NEUROPACE INC, 10-Q filed on 5/12/2026
Quarterly Report
v3.26.1
Cover - shares
3 Months Ended
Mar. 31, 2026
May 08, 2026
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2026  
Document Transition Report false  
Entity File Number 001-40337  
Entity Registrant Name NEUROPACE, INC.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 22-3550230  
Entity Address, Address Line One 455 N. Bernardo Avenue  
Entity Address, City or Town Mountain View  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 94043  
City Area Code 650  
Local Phone Number 237-2700  
Title of 12(b) Security Common Stock, $0.001 par value per share  
Trading Symbol NPCE  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   34,093,745
Amendment Flag false  
Entity Central Index Key 0001528287  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q1  
v3.26.1
Condensed Balance Sheets (unaudited) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Current assets:    
Cash and cash equivalents $ 14,779 $ 21,692
Short-term investments 39,202 39,366
Accounts receivable 14,788 14,681
Inventory 16,694 16,896
Prepaid expenses and other current assets 1,515 1,438
Total current assets 86,978 94,073
Property and equipment, net 1,283 1,125
Operating lease right-of-use asset 9,679 10,132
Restricted cash 852 122
Other assets 106 113
Total assets 98,898 105,565
Current liabilities:    
Accounts payable 4,512 2,217
Accrued liabilities 9,344 13,339
Operating lease liability 2,186 2,117
Deferred revenue 126 141
Total current liabilities 16,168 17,814
Long-term debt 59,021 58,884
Operating lease liability, net of current portion 9,255 9,836
Total liabilities 84,444 86,534
Commitments and contingencies (Note 5)
Stockholders’ equity:    
Preferred stock, $0.001 par value, 10,000,000 shares authorized and no shares issued and outstanding as of March 31, 2026 and December 31, 2025 0 0
Common stock, $0.001 par value, 200,000,000 shares authorized as of March 31, 2026 and December 31, 2025; 33,909,408 and 33,574,759 shares issued and outstanding as of March 31, 2026 and December 31, 2025, respectively 34 34
Additional paid-in capital 573,524 571,412
Accumulated deficit (559,104) (552,415)
Total stockholders’ equity 14,454 19,031
Total liabilities and stockholders’ equity $ 98,898 $ 105,565
v3.26.1
Condensed Balance Sheets (unaudited) (Parenthetical) - $ / shares
Mar. 31, 2026
Dec. 31, 2025
Statement of Financial Position [Abstract]    
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred stock shares authorized (in shares) 10,000,000 10,000,000
Preferred stock issued (in shares) 0 0
Preferred stock outstanding (in shares) 0 0
Common stock par value (in dollars per share) $ 0.001 $ 0.001
Common stock authorized (in shares) 200,000,000 200,000,000
Common stock issued (in shares) 33,909,408 33,574,759
Common stock outstanding (in shares) 33,909,408 33,574,759
v3.26.1
Condensed Statements of Operations and Comprehensive Loss (unaudited) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Income Statement [Abstract]    
Revenue $ 22,068 $ 22,524
Cost of goods sold 4,020 5,182
Gross profit 18,048 17,342
Operating expenses:    
Sales and marketing 11,583 11,003
Research and development 7,189 7,440
General and administrative 4,844 4,046
Total operating expenses 23,616 22,489
Loss from operations (5,568) (5,147)
Interest income 565 793
Interest expense (1,521) (2,153)
Other income (expense), net (165) (82)
Net loss and comprehensive loss $ (6,689) $ (6,589)
Net loss per share attributable to common stockholders, basic (in dollars per share) $ (0.20) $ (0.21)
Net loss per share attributable to common stockholders, diluted(in dollars per share) $ (0.20) $ (0.21)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic (in shares) 33,716,813 31,480,911
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted (in shares) 33,716,813 31,480,911
v3.26.1
Condensed Statements of Stockholders’ Equity (unaudited) - USD ($)
$ in Thousands
Total
Follow-on Offering
At-the-Market Equity Offering
Common Stock
Common Stock
Follow-on Offering
Common Stock
At-the-Market Equity Offering
Additional Paid-In Capital
Additional Paid-In Capital
Follow-on Offering
Additional Paid-In Capital
At-the-Market Equity Offering
Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2024       30,145,039            
Beginning balance at Dec. 31, 2024 $ 8,013     $ 30     $ 538,933     $ (530,950)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                    
Net loss (6,589)                 (6,589)
Issuance of common stock pursuant to stock option exercises (in shares)       101,301            
Issuance of common stock pursuant to stock option exercises 385     $ 1     384      
Issuance of common stock upon vesting of restricted stock units (in shares)       299,535            
Issuance of common stock upon vesting of restricted stock units 0                  
Shares withheld for taxes (in shares)       (17,380)            
Shares withheld for taxes (228)           (228)      
Issuance of shares (in shares)         7,475,000 18,590        
Issuance of shares   $ 69,384 $ 224   $ 7     $ 69,377 $ 224  
Repurchase of common stock from KCK Ltd. (in shares)       (5,270,845)            
Repurchase of common stock from KCK Ltd. (49,546)     $ (5)     (49,541)      
Stock-based compensation 2,626           2,626      
Ending balance (in shares) at Mar. 31, 2025       32,751,240            
Ending balance at Mar. 31, 2025 $ 24,269     $ 33     561,775     (537,539)
Beginning balance (in shares) at Dec. 31, 2025 33,574,759     33,574,759            
Beginning balance at Dec. 31, 2025 $ 19,031     $ 34     571,412     (552,415)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                    
Net loss $ (6,689)                 (6,689)
Issuance of common stock pursuant to stock option exercises (in shares) 41,603     41,603            
Issuance of common stock pursuant to stock option exercises $ 10           10      
Issuance of common stock upon vesting of restricted stock units (in shares)       305,646            
Issuance of common stock upon vesting of restricted stock units 0                  
Shares withheld for taxes (in shares)       (12,600)            
Shares withheld for taxes (176)           (176)      
Stock-based compensation $ 2,278           2,278      
Ending balance (in shares) at Mar. 31, 2026 33,909,408     33,909,408            
Ending balance at Mar. 31, 2026 $ 14,454     $ 34     $ 573,524     $ (559,104)
v3.26.1
Condensed Statements of Stockholders’ Equity (unaudited) (Parenthetical)
$ in Thousands
3 Months Ended
Mar. 31, 2025
USD ($)
Follow-on Offering  
Statement of Financial Position [Abstract]  
Issuance costs $ 5,365
Issuance costs 5,365
At-the-Market Equity Offering  
Statement of Financial Position [Abstract]  
Issuance costs 15
Issuance costs $ 15
v3.26.1
Condensed Statements of Cash Flows (unaudited) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Cash flows from operating activities    
Net loss $ (6,689) $ (6,589)
Adjustments to reconcile net loss to net cash used in operating activities:    
Stock-based compensation expense 2,278 2,626
Depreciation 60 49
Amortization of debt discount and issuance costs 68 49
Non-cash interest expense 77 213
Amortization of right-of-use asset 453 413
Unrealized loss on short-term investments 165 82
Inventory write-downs 76 44
Loss on disposal of property and equipment 0 2
Changes in operating assets and liabilities:    
Accounts receivable (108) (2,585)
Inventory 125 (243)
Prepaid expenses and other assets (77) 150
Accounts payable 2,195 966
Accrued liabilities (3,995) (2,333)
Deferred revenue (15) 124
Operating lease liabilities (513) (450)
Net cash used in operating activities (5,900) (7,482)
Cash flows from investing activities    
Acquisition of property and equipment (117) (37)
Net cash used in investing activities (117) (37)
Cash flows from financing activities    
Repurchase of common stock from KCK Ltd. 0 (49,546)
Proceeds from issuance of common stock under employee plans 10 385
Taxes withheld and paid related to net share settlement of equity awards (176) (228)
Net cash (used in) provided by financing activities (166) 21,108
Net increase (decrease) in cash and cash equivalents (6,183) 13,589
Cash, cash equivalents and restricted cash at the Beginning of the Period 21,814 13,552
Cash, cash equivalents and restricted cash at the End of the Period 15,631 27,141
Reconciliation of cash, cash equivalents and restricted cash to balance sheets:    
Cash and cash equivalents 14,779 27,019
Restricted cash 852 122
Cash, cash equivalents and restricted cash in balance sheets 15,631 27,141
Supplemental disclosure of cash flow information:    
Cash paid for interest 1,388 1,890
Supplemental disclosures of non-cash investing and financing information:    
Follow-on offering costs included in accounts payable and accrued liabilities 0 611
Deferred offering costs offset against additional paid-in capital 0 277
Purchase of property and equipment included in accounts payable 114 141
Follow-on Offering    
Cash flows from financing activities    
Proceeds from issuance of common stock in follow-on offering, net of underwriting discounts and commissions 0 70,265
At-the-Market Equity Offering    
Cash flows from financing activities    
Proceeds from At-the-Market offering, net of sales commission $ 0 $ 232
v3.26.1
The Company
3 Months Ended
Mar. 31, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
The Company The Company
NeuroPace, Inc., or the Company, was incorporated in the state of Delaware on November 19, 1997. The Company is a medical device company that has developed the RNS System, the only commercially available brain-responsive neuromodulation system designed for treating drug-resistant focal epilepsy by delivering personalized, real-time treatment at the seizure source. The Company began commercializing its products in the United States in 2014.
At-the-Market Equity Offering
In November 2022, the Company filed a shelf registration statement on Form S-3 with the Securities Exchange Commission, or the SEC, for up to $150.0 million of securities, including up to $50.0 million under an at-the-market, or ATM, equity program pursuant to a sales agreement with Leerink Partners LLC, or Leerink (formerly SVB Securities LLC). The Company agreed to pay Leerink commissions of up to 3.0% of the gross proceeds. The Company’s common stock were issued at prevailing market prices. In January 2025, the Company sold 18,590 shares under the ATM program for net proceeds of $0.2 million. In February 2025, the Company terminated the Sales Agreement and the ATM program. At termination, $38.3 million remained available under the ATM program.
Follow-On Offering
In February 2025, the Company completed a follow-on offering of 7,475,000 shares of common stock, including 975,000 shares issued upon exercise of the underwriters’ option, at $10.00 per share. The net proceeds were $69.7 million after underwriting discounts, commissions and offering expenses. The Company used $49.5 million of the net proceeds to repurchase all of the 5,270,845 shares held by its significant stockholder (a related party), KCK Ltd., at $9.40 per share. The repurchased shares became authorized but unissued shares.
Liquidity and Capital Resources
The Company has incurred operating losses and negative cash flows from operations since its inception and had an accumulated deficit of $559.1 million as of March 31, 2026. For the three months ended March 31, 2026 and 2025, the Company used $5.9 million and $7.5 million of cash in its operating activities, respectively. As of March 31, 2026, the Company had cash, cash equivalents and short-term investments of $54.0 million. Historically, the Company has funded its operations principally through the sales of its products, issuance of equity securities and debt financing.
The Company’s condensed financial statements have been prepared on the basis of the Company continuing as a going concern for the next 12 months. Management believes that the Company’s cash, cash equivalents and short-term investments will allow the Company to continue its planned operations for at least the next 12 months from the date of the issuance of these unaudited interim condensed financial statements.
The MidCap Credit Agreement (see Note 6) financial covenants require the Company to maintain an Applicable Liquidity Threshold no less than (a) $60.0 million until June 30, 2027, and (b) $40.0 million thereafter; or provided the Company earns at least $90.0 million net revenue from the RNS System in 2026, liquidity shall be no less than $35.0 million thereafter. If liquidity falls below the Applicable Liquidity Threshold, the Company must satisfy minimum annual trailing net RNS System revenue, tested quarterly, starting from $69.2 million over a trailing 12-month period ending June 30, 2025, and increasing to $87.3 million for the trailing 12-month period ending March 31, 2030. The Company’s trailing 12-month net RNS System revenue was $85.2 million as of March 31, 2026, exceeding the $71.9 million minimum per the MidCap Credit Agreement. The MidCap Credit Agreement also requires the Company to maintain a Minimum Liquidity balance of $25.0 million. Liquidity is defined as cash and cash equivalents, short-term investments, and following the initial borrowing under the Revolver (see Note 6), the available Revolver balance. Failure to comply with these covenants could result in acceleration of the debt and requires the Company to obtain additional capital and may raise doubt about the Company’s ability to continue as a going concern. As of March 31, 2026, the Company was in compliance with all covenants of the MidCap Credit Agreement.
v3.26.1
Summary of Significant Accounting Policies
3 Months Ended
Mar. 31, 2026
Accounting Policies [Abstract]  
Summary of Significant Accounting Policies Summary of Significant Accounting Policies
Basis of Presentation
The unaudited interim condensed financial statements have been prepared in conformity with generally accepted accounting principles in the United States, or GAAP.
Unaudited Interim Financial Information
The condensed balance sheet as of December 31, 2025 was derived from the Company’s audited financial statements, but does not include all disclosures required by GAAP. The accompanying unaudited condensed financial statements as of March 31, 2026 and for the three months ended March 31, 2026 and 2025, have been prepared by the Company, pursuant to the rules and regulations of the SEC for interim financial statements. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Accordingly, these financial statements should be read in conjunction with the audited financial statements as of and for the year ended December 31, 2025 and notes thereto, which are included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2025 filed with the SEC on March 3, 2026. In the opinion of management, all normal recurring adjustments necessary for a fair presentation have been included. The results for the three months ended March 31, 2026 are not necessarily indicative of the results for the year ending December 31, 2026.
Use of Estimates
The preparation of unaudited interim condensed financial statements in conformity with GAAP requires the Company to make estimates and assumptions that affect the amounts and disclosures. The Company uses significant judgments when making estimates related to the provision for excess and obsolete inventories. Actual results may ultimately materially differ from these estimates and assumptions.
Concentration of Credit Risk, and Other Risks and Uncertainties
Financial instruments that potentially subject the Company to credit risk consist of cash and cash equivalents, short-term investments and accounts receivable to the extent of the amounts recorded on the balance sheets.
The Company’s accounts receivable, with the exception of $0.1 million, are due from a variety of health care organizations in the United States. For the three months ended March 31, 2026 and 2025, there were no customers that represented 10% or more of revenue. As of March 31, 2026 and December 31, 2025, no customer represented 10% or more of the Company’s accounts receivable.
Remaining Performance Obligation and Contract Liabilities
The Company’s contract liabilities consist of deferred revenue of $0.1 million as of March 31, 2026 and December 31, 2025. Revenue recognized during the three months ended March 31, 2026 and March 31, 2025 that was included in the deferred revenue balance at the beginning of the year was $0.1 million and $0.2 million, respectively.
As of March 31, 2026, the aggregate amount of the transaction price allocated to the remaining performance obligations that are unsatisfied or partially unsatisfied was $1.9 million, which the Company expects to recognize as revenue by June 2028 pursuant to customer contract terms.
Government Programs
The Company continues to receive funding under its National Institutes of Health, or NIH, grant and recognizes funding as a reduction in research and development expenses in an amount equal to the qualifying expenses incurred in each period up to the amount awarded by the NIH. The Company received $0.2 million and $0.1 million in funding during the three months ended March 31, 2026 and 2025, respectively.
Qualifying expenses incurred by the Company in advance of funding by the NIH are recorded within prepaid expenses and other current assets on the balance sheets. As of March 31, 2026, the Company recorded prepaid expenses and other current assets of less than $0.1 million related to the fifth year of funding.
Recent Accounting Pronouncements
Recently Adopted Accounting Pronouncements
In July 2025, the Financial Accounting Standards Board, or the FASB, issued Accounting Standards Update, or ASU, No. 2025-05, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets, providing a practical expedient to measure credit losses on current accounts receivable and current contract assets under Accounting Standards Codification 606, Revenue from Contracts with Customers. The practical expedient assumes that current conditions as of the balance sheet date do not change for the remaining life of the asset. This ASU is effective for annual reporting periods beginning after December 15, 2025 and interim reporting periods within those annual reporting periods and should be applied prospectively. The Company adopted this ASU effective January 1, 2026. The adoption of this ASU did not have an impact on the Company’s financial statements and related disclosures.
Recent Accounting Pronouncements Not Yet Adopted
In November 2024, the FASB issued ASU 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40), and in January 2025, the FASB issued ASU 2025-01, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosure (Subtopic 220-40): Clarifying the Effective Date. ASU 2024-03 is intended to provide more detailed information about specified categories of expenses (including employee compensation, depreciation, and amortization) included in certain expense captions presented on the face of the income statement. ASU 2024-03, as clarified by ASU 2025-01, is effective for fiscal years beginning after December 15, 2026, and for interim periods within fiscal years beginning after December 15, 2027. Early adoption is permitted, and may be applied either prospectively to financial statements issued for reporting periods after its effective date or retrospectively to all prior periods presented in the financial statements. The Company is currently evaluating the impact this standard will have on its financial statement disclosures.
In December 2025, the FASB issued ASU No. 2025-10, Government Grants (Topic 832): Accounting for Government Grants Received by Business Entities, providing authoritative guidance on the recognition, measurement, presentation, and disclosure of government grants received by business entities. The standard introduces a framework for determining when grants should be recognized, distinguishing between asset-related and income-related grants, and allows entities to present grants either as a reduction of related expenses or as a separate income line item. Expanded disclosures about the nature, terms, and conditions of grants are required. This ASU is effective for annual reporting periods beginning after December 15, 2028 and interim reporting periods within those annual reporting periods, with early adoption permitted. The Company is currently evaluating the impact this guidance will have on its financial statements and related disclosures.
v3.26.1
Fair Value Measurements
3 Months Ended
Mar. 31, 2026
Fair Value Disclosures [Abstract]  
Fair Value Measurements Fair Value Measurements
The Company measures certain financial assets and liabilities at fair value on a recurring basis. Fair value is an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. The Company uses the following hierarchy to classify inputs used in measuring fair value:
Level 1Quoted prices in active markets for identical assets or liabilities.
Level 2Observable inputs other than Level 1
Level 3Unobservable inputs
The Company measures fair value using the market approach based on observable market data for identical or comparable instruments.
The following tables summarize the Company’s financial assets (cash equivalents and marketable securities) at fair value:
March 31, 2026
Basis for Fair Value Measurements
(in thousands)Level 1Level 2Level 3
Money market funds, included in cash and cash equivalents$11,730 $11,730 $— $— 
Fixed income mutual fund, included in short-term investments39,202 39,202 — — 
Total$50,932 $50,932 $— $— 
December 31, 2025
Basis for Fair Value Measurements
(in thousands)Level 1Level 2Level 3
Money market funds, included in cash and cash equivalents$18,965 $18,965 $— $— 
Fixed income mutual fund, included in short-term investments39,366 39,366 — — 
Total$58,331 $58,331 $— $— 
There were no liabilities measured at fair value on a recurring and non-recurring basis as of March 31, 2026 and December 31, 2025.
The money market funds are highly liquid and primarily invest in short-term fixed income securities issued by the U.S. government and U.S. government agencies.
The fixed income mutual fund is a short-term investment which primarily invests in debt securities issued by the U.S. government and U.S. government agencies and corporate bonds and notes. Interest income from short-term investment is recorded in interest income. During the three months ended March 31, 2026 and 2025, the Company recognized $0.2 million and $0.1 million in unrealized losses from its short-term investment, respectively. The Company’s short-term investment had a cumulative unrealized net gain of $0.0 million and $0.2 million as of March 31, 2026 and December 31, 2025, respectively.
v3.26.1
Balance Sheet Components
3 Months Ended
Mar. 31, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Balance Sheet Components Balance Sheet Components
Inventory
Inventories consist of the following:
March 31,December 31,
(in thousands)20262025
Raw materials
$6,114 $6,209 
Work-in-process
4,379 2,778 
Finished goods
6,201 7,909 
Total
$16,694 $16,896 
Property and Equipment, net
Property and equipment, net consists of the following:
March 31,December 31,
(in thousands)20262025
Machinery, equipment, furniture and fixtures$4,948 $4,917 
Computer equipment and software2,166 1,979 
Leasehold improvements2,435 2,435 
Total9,549 9,331 
Less: Accumulated depreciation(8,266)(8,206)
Property and equipment, net $1,283 $1,125 
Depreciation expense for the each of the three months ended March 31, 2026 and 2025 was less than $0.1 million.
Accrued Liabilities
Accrued liabilities consist of the following:
March 31,December 31,
(in thousands)20262025
Payroll and related expenses$6,998 $10,492 
Inventory purchases731 874 
Interest payable— 484
Professional fees203 374 
Vendor-related expenses593 256 
Other819 859 
Total$9,344 $13,339 
v3.26.1
Commitments and Contingencies
3 Months Ended
Mar. 31, 2026
Commitments and Contingencies Disclosure [Abstract]  
Commitments and Contingencies Commitments and Contingencies
Facility Lease
The Company leases combined office and manufacturing facilities in Mountain View, California under a non‑cancelable operating lease originally entered into in 2011 and amended most recently in 2022 to extend the term through June 2030. The lease includes an option to extend for an additional five‑year period through June 30, 2035. The renewal terms have not been included in the lease term used to calculate the right-of-use assets and lease liability as it is not reasonably certain that the Company will exercise the option. In connection with the lease, the Company maintains a letter of credit of $0.2 million in lieu of a security deposit.
The terms of the facility lease provide for rental payments on a graduated scale; however, rent expense is recognized on a straight-line basis over the lease term.
The maturities of operating lease liabilities are as follows:
(in thousands)March 31,
2026
2026 (remaining nine months)$2,273 
20273,122 
20283,215 
20293,312 
20301,704 
Total undiscounted lease payments13,626 
Less: imputed interest2,185 
Total operating lease liability11,441 
Less: current portion2,186 
Operating lease liability, net of current portion$9,255 
Operating lease cost was $0.7 million for the each of the three months ended March 31, 2026 and 2025. As of March 31, 2026, the remaining term for the operating lease in Mountain View, California was 4.25 years, and the discount rate used to measure the lease liability for such operating lease upon recognition was 8.5%.
During the three months ended March 31, 2026 and 2025, cash paid for amounts included in operating lease liabilities of $0.8 million and $0.7 million, respectively, was included in cash flows from operating activities on the condensed statements of cash flows.
Distribution Agreement
In August 2022, the Company entered into an exclusive distribution agreement, or the Distribution Agreement, with DIXI Medical USA Corp, or DIXI Medical, for its stereo electroencephalography product line, with an initial term through September 30, 2025. The Distribution Agreement required annual purchase commitments, which increased by 10% each year during the term. The Company satisfied these purchase commitment.
The Distribution Agreement provided for automatic one-year renewals unless either party gave at least 180 days notice of non-renewal. In March 2025, the Company provided notice of its intent not to renew and the Distribution Agreement terminated on September 30, 2025.
Following expiration, the Company was permitted to sell remaining inventory during a wind-down period, after which DIXI Medical was required to buy back, at cost, any DIXI product inventory with at least six months remaining shelf life held by the Company.
In December 2025, the Company and DIXI Medical amended the Distribution Agreement to end the wind-down period and cease commercial partnership activities on December 31, 2025. The Company has substantially completed the return of remaining inventory and had $0.4 million DIXI inventory as of March 31, 2026.
As discussed in Note 12, the Company expects to complete the return of all remaining DIXI inventory to DIXI Medical and cease all commercial partnership activities related to its Distribution Agreement with DIXI Medical by June 30, 2026.
Indemnifications
In the normal course of business, the Company enters into contracts and agreements that contain a variety of representations and warranties and indemnification provisions. The Company’s exposure under these arrangements is unknown, as it involves potential future claims.
The Company also indemnifies its directors and officers, subject to certain limits, as permitted under Delaware law and its governing documents. These obligations extend through the duration of any related proceedings, and the
maximum potential payments are not estimable. The Company believes that the fair value of such obligations is minimal and has not recognized any liabilities as of March 31, 2026 and December 31, 2025.
Contingencies
From time to time, the Company may have certain contingent liabilities that arise in the ordinary course of business activities. The Company records a liability for contingent obligations when a loss is probable and reasonably estimable. No accrual was required as of March 31, 2026 and December 31, 2025.
Legal Proceedings
The Company is not involved in any material legal proceedings. From time to time, the Company may be involved in litigation arising in the ordinary course of business. The Company regularly evaluates current information and records accruals as appropriate. Legal costs are expensed as incurred. No material accruals were recorded as of March 31, 2026 and December 31, 2025.
v3.26.1
Debt
3 Months Ended
Mar. 31, 2026
Debt Disclosure [Abstract]  
Debt Debt
CRG Term Loan
In September 2020, the Company entered into a Term Loan Agreement with CRG Partners IV L.P. and its affiliates, or the CRG Term Loan, and borrowed $50.0 million. The CRG Term Loan initially bore interest at a rate of 12.5% per year and was interest-only through maturity on September 30, 2025. In February 2023, the CRG Term Loan was amended which increased the annual interest rate to 13.5% effective March 1, 2023. In May 2024, the maturity date was extended to September 30, 2026. Interest was payable quarterly at the end of each calendar quarter. The CRG Term Loan was collateralized by substantially all of the Company’s assets and included customary covenants and default provisions.
In June 2025, the Company repaid the CRG Term Loan in full using the proceeds from MidCap Term Loan (as defined below). Total repayment amounted to $61.9 million, including principal of $56.0 million, interest of $1.4 million and backend fee of $4.5 million, which was reduced from 10% to 8% upon repayment. The repayment was accounted for as a debt extinguishment and the Company recorded a loss on extinguishment of $0.5 million included in other income (expense), net in the statements of operations and comprehensive loss.
During the three months ended March 31, 2025, the Company recorded interest expense and interest expense related to debt discount and debt issuance costs of the CRG Term Loan of $2.2 million and less than $0.1 million, respectively.
MidCap Term Loan
In June 2025, the Company entered into a credit, security and guaranty agreement (see Note 1), or MidCap Credit Agreement, with MidCap Funding IV Trust, as agent, MidCap Financial Trust, as term loan servicer and the financial institutions and other entities from time to time party thereto, or the Lenders. The MidCap Credit Agreement provides for a first lien senior secured credit facility consisting of (i) a $60.0 million term loan facility, or MidCap Term Loan, which was funded at closing of the MidCap Credit Agreement, and (ii) a revolving credit facility in an aggregate principal amount not to exceed $15.0 million, or the Revolver, and together with the MidCap Term Loan, the Loans.
The Loans mature on June 4, 2030 with principal due at maturity. The MidCap Term Loan bears interest at an annual rate of the 30-day forward-looking term Secured Overnight Financing Rate, or SOFR, plus 5.5%, subject to a 2.0% SOFR floor. Borrowings under the Revolver will accrue interest at an annual rate of the 30-day forward-looking term SOFR plus 3.75%, subject to a 2.0% SOFR floor. Following the initial borrowing of the Revolver, the Company will pay an unused line fee equal to 0.25% per annum of the average unused portion of the Revolver. Interest and unused line fee, if any, are payable monthly in arrears.
The Company may repay the Loans, in whole or in part, at any time, subject to a prepayment premium of 3.0%, 2.0%, and 1.0% in the first, second and third years, respectively, and 0% thereafter. In addition, the MidCap Term
Loan is subject to a 2% exit fee upon repayment. In addition, the Company shall pay an annual administrative fee, payable in advance, equal to 0.25% of the aggregate outstanding principal of the MidCap Term Loan.
The Loans are collateralized by substantially all of the Company’s assets and subject to customary covenants and default provisions (see Note 1 for its financial covenants).
The Company incurred $1.5 million of debt issuance costs, recorded as a discount on the MidCap Term Loan and amortized over the life of the loan using the effective interest method.
Interest expense on the MidCap Term Loan was $1.5 million for the three months ended March 31, 2026, including interest expense related to debt discount and debt issuance costs of the MidCap Term Loan of $0.1 million.
The Revolver has not been drawn upon as of March 31, 2026.
The following table sets forth the Company’s future minimum payments for the MidCap Term Loan as of March 31, 2026. Estimated future interest payments are calculated using the effective interest rate of 10.8% at March 31, 2026.
(in thousands)Estimated Interest and Administrative FeePrincipal and Exit FeeTotal
2026 (remaining nine months)$4,352 $— $4,352 
20275,727 — 5,727 
20285,742 — 5,742 
20295,727 — 5,727 
20302,842 61,200 64,042 
Total$24,390 $61,200 $85,590 
Less: Unamortized debt discount and issuance cost(2,779)
Less: Interest(23,790)
Long-term Debt$59,021 
v3.26.1
Common Stock
3 Months Ended
Mar. 31, 2026
Equity [Abstract]  
Common Stock Common Stock
The Company’s Amended and Restated Certificate of Incorporation authorizes 200,000,000 shares of common stock with a par value of $0.001 per share.
The holders of common stock are entitled to receive dividends when declared by the Board of Directors, subject to legally available funds. No dividends had been declared as of March 31, 2026 and December 31, 2025.
The Company’s common stock reserved for future issuance is as follows:
March 31,December 31,
20262025
Shares available for future grant under the 2021 Equity Incentive Plan3,709,726 2,700,057 
Outstanding options under the 2021 Equity Incentive Plan2,176,749 2,218,352 
Outstanding options under the 2023 Inducement Plan380,424 380,424 
Common stock available for Employee Stock Purchase Plan985,778 650,031 
Outstanding restricted stock units under the 2021 Equity Incentive Plan1,218,111 1,177,836 
Total8,470,788 7,126,700 
v3.26.1
Stock Plans
3 Months Ended
Mar. 31, 2026
Share-Based Payment Arrangement [Abstract]  
Stock Plans Stock Plans
A summary of shares available for grant under the Company’s 2021 Equity Incentive Plan, or the 2021 Plan, is as follows:
Shares Available for Grant
Shares available for grant as of January 1, 20262,700,057 
Authorized1,342,990 
Granted/Awarded(356,357)
Cancelled10,436 
Withheld for taxes12,600 
Shares available for grant as of March 31, 2026
3,709,726 
A summary of stock option activity is set forth below:
Number of SharesWeighted-Average Exercise PriceWeighted Average Remaining Contractual Term (in Years)Aggregate Intrinsic Value (in thousands)
Outstanding as of January 1, 20262,598,776 $7.09 7.10$22,510
Granted— $— 
Exercised(41,603)$0.24 
Cancelled— $— 
Outstanding as of March 31, 2026
2,557,173 $7.20 6.88$16,964
Vested and exercisable at March 31, 2026
1,894,067 $6.13 6.33$14,550
Vested and expected to vest at March 31, 2026
2,557,173 $7.20 6.88$16,964
Employee Stock Purchase Plan
In April 2021, the Company adopted the 2021 Employee Stock Purchase Plan, or ESPP. Under the ESPP, eligible employees may purchase shares through payroll deductions at a price equal to 85% of the lesser of the fair market value of the stock at the beginning or end of each offering period, typically six months. An aggregate of 580,000 shares was initially reserved for issuance, with an additional 335,747 shares added in January 2026 pursuant to the plan’s automatic increase provision.
As of March 31, 2026, 985,778 shares under the ESPP remain available for purchase. The offering period and purchase period is determined by the board of directors. A new offering period of six months began December 7, 2025 and will end June 6, 2026.
Restricted Stock Units
Activity with respect to restricted stock units, or RSUs, is as follows:
Number of Shares Underlying Outstanding RSUsWeighted Average Grant Date Fair Value
Unvested, January 1, 2026
1,177,836 
$
11.42 
Granted
356,357 
$
13.60 
Vested
(305,646)
$
9.16 
Cancelled
(10,436)
$
12.45 
Unvested, March 31, 2026
1,218,111 
$
12.62 
Stock-Based Compensation
The Company recognized stock-based compensation as follows:
Three Months Ended March 31,
(in thousands)20262025
Cost of goods sold$138 $178 
Sales and marketing595 783 
Research and development713 872 
General and administrative832 793 
Total stock-based compensation$2,278 $2,626 
As of March 31, 2026, the total unrecognized stock-based compensation expense related to unvested stock options and RSUs was $18.4 million, which will be amortized on a straight-line basis over a weighted average remaining period of 2.8 years.
As of March 31, 2026, the Company had unrecognized stock-based compensation expense relating to the ESPP awards of $0.1 million, which is expected to be recognized over a weighted-average period of 0.2 years.
v3.26.1
Income Taxes
3 Months Ended
Mar. 31, 2026
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
The Company did not record a federal or state income tax provision or benefit for the three months ended March 31, 2026 and 2025 due to cumulative net losses. Deferred tax assets, primarily related to net operating losses, are fully offset by a valuation allowance as realization is not considered more likely than not.
The Company accounts for the uncertainty in income taxes in accordance with applicable guidance. There were no changes in unrecognized tax benefits during the period
v3.26.1
Net Loss per Share Attributable to Common Stockholders
3 Months Ended
Mar. 31, 2026
Earnings Per Share [Abstract]  
Net Loss per Share Attributable to Common Stockholders Net Loss per Share Attributable to Common Stockholders
The following table sets forth the computation of basic and diluted net loss per share attributable to common stockholders:
Three Months Ended March 31,
(in thousands, except for share and per share amounts)20262025
Numerator:
Net loss attributable to common stockholders$(6,689)$(6,589)
Denominator:
Weighted-average common stock outstanding used to compute basic and diluted net loss per share33,716,813 31,480,911 
Net loss per share attributable to common stockholders, basic and diluted$(0.20)$(0.21)
The following potentially dilutive securities outstanding have been excluded from the computation of diluted weighted average shares outstanding because such securities have an antidilutive impact due to the Company’s net loss, in common stock equivalent shares:
March 31,
20262025
Options to purchase common stock2,557,173 2,553,690 
Unvested RSUs
1,218,111 1,746,958 
Shares committed under ESPP62,403 68,629 
Total Shares3,837,687 4,369,277 
v3.26.1
Segment Information
3 Months Ended
Mar. 31, 2026
Segment Reporting [Abstract]  
Segment Information Segment Information
The Company operates as one operating and reportable segment. All of the Company’s long-lived assets, comprised of property and equipment, are based in the United States. All of the Company’s revenue, with the exception of $0.7 million and $0.1 million, was in the United States for the three months ended March 31, 2026 and 2025, respectively, based on the shipping location of the external customer.
The Company’s chief operating decision maker, or CODM, is its Chief Executive Officer. The CODM makes decisions on resource allocation, evaluates operating performance, and monitors budget versus actual results using net loss. Significant expense categories included within net loss include cost of goods sold, sales and marketing expense, research and development expense, and general and administrative expense, which are presented on the Company’s statements of operations and comprehensive loss. Other segment items within net loss include interest income, interest expense, and other income (expense), net.
v3.26.1
Subsequent Events
3 Months Ended
Mar. 31, 2026
Subsequent Events [Abstract]  
Subsequent Events Subsequent Events
As noted in Note 5, the Company and DIXI Medical amended the Distribution Agreement to end the wind-down period and cease commercial partnership activities on December 31, 2025. The Company has substantially completed the return of remaining inventory and had $0.4 million DIXI inventory as of March 31, 2026.
During the period from April 1, 2026 to May 12, 2026, the Company returned $0.1 million DIXI inventory. As of May 12, 2026, the Company holds $0.3 million DIXI inventory, which it expects to return by June 30, 2026.
Based on the facts and circumstances, management believes that the termination of its Distribution Agreement with DIXI Medical represents a strategic shift that is expected to have a major effect on the Company’s operations and financial results. The Company has evaluated the termination of the Distribution Agreement under the guidance in ASC 205-20 and expects that upon return of the remaining $0.3 million DIXI inventory, the criteria for presentation as discontinued operations will be met. Accordingly, the Company expects to present the operating results of the Distribution Agreement with DIXI Medical as discontinued operations in its condensed statements of operations and comprehensive loss in future periods, which may begin in the quarter ending June 30, 2026 and the applicable comparable periods presented.
The following information presents selected historical operating results of the Distribution Agreement with DIXI Medical for informational purposes only and does not represent discontinued operations presentation for the periods presented.
Three Months Ended March 31,
(in thousands)20262025
Revenue$65 $4,203 
Cost of goods sold281,992
Gross profit372,211
Operating expenses:
Sales and marketing598
Income from DIXI Distribution Agreement$37 $1,613 
v3.26.1
Insider Trading Arrangements
3 Months Ended
Mar. 31, 2026
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
v3.26.1
Summary of Significant Accounting Policies (Policies)
3 Months Ended
Mar. 31, 2026
Accounting Policies [Abstract]  
Basis of Presentation and Unaudited Interim Financial Information
Basis of Presentation
The unaudited interim condensed financial statements have been prepared in conformity with generally accepted accounting principles in the United States, or GAAP.
Unaudited Interim Financial Information
The condensed balance sheet as of December 31, 2025 was derived from the Company’s audited financial statements, but does not include all disclosures required by GAAP. The accompanying unaudited condensed financial statements as of March 31, 2026 and for the three months ended March 31, 2026 and 2025, have been prepared by the Company, pursuant to the rules and regulations of the SEC for interim financial statements. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Accordingly, these financial statements should be read in conjunction with the audited financial statements as of and for the year ended December 31, 2025 and notes thereto, which are included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2025 filed with the SEC on March 3, 2026. In the opinion of management, all normal recurring adjustments necessary for a fair presentation have been included. The results for the three months ended March 31, 2026 are not necessarily indicative of the results for the year ending December 31, 2026.
Use of Estimates
Use of Estimates
The preparation of unaudited interim condensed financial statements in conformity with GAAP requires the Company to make estimates and assumptions that affect the amounts and disclosures. The Company uses significant judgments when making estimates related to the provision for excess and obsolete inventories. Actual results may ultimately materially differ from these estimates and assumptions.
Concentration of Credit Risk, and Other Risks and Uncertainties
Concentration of Credit Risk, and Other Risks and Uncertainties
Financial instruments that potentially subject the Company to credit risk consist of cash and cash equivalents, short-term investments and accounts receivable to the extent of the amounts recorded on the balance sheets.
The Company’s accounts receivable, with the exception of $0.1 million, are due from a variety of health care organizations in the United States. For the three months ended March 31, 2026 and 2025, there were no customers that represented 10% or more of revenue. As of March 31, 2026 and December 31, 2025, no customer represented 10% or more of the Company’s accounts receivable.
Government Programs
Government Programs
The Company continues to receive funding under its National Institutes of Health, or NIH, grant and recognizes funding as a reduction in research and development expenses in an amount equal to the qualifying expenses incurred in each period up to the amount awarded by the NIH. The Company received $0.2 million and $0.1 million in funding during the three months ended March 31, 2026 and 2025, respectively.
Qualifying expenses incurred by the Company in advance of funding by the NIH are recorded within prepaid expenses and other current assets on the balance sheets. As of March 31, 2026, the Company recorded prepaid expenses and other current assets of less than $0.1 million related to the fifth year of funding.
Recent Accounting Pronouncements Adopted and Not Yet Adopted
Recent Accounting Pronouncements
Recently Adopted Accounting Pronouncements
In July 2025, the Financial Accounting Standards Board, or the FASB, issued Accounting Standards Update, or ASU, No. 2025-05, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets, providing a practical expedient to measure credit losses on current accounts receivable and current contract assets under Accounting Standards Codification 606, Revenue from Contracts with Customers. The practical expedient assumes that current conditions as of the balance sheet date do not change for the remaining life of the asset. This ASU is effective for annual reporting periods beginning after December 15, 2025 and interim reporting periods within those annual reporting periods and should be applied prospectively. The Company adopted this ASU effective January 1, 2026. The adoption of this ASU did not have an impact on the Company’s financial statements and related disclosures.
Recent Accounting Pronouncements Not Yet Adopted
In November 2024, the FASB issued ASU 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40), and in January 2025, the FASB issued ASU 2025-01, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosure (Subtopic 220-40): Clarifying the Effective Date. ASU 2024-03 is intended to provide more detailed information about specified categories of expenses (including employee compensation, depreciation, and amortization) included in certain expense captions presented on the face of the income statement. ASU 2024-03, as clarified by ASU 2025-01, is effective for fiscal years beginning after December 15, 2026, and for interim periods within fiscal years beginning after December 15, 2027. Early adoption is permitted, and may be applied either prospectively to financial statements issued for reporting periods after its effective date or retrospectively to all prior periods presented in the financial statements. The Company is currently evaluating the impact this standard will have on its financial statement disclosures.
In December 2025, the FASB issued ASU No. 2025-10, Government Grants (Topic 832): Accounting for Government Grants Received by Business Entities, providing authoritative guidance on the recognition, measurement, presentation, and disclosure of government grants received by business entities. The standard introduces a framework for determining when grants should be recognized, distinguishing between asset-related and income-related grants, and allows entities to present grants either as a reduction of related expenses or as a separate income line item. Expanded disclosures about the nature, terms, and conditions of grants are required. This ASU is effective for annual reporting periods beginning after December 15, 2028 and interim reporting periods within those annual reporting periods, with early adoption permitted. The Company is currently evaluating the impact this guidance will have on its financial statements and related disclosures.
Fair Value Measurements
The Company measures certain financial assets and liabilities at fair value on a recurring basis. Fair value is an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. The Company uses the following hierarchy to classify inputs used in measuring fair value:
Level 1Quoted prices in active markets for identical assets or liabilities.
Level 2Observable inputs other than Level 1
Level 3Unobservable inputs
The Company measures fair value using the market approach based on observable market data for identical or comparable instruments.
v3.26.1
Fair Value Measurements (Tables)
3 Months Ended
Mar. 31, 2026
Fair Value Disclosures [Abstract]  
Schedule of Assets and Liabilities, Measured at Fair Value
The following tables summarize the Company’s financial assets (cash equivalents and marketable securities) at fair value:
March 31, 2026
Basis for Fair Value Measurements
(in thousands)Level 1Level 2Level 3
Money market funds, included in cash and cash equivalents$11,730 $11,730 $— $— 
Fixed income mutual fund, included in short-term investments39,202 39,202 — — 
Total$50,932 $50,932 $— $— 
December 31, 2025
Basis for Fair Value Measurements
(in thousands)Level 1Level 2Level 3
Money market funds, included in cash and cash equivalents$18,965 $18,965 $— $— 
Fixed income mutual fund, included in short-term investments39,366 39,366 — — 
Total$58,331 $58,331 $— $— 
v3.26.1
Balance Sheet Components (Tables)
3 Months Ended
Mar. 31, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Schedule of Inventory, Current
Inventories consist of the following:
March 31,December 31,
(in thousands)20262025
Raw materials
$6,114 $6,209 
Work-in-process
4,379 2,778 
Finished goods
6,201 7,909 
Total
$16,694 $16,896 
Schedule of Property, Plant and Equipment
Property and equipment, net consists of the following:
March 31,December 31,
(in thousands)20262025
Machinery, equipment, furniture and fixtures$4,948 $4,917 
Computer equipment and software2,166 1,979 
Leasehold improvements2,435 2,435 
Total9,549 9,331 
Less: Accumulated depreciation(8,266)(8,206)
Property and equipment, net $1,283 $1,125 
Schedule of Accrued Liabilities
Accrued liabilities consist of the following:
March 31,December 31,
(in thousands)20262025
Payroll and related expenses$6,998 $10,492 
Inventory purchases731 874 
Interest payable— 484
Professional fees203 374 
Vendor-related expenses593 256 
Other819 859 
Total$9,344 $13,339 
v3.26.1
Commitments and Contingencies (Tables)
3 Months Ended
Mar. 31, 2026
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Maturities of Operating Lease Liabilities
The maturities of operating lease liabilities are as follows:
(in thousands)March 31,
2026
2026 (remaining nine months)$2,273 
20273,122 
20283,215 
20293,312 
20301,704 
Total undiscounted lease payments13,626 
Less: imputed interest2,185 
Total operating lease liability11,441 
Less: current portion2,186 
Operating lease liability, net of current portion$9,255 
v3.26.1
Debt (Tables)
3 Months Ended
Mar. 31, 2026
Debt Disclosure [Abstract]  
Schedule of Maturities of Long-term Debt
The following table sets forth the Company’s future minimum payments for the MidCap Term Loan as of March 31, 2026. Estimated future interest payments are calculated using the effective interest rate of 10.8% at March 31, 2026.
(in thousands)Estimated Interest and Administrative FeePrincipal and Exit FeeTotal
2026 (remaining nine months)$4,352 $— $4,352 
20275,727 — 5,727 
20285,742 — 5,742 
20295,727 — 5,727 
20302,842 61,200 64,042 
Total$24,390 $61,200 $85,590 
Less: Unamortized debt discount and issuance cost(2,779)
Less: Interest(23,790)
Long-term Debt$59,021 
v3.26.1
Common Stock (Tables)
3 Months Ended
Mar. 31, 2026
Equity [Abstract]  
Schedule of Stock by Class
The Company’s common stock reserved for future issuance is as follows:
March 31,December 31,
20262025
Shares available for future grant under the 2021 Equity Incentive Plan3,709,726 2,700,057 
Outstanding options under the 2021 Equity Incentive Plan2,176,749 2,218,352 
Outstanding options under the 2023 Inducement Plan380,424 380,424 
Common stock available for Employee Stock Purchase Plan985,778 650,031 
Outstanding restricted stock units under the 2021 Equity Incentive Plan1,218,111 1,177,836 
Total8,470,788 7,126,700 
v3.26.1
Stock Plans (Tables)
3 Months Ended
Mar. 31, 2026
Share-Based Payment Arrangement [Abstract]  
Schedule of Available for Grant
A summary of shares available for grant under the Company’s 2021 Equity Incentive Plan, or the 2021 Plan, is as follows:
Shares Available for Grant
Shares available for grant as of January 1, 20262,700,057 
Authorized1,342,990 
Granted/Awarded(356,357)
Cancelled10,436 
Withheld for taxes12,600 
Shares available for grant as of March 31, 2026
3,709,726 
Schedule of Stock Option Activity
A summary of stock option activity is set forth below:
Number of SharesWeighted-Average Exercise PriceWeighted Average Remaining Contractual Term (in Years)Aggregate Intrinsic Value (in thousands)
Outstanding as of January 1, 20262,598,776 $7.09 7.10$22,510
Granted— $— 
Exercised(41,603)$0.24 
Cancelled— $— 
Outstanding as of March 31, 2026
2,557,173 $7.20 6.88$16,964
Vested and exercisable at March 31, 2026
1,894,067 $6.13 6.33$14,550
Vested and expected to vest at March 31, 2026
2,557,173 $7.20 6.88$16,964
Schedule of Restricted Stock Units
Activity with respect to restricted stock units, or RSUs, is as follows:
Number of Shares Underlying Outstanding RSUsWeighted Average Grant Date Fair Value
Unvested, January 1, 2026
1,177,836 
$
11.42 
Granted
356,357 
$
13.60 
Vested
(305,646)
$
9.16 
Cancelled
(10,436)
$
12.45 
Unvested, March 31, 2026
1,218,111 
$
12.62 
Schedule of Share-based Payment Arrangement, Expensed and Capitalized, Amount
The Company recognized stock-based compensation as follows:
Three Months Ended March 31,
(in thousands)20262025
Cost of goods sold$138 $178 
Sales and marketing595 783 
Research and development713 872 
General and administrative832 793 
Total stock-based compensation$2,278 $2,626 
v3.26.1
Net Loss per Share Attributable to Common Stockholders (Tables)
3 Months Ended
Mar. 31, 2026
Earnings Per Share [Abstract]  
Schedule of Computation of Basic and Diluted Net Loss Per Share
The following table sets forth the computation of basic and diluted net loss per share attributable to common stockholders:
Three Months Ended March 31,
(in thousands, except for share and per share amounts)20262025
Numerator:
Net loss attributable to common stockholders$(6,689)$(6,589)
Denominator:
Weighted-average common stock outstanding used to compute basic and diluted net loss per share33,716,813 31,480,911 
Net loss per share attributable to common stockholders, basic and diluted$(0.20)$(0.21)
Schedule of Potentially Dilutive Securities Outstanding
The following potentially dilutive securities outstanding have been excluded from the computation of diluted weighted average shares outstanding because such securities have an antidilutive impact due to the Company’s net loss, in common stock equivalent shares:
March 31,
20262025
Options to purchase common stock2,557,173 2,553,690 
Unvested RSUs
1,218,111 1,746,958 
Shares committed under ESPP62,403 68,629 
Total Shares3,837,687 4,369,277 
v3.26.1
Subsequent Events (Tables)
3 Months Ended
Mar. 31, 2026
Subsequent Events [Abstract]  
Schedule of Activity of Discontinued Operations
The following information presents selected historical operating results of the Distribution Agreement with DIXI Medical for informational purposes only and does not represent discontinued operations presentation for the periods presented.
Three Months Ended March 31,
(in thousands)20262025
Revenue$65 $4,203 
Cost of goods sold281,992
Gross profit372,211
Operating expenses:
Sales and marketing598
Income from DIXI Distribution Agreement$37 $1,613 
v3.26.1
The Company (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Feb. 28, 2025
Jan. 31, 2025
Nov. 30, 2022
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2030
Dec. 31, 2025
Finite-Lived Intangible Assets [Line Items]              
Shares repurchased, at cost $ 49,500            
Shares repurchases (in shares) 5,270,845            
Repurchase share price (in dollars per share) $ 9.40            
Accumulated deficit       $ 559,104     $ 552,415
Net cash used in operating activities       5,900 $ 7,482    
Cash, cash equivalents, and short-term investments       54,000      
RNS System              
Finite-Lived Intangible Assets [Line Items]              
Minimum annual net revenue in next twelve months       90,000      
Minimum annual net revenue thereafter       35,000      
Maximum annual net revenue       69,200      
Annual net revenue       85,200      
Minimum annual net revenue       71,900      
Minimum liquidity threshold balance       25,000      
RNS System | Forecast              
Finite-Lived Intangible Assets [Line Items]              
Maximum annual net revenue           $ 87,300  
MidCap Agreement              
Finite-Lived Intangible Assets [Line Items]              
Covenant liquidity threshold amount in next two years       60,000      
Covenant liquidity threshold amount in thereafter       $ 40,000      
At-the-Market Equity Offering              
Finite-Lived Intangible Assets [Line Items]              
Proceeds from issuance of preferred stock, preference stock, and warrants     $ 150,000        
Proceeds from issuance or sale by company of common stock     $ 50,000        
Percentage of shares of common stock sold under sales agreement     3.00%        
Number of shares issued in transaction (in shares)   18,590          
Aggregate net proceeds   $ 200          
Amount remaining under ATM program $ 38,300            
Follow-on Offering              
Finite-Lived Intangible Assets [Line Items]              
Number of shares issued in transaction (in shares) 7,475,000            
Sale of stock (in dollars per share) $ 10.00            
Consideration received on transaction $ 69,700            
Over-Allotment Option              
Finite-Lived Intangible Assets [Line Items]              
Number of shares issued in transaction (in shares) 975,000            
v3.26.1
Summary of Significant Accounting Policies (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Research and Development Arrangement, Contract to Perform for Others [Line Items]      
Accounts receivable, with the exception of due $ 100    
Deferred revenue 126   $ 141
Deferred revenue recognized 100 $ 200  
Remaining performance obligation 1,900    
Funding received for costs incurred 200 $ 100  
Prepaid expenses and other current assets 1,515   $ 1,438
Additional Funding Agreement Terms      
Research and Development Arrangement, Contract to Perform for Others [Line Items]      
Prepaid expenses and other current assets $ 100    
v3.26.1
Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Assets:    
Money market funds, included in cash and cash equivalents $ 11,730 $ 18,965
Fixed income mutual fund, included in short-term investments 39,202 39,366
Total 50,932 58,331
Level 1    
Assets:    
Money market funds, included in cash and cash equivalents 11,730 18,965
Fixed income mutual fund, included in short-term investments 39,202 39,366
Total 50,932 58,331
Level 2    
Assets:    
Money market funds, included in cash and cash equivalents 0 0
Fixed income mutual fund, included in short-term investments 0 0
Total 0 0
Level 3    
Assets:    
Money market funds, included in cash and cash equivalents 0 0
Fixed income mutual fund, included in short-term investments 0 0
Total $ 0 $ 0
v3.26.1
Fair Value Measurements - Narrative (Details) - USD ($)
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Fair Value Disclosures [Abstract]      
Fair value liabilities $ 0   $ 0
Unrealized loss 200,000 $ 100,000  
Cumulative unrealized net gain $ 0.0   $ 200,000
v3.26.1
Balance Sheet Components - Schedule of Inventory (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Raw materials $ 6,114 $ 6,209
Work-in-process 4,379 2,778
Finished goods 6,201 7,909
Total $ 16,694 $ 16,896
v3.26.1
Balance Sheet Components -Schedule of Property, Plant and Equipment (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 9,549 $ 9,331
Less: Accumulated depreciation (8,266) (8,206)
Property and equipment, net 1,283 1,125
Machinery, equipment, furniture and fixtures    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 4,948 4,917
Computer equipment and software    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 2,166 1,979
Leasehold improvements    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 2,435 $ 2,435
v3.26.1
Balance Sheet Components - Schedule of Accrued Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Payroll and related expenses $ 6,998 $ 10,492
Inventory purchases 731 874
Interest payable 0 484
Professional fees 203 374
Vendor-related expenses 593 256
Other 819 859
Total $ 9,344 $ 13,339
v3.26.1
Commitments and Contingencies - Narrative (Details) - USD ($)
1 Months Ended 3 Months Ended
Aug. 31, 2022
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Loss Contingencies [Line Items]        
Renewal term   5 years    
Operating lease cost   $ 700,000 $ 700,000  
Operating lease term   4 years 3 months    
Operating lease percent   8.50%    
Operating lease, payments   $ 800,000 $ 700,000  
Percentage increase in purchase commitment 10.00%      
Distribution agreement, renewal term 1 year      
Distribution agreement intention to not renew 180 days      
Indemnification liability accrued for officers and directors   0   $ 0
Accrual for contingent liabilities   0   0
Pending Litigation        
Loss Contingencies [Line Items]        
Accrual for contingent liabilities   0   $ 0
DIXI Medical USA Corp        
Loss Contingencies [Line Items]        
Product inventory   400,000    
Lease Facility        
Loss Contingencies [Line Items]        
Face amount   $ 200,000    
v3.26.1
Commitments and Contingencies - Schedule of Maturities of Operating Lease Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Commitments and Contingencies Disclosure [Abstract]    
2026 (remaining nine months) $ 2,273  
2027 3,122  
2028 3,215  
2029 3,312  
2030 1,704  
Total undiscounted lease payments 13,626  
Less: imputed interest 2,185  
Total operating lease liability 11,441  
Less: current portion 2,186 $ 2,117
Operating lease liability, net of current portion $ 9,255 $ 9,836
v3.26.1
Debt - Narrative (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended
Jun. 30, 2025
Sep. 30, 2020
Mar. 31, 2026
Mar. 31, 2025
May 31, 2025
Mar. 01, 2023
Debt Instrument [Line Items]            
Amortization of debt discount and issuance costs     $ 68 $ 49    
CRG Term Loan Agreement            
Debt Instrument [Line Items]            
Proceeds from long term debt   $ 50,000        
Interest rate   12.50%        
Effective percentage           13.50%
Repayment of debt $ 61,900          
Principal repaid 56,000          
Interest expense 1,400     2,200    
Backend fee $ 4,500          
Redemption fee, percent 8.00%       10.00%  
Loss on debt extinguishment $ 500          
Amortization of debt discount and issuance costs       $ 100    
MidCap Agreement | Revolving Credit Facility            
Debt Instrument [Line Items]            
Aggregate principal amount 15,000          
MidCap Agreement | Mid Term Note            
Debt Instrument [Line Items]            
Effective percentage     10.80%      
Interest expense     $ 1,500      
Amortization of debt discount and issuance costs     $ 100      
Provision for term loan facility $ 60,000          
Prepayment fee, percent 0.02          
Annual administrative fee payable, percent 0.0025          
Unamortized discount $ 1,500          
MidCap Agreement | Mid Term Note | First Year            
Debt Instrument [Line Items]            
Prepayment fee, percent 0.030          
MidCap Agreement | Mid Term Note | Second Year            
Debt Instrument [Line Items]            
Prepayment fee, percent 0.020          
MidCap Agreement | Mid Term Note | Third Year            
Debt Instrument [Line Items]            
Prepayment fee, percent 0.010          
MidCap Agreement | Mid Term Note | Thereafter            
Debt Instrument [Line Items]            
Prepayment fee, percent 0          
MidCap Agreement | Mid Term Note | SOFR            
Debt Instrument [Line Items]            
Interest at floating rate 5.50%          
MidCap Agreement | Mid Term Note | SOFR Floor            
Debt Instrument [Line Items]            
Interest at floating rate 2.00%          
MidCap Agreement | Mid Term Note | Revolving Credit Facility            
Debt Instrument [Line Items]            
Unused line fee payable, percent 0.25%          
MidCap Agreement | Mid Term Note | Revolving Credit Facility | SOFR            
Debt Instrument [Line Items]            
Interest at floating rate 3.75%          
MidCap Agreement | Mid Term Note | Revolving Credit Facility | SOFR Floor            
Debt Instrument [Line Items]            
Interest at floating rate 2.00%          
v3.26.1
Debt - Schedule of Maturities of Long-term Debt (Details) - MidCap Agreement - Mid Term Note
$ in Thousands
Mar. 31, 2026
USD ($)
Debt Instrument [Line Items]  
2026 (remaining nine months) $ 4,352
2027 5,727
2028 5,742
2029 5,727
2030 64,042
Total 85,590
Less: Unamortized debt discount and issuance cost (2,779)
Less: Interest (23,790)
Long-term Debt 59,021
Estimated Interest and Administrative Fee  
Debt Instrument [Line Items]  
2026 (remaining nine months) 4,352
2027 5,727
2028 5,742
2029 5,727
2030 2,842
Total 24,390
Principal and Exit Fee  
Debt Instrument [Line Items]  
2026 (remaining nine months) 0
2027 0
2028 0
2029 0
2030 61,200
Total $ 61,200
v3.26.1
Common Stock (Details) - $ / shares
3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Class of Stock [Line Items]    
Common stock authorized (in shares) 200,000,000 200,000,000
Common stock par value (in dollars per share) $ 0.001 $ 0.001
Dividends declared cash (in dollars per share) $ 0 $ 0
Common stock reserved for future issuance (in shares) 8,470,788 7,126,700
Shares available for future grant under the 2021 Equity Incentive Plan    
Class of Stock [Line Items]    
Common stock reserved for future issuance (in shares) 3,709,726 2,700,057
Outstanding options under the 2021 Equity Incentive Plan    
Class of Stock [Line Items]    
Common stock reserved for future issuance (in shares) 2,176,749 2,218,352
Outstanding options under the 2023 Inducement Plan    
Class of Stock [Line Items]    
Common stock reserved for future issuance (in shares) 380,424 380,424
Common stock available for Employee Stock Purchase Plan    
Class of Stock [Line Items]    
Common stock reserved for future issuance (in shares) 985,778 650,031
Outstanding restricted stock units under the 2021 Equity Incentive Plan    
Class of Stock [Line Items]    
Common stock reserved for future issuance (in shares) 1,218,111 1,177,836
v3.26.1
Stock Plans - Schedule of Available for Grant (Details) - 2021 Equity Incentive Plan
3 Months Ended
Mar. 31, 2026
shares
Shares Available for Grant  
Shares available for grant, beginning balance (in shares) 2,700,057
Authorized (in shares) 1,342,990
Granted/Awarded (in shares) (356,357)
Cancelled (in shares) 10,436
Withheld for taxes (in shares) 12,600
Shares available for grant, ending balance (in shares) 3,709,726
v3.26.1
Stock Plans - Schedule of Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Number of Shares    
Beginning balance (in shares) 2,598,776  
Granted (in shares) 0  
Exercised (in shares) (41,603)  
Cancelled (in shares) 0  
Ending balance (in shares) 2,557,173 2,598,776
Vested and exercisable (in shares) 1,894,067  
Vested and expected to vest (in shares) 2,557,173  
Weighted-Average Exercise Price    
Beginning balance (in dollars per share) $ 7.09  
Granted (in dollars per share) 0  
Exercised (in dollars per share) 0.24  
Cancelled (in dollars per share) 0  
Ending balance (in dollars per share) 7.20 $ 7.09
Vested and exercisable (in dollars per share) 6.13  
Vested and expected to vest (in dollars per share) $ 7.20  
Weighted Average Remaining Contractual Term (in Years)    
Balance 6 years 10 months 17 days 7 years 1 month 6 days
Vested and exercisable 6 years 3 months 29 days  
Vested and expected to vest 6 years 10 months 17 days  
Outstanding $ 16,964 $ 22,510
Vested and exercisable 14,550  
Vested and expected to vest $ 16,964  
v3.26.1
Stock Plans - Narrative (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 6 Months Ended
Jan. 31, 2026
Apr. 30, 2021
Mar. 31, 2026
Jun. 06, 2026
Dec. 31, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
ESPP discount percent   85.00%      
ESPP, length of offering period   6 months      
Common stock reserved for future issuance (in shares)     8,470,788   7,126,700
Unrecognized stock-based compensation expense     $ 18.4    
Period for recognition     2 years 9 months 18 days    
2021 Employee Stock Purchase Plan          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Common stock reserved for future issuance (in shares)   580,000      
Shares authorized (in shares) 335,747        
Number of shares available for grant (in shares)     985,778    
Period for recognition     2 months 12 days    
Cost not yet recognized, amount     $ 0.1    
2021 Employee Stock Purchase Plan | Forecast          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Offering period       6 months  
v3.26.1
Stock Plans - Schedule of Restricted Stock Units (Details) - Unvested RSUs
3 Months Ended
Mar. 31, 2026
$ / shares
shares
Number of Shares Underlying Outstanding RSUs  
Unvested, beginning balance (in shares) | shares 1,177,836
Granted (in shares) | shares 356,357
Vested (in shares) | shares (305,646)
Cancelled (in shares) | shares (10,436)
Unvested, ending balance (in shares) | shares 1,218,111
Weighted Average Grant Date Fair Value  
Unvested, beginning balance (in dollars per share) | $ / shares $ 11.42
Granted (in dollars per share) | $ / shares 13.60
Vested (in dollars per share) | $ / shares 9.16
Cancelled (in dollars per share) | $ / shares 12.45
Unvested, ending balance (in dollars per share) | $ / shares $ 12.62
v3.26.1
Stock Plans - Schedule of Recognized Stock-based Compensation (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Total stock-based compensation $ 2,278 $ 2,626
Cost of goods sold    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Total stock-based compensation 138 178
Sales and marketing    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Total stock-based compensation 595 783
Research and development    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Total stock-based compensation 713 872
General and administrative    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Total stock-based compensation $ 832 $ 793
v3.26.1
Income Taxes (Details) - USD ($)
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Income Tax Disclosure [Abstract]    
Income tax expense (benefit) $ 0 $ 0
v3.26.1
Net Loss per Share Attributable to Common Stockholders - Schedule of Computation of Basic and Diluted Net Loss Per Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Numerator:    
Net loss attributable to common stockholders $ (6,689) $ (6,589)
Denominator:    
Weighted-average common stock outstanding used to compute basic net loss per share (in shares) 33,716,813 31,480,911
Weighted-average common stock outstanding used to compute diluted net loss per share (in shares) 33,716,813 31,480,911
Net loss per share attributable to common stockholders, basic (in dollars per share) $ (0.20) $ (0.21)
Net loss per share attributable to common stockholders, diluted(in dollars per share) $ (0.20) $ (0.21)
v3.26.1
Net Loss per Share Attributable to Common Stockholders - Schedule of Potentially Dilutive Securities Outstanding (Details) - shares
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Total shares (in shares) 3,837,687 4,369,277
Options to purchase common stock    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Total shares (in shares) 2,557,173 2,553,690
Unvested RSUs    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Total shares (in shares) 1,218,111 1,746,958
Shares committed under ESPP    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Total shares (in shares) 62,403 68,629
v3.26.1
Segment Information - Additional Information (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2026
USD ($)
segment
Mar. 31, 2025
USD ($)
Revenue, Major Customer [Line Items]    
Number of operating segments | segment 1  
Number of reportable segments | segment 1  
Revenue | $ $ 22,068 $ 22,524
Non-US    
Revenue, Major Customer [Line Items]    
Revenue | $ $ 700 $ 100
v3.26.1
Subsequent Events - Narrative (Details) - DIXI Medical USA Corp - USD ($)
$ in Millions
1 Months Ended
May 12, 2026
Mar. 31, 2026
Subsequent Event [Line Items]    
Product inventory   $ 0.4
Subsequent Event    
Subsequent Event [Line Items]    
Product inventory $ 0.3  
Product inventory returned $ 0.1  
v3.26.1
Subsequent Events - Schedule of Activity of Discontinued Operations (Details) - Discontinued Operations, Disposed of by Sale - DIXI Medical - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Subsequent Event [Line Items]    
Revenue $ 65 $ 4,203
Cost of goods sold 28 1,992
Gross profit 37 2,211
Sales and marketing 0 598
Income from DIXI Distribution Agreement $ 37 $ 1,613