iRhythm Holdings, Inc.
For the period ended Sep 30, 2026. Filed Nov 5, 2026.
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Sep 30, 2026 · Filed Nov 5, 2026
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Notes to Condensed Consolidated Financial Statements
Notes to the Unaudited Condensed Consolidated Financial Statements
- ORGANIZATION AND DESCRIPTION OF BUSINESS
iRhythm Technologies, Inc. was incorporated in the state of Delaware in September 2006. On January 12, 2026, iRhythm Technologies, Inc. implemented a corporate holding company structure that resulted in the formation of a new parent holding company (the “Holding Company Transaction”) pursuant to an Agreement and Plan of Merger and Reorganization (the “Merger Agreement”), dated as of January 12, 2026, by and among iRhythm Technologies, Inc., iRhythm Holdings, Inc., a Delaware corporation (the "Company”), and LTCM Merger Sub, Inc., a Delaware corporation and a then-direct, wholly-owned subsidiary of the Company (“Merger Sub”). Pursuant to the terms of the Merger Agreement, Merger Sub merged with and into iRhythm Technologies, Inc., with iRhythm Technologies, Inc. continuing as the surviving corporation and a wholly-owned subsidiary of the Company (the “Merger”). Following the Merger, the Company became the successor issuer and registrant to iRhythm Technologies, Inc., and had, on a consolidated basis, the same assets, business operations, executive officers and directors that existed prior to the Merger. The Merger was accounted for as a reorganization of entities under common control. Accordingly, the condensed consolidated financial statements of the Company reflect the Merger as if it had occurred at the beginning of the earliest period presented.
The Company is a leading digital healthcare company that creates trusted solutions that detect, predict, and prevent disease. The Company's principal business is the design, development, and commercialization of device-based technology to provide ambulatory cardiac monitoring ("ACM") services that it believes allow clinicians to diagnose certain arrhythmias quicker and with greater efficiency than other services that rely on traditional technology.
Since first receiving clearance from the U.S. Food and Drug Administration (“FDA”) for the Company's technology in 2009, the Company has supported physician and patient use of its technology and provided ACM services from its Medicare-enrolled independent diagnostic testing facilities (“IDTFs”) and with its qualified technicians. The Company has provided the Zio ACM services, including long-term continuous monitoring (“LTCM”) services (the “Zio LTCM Service”), short-term continuous monitoring services, and mobile cardiac telemetry (“MCT”) monitoring services (the “Zio MCT Service” and collectively with the Zio LTCM Service, the “iRhythm Services”), using a proprietary system that combines an FDA-cleared and CE-marked wire-free, patch-based, 14-day wearable biosensor that continuously records ECG data, with a proprietary FDA-cleared, CE-marked, Japan Pharmaceutical and Medical Device Agency ("PMDA") approved cloud-based data analytic software to help physicians monitor patients and diagnose arrhythmias (collectively, the “iRhythm ACM System”). The iRhythm Services are medical procedures typically ordered by physicians for patients not suspected of having life-threatening arrhythmias, but who are suspected of having infrequent, difficult-to-detect, or asymptomatic arrhythmias.
The Company is headquartered in San Francisco, California, which also serves as a clinical center. The Company has additional clinical centers in Deerfield, Illinois, Houston, Texas, and Manila, Philippines, a manufacturing facility in Cypress, California and corporate office spaces in Solana Beach, California and London, United Kingdom.
- SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Basis of Presentation
The accompanying unaudited condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries, and have been prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (the “SEC”) regarding interim financial reporting. As permitted under those rules, the condensed consolidated financial statements and related disclosures as of December 31, 2025, have been derived from the audited consolidated financial statements but do not include all of the information required by U.S. GAAP for complete consolidated financial statements. These unaudited condensed consolidated financial statements have been prepared on the same basis as the Company’s annual consolidated financial statements and, in the opinion of management, reflect all adjustments (consisting only of normal recurring adjustments) that are necessary for the fair statement of the Company’s unaudited condensed consolidated financial information. The results of operations for the three and nine months ended September 30, 2026, are not necessarily indicative of the results to be expected for the year ending December 31, 2026, or for any other interim period or for any other future year.
The accompanying unaudited condensed consolidated financial statements and related financial information should be read in conjunction with the audited financial statements and the related notes thereto for the year ended December 31, 2025, included in the Company’s Annual Report on Form 10-K, filed with the SEC on February 19, 2026 (the "Annual Report").
Risks and Uncertainties
Macroeconomic Factors and Supply Chain Constraints
The Company’s operations and performance may vary based on worldwide economic and political conditions, which have been adversely impacted by continued global economic uncertainty, political instability, and military hostilities in multiple geographies including ongoing geopolitical conflicts, such as the wars in Ukraine and Iran and conflicts in the Middle East and Venezuela, domestic and global inflationary trends, interest rate volatility, uncertainty with respect to the federal debt ceiling and budget and potential government shutdowns related thereto, potential instability in the global banking system, global supply shortages or disruptions, commodity price increases, tariffs on imports, and a tightening labor market. A severe or prolonged economic downturn or period of global political instability could drive hospitals and other healthcare professionals to tighten budgets and curtail spending, which could in turn negatively impact rates at which physicians prescribe iRhythm Services. In addition, higher unemployment rates or reductions in employer-provided benefits plans could result in fewer commercially insured patients, resulting in a reduction in the Company’s margins and impairing the ability of uninsured patients to make timely payments. A weak or declining economy, or uncertainty surrounding tariffs, could also strain the Company’s suppliers, possibly resulting in supply delays and disruptions. There is also a risk that one or more of the Company’s current service providers, suppliers, or other partners may not survive such difficult economic times, which could directly affect the Company’s ability to attain its goals on schedule and on budget. If the current equity and credit markets deteriorate, it may make any necessary debt or equity financing more difficult, more costly, and more dilutive. The Company cannot predict the timing, strength, or duration of an economic downturn, instability, or recovery, whether worldwide, in the United States, or within its industry.
The Company's hybrid work arrangements and decision to pursue a sublease for its leased San Francisco headquarters have previously resulted in impairments of its right-of-use ("ROU") asset and related leasehold improvements and furniture and fixtures. As the Company continues to evaluate its global real estate footprint, the Company may incur additional impairment charges related to real property lease agreements.
The Company is continuously reviewing its liquidity and anticipated capital requirements. The Company believes it has adequate liquidity over the next 12 months to operate its business and to meet its cash requirements. The Company is in compliance with its convertible debt requirements.
Reimbursement
The Company receives revenue for the iRhythm Services primarily from third-party payors, which include commercial payors and government agencies, such as the Centers for Medicare & Medicaid Services (“CMS”). Third-party payors require the Company to identify the service for which it is seeking reimbursement by using a Current Procedural Terminology (“CPT”) code set maintained by the American Medical Association. These CPT codes are subject to periodic change and update, which will impact the reimbursement rates for the Company’s iRhythm Services.
Based on relative value units, CMS annually updates the reimbursement rates for diagnostic tests performed by IDTFs via the Medicare Physician Fee Schedule. CMS establishes national payment rates for the CPT codes the Company uses to report iRhythm Services performed by the Company. Because remote cardiac monitoring technology, including the iRhythm ACM System, is rapidly evolving, there is a continuing risk that relative value units assigned, and reimbursement rates set, by CMS may not adequately reflect the value and expense of this technology and associated monitoring services, and CMS may reduce these rates in the future, which would adversely affect the Company’s financial results.
Third-party payors globally are increasingly challenging the utilization and overall cost for medical products and services. The containment of healthcare costs has become a priority of governments on a global basis. Third-party payors may decline to cover and reimburse claims or portions of claims.
Use of Estimates
The preparation of the unaudited condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the periods presented. On an ongoing basis, management evaluates its estimates, including those related to revenue recognition, contractual allowances, provision for credit losses, the useful lives of property and equipment, the recoverability of long-lived assets, including the estimated usage of the printed circuit board assemblies (“PCBAs”), the incremental borrowing rate for operating leases, fair value of strategic loan investments, accounting for income taxes, impairment of ROU assets, contingent consideration liabilities, and various inputs used in estimating stock-based compensation. Actual results may differ from those estimates.
Significant Accounting Policies
During the nine months ended September 30, 2026, there were no changes to the Company’s significant accounting policies as described in the Annual Report.
Concentrations of Risk
Credit Risk
Financial instruments that potentially subject the Company to a concentration of credit risk consist primarily of cash and cash equivalents, investments and accounts receivable. Cash balances are deposited in financial institutions which, at times, may be in excess of federally insured limits. Cash equivalents are invested in highly rated money market funds. The Company invests in a variety of financial instruments, such as, but not limited to, U.S. government securities, corporate notes, commercial paper and, by policy, limits the amount of credit exposure with any one financial institution or commercial issuer. The Company has not experienced any material losses on its deposits of cash and cash equivalents or investments.
Concentrations of credit risk with respect to accounts receivable are limited due to the large number of customers comprising the Company’s customer base and their dispersion across many geographies. The Company does not require collateral.
The Company records a provision for credit losses based on the assessment of the collectability of customer accounts, considering factors such as historical experience, credit quality, the age of the accounts receivable balances, and current economic conditions that may affect a customer’s ability to pay.
The following table summarizes customers' accounts receivable concentration representing 10% or more of the Company’s accounts receivable, net:
| Payor Type | September 30, 2026 | December 31, 2025 | |
|---|---|---|---|
| CMS | Centers for Medicare & Medicaid Services | 20% | 14% |
| Customer A | Healthcare institutions | 19% | 15% |
| Customer B | Contracted third-party payors | <10% | 12% |
Supply Risk
The Company relies on single-source vendors to supply some of its disposable housings, instruments and other materials used to manufacture the Zio patches and the adhesive that binds the Zio patch to a patient’s body. These components and materials are critical, and there could be a considerable delay in finding alternative sources of supply if these vendors become unavailable.
Recently adopted accounting pronouncements
There were no new material accounting standards adopted in the three and nine months ended September 30, 2026.
Recently issued accounting pronouncements not yet adopted
In November 2024, the FASB issued ASU 2024-03, Income Statement-Reporting Comprehensive Income-Expense Disaggregation Disclosures, which requires disclosure about the types of costs and expenses included in certain expense captions presented on the income statement. The new disclosure requirements are effective for the Company’s annual periods beginning after December 15, 2026, and interim periods beginning after December 15, 2027, with early adoption permitted. The Company is currently evaluating the impact that the adoption of this new standard may have on the Company's related disclosures.
In September 2025, the FASB issued ASU 2025-06, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software, to modernize the accounting for software costs. The new guidance amends the existing standard that refers to various stages of a software development project to align better with the current software development methods, such as agile programming. The ASU is effective for annual reporting periods beginning after December 15, 2027, and interim periods within those annual reporting periods, with early adoption permitted. The ASU may be applied on either a prospective or a retrospective basis. The Company is currently evaluating the impact that the adoption of this new standard may have on the Company's consolidated financial statements and related disclosures.
In December 2025, the FASB issued ASU 2025-11 Interim Reporting (Topic 270)related to interim disclosure requirements. The amendments in this update clarify current interim disclosure requirements and provide a comprehensive list of required interim disclosures. The update also incorporates a disclosure principle that requires entities to disclose material events that occur after the end of the last annual reporting period. This update is effective for interim periods within annual periods beginning after December 15, 2027, though early adoption is permitted. The Company is currently evaluating the impact that the adoption of this new standard may have on the Company's consolidated financial statements and related disclosures.
- BUSINESS SEGMENT AND REVENUE
Reportable Segments
Operating segments are defined as components of an enterprise where separate financial information is evaluated regularly by the chief operating decision maker (“CODM”). The Company hasone reportable andone operating segment, its global ACM business. The Company’s Chief Executive Officer, who is the Company’s CODM, reviews financial information presented on a consolidated basis for purposes of making operating decisions, allocating resources, and assessing financial performance.
The key measure of the Company's segment profit or loss is consolidated net loss, which is reported on the Company's unaudited condensed consolidated statements of operations. Consolidated net loss is used to measure actual results versus expectations. The measure of segment assets is reported on the unaudited condensed consolidated balance sheets as total assets.
Significant segment expenses within loss from operations, as well as within net loss, include cost of revenue, research and development, acquired in-process research and development ("IPR&D"), selling, general and administrative expenses, litigation settlements, and impairment charges which are each separately presented on the Company’s unaudited condensed consolidated statements of operations. Other segment items within net loss include interest and other income, net, and income tax provision.
Disaggregation of Revenue
The Company disaggregates revenue from contracts with customers by payor type. The Company believes these categories aggregate the payor types by nature, amount, timing and uncertainty of its revenue streams. Disaggregated revenue by payor type for the three and nine months ended September 30, 2026, and 2025 were as follows (in thousands, except percentages):
| Three Months Ended September 30, · Nine Months Ended September 30, | ||||||||
|---|---|---|---|---|---|---|---|---|
| 2026 | 2025 | 2026 | 2025 | |||||
| Amount | % of Revenue | Amount | % of Revenue | Amount | % of Revenue | Amount | % of Revenue | |
| Contracted third-party payors | $110,789 | 50% | $99,014 | 51% | $331,377 | 52% | $280,535 | 52% |
| Centers for Medicare & Medicaid Services | 57,249 | 26% | 47,564 | 25% | 167,187 | 26% | 130,157 | 24% |
| Healthcare institutions | 37,426 | 17% | 32,791 | 17% | 105,363 | 16% | 91,295 | 17% |
| Non-contracted third-party payors | 16,128 | 7% | 13,515 | 7% | 41,227 | 6% | 36,261 | 7% |
| $221,592 | $192,884 | $645,154 | $538,248 | |||||
Revenue generated from the United States comprised substantially all of the Company's revenue. No other country or customer, with the exception of CMS, comprised 10% or greater of the Company's revenue during the three and nine months ended September 30, 2026 and 2025.
Accounts Receivable, Provision for Credit Losses and Contractual Allowances
Accounts receivable includes amounts due to the Company from healthcare institutions, third-party payors, and government payors and their related patients, as a result of the Company's normal business activities. Accounts receivable is reported on the unaudited condensed consolidated balance sheets net of an estimated provision for credit losses and contractual allowances.
The Company establishes a provision for credit losses for estimated uncollectible receivables based on its assessment of the collectability of customer accounts and recognizes the provision as a component of selling, general and administrative expenses. The Company records a provision for contractual allowances, as a reduction of revenue, based on the estimated differences between contracted amounts and expected collection rates for services performed. Such provisions are based on the Company's historical experience and expected future claims denials. The Company updates the estimate for this provision each reporting period.
The Company regularly reviews the allowances by considering factors such as historical experience, credit quality, the age of the accounts receivable balances, reasonable and supportable forecasts, and current economic conditions that may affect a customer’s ability to pay.
The following table presents the changes in the allowance for credit losses (in thousands):
| Nine Months EndedSeptember 30, 2026 | Year EndedDecember 31, 2025 | Nine Months EndedSeptember 30, 2025 | |
|---|---|---|---|
| Balance, beginning of period | $14,635 | $16,248 | $16,248 |
| Add: Provision for credit losses | 26,437 | 30,835 | 24,843 |
| Less: Write-offs | (22,452) | (32,448) | (25,459) |
| Balance, end of period | $18,620 | $14,635 | $15,632 |
The following table presents the changes in the contractual allowance (in thousands):
| Nine Months EndedSeptember 30, 2026 | Year EndedDecember 31, 2025 | Nine Months EndedSeptember 30, 2025 | |
|---|---|---|---|
| Balance, beginning of period | $48,926 | $50,961 | $50,961 |
| Add: Provision for contractual adjustments | 57,679 | 68,831 | 55,318 |
| Less: Contractual adjustments | (55,616) | (70,866) | (49,405) |
| Balance, end of period | $50,989 | $48,926 | $56,874 |
Contract Liabilities
ASC 606, Revenue from Contracts with Customers, requires an entity to present a revenue contract as a contract liability when the Company has an obligation to transfer goods or services to a customer for which the Company has received consideration from the customer, or an amount of consideration from the customer is due and unconditional (whichever is earlier).
Certain of the Company’s customers pay the Company directly for the Zio LTCM Service upon patient registration or shipment of devices. Such advance payments are recognized as deferred revenue and are recorded as revenue when Zio reports are delivered to the healthcare provider. During the nine months ended September 30, 2026 and 2025, $4.1 million and $2.9 million related to the contract liability balance at the beginning of 2026 and 2025 was recognized as revenue, respectively. The deferred revenue liability was $4.7 million and $4.2 million as of September 30, 2026 and December 31, 2025, respectively.
Contract Costs
Under ASC 340, Other Assets and Deferred Costs (“ASC 340”), the incremental costs of obtaining a contract with a customer are recognized as an asset. Incremental costs of obtaining a contract are those costs that an entity incurs to obtain a contract with a customer that it would not have incurred if the contract had not been obtained.
The Company maintains short-term sales incentive compensation programs. As a practical expedient, ASC 340 permits the Company to immediately expense contract acquisition costs, because the asset that would have resulted from capitalizing these costs will be amortized in one year or less.
- CASH EQUIVALENTS AND MARKETABLE SECURITIES
The fair value of cash equivalents and marketable securities as of September 30, 2026, and December 31, 2025, were as follows (in thousands):
| September 30, 2026 | ||||
|---|---|---|---|---|
| AmortizedCost · Gross Unrealized · Fair Value | ||||
| Gains · Losses | ||||
| Money market funds | $301,133 | $— | $— | $301,133 |
| U.S. government securities | 166,398 | — | (397) | 166,001 |
| Total cash equivalents and marketable securities | $467,531 | $— | $(397) | $467,134 |
| Classified as: | ||||
| Cash equivalents | $301,133 | |||
| Marketable securities available for sale | 166,001 | |||
| Total cash equivalents and marketable securities | $467,134 | |||
| December 31, 2025 | ||||
| AmortizedCost · Gross Unrealized · Fair Value | ||||
| Gains · Losses | ||||
| Money market funds | $142,423 | $— | $— | $142,423 |
| U.S. government securities | 347,467 | 285 | (1) | 347,751 |
| Total cash equivalents and marketable securities | $489,890 | $285 | $(1) | $490,174 |
| Classified as: | ||||
| Cash equivalents | $142,423 | |||
| Marketable securities available for sale | 347,751 | |||
| Total cash equivalents and marketable securities | $490,174 | |||
- FAIR VALUE MEASUREMENTS
Assets and Liabilities Measured at Fair Value on a Recurring and Non-Recurring Basis
The Company discloses and recognizes the fair value of its assets and liabilities using a hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in an orderly transaction between market participants at the reporting date. The hierarchy gives the highest priority to valuations based upon unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to valuations based upon unobservable inputs that are significant to the valuation (Level 3 measurements). The guidance establishes three levels of the fair value hierarchy as follows:
Level 1—Inputs are unadjusted quoted prices in active markets for identical assets or liabilities at the measurement date.
Level 2—Inputs (other than quoted market prices included in Level 1) are either directly or indirectly observable for the asset or liability through correlation with market data at the measurement date and for the duration of the instrument’s anticipated life.
Level 3—Inputs reflect management’s best estimate of what market participants would use in pricing the asset or liability at the measurement date. Consideration is given to the risk inherent in the valuation technique and the risk inherent in the inputs to the model.
Assets and liabilities measured at fair value are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires management to make judgments and consider factors specific to the asset or liability. The U.S. government securities are classified as Level 2 as they were valued based upon quoted market prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-based valuation techniques for which all significant inputs are observable in the market or can be corroborated by observable market data for substantially the full term of the assets.
The Company had no transfers between levels of the fair value hierarchy of its assets and liabilities measured at fair value.
The following tables present the fair value of the Company’s financial assets determined using the inputs defined above (in thousands):
| September 30, 2026 | ||||
|---|---|---|---|---|
| Level 1 | Level 2 | Level 3 | Total | |
| Assets | ||||
| Money market funds | $301,133 | $— | $— | $301,133 |
| U.S. government securities | — | 166,001 | — | 166,001 |
| Strategic investments | — | — | 74,514 | 74,514 |
| Total | $301,133 | $166,001 | $74,514 | $541,648 |
| Liabilities | ||||
| Contingent consideration | — | — | 21,305 | 21,305 |
| Total | $— | $— | $21,305 | $21,305 |
| December 31, 2025 | ||||
|---|---|---|---|---|
| Level 1 | Level 2 | Level 3 | Total | |
| Assets | ||||
| Money market funds | $142,423 | $— | $— | $142,423 |
| U.S. government securities | — | 347,751 | — | 347,751 |
| Strategic investments | — | — | 69,913 | 69,913 |
| Total | $142,423 | $347,751 | $69,913 | $560,087 |
| Liabilities | ||||
| Contingent consideration | — | — | 20,407 | 20,407 |
| Total | $— | $— | $20,407 | $20,407 |
Fair Value of Strategic Investments
The Company holds both strategic loan and equity investments in privately held companies, and as such, limited information is available. On a quarterly basis, the Company monitors information that becomes available and adjusts the carrying values of these investments if there are identified events or changes in circumstances that have a significant effect on their fair values. The change in fair value is recorded within other income, net in the Company’s unaudited condensed consolidated statements of operations.
The aggregate carrying amount of the Company's strategic investments was comprised of the following (in thousands):
| September 30, 2026 | December 31, 2025 | |
|---|---|---|
| Long-term strategic investments | ||
| Strategic loan investments | $66,165 | $66,064 |
| Strategic equity investments | 8,349 | 3,849 |
| Total | $74,514 | $69,913 |
| Short-term strategic investments (within other current assets) | ||
| Strategic loan investments | $500 | $— |
| Total | $75,014 | $69,913 |
The following table sets forth the changes in the estimated fair value of the Company's strategic investments (in thousands):
| Nine Months EndedSeptember 30, 2026 | Year EndedDecember 31, 2025 | Nine Months EndedSeptember 30, 2025 | |
|---|---|---|---|
| Balance, beginning of period | $69,913 | $61,902 | $61,902 |
| Additions during the period | 2,000 | 2,300 | 2,300 |
| Changes in estimated fair value | 3,101 | 5,711 | 3,889 |
| Balance, end of period | $75,014 | $69,913 | $68,091 |
Strategic Loan Investments
The Company elected to apply the fair value option to the strategic loan investments. During the three and nine months ended September 30, 2026, the fair value of the strategic loan investments increased by $0.8 million and $2.5 million, respectively. During the three and nine months ended September 30, 2025, the Company increased the fair value of the strategic loan investments by $0.9 million and $3.8 million, respectively.
During the year ended December 31, 2024, the Company made an aggregate of $55.0 million strategic loan investments in BioIntelliSense, Inc. (“BioIS”), a privately held company. The aggregate fair value of the BioIS strategic loan investments is $66.2 million and $63.7 million as of September 30, 2026 and December 31, 2025, respectively. The fair value of the loan investments in BioIS is determined by using a probability-weighted expected return model (“PWERM”) and a discounted cash flow valuation model with scenarios that correspond to the contractual settlement events. The remaining strategic loan investments are comprised of individually immaterial investments.
The following table sets forth the recurring Level 3 fair value measurements of the loan investments including the significant unobservable inputs:
| September 30, 2026 | December 31, 2025 | |
|---|---|---|
| Discount rate | 10.8% | 10.8% |
| Equity volatility | 85.0% | 85.0% |
| Expected years (range) | 2026-2029 | 2026-2029 |
Strategic Equity Investments
The Company measures the fair value for strategic equity investments based on cost, less impairment, if any, and adjusts for changes in observable price changes in orderly transactions for identical or similar investments of the same issuer. During the three and nine months ended September 30, 2026, the Company increased the fair value of the strategic equity investments bynil and $0.6 million, respectively. During the three and nine months ended September 30, 2025, the Company recognizedno increase in the fair value of its strategic equity investments.
Contingent Consideration Liabilities
The Company established contingent consideration liabilities in conjunction with the development milestones associated with the acquisition of certain technology from BioIS. The fair value of contingent consideration liabilities is determined using PWERM, with scenarios that correspond to the contractual settlement events. There are significant inputs of such model that are not observable in the market, such as probability of achievement of stated milestones and expected term. The unobservable inputs represent a Level 3 measurement. Fair value adjustments to contingent consideration liabilities are assessed quarterly and recorded through operating expenses within acquired in-process research and development in the unaudited condensed consolidated statements of operations. Refer to Note 7, Commitments and Contingencies, for further details relating to the BioIS contingent consideration liabilities.
The following table sets forth the recurring Level 3 fair value measurements of contingent consideration liabilities associated with the development agreement milestones including the significant unobservable inputs:
| September 30, 2026 | December 31, 2025 | |
|---|---|---|
| Probability of achievement (range) | 79% - 100% | 79.0% - 100.0% |
| Expected years | 2026 | 2026 |
Contingent consideration liabilities for BioIS at the inception of acquisition of the licensed technology were $17.0 million. Contingent consideration liabilities are included in accrued liabilities in the Company's unaudited condensed consolidated balance sheets. The following table sets forth the changes in the estimated fair value of the Company’s contingent consideration liabilities measured on a recurring basis (Level 3) (in thousands):
| Nine Months EndedSeptember 30, 2026 | Year EndedDecember 31, 2025 | |
|---|---|---|
| Balance, beginning of period | $20,407 | $17,371 |
| Additions during the period | — | — |
| Changes in estimated fair value | 898 | 3,036 |
| Balance at end of period | $21,305 | $20,407 |
Fair Value of Senior Convertible Notes
The fair value, based on a quoted market price (Level 1), of the Company’s unsecured senior convertible notes with a stated interest rate of 1.50% due September 1, 2029 (the “2029 Notes”) is as follows (in thousands):
| September 30, 2026 | December 31, 2025 | |
|---|---|---|
| Senior Convertible Notes due 2029 | $704,876 | $924,097 |
- BALANCE SHEET COMPONENTS
Inventory
Inventory consisted of the following (in thousands):
| September 30, 2026 | December 31, 2025 | |
|---|---|---|
| Raw materials and work-in-progress | $9,643 | $10,645 |
| Finished goods | 13,579 | 10,989 |
| Total | $23,222 | $21,634 |
Prepaid Expenses and Other Current Assets
Prepaid expenses and other current assets consisted of the following (in thousands):
| September 30, 2026 | December 31, 2025 | |
|---|---|---|
| Insurance recoveries receivable (see Note 7) | $36,875 | $— |
| Prepaid expenses | 11,417 | 12,796 |
| Interest receivable | 1,649 | 3,016 |
| Other | 5,202 | 5,850 |
| Total | $55,143 | $21,662 |
Other Assets
Other assets consisted of the following (in thousands):
| September 30, 2026 | December 31, 2025 | |
|---|---|---|
| PCBAs | $45,571 | $39,026 |
| Cloud computing arrangements | 5,019 | 3,998 |
| Other | 12,299 | 1,694 |
| Total | $62,889 | $44,718 |
The Company reuses PCBAs in each wearable Zio monitor, Zio XT, and Zio AT, as well as the wireless gateway used in conjunction with Zio AT. As PCBAs are used in each wearable Zio monitor, Zio XT, and Zio AT, a portion of the cost of the PCBA is recorded as a cost of revenue. Charges to cost of revenue were $6.1 million and $17.7 million for the three and nine months ended September 30, 2026, respectively, and $4.7 million and $11.5 million for the three and nine months ended September 30, 2025, respectively. During the nine months ended September 30, 2026, PCBAs increased by $6.5 million primarily driven by additional purchases for Zio monitor and Zio AT to support the growth in commercial volumes.
The Company recorded $0.6 million and $2.1 million of amortization expense during the three and nine months ended September 30, 2026, respectively, and $0.7 million and $1.9 million during the three and nine months ended September 30, 2025, respectively, related to capitalized implementation costs in the Company's cloud computing arrangements.
Property and Equipment, Net
Property and equipment, net consisted of the following (in thousands):
| Useful life | September 30, 2026 | December 31, 2025 | |
|---|---|---|---|
| Laboratory and manufacturing equipment | 2 to 7 | $18,709 | $17,623 |
| Computer equipment and software | 3 | 5,340 | 4,232 |
| Furniture and fixtures | 2 to 5 | 4,180 | 4,180 |
| Leasehold improvements | 3 to 12 | 28,966 | 28,975 |
| Internal-use software in service | 3 to 7 | 101,681 | 91,763 |
| Internal-use software in development | — | 113,924 | 88,950 |
| Construction in progress | — | 10,917 | 7,068 |
| Total property and equipment, gross | 283,717 | 242,791 | |
| Less: Accumulated depreciation and amortization | (106,779) | (91,192) | |
| Total property and equipment, net | $176,938 | $151,599 |
Depreciation and amortization expense for the three and nine months ended September 30, 2026 was $5.3 million and $15.6 million, respectively, and $5.2 million and $15.5 million for the three and nine months ended September 30, 2025, respectively, of which amortization related to internal-use software was $3.5 million and $10.2 million for the three and nine months ended September 30, 2026, respectively, and $3.5 million and $11.0 million for the three and nine months ended September 30, 2025, respectively.
During the three and nine months ended September 30, 2026, internal-use software, both in service and in development, increased by $12.4 million and $34.9 million, respectively. This increase related to enhancements in the Company’s core technology, products and services and artificial intelligence, as well as investment in future technology.
During the three and nine months ended September 30, 2026, the Company recorded an impairment charge of $0.7 million within impairment charges in the Company’s unaudited condensed consolidated statements of operations related to capitalized internal-use software in development not intended to be placed in-service. During the three and nine months ended September 30, 2025, the Company recorded an impairment charge ofnil and $2.5 million, respectively, within impairment charges in the Company’s unaudited condensed consolidated statements of operations related to internal-use software in development not expected to be completed and placed in-service. Refer to Note 7, Commitments and Contingencies, for further details relating to the impairment charge recognized during the three and nine months ended September 30, 2025.
Accrued Liabilities
Accrued liabilities consisted of the following (in thousands):
| September 30, 2026 | December 31, 2025 | |
|---|---|---|
| Accrued payroll and related expenses | $48,580 | $67,809 |
| Accrued vacation | 8,237 | 7,906 |
| Accrued expenses | 18,007 | 20,464 |
| Claims payable | 734 | 1,542 |
| Accrued employee share purchase plan contributions | 2,189 | 662 |
| Accrued income and other taxes | 1,361 | 1,817 |
| Accrued professional services fees | 22,217 | 8,140 |
| Contingent consideration liabilities | 21,305 | 20,407 |
| Litigation settlement liability (see Note 7) | 45,000 | — |
| Total accrued liabilities | $167,630 | $128,747 |
- COMMITMENTS AND CONTINGENCIES
Leases
The Company leases office, manufacturing, and clinical centers under non-cancelable operating leases which expire on various dates through 2033. These leases generally contain scheduled rent increases or escalation clauses and renewal options. Operating lease ROU assets and lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. The operating lease ROU assets also include any lease payments made to the lessor at or before the commencement date as well as variable lease payments which are based on a consumer price index. The Company is also subject to variable lease payments related to janitorial services and electricity which are not included in the operating lease ROU asset as they are based on actual usage. The Company recognizes operating lease expense, generally on a straight-line basis over the lease term.
During the nine months ended September 30, 2026, there were no material changes to the leases from those described in Note 8, Commitments and Contingencies, included in the Annual Report.
Contractual obligations under operating lease liabilities were as follows (in thousands):
| Year Ended December 31: | |
|---|---|
| 2026 (remainder of the year) | $4,241 |
| 2027 | 17,156 |
| 2028 | 17,406 |
| 2029 | 17,122 |
| 2030 | 17,613 |
| Thereafter | 15,266 |
| Total lease payments | 88,804 |
| Less: Imputed interest | (14,928) |
| Total lease liabilities | $73,876 |
Self-Insured Health Plan
As of January 1, 2025, the Company transitioned from a fully-insured health-benefit program to a self-insurance program to cover U.S. employees and their dependent health benefits. The Company maintains stop-loss insurance that limits its exposure to large claims. The Company records its liability associated with these benefits by utilizing a third-party actuarial specialist, that includes both an estimate of claims submitted and incurred but not yet reported based upon historical claims experience. The Company's accrued health benefits liability is $3.0 million and $2.6 million as of September 30, 2026 and December 31, 2025, respectively, which is included within accrued liabilities on the Company's unaudited condensed consolidated balance sheets.
Legal Proceedings
The Company is subject to various litigation, regulatory investigations, and other legal proceedings that arise in the ordinary course of its business. The Company is also subject to regulatory oversight by numerous regulatory and other governmental agencies, including at the federal and state levels and internationally. Such litigation, investigations and other legal proceedings could have an adverse impact on the Company's reputation, business, and financial condition and divert the attention of its management from the operation of its business. These matters are subject to many uncertainties and outcomes that are not predictable.
The Company reviews its lawsuits, regulatory investigations, and other legal proceedings on an ongoing basis and provides disclosure and recognizes loss contingencies in accordance with the loss contingencies accounting guidance. In accordance with such guidance, the Company establishes accruals for such matters when potential losses become probable and can be reasonably estimated. If the Company determines that a loss is reasonably possible and the loss or range of loss can be estimated, the Company discloses the possible loss in its consolidated financial statements.
On June 3, 2026, iRhythm Technologies entered into a binding Stipulation and Agreement of Settlement (the “Securities Settlement Agreement”) to fully resolve the putative class action securities litigation originally filed in the United States District Court for the Northern District of California in February 2024, and subsequently amended in July and October 2024, against the Company's wholly-owned subsidiary, iRhythm Technologies, Inc. ("iRhythm Technologies") and certain current and former officers of the Company and iRhythm Technologies, alleging violations of Sections 10(b) and 20(a) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) and Rule 10b-5 promulgated thereunder, and seeking unspecified damages purportedly sustained by the class. The Securities Settlement Agreement provides for a settlement payment of $45.0 million, inclusive of lead plaintiff’s attorneys' fees and litigation expenses in exchange for the complete dismissal with prejudice of the action and a release of all claims against the named defendants in connection with the action, without any admission of fault, liability, wrongdoing or damages by the defendants. The Company recorded a litigation settlement liability of $45.0 million as of September 30, 2026, which is included within accrued liabilities on the Company's unaudited condensed consolidated balance sheets. The Company is entitled to recover approximately $40.0 million related to litigation legal fee defense costs as well as the settlement liability under applicable insurance policies, which has been recorded within prepaid expenses and other current assets on the Company's unaudited condensed consolidated balance sheets. In August 2026, the Company and its insurance carriers funded an escrow settlement account for $45.0 million, of which the insurance carriers and the Company funded $35.0 million and $10.0 million, respectively, with the Company’s portion recorded as restricted cash – current within its unaudited condensed consolidated balance sheets. As of September 30, 2026, the Company incurred $8.7 million in litigation legal fee defense costs expected to be recovered through insurance, with a remaining amount of $31.3 million in settlement costs expected to be recovered through insurance, of which the Company has received $5.0 million in insurance recoveries. As a result, during the three and nine months ended September 30, 2026, the Company recorded litigation settlement expense, net of expected insurance recoveries, relating to the Securities Settlement Agreement of approximately $(0.2) million and $13.7 million, respectively, in the accompanying unaudited condensed consolidated statements of operations.
Certain of iRhythm Technologies' current and former directors and executives were named as defendants infour complaints filed as stockholder derivative actions in the United States District Court for the District of Delaware, the United States District Court for the Northern District of California, and the Delaware Court of Chancery. iRhythm Technologies is named as a nominal defendant in the complaints. The cases make similar allegations to those in the securities class action complaint described above and the parties are evaluating next steps in light of the settlement in the securities action.
On March 26, 2021, iRhythm Technologies received a grand jury subpoena from the U.S. Attorney’s Office for the Northern District of California requesting information related to communications with FDA and its products and services. On September 13, 2021, iRhythm Technologies received a second subpoena requesting additional information. On April 4, 2023, iRhythm Technologies received a Subpoena Duces Tecum from the Consumer Protection Branch, Civil Division of the U.S. Department of Justice (the “DOJ”), requesting production of various documents regarding iRhythm Technologies' products and services. The Company is cooperating fully on these matters.
On July 1, 2024, the DOJ filed with the United States District Court for the Northern District of California a Petition for Order to Show Cause and Application for Enforcement against iRhythm Technologies with respect to the production of certain documentary materials which iRhythm Technologies asserts are protected by legal privileges. On May 30, 2025, following a hearing on the issue, the District Court ordered iRhythm Technologies to disclose certain of the documents, finding that iRhythm Technologies had waived its asserted legal privileges. iRhythm Technologies has appealed the District Court's order to the Ninth Circuit Court of Appeals. On July 17, 2025, the Ninth Circuit Court of Appeals stayed the District Court's production order until the appeal is resolved. Briefing on the merits was completed on February 19, 2026 but oral argument has yet to be set. The Company intends to continue to defend iRhythm Technologies' privilege assertions over the documents at issue. Regardless of the outcome of the appeal or the potential disclosure of the documents at issue, it is not clear what, if any, action the DOJ may take following resolution of the dispute over legal privileges. In addition, on December 12, 2025, iRhythm Technologies received a civil investigative demand from DOJ’s Civil Division’s Commercial Litigation Branch seeking information and documents related to Zio AT and iRhythm Technologies' associated claims for reimbursement. On November 4, 2026, the Company met with the DOJ to discuss the status of the matters and to discuss potential resolution pathways. The Company has cooperated, and is continuing to cooperate, fully in connection with these DOJ matters.
On February 20, 2024, Welch Allyn, Inc. ("Welch Allyn"), a subsidiary of Baxter International, Inc. ("Baxter"), filed a lawsuit against iRhythm Technologies in the United States District Court for the District of Delaware, alleging that iRhythm Technologies’ Zio devices infringed certain of Welch Allyn's patents. iRhythm Technologies filed a response denying all allegations of patent infringement and asserted defenses including patent invalidity. On December 10, 2024, Bardy Diagnostics, Inc. (“BardyDx”), a subsidiary of Baxter, filed a lawsuit against iRhythm Technologies in the United States District Court for the District of Delaware, alleging that the Zio monitor infringed BardyDx's patents and iRhythm Technologies subsequently filed a response denying all allegations of patent infringement, asserted defenses including patent invalidity, and asserted patent infringement counterclaims alleging that BardyDx’s Carnation Ambulatory Monitor patch infringed iRhythm Technologies' patents. On July 31, 2026, iRhythm Technologies entered into a settlement and license agreement (the “Baxter Settlement Agreement”) with Baxter, Welch Allyn and BardyDx (collectively, the “Baxter Parties”), to resolve all outstanding patent litigation among the parties. Under the Baxter Settlement Agreement, the Company paid the Baxter Parties $50.0 million on July 31, 2026. The Baxter Settlement Agreement also provides each party and its affiliates with a worldwide, royalty-free, non-exclusive, fully paid-up license under the patents asserted in the litigation and other related patents and patent applications, in each case, to exploit products and services comprising or involving certain sensors used for cardiac monitoring. Except for the $50.0 million settlement payment, the Baxter Settlement Agreement does not require either party to pay royalties or other compensation. The Baxter Settlement Agreement also includes mutual covenants not to sue for six years from the effective date of the Baxter Settlement Agreement with respect to the exploitation of licensed products and services and mutual agreements not to challenge the licensed patents and patent applications, unless such licensed patents are enforced against the applicable party or its affiliates. During the three and nine months ended September 30, 2026, the Company recognized the $50.0 million settlement payment within Litigation settlements on the Company's unaudited condensed consolidated statements of operations.
In 2026, a total of seven putative class action lawsuits were filed in the U.S. District Court for the Northern District of California, San Francisco Division, alleging claims arising out of a cybersecurity incident in which a threat actor improperly obtained certain sensitive information of the Company maintained on certain third-party-hosted business applications. Two of the actions were filed against both iRhythm Holdings, Inc. and iRhythm Technologies, Inc., two of the actions were filed solely against iRhythm Holdings, Inc., and two of the actions were filed solely against iRhythm Technologies, Inc. The Company anticipates that all of the actions will be assigned to the same judge and that the court will consolidate the cases and appoint interim lead plaintiffs' counsel to promote judicial economy. The Company continues to evaluate the allegations, assess potential defenses, and determine the appropriate responsive pleadings. Based on the nature of the proceedings in these cases, the outcome of these matters remains uncertain and the Company cannot estimate the potential impact, if any, on its business or financial statements at this time.
Technology License Agreement
On August 30, 2024, the Company entered into a Technology License Agreement (as amended, the “License Agreement”) with BioIS, pursuant to which (i) the Company will receive a perpetual fully paid up license to certain of BioIS’ intellectual property, technology and products for research, development and commercialization of potential next generation products and services in certain fields of use, including (x) an exclusive license to develop and commercialize pulse oximetry, accelerometry, and trending non-invasive blood pressure technologies for use within the Company's ambulatory cardiac monitoring products and services, and (y) a limited, non-exclusive license to develop and commercialize products and services for use in unattended, home-based diagnostic testing and assessment of central and obstructive sleep apnea, and (ii) the Company and BioIS agreed to negotiate in good faith a supply agreement for pulse oximetry hardware.
Under the terms of the License Agreement, during the third quarter of 2024 the Company paid BioIS an upfront fee of $15.0 million in cash consideration in acceptance of the initial transfer of certain licensed technologies and data following the execution of the License Agreement. In connection with the License Agreement, the Company also purchased an aggregate of $40.0 million of convertible promissory notes from BioIS (the “Convertible Notes”), of which $20.0 million of the convertible promissory notes (“Milestone Notes”) were designated for satisfaction of the Company's regulatory milestone payment obligations. The Milestone Notes, plus accrued and unpaid interest, if any, shall be cancelled, if outstanding, upon the achievement of the regulatory milestones up through December 31, 2026.
In June 2025, BioIS achieved the first of two regulatory milestones. As of September 30, 2026, BioIS and the Company were in the process of completing all required contractual conditions in order to cancel $10.0 million in Milestone Notes plus accrued and unpaid interest. In October 2026, BioIS and the Company completed all of the required contractual conditions associated with $10.0 million in Milestone Notes plus accrued and unpaid interest, which will be recorded by offsetting contingent consideration liabilities with BioIS. During the three and nine months ended September 30, 2026, the Company recognized acquired IPR&D expense of $0.3 million and $0.9 million, respectively, in the Company's unaudited condensed consolidated statements of operations. During the three and nine months ended September 30, 2025, the Company recorded a charge of $0.3 million and $2.3 million, respectively.
Development Agreement
On September 3, 2019, the Company entered into a Development Collaboration Agreement with Verily Life Sciences LLC, an Alphabet company (“VLS”) and Verily Ireland Limited (“VIL” and together with VLS, “Verily”) (such Development Collaboration Agreement, as amended by Amendment No. 1 dated April 26, 2021 and Amendment No. 2 dated January 24, 2022, the “Development Agreement”). The Development Agreement involved joint development and production of intellectual property between the Company and Verily.
In August 2025, the Company and Verily mutually terminated the Development Agreement, subject to the Company's continued rights to a license to certain intellectual property associated with a mobile app developed under the Development Agreement. During the second quarter of 2025, the Company recorded an impairment charge of $2.5 million associated with capitalized internal-use software in development relating to the Zio Watch with the Company's clinically integrated ZEUS system.
Indemnifications
In the ordinary course of business, the Company enters into agreements pursuant to which it agrees to indemnify customers, vendors, lessors, business partners, and other parties with respect to certain matters, including losses arising out of the breach of such agreements, services to be provided by the Company, or from intellectual property infringement claims made by third parties. Pursuant to such agreements, the Company may indemnify, hold harmless and defend an indemnified party for losses suffered or incurred by the indemnified party. Some of the provisions will limit losses to those arising from third-party actions. In some cases, the indemnification will continue after the termination of the agreement. The maximum potential amount of future payments the Company could be required to make under these provisions is not determinable. The Company has also entered into indemnification agreements with its directors and officers that may require the Company to indemnify its directors and officers against liabilities that may arise by reason of their status or service as directors or officers to the fullest extent permitted by applicable law. The Company currently has directors’ and officers’ insurance. The Company has not incurred material costs to defend lawsuits or settle claims related to these indemnification provisions, and believes that the estimated fair value of these indemnification obligations is not material and it has not accrued any amounts for these obligations.
- DEBT
1.50% Senior Convertible Notes due 2029
The carrying amounts of the Company’s 2029 Notes were as follows (in thousands):
| September 30, 2026 | December 31, 2025 | |
|---|---|---|
| Principal amount | $661,247 | $661,250 |
| Unamortized debt issuance costs | (9,389) | (11,746) |
| Carrying amount of senior convertible notes due 2029 | $651,858 | $649,504 |
The following table summarizes the components of interest expense and the effective interest rate for the 2029 Notes for the periods shown (in thousands, except percentages):
| Three Months Ended September 30, | Nine Months Ended September 30, | |||
|---|---|---|---|---|
| 2026 | 2025 | 2026 | 2025 | |
| Contractual coupon interest | $2,535 | $2,535 | $7,522 | $7,522 |
| Amortized debt issuance costs | 763 | 746 | 2,360 | 2,310 |
| Total interest expense recognized on senior convertible notes due 2029 | $3,298 | $3,281 | $9,882 | $9,832 |
| Effective interest rate | 2.0% | 2.0% | 2.0% | 2.0% |
On March 7, 2024, the Company completed an offering of $661.3 million aggregate principal amount of the 2029 Notes. The proceeds include the full exercise of the option granted by the Company to the initial purchasers of the 2029 Notes to purchase up to an additional $86.3 million aggregate principal amount of notes. Interest on the 2029 Notes is payable semi-annually in arrears on March 1 and September 1 of each year, beginning on September 1, 2024. The net proceeds from the offering, after deducting initial purchasers’ discounts and costs directly related to the offering, were approximately $643.8 million. The initial conversion rate of the 2029 Notes is 6.7927 shares per $1,000 principal amount of notes, which is equivalent to a conversion price of approximately $147.22 per share, subject to adjustments. The 2029 Notes may be settled in cash, stock, or a combination thereof, solely at the Company's discretion.
The Company used net proceeds from the offering to purchase capped calls, as well as repayment of the Company's outstanding debt. In addition, the Company also used net proceeds from the offering to repurchase shares of the Company's common stock.
No principal payments are due on the 2029 Notes prior to maturity. Other than restrictions relating to certain fundamental changes and consolidations, mergers or asset sales and customary anti-dilution adjustments, the indenture relating to the 2029 Notes (the “Indenture”) includes customary terms and covenants, including certain events of default after which the 2029 Notes may be due and payable immediately. The Company uses the if-converted method for assumed conversion of the 2029 Notes to compute the weighted-average shares of common stock outstanding for diluted earnings per share, when applicable.
Conversion Rights at the Option of the Holders
Holders of the 2029 Notes who convert their notes in connection with a make-whole fundamental change (as defined in the Indenture) or convert their 2029 Notes called (or deemed called) for redemption in connection with any optional redemption are, under certain circumstances, entitled to an increase in the conversion rate. Additionally, in the event of a fundamental change (as defined in the Indenture), holders of the 2029 Notes may require the Company to repurchase for cash all or a portion of their notes at a price equal to 100% of the principal amount of notes, plus any accrued and unpaid interest to, but excluding, the repurchase date.
Holders of the 2029 Notes may convert all or a portion of their notes prior to the close of business on the business day immediately preceding June 1, 2029, in multiples of $1,000 principal amount, only under the following circumstances:
(1) during any calendar quarter commencing after the calendar quarter ending on June 30, 2024 (and only during such calendar quarter), if the last reported sale price of the Company's 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 of the 2029 Notes on each applicable trading day;
(2) during thefive business day period after anyfive consecutive trading day period (the “measurement period”) in which the trading price (as defined in the Indenture) per $1,000 principal amount of the 2029 Notes for each trading day of that measurement period was less than 98% of the product of the last reported sale price of the Company's common stock and the conversion rate of the 2029 Notes on such trading day;
(3) if the Company calls any or all 2029 Notes for redemption, at any time prior to the close of business on the scheduled trading day immediately preceding the redemption date, but only with respect to the 2029 Notes called (or deemed called) for redemption; or
(4) upon the occurrence of specified corporate events as specified in the Indenture.
On or after June 1, 2029, until 5:00 p.m., New York City time, on the second scheduled trading day immediately preceding September 1, 2029, holders of the notes may convert the 2029 Notes, in multiples of $1,000 principal amount, at their option regardless of the foregoing circumstances.
On January 12, 2026, the Company implemented the Holding Company Transaction. The Holding Company Transaction constituted a Merger Event as defined under the Indenture. The Holding Company Transaction did not constitute a Fundamental Change or a Make-Whole Fundamental Change as defined under the Indenture. As a result of the Holding Company Transaction, holders of the 2029 Notes had the right to exchange their 2029 Notes at any time up through March 4, 2026, the 35th trading day following the effective date of the Holding Company Transaction. During the three and nine months ended September 30, 2026, holders exchangednil and $3,000 principal amount of their 2029 Notes, respectively, which was settled in cash at the Company’s discretion.
On January 12, 2026, in connection with the Holding Company Transaction, the Company entered into a supplemental indenture to the Indenture (the “First Supplemental Indenture”) in order to (a) provide that (i) the right to convert each $1,000 principal amount of 2029 Notes into shares of iRhythm Technologies common stock was changed to a right to convert such principal amount of 2029 Notes into shares of the Company's common stock; (ii) iRhythm Technologies shall continue to have the right to determine the form of consideration to be paid or delivered, as the case may be, upon conversion of the 2029 Notes; (iii) any amount payable in cash upon conversion of the 2029 Notes in accordance with the Indenture shall continue to be payable in cash; (iv) any shares of common stock of iRhythm Technologies that iRhythm Technologies would have been required to deliver upon conversion shall instead be deliverable in shares of the Company's common stock; and (v) the Daily VWAP (as defined in the Indenture) shall be calculated based on the value of a share of the Company's common stock; and (b) provide for the full and unconditional guarantee by the Company of the obligations of iRhythm Technologies under the 2029 Notes and the Indenture.
Conversion Rights at the Company's Option
The Company may not redeem the 2029 Notes prior to September 5, 2027. On or after September 5, 2027 and prior to June 1, 2029, the Company may redeem at its option for cash all or any portion of the 2029 Notes, at the redemption price, if the last reported sale price of the Company's common stock has been at least 130% of the conversion price then in effect for at least 20 trading days (whether or not consecutive) during any 30 consecutive trading day period ending on, and including, the trading day immediately preceding the date on which the Company provides the redemption notice. The redemption price will be equal to 100% of the principal amount of the 2029 Notes, plus accrued and unpaid interest, if any, to, but excluding, the redemption date.
2029 Capped Call Transactions
On March 4, 2024, in connection with the offering of the 2029 Notes, the Company entered into privately negotiated capped call transactions (the “2029 Capped Calls”) with certain financial institutions. The 2029 Capped Calls will cover, subject to anti-dilution adjustments substantially similar to those applicable to the 2029 Notes, the number of shares of the Company's common stock that will initially underlie the 2029 Notes. The 2029 Capped Calls are expected generally to reduce potential dilution to the Company's common stock upon conversion of the 2029 Notes and/or offset any cash payments that the Company could be required to make in excess of the principal amount of converted 2029 Notes, as the case may be, with such reduction and/or offset subject to a cap. The 2029 Capped Calls have an initial cap price of $218.10 per share, subject to adjustments, which represents a premium of 100% over the closing price of the Company's common stock of $109.05 per share on The Nasdaq Global Select Market on March 4, 2024. The Company completed the purchase of the 2029 Capped Calls on March 7, 2024, for the amount of $72.4 million. The cost to purchase the 2029 Capped Calls was recorded as a reduction to additional paid-in capital in the Company's consolidated balance sheets, as the 2029 Capped Calls met the criteria for classification within stockholders’ equity.
- INCOME TAXES
The Company recordednil and $0.5 million of income tax provision related to its U.S. state taxes and foreign operations during the three and nine months ended September 30, 2026, respectively. The Company recorded animmaterial tax provision and a tax provision of $0.5 million related to its U.S. state taxes and its foreign subsidiaries during the three and nine months ended September 30, 2025, respectively. Due to the uncertainties surrounding the realization of the U.S. deferred tax assets through future taxable income, the Company has provided a full valuation allowance and, therefore, no benefit has been recognized for the U.S. net operating loss carryforwards and other deferred tax assets.
- STOCK-BASED COMPENSATION
The following table summarizes the total stock-based compensation expense included in the unaudited condensed consolidated statements of operations for the three and nine months ended September 30, 2026 and 2025 (in thousands):
| Three Months Ended September 30, | Nine Months Ended September 30, | |||
|---|---|---|---|---|
| 2026 | 2025 | 2026 | 2025 | |
| Cost of revenue | $461 | $742 | $1,462 | $2,234 |
| Research and development | 2,679 | 3,525 | 8,471 | 11,061 |
| Selling, general and administrative | 16,350 | 16,739 | 51,087 | 53,882 |
| Total stock-based compensation expense | $19,490 | $21,006 | $61,020 | $67,177 |
Restricted Stock Units, Performance and Market-Based Restricted Stock Units
As of September 30, 2026, there were a total of 1.2 million awards outstanding and total unamortized compensation cost of $99.1 million, net of estimated forfeitures, related to restricted stock units (“RSUs”), which the Company expects to recognize over a weighted average period of 1.7 years.
As of September 30, 2026, there were a total of 0.7 million awards outstanding and total unamortized compensation cost of $34.5 million, net of estimated forfeitures, related to performance and market-based RSUs (“PRSUs”), which the Company expects to recognize over a weighted average remaining period of 1.5 years. The number of PRSUs reported as outstanding assumes the maximum number of PRSUs issuable in the key executive grant agreements. The actual number of PRSUs awarded will be based on Company performance criteria.
Performance and Market-Based RSUs
The Company grants PRSUs to its key executives. PRSUs can be earned in accordance with the performance equity program for each respective grant.
In February 2026, the Company granted market-based PRSUs to senior executive officers with a grant date fair value of $17.6 million. The earned amount of PRSUs will be based on the cumulative annual growth rate (“CAGR”) of annual unit volume calculated between fiscal year 2028 and fiscal year 2025 and measured against performance thresholds, as well as a relative comparison of the S&P Healthcare Equipment Select Industry Index to the Company's Total Shareholder Return (“TSR”). Each PRSU award has a maximum cap of 200% on the payout irrespective of above-median TSR performance, and maximum unit volume CAGR performance level. The grant date fair value of the TSR was determined by using the Monte Carlo valuation model based on the expected term of 2.9 years, interest risk free rate of 3.45%, implied volatility of 49.68% andno dividend yield. The vesting of these February 2026 awards is subject to the recipient senior executive officer's continued employment up through the certification date by the Board of Directors, no later than March 15, 2029.
Options
As of September 30, 2026, the Company had a total of 0.1 million options outstanding. As of September 30, 2026, the options were fully vested.
Employee Stock Purchase Plan
As of September 30, 2026, the Company had $1.9 million of unrecognized compensation expense that will be recognized over a weighted average period of 0.6 years.
- NET LOSS PER COMMON SHARE
As the Company had net losses for the three and nine months ended September 30, 2026 and 2025, all potential common shares were determined to be anti-dilutive. The following table sets forth the computation of the basic and diluted net loss per share during the three and nine months ended September 30, 2026 and 2025 (in thousands, except per share data):
| Three Months Ended September 30, | Nine Months Ended September 30, | |||
|---|---|---|---|---|
| 2026 | 2025 | 2026 | 2025 | |
| Numerator: | ||||
| Net loss | $(29,851) | $(5,212) | $(44,165) | $(50,130) |
| Denominator: | ||||
| Weighted-average shares used to compute net loss per common share, basic and diluted | 33,099 | 32,170 | 32,836 | 31,919 |
| Net loss per common share, basic and diluted | $(0.90) | $(0.16) | $(1.35) | $(1.57) |
The following outstanding shares of potentially dilutive securities have been excluded from diluted net loss per common share for the three and nine months ended September 30, 2026 and 2025 because their inclusion would be anti-dilutive (in thousands):
| Three Months Ended September 30, | Nine Months Ended September 30, | |||
|---|---|---|---|---|
| 2026 | 2025 | 2026 | 2025 | |
| Options to purchase common stock | 73 | 103 | 73 | 103 |
| RSUs and PRSUs1 | 1,928 | 2,325 | 1,928 | 2,325 |
| Senior convertible notes | 4,492 | 4,492 | 4,492 | 4,492 |
| Total | 6,493 | 6,920 | 6,493 | 6,920 |
1 PRSUs are based on the maximum number of PRSUs in the key executive grant agreements. The actual number of PRSUs vested will be based on Company performance criteria and relative TSR, as discussed in Note 10, Stock-Based Compensation.
- SUBSEQUENT EVENTS
VitalConnect Acquisition
On October 5, 2026, the Company completed the previously announced acquisition of Vital Connect, Inc., a Delaware corporation (“VitalConnect”), with VitalConnect becoming an indirect wholly-owned subsidiary of the Company. The Company paid approximately $237.5 million in cash, subject to customary final adjustments, and will issue up to 423,334 shares of common stock in connection with the closing of the VitalConnect acquisition upon successful transmission of evidence of ownership by former VitalConnect shareholders and other customary documentation. In August 2026, the Company provided VitalConnect with $10.0 million of interim working capital financing to fund its normal course of operations and certain specified expenses as both parties worked toward closing the acquisition.
The acquisition of VitalConnect expands the Company’s capabilities across ambulatory cardiac monitoring, creating a broader portfolio to serve diverse clinical needs. The Company also anticipates that the combination may create commercial acceleration opportunities by leveraging the Company’s scale, customer relationships, and go-to-market capabilities.
Due to the limited time since the acquisition date and availability of information, the preliminary acquisition valuation for the business combination is incomplete. As a result, the Company is unable to provide the amounts recognized as of the acquisition date for the major classes of assets acquired and liabilities assumed, including the information required for valuation of intangible assets and goodwill. The Company will include such disclosures in its Annual Report on Form 10-K for the year ending December 31, 2026.
Revolving Credit Facility
On November 3, 2026, the Company. as guarantor, its wholly-owned subsidiary, iRhythm Technologies, as borrower, and certain of the Company’s other subsidiaries, as guarantors, entered into a senior secured credit agreement (the "Credit Agreement") with JPMorgan Chase Bank, N.A., as administrative agent, and the lenders party thereto, which provides for a $300.0 million senior secured revolving credit facility with sublimits of $10.0 million in the aggregate for loans and letters of credit denominated in foreign currencies, $30.0 million for the issuance of letters of credit and $10.0 million for swingline loans (the "Revolving Credit Facility"). The Revolving Credit Facility matures on November 3, 2031, subject to an earlier springing maturity 91 days before the scheduled maturity of certain unsecured, subordinated or junior-lien indebtedness (including the 2029 Notes) if certain conditions exist. Any borrowings under the Revolving Credit Facility bear interest, at the borrower’s option, at (i) the Term SOFR rate (or, for borrowings denominated in certain foreign currencies, the applicable benchmark rate for such currency) plus a spread of 2.00% to 2.75% or (ii) an alternate base rate plus a spread of 1.00% to 1.75%, in each case based on the Company’s senior secured net leverage ratio. The Company is also obligated to pay an ongoing commitment fee on undrawn amounts. Funds borrowed under the Revolving Credit Facility may be used for general corporate purposes. No amounts were borrowed under the Revolving Credit Facility at closing. See Part II, Item 5 of this Quarterly Report on Form 10-Q for additional information regarding the Revolving Credit Facility including details of the springing maturity feature.
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