cancelled (in shares) (470,626)  
Outstanding at the end of the period (in shares) 4,540,264 5,836,306
Weighted-Average Exercise Price    
Outstanding at the beginning of the period (in dollars per share) $ 12.36  
Exercised (in dollars per share) 12.19  
Cancelled (in dollars per share) 12.51  
Outstanding at the end of the period (in dollars per share) $ 12.37 $ 12.36
Vested or expected to vest    
Number of Shares (in shares) 4,540,264  
Weighted-Average Exercise Price (in dollars per share) $ 12.37  
Weighted Average Contractual Life 1 year 11 months 19 days  
Stock options    
Weighted Average Contractual Life - Outstanding 1 year 11 months 19 days 2 years 6 months 21 days
Aggregate Intrinsic Value - Outstanding   $ 2,920
Number of Shares - Exercisable (in shares) 4,540,264  
Weighted-Average Exercise Price - Exercisable (in dollars per share) $ 12.37  
Weighted Average Contractual Life - Exercisable 1 year 11 months 19 days  
v3.25.1
Employee Stock Benefit Plans - Stock Options - Total Intrinsic Value (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Stock options      
Total intrinsic value of options exercised $ 2.0 $ 0.2 $ 0.9
v3.25.1
Employee Stock Benefit Plans - Unrecognized Share-based Compensation (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2024
USD ($)
Restricted Stock  
Unrecognized share-based compensation  
Unrecognized expense, net of estimated forfeitures, other than options $ 513
Weighted-average remaining recognition period 5 months 15 days
Time-based Restricted Stock Units  
Unrecognized share-based compensation  
Unrecognized expense, net of estimated forfeitures, other than options $ 32,147
Weighted-average remaining recognition period 2 years 3 months 21 days
Performance-based Restricted Stock Units  
Unrecognized share-based compensation  
Unrecognized expense, net of estimated forfeitures, other than options $ 3,015
Weighted-average remaining recognition period 1 year 9 months 25 days
v3.25.1
Income Taxes - Components of Income before Income Taxes (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Income before income taxes      
United States $ 167,091 $ 226,532 $ 252,422
Foreign (101,893) (1,174,601)  
Income (loss) before income taxes $ 65,198 $ (948,069) $ 252,422
v3.25.1
Income Taxes - Provision for (Benefit from) Income Taxes - Tabular Disclosure (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Current taxes:      
State $ (4,487) $ 10,587 $ 11,618
Foreign 754 346  
Total current taxes (3,733) 10,933 11,618
Deferred taxes:      
Federal 32,584 47,864 52,191
State 35,467 24,693 13,548
Total deferred taxes 68,051 72,557 65,739
Income tax expense $ 64,318 $ 83,490 $ 77,357
v3.25.1
Income Taxes - Provision for (Benefit from) Income Taxes - Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Income Taxes      
Income tax (benefit) expense $ 64,318 $ 83,490 $ 77,357
Income tax (benefit) expense, non-cash expense 57,800 74,100 73,400
Income tax (benefit) expense, cash expense 6,500 9,400 4,000
Deferred Income Tax Expense (Benefit)      
Deferred taxes 68,051 72,557 65,739
Current taxes:      
State $ (4,487) $ 10,587 $ 11,618
v3.25.1
Income Taxes - Federal Statutory Rate (Details)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Effective Income Tax Rate Reconciliation, Percent      
Federal statutory rate (as a percent) 21.00% 21.00% 21.00%
v3.25.1
Income Taxes - Reconciliation of Income Taxes (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Reconciliation of income taxes      
Income tax expense (benefit) using U.S. federal statutory rate $ 13,692 $ (199,094) $ 53,009
Acquisition accounting for VectivBio Acquisition   139,301  
Foreign tax rate differential 8,111 93,394  
Disallowed transaction costs   3,424  
Permanent differences 788 704 (290)
State income taxes, net of federal benefit 10,992 14,024 16,160
Executive compensation - Section 162(m) 2,683 3,979 2,654
Excess tax benefits 749 1,903 3,613
Fair market valuation of Note Hedge Warrants and Convertible Note Hedges   (5) (50)
Tax credits (1,244) (79) (252)
Expiring net operating losses and tax credits 1,187 933 1,087
Effect of change in state tax rate on deferred tax assets and deferred tax liabilities 1,538 2,134 2,581
Change in the valuation allowance 25,564 22,492 (1,155)
Other 258 380  
Income tax expense $ 64,318 $ 83,490 $ 77,357
v3.25.1
Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Deferred tax assets:    
Net operating loss carryforwards $ 146,978 $ 105,401
Tax credit carryforwards 58,494 58,437
Capitalized research and development 22,350 18,267
Share-based compensation 9,508 12,323
Basis difference on Convertible Notes 714 1,613
Basis difference on collaboration agreement for North America with AbbVie 3,585 80,638
Accruals and reserves 3,804 7,149
Intangible assets 3,411 10,968
Operating lease liability 3,892 4,774
Other 1,452 1,810
Total deferred tax assets 254,188 301,380
Deferred tax liabilities:    
Fixed assets (898) (1,101)
Operating lease right-of-use assets (2,777) (2,306)
Total deferred tax liabilities (3,675) (3,407)
Net deferred tax assets 250,513 297,973
Valuation allowance (106,279) (85,649)
Net deferred tax asset $ 144,234 $ 212,324
v3.25.1
Income Taxes - Valuation Allowance (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Income Taxes    
Valuation allowance $ 106,279 $ 85,649
Net deferred tax assets 250,513 297,973
(Decrease) increase in valuation allowance $ 20,600 $ 82,600
v3.25.1
Income Taxes - Acquisitions (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Jun. 30, 2023
Dec. 31, 2023
Uncertain tax positions    
Uncertain tax position, increases for acquisitions   $ 11,372
VectivBio Holding AG and its subsidiaries    
Uncertain tax positions    
Uncertain tax position, increases for acquisitions $ 11,000  
v3.25.1
Income Taxes - Net Operating Loss Carryforwards (Details)
$ in Millions
Dec. 31, 2024
USD ($)
Domestic Tax Jurisdiction  
Net operating loss carryforwards  
Net operating loss carryforwards $ 260.5
Net operating loss carryforwards, subject to expiration 130.9
Net operating loss carryforwards, indefinite 129.6
State  
Net operating loss carryforwards  
Net operating loss carryforwards 288.0
Foreign Tax Jurisdiction  
Net operating loss carryforwards  
Net operating loss carryforwards $ 617.8
v3.25.1
Income Taxes - Tax Credit Carryforwards (Details)
$ in Millions
Dec. 31, 2024
USD ($)
Tax credit carryforward  
Tax credit carryforward $ 62.9
v3.25.1
Income Taxes - Unrecognized Income Tax Benefits - Tabular Disclosure (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Unrecognized income tax benefits      
Balance at the beginning of the period $ 98,218 $ 102,625 $ 84,606
Increases based on tax positions related to the current period 4,093 85,446 101,225
Increases for tax positions assumed in VectivBio Acquisition   11,372  
Decreases for tax positions in prior periods (90,726) (101,225) (83,206)
Balance at the end of the period $ 11,585 $ 98,218 $ 102,625
v3.25.1
Income Taxes - Unrecognized Income Tax Benefits - Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Unrecognized tax benefits        
Unrecognized tax benefits $ 11,585 $ 98,218 $ 102,625 $ 84,606
Amount of unrecognized tax benefits that, if recognized, would affect effective tax rate 7,500      
Reserves for uncertain tax positions recorded in other liabilities 11,800 23,000    
Interest and penalties related to uncertain tax positions 800 1,000    
Unrecognized tax benefits        
Accrued interest and penalties related to uncertain tax positions $ 5,100 $ 5,200    
v3.25.1
Retirement Plans - Defined Contribution Retirement Plans (Details) - USD ($)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Defined Contribution Plan      
Compensation cost $ 2,400,000 $ 2,200,000 $ 2,200,000
Minimum      
Defined Contribution Plan      
Employee contribution percentage per calendar year (as a percent) 1.00%    
Maximum      
Defined Contribution Plan      
Employee contribution percentage per calendar year (as a percent) 100.00%    
Ironwood Pharmaceuticals, Inc 401(k) Savings Plan, Matching Contributions, 100 Percent on First 3 Percent and 50 Percent on Next 3 Percent, 100 Percent on First 3 Percent      
Defined Contribution Plan      
Matching contribution, percent of match (as a percent) 100.00%    
Matching contribution, percent of employees' gross pay (as a percent) 3.00%    
Ironwood Pharmaceuticals, Inc 401(k) Savings Plan, Matching Contributions, 100 Percent on First 3 Percent and 50 Percent on Next 3 Percent, 50 Percent on Next 3 Percent      
Defined Contribution Plan      
Matching contribution, percent of match (as a percent) 50.00%    
Matching contribution, percent of employees' gross pay (as a percent) 3.00%    
Ironwood Pharmaceuticals, Inc 401(k) Savings Plan, Matching Contributions, 75 Percent on First $10,000, up to $7,500      
Defined Contribution Plan      
Matching contribution, percentage of employee contribution (as a percent) 75.00%    
Matching contribution, annual employee eligible contribution limit, amount $ 10,000    
v3.25.1
Retirement Plans - Defined Benefit Retirement Plans - General Information (Details)
12 Months Ended
Dec. 31, 2023
Jun. 29, 2023
Dec. 31, 2024
General information      
Defined Benefit Plan, Type us-gaap:PensionPlansDefinedBenefitMember us-gaap:PensionPlansDefinedBenefitMember us-gaap:PensionPlansDefinedBenefitMember
Defined Benefit Plan, Sponsor Location country:BE, country:CH country:BE, country:CH country:BE, country:CH
v3.25.1
Retirement Plans - Defined Benefit Retirement Plans - Net Periodic Benefit Cost (Credit) (Details) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Dec. 31, 2023
Dec. 31, 2024
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)    
Current service cost $ 879 $ 1,032
Amortization prior service cost 11 (57)
Amortization of unrecognized actuarial gains/ (losses) 124 1,641
Interest cost 210 269
Expected return on plan assets (235) (416)
Curtailment and other 1,402 (2,086)
Administration costs 9 9
Total $ 2,400 $ 392
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income Selling, general and administrative, Restructuring Selling, general and administrative, Restructuring
v3.25.1
Retirement Plans - Defined Benefit Retirement Plans - Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Dec. 31, 2023
Dec. 31, 2024
Dec. 31, 2023
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent      
Amortization prior service cost $ (11) $ 57  
Prior service (cost)/credit arising during financial year 106 (261)  
Amortization of unrecognized actuarial gains/(losses) (124) (1,641)  
Actuarial (gains)/losses arising from plan experience 70 490  
Actuarial (gains)/losses arising from demographic assumption 989    
Actuarial (gains)/losses arising from financial assumptions   906  
Return on plan assets excluding interest income (92) (604)  
Expense (income) recognized in other comprehensive income $ 938 $ (1,053) $ 938
v3.25.1
Retirement Plans - Defined Benefit Retirement Plans - Funded (Unfunded) Status (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Jun. 28, 2023
Funded (unfunded) status      
Present value of defined benefit obligation $ (18,462) $ (37,547) $ (18,865)
Fair value of plan assets 15,682 32,992 $ 16,693
Net liability arising from defined benefit obligation $ (2,780) $ (4,555)  
v3.25.1
Retirement Plans - Defined Benefit Retirement Plans - Change in Defined Benefit Obligation (Details) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Dec. 31, 2023
Dec. 31, 2024
Defined Benefit Plan, Change in Benefit Obligation    
Defined benefit obligation, beginning balance $ (18,865) $ (37,547)
Current service cost (879) (1,032)
Contributions paid by employees (1,214) (837)
Interest expense on defined benefit obligation (210) (269)
Prior service (cost)/credit arising during financial year (106) 261
Curtailment (1,402) 2,086
Remeasurement (gain)/loss on defined benefit obligation (1,059) (1,396)
Benefits (paid)/deposited (11,813) 18,144
Foreign currency exchange (gains)/loss (1,999) 2,128
Defined benefit obligation, ending balance $ (37,547) $ (18,462)
v3.25.1
Retirement Plans - Defined Benefit Retirement Plans - Change in Fair Value of Plan Assets (Details) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Dec. 31, 2023
Dec. 31, 2024
Change in Fair Value of Plan Assets    
Fair value of plan assets, beginning balance $ 16,693 $ 32,992
Return on plan assets excluding interest income 235 416
Contributions paid by employer 1,215 837
Contributions paid by employees 1,214 837
Benefits (paid)/deposited 11,813 (18,144)
Actuarial gain/(loss) on plan assets 92 602
Administration expense (9) (9)
Foreign currency exchange gains/(losses) 1,739 (1,849)
Fair value of plan assets, ending balance $ 32,992 $ 15,682
v3.25.1
Retirement Plans - Defined Benefit Retirement Plans - Allocation of Plan Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Jun. 28, 2023
Allocation of Plan Assets, Amount      
Plan assets $ 15,682 $ 32,992 $ 16,693
Allocation of Plan Assets, Percentage      
Allocation of plan assets (as a percent) 100.00%    
Fixed Income      
Allocation of Plan Assets, Amount      
Plan assets $ 9,566    
Allocation of Plan Assets, Percentage      
Allocation of plan assets (as a percent) 61.00%    
Equities      
Allocation of Plan Assets, Amount      
Plan assets $ 3,921    
Allocation of Plan Assets, Percentage      
Allocation of plan assets (as a percent) 25.00%    
Real Estate      
Allocation of Plan Assets, Amount      
Plan assets $ 1,568    
Allocation of Plan Assets, Percentage      
Allocation of plan assets (as a percent) 10.00%    
Other      
Allocation of Plan Assets, Amount      
Plan assets $ 627    
Allocation of Plan Assets, Percentage      
Allocation of plan assets (as a percent) 4.00%    
Switzerland Basic Plan      
Allocation of Plan Assets, Amount      
Plan assets   $ 20,239  
Allocation of Plan Assets, Percentage      
Allocation of plan assets (as a percent)   100.00%  
Switzerland Basic Plan | Fixed Income      
Allocation of Plan Assets, Amount      
Plan assets   $ 12,143  
Allocation of Plan Assets, Percentage      
Allocation of plan assets (as a percent)   60.00%  
Switzerland Basic Plan | Equities      
Allocation of Plan Assets, Amount      
Plan assets   $ 5,060  
Allocation of Plan Assets, Percentage      
Allocation of plan assets (as a percent)   25.00%  
Switzerland Basic Plan | Real Estate      
Allocation of Plan Assets, Amount      
Plan assets   $ 2,024  
Allocation of Plan Assets, Percentage      
Allocation of plan assets (as a percent)   10.00%  
Switzerland Basic Plan | Other      
Allocation of Plan Assets, Amount      
Plan assets   $ 1,012  
Allocation of Plan Assets, Percentage      
Allocation of plan assets (as a percent)   5.00%  
v3.25.1
Retirement Plans - Defined Benefit Retirement Plans - Fair Value of Plan Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Jun. 28, 2023
Allocation of Plan Assets, Amount      
Plan assets $ 15,682 $ 32,992 $ 16,693
Fair Value, Inputs, Level 3      
Allocation of Plan Assets, Amount      
Plan assets $ 1,900    
Switzerland Basic Plan      
Allocation of Plan Assets, Amount      
Plan assets   20,239  
Switzerland Basic Plan | Fair Value, Inputs, Level 3      
Allocation of Plan Assets, Amount      
Plan assets   $ 2,600  
v3.25.1
Retirement Plans - Defined Benefit Retirement Plans - Assumptions (Details)
6 Months Ended 12 Months Ended
Dec. 31, 2023
Dec. 31, 2024
Principal Assumptions    
Discount rate (as a percent) 1.50% 1.00%
Expected return on assets (as a percent) 2.70% 2.50%
Expected rate of salary increase (as a percent) 2.25% 1.65%
v3.25.1
Retirement Plans - Defined Benefit Retirement Plans - Future Minimum Payments (Details)
$ in Thousands
Dec. 31, 2024
USD ($)
Defined Benefit Plan, Expected Future Benefit Payment  
2025 $ 6,502
2026 528
2027 1,055
2028 922
2029 and thereafter 4,276
Total $ 13,283
v3.25.1
Workforce Reduction and Restructuring - General Information (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Jan. 31, 2025
Apr. 30, 2023
Dec. 31, 2024
Dec. 31, 2023
Restructuring Expenses        
Restructuring expenses     $ 2,612 $ 17,443
Restructuring Charges, Statement of Income or Comprehensive Income     Restructuring Restructuring
Reduction in Headquarter-based Workforce, April 2023        
Workforce Reduction        
Restructuring and related cost, number of positions eliminated, period percent (as a percent)   10.00%    
Restructuring Expenses        
Restructuring expenses       $ 2,540
Restructuring expenses and adjustments, primarily comprised of employee severance, benefits and related costs       3,400
VectivBio Acquisition-related Workforce Reductions, June 2023        
Restructuring Expenses        
Restructuring expenses     $ 2,612 $ 14,903
Restructuring Charges, Statement of Income or Comprehensive Income     Restructuring Restructuring
Reduction in Company-wide Workforce, January 2025 | Subsequent Event        
Workforce Reduction        
Restructuring and related cost, number of positions eliminated, period percent (as a percent) 50.00%      
Reduction in Company-wide Workforce, January 2025 | Minimum | Subsequent Event        
Restructuring and Related Cost, Expected Cost        
Restructuring and related cost, expected cost $ 20,000      
Reduction in Company-wide Workforce, January 2025 | Maximum | Subsequent Event        
Restructuring and Related Cost, Expected Cost        
Restructuring and related cost, expected cost $ 25,000      
v3.25.1
Workforce Reduction and Restructuring - Tabular Disclosure (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Workforce Reduction    
Balance at beginning of period $ 8,372  
Charges 2,612 $ 17,443
Amounts paid (10,260) (9,413)
Adjustments (109) 342
Balance at end of period $ 615 $ 8,372
Restructuring Charges, Statement of Income or Comprehensive Income Restructuring Restructuring
Reduction in Headquarter-based Workforce, April 2023    
Workforce Reduction    
Balance at beginning of period $ 270  
Charges   $ 2,540
Amounts paid (270) (2,232)
Adjustments   (38)
Balance at end of period 0 270
VectivBio Acquisition-related Workforce Reductions, June 2023    
Workforce Reduction    
Balance at beginning of period 8,102  
Charges 2,612 14,903
Amounts paid (9,990) (7,181)
Adjustments (109) 380
Balance at end of period $ 615 $ 8,102
Restructuring Charges, Statement of Income or Comprehensive Income Restructuring Restructuring
v3.25.1
Segment Reporting (Details) - segment
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Segment Reporting      
Number of reportable segments 1 1 1
Segment Reporting, CODM, Individual Title and Position or Group Name srt:ChiefExecutiveOfficerMember, srt:ChiefFinancialOfficerMember srt:ChiefExecutiveOfficerMember, srt:ChiefFinancialOfficerMember srt:ChiefExecutiveOfficerMember, srt:ChiefFinancialOfficerMember
v3.25.1
Selected Quarterly Financial Data (Unaudited) (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2024
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Selected Quarterly Financial Data                      
Total revenues $ 90,545 $ 91,592 $ 94,396 $ 74,877 $ 117,553 $ 113,739 $ 107,382 $ 104,061 $ 351,410 $ 442,735 $ 410,596
Total cost and expenses 59,054 65,956 69,419 63,857 79,964 73,716 1,190,521 43,964 258,286 1,388,165 160,259
Other income (expense), net (7,496) (8,267) (6,101) (6,062) (7,229) (8,091) 6,917 5,764 (27,926) (2,639) 2,085
Net income (loss) 2,256 3,646 (860) (4,162) (1,745) 13,950 (1,089,478) 45,714 880 (1,031,559) 175,065
Net income (loss) attributable to Ironwood Pharmaceuticals, Inc.         (1,087) 15,321 (1,062,187) 45,714 880 (1,002,239) 175,065
Comprehensive income (loss) attributable to Ironwood Pharmaceuticals, Inc. $ 5,231 $ 2,064 $ (408) $ (2,053) $ (3,303) $ 14,569 $ (1,062,187) $ 45,714 $ 4,834 $ (1,005,207) $ 175,065
Net income (loss) per share - basic (in dollars per share) $ 0.01 $ 0.02 $ (0.01) $ (0.03) $ (0.01) $ 0.1 $ (6.84) $ 0.3 $ 0.01 $ (6.45) $ 1.13
Net income (loss) per share - diluted (in dollars per share) $ 0.01 $ 0.02 $ (0.01) $ (0.03) $ (0.01) $ 0.09 $ (6.84) $ 0.25 $ 0.01 $ (6.45) $ 0.96