ARDELYX, INC. (ARDX)
SIC breadcrumb: Manufacturing > Chemicals And Allied Products > SIC 2834 Pharmaceutical Preparations
SEC company page: https://www.sec.gov/edgar/browse/?CIK=1437402. Latest filing source: 0001437402-26-000013.
Selected Fundamentals
| Metric | Value | Unit | FY | Filed |
|---|---|---|---|---|
| Revenue | 407,320,000 | USD | 2025 | 2026-02-19 |
| Net income | -61,599,000 | USD | 2025 | 2026-02-19 |
| Assets | 501,604,000 | USD | 2025 | 2026-02-19 |
Financials
Annual standardized facts from SEC companyfacts as of latest extracted filing date 2026-02-19. Source: https://data.sec.gov/api/xbrl/companyfacts/CIK0001437402.json. Derived margins, ratios, and free cash flow are computed from the extracted annual SEC facts.
| Metric | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|---|---|---|---|
| Revenue | 42,000,000 | 2,607,000 | 5,281,000 | 7,571,000 | 10,097,000 | 52,158,000 | 124,456,000 | 333,615,000 | 407,320,000 | |
| Net income | -112,387,000 | -64,339,000 | -91,298,000 | -94,940,000 | -94,313,000 | -158,165,000 | -67,207,000 | -66,067,000 | -39,136,000 | -61,599,000 |
| Operating income | -112,895,000 | -65,115,000 | -90,947,000 | -91,263,000 | -90,780,000 | -154,346,000 | -63,759,000 | -63,276,000 | -27,950,000 | -40,977,000 |
| Diluted EPS | -1.47 | -1.05 | -1.52 | -0.42 | -0.30 | -0.17 | -0.26 | |||
| Operating cash flow | -92,534,000 | -65,190,000 | -70,274,000 | -76,484,000 | -81,435,000 | -152,551,000 | -70,044,000 | -89,717,000 | -44,809,000 | -42,483,000 |
| Capital expenditures | 4,866,000 | 2,355,000 | 311,000 | 325,000 | 324,000 | 1,867,000 | 55,000 | 344,000 | 1,011,000 | 1,492,000 |
| Assets | 213,131,000 | 157,903,000 | 183,332,000 | 259,782,000 | 201,562,000 | 149,913,000 | 190,066,000 | 297,579,000 | 435,754,000 | 501,604,000 |
| Liabilities | 19,980,000 | 18,591,000 | 67,519,000 | 73,127,000 | 75,450,000 | 67,296,000 | 91,737,000 | 130,763,000 | 262,465,000 | 334,655,000 |
| Stockholders' equity | 193,151,000 | 139,312,000 | 115,813,000 | 186,655,000 | 126,112,000 | 82,617,000 | 98,329,000 | 166,816,000 | 173,289,000 | 166,949,000 |
| Cash and cash equivalents | 74,598,000 | 75,383,000 | 78,768,000 | 181,133,000 | 91,032,000 | 72,428,000 | 96,140,000 | 21,470,000 | 64,932,000 | 67,999,000 |
| Free cash flow | -97,400,000 | -67,545,000 | -70,585,000 | -76,809,000 | -81,759,000 | -154,418,000 | -70,099,000 | -90,061,000 | -45,820,000 | -43,975,000 |
Ratios
| Metric | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|---|---|---|---|
| Net margin | -128.85% | -53.08% | -11.73% | -15.12% | ||||||
| Operating margin | -122.24% | -50.84% | -8.38% | -10.06% | ||||||
| Return on equity | -58.19% | -46.18% | -78.83% | -50.86% | -74.79% | -191.44% | -68.35% | -39.60% | -22.58% | -36.90% |
| Return on assets | -52.73% | -40.75% | -49.80% | -36.55% | -46.79% | -105.50% | -35.36% | -22.20% | -8.98% | -12.28% |
| Liabilities / equity | 0.10 | 0.13 | 0.58 | 0.39 | 0.60 | 0.81 | 0.93 | 0.78 | 1.51 | 2.00 |
| Current ratio | 10.62 | 8.38 | 9.95 | 11.34 | 6.85 | 2.53 | 2.34 | 4.88 | 4.58 | 4.31 |
Financial Charts
Quarterly
Quarterly standardized facts from SEC companyfacts as of latest extracted filing date 2026-04-30. Source: https://data.sec.gov/api/xbrl/companyfacts/CIK0001437402.json.
| Quarter | End Date | Revenue | Net Income | Diluted EPS | Method |
|---|---|---|---|---|---|
| 2022-Q2 | 2022-06-30 | -0.19 | reported discrete quarter | ||
| 2022-Q3 | 2022-09-30 | -0.14 | reported discrete quarter | ||
| 2023-Q1 | 2023-03-31 | -0.13 | reported discrete quarter | ||
| 2023-Q2 | 2023-06-30 | 22,333,000 | -17,121,000 | -0.08 | reported discrete quarter |
| 2023-Q3 | 2023-09-30 | 56,391,000 | 6,629,000 | 0.03 | reported discrete quarter |
| 2023-Q4 | 2023-12-31 | 34,363,000 | -28,802,000 | derived Q4 = FY annual - nine-month YTD | |
| 2024-Q1 | 2024-03-31 | 46,023,000 | -26,518,000 | -0.11 | reported discrete quarter |
| 2024-Q2 | 2024-06-30 | 73,222,000 | -16,454,000 | -0.07 | reported discrete quarter |
| 2024-Q3 | 2024-09-30 | 98,241,000 | -809,000 | 0.00 | reported discrete quarter |
| 2024-Q4 | 2024-12-31 | 116,129,000 | 4,645,000 | derived Q4 = FY annual - nine-month YTD | |
| 2025-Q1 | 2025-03-31 | 74,114,000 | -41,144,000 | -0.17 | reported discrete quarter |
| 2025-Q2 | 2025-06-30 | 97,662,000 | -19,079,000 | -0.08 | reported discrete quarter |
| 2025-Q3 | 2025-09-30 | 110,329,000 | -969,000 | 0.00 | reported discrete quarter |
| 2025-Q4 | 2025-12-31 | 125,215,000 | -407,000 | derived Q4 = FY annual - nine-month YTD | |
| 2026-Q1 | 2026-03-31 | 94,473,000 | -37,605,000 | -0.15 | reported discrete quarter |
Quarterly Charts
Macro Cross-References
- CPIAUCSL - Consumer Price Index for All Urban Consumers: All Items in U.S. City Average
- UNRATE - Unemployment Rate
- FEDFUNDS - Federal Funds Effective Rate
- CES0500000003 - Average Hourly Earnings of All Employees, Total Private
- DFEDTARU - Federal Funds Target Range - Upper Limit
- DFEDTARL - Federal Funds Target Range - Lower Limit
- DGS3MO - Market Yield on U.S. Treasury Securities at 3-Month Constant Maturity
- DGS2 - Market Yield on U.S. Treasury Securities at 2-Year Constant Maturity
- DGS10 - Market Yield on U.S. Treasury Securities at 10-Year Constant Maturity
- DGS30 - Market Yield on U.S. Treasury Securities at 30-Year Constant Maturity
- T10Y2Y - 10-Year Treasury Constant Maturity Minus 2-Year Treasury Constant Maturity
- CPILFESL - Consumer Price Index for All Urban Consumers: All Items Less Food and Energy
- CPIUFDSL - Consumer Price Index for All Urban Consumers: Food
- CPIENGSL - Consumer Price Index for All Urban Consumers: Energy
- CUSR0000SAH1 - Consumer Price Index for All Urban Consumers: Shelter
- PCEPI - Personal Consumption Expenditures: Chain-type Price Index
- PCEPILFE - Personal Consumption Expenditures Excluding Food and Energy: Chain-type Price Index
- PPIACO - Producer Price Index by Commodity: All Commodities
- T10YIE - 10-Year Breakeven Inflation Rate
- U6RATE - Total Unemployed, Plus All Marginally Attached Workers Plus Total Employed Part Time for Economic Reasons
- PAYEMS - All Employees, Total Nonfarm
- CIVPART - Labor Force Participation Rate
- EMRATIO - Employment-Population Ratio
- UNEMPLOY - Unemployed
- CE16OV - Employment Level
- ICSA - Initial Claims
- JTSJOL - Job Openings: Total Nonfarm
- JTSQUR - Quits: Total Nonfarm
- GDPC1 - Real Gross Domestic Product
- A191RL1Q225SBEA - Real Gross Domestic Product: Percent Change from Preceding Period
- INDPRO - Industrial Production: Total Index
- TCU - Capacity Utilization: Total Index
- HOUST - New Privately-Owned Housing Units Started: Total Units
- PERMIT - New Privately-Owned Housing Units Authorized in Permit-Issuing Places: Total Units
- RSAFS - Advance Retail Sales: Retail Trade
- PCE - Personal Consumption Expenditures
- DSPIC96 - Real Disposable Personal Income
- PSAVERT - Personal Saving Rate
- M2SL - M2
- BOPGSTB - U.S. International Trade in Goods and Services: Balance
- MSPUS - Median Sales Price of Houses Sold for the United States
- HSN1F - New One Family Houses Sold: United States
- RHORUSQ156N - Homeownership Rate in the United States
- TTLCONS - Total Construction Spending: Total Construction in the United States
- RRVRUSQ156N - Rental Vacancy Rate in the United States
- TOTALSL - Total Consumer Credit Owned and Securitized
- REVOLSL - Revolving Consumer Credit Owned and Securitized
- DRCCLACBS - Delinquency Rate on Credit Card Loans, All Commercial Banks
- GDP - Gross Domestic Product
- GPDI - Gross Private Domestic Investment
- GCE - Government Consumption Expenditures and Gross Investment
- PCEC - Personal Consumption Expenditures
- NETEXP - Net Exports of Goods and Services
- GFDEBTN - Federal Debt: Total Public Debt
- GFDEGDQ188S - Federal Debt: Total Public Debt as Percent of Gross Domestic Product
- FYFSD - Federal Surplus or Deficit
- FGRECPT - Federal Government Current Receipts
- FGEXPND - Federal Government: Current Expenditures
- MANEMP - All Employees, Manufacturing
- USCONS - All Employees, Construction
- USTRADE - All Employees, Retail Trade
- USFIRE - All Employees, Financial Activities
- USGOVT - All Employees, Government
- AWHAETP - Average Weekly Hours of All Employees, Total Private
- DGORDER - Manufacturers' New Orders: Durable Goods
- NEWORDER - Manufacturers' New Orders: Nondefense Capital Goods Excluding Aircraft
- BUSINV - Total Business Inventories
- EXPGS - Exports of Goods and Services
- IMPGS - Imports of Goods and Services
- IR - Import Price Index (End Use): All Commodities
- PPIFIS - Producer Price Index by Commodity: Final Demand
Latest quarter (10-Q)
Latest 10-Q source: 0001437402-26-000022.
ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS You should read the following discussion and analysis of our financial condition and results of operations in conjunction with the condensed financial statements and notes thereto included elsewhere in this report and with the audited financial statements and related notes thereto included as part of our 2025 Form 10-K. This discussion and analysis and other parts of this report contain forward-looking statements that involve risk and uncertainties, such as statements of our plans, objectives, expectations and intentions. Our actual results could differ materially from those discussed in these forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, those discussed in the section of this report titled “Risk Factors.” These forward-looking statements speak only as of the date hereof. Except as required by law, we assume no obligation to update or revise these forward-looking statements for any reason. Unless the context requires otherwise, the terms “Ardelyx,” “Company,” “we,” “us” and “our” refer to Ardelyx, Inc. EXECUTIVE SUMMARY We are a commercial-stage biopharmaceutical company focused on the development and commercialization of innovative medicines that meet significant unmet medical needs. We currently market two therapies from the active ingredient tenapanor, an NHE3 inhibitor that was discovered and developed by Ardelyx. NHE3 is an antiporter expressed on the apical surface of the small and large intestines. Tenapanor is a minimally absorbed, small molecule therapy. We are committed to our mission of developing and commercializing innovative medicines that address unmet patient needs. Our principal strategy is to continue our commercial momentum with our current products while advancing and expanding a portfolio of important medicines for patients with unmet medical needs. Our priorities include (i) driving significant IBSRELA growth, (ii) maintaining XPHOZAH commercial momentum, (iii) further advancing our pipeline and portfolio and (iv) maintaining a solid financial foundation to support our future growth. Tenapanor, branded as IBSRELA®, is approved in the U.S. for the treatment of adults with IBS-C. We believe that IBSRELA can bring meaningful benefit to the approximately 13 million Americans who suffer from the symptoms of IBS-C, 17 Table of Contents many of whom continue to experience symptoms despite intervention with other therapies. We are seeking to further expand the IBSRELA eligible patient population to include patients with CIC, and have initiated a Phase 3 clinical trial (ACCEL) evaluating tenapanor in adult CIC patients. In January 2026, the Company dosed the first patient in ACCEL and has initiated all pre-identified sites. The Company expects to complete enrollment by the end of 2026 with topline data read out in the second half of 2027. IBSRELA is also being evaluated in multiple pediatric clinical trials which could potentially provide six months of additional patent life for tenapanor. Tenapanor, branded as XPHOZAH®, is approved in the U.S. to reduce serum phosphorus in adults with chronic kidney disease on dialysis as add-on therapy in patients who have an inadequate response to phosphate binders or who are intolerant of any dose of phosphate binder therapy. We believe XPHOZAH can bring meaningful relief to adult chronic kidney disease patients on dialysis, the vast majority of whom have elevated levels of serum phosphorus and are unable to achieve target serum phosphorus levels with phosphate binders alone. Continually elevated levels of serum phosphorus can result in severe cardiovascular health complications. We are also developing a next-generation NHE3 inhibitor, RDX10531, which has demonstrated in preclinical models to have improved solubility and potency compared to tenapanor. RDX10531 is currently being tested in IND-enabling studies. If successful, RDX10531 has potential for broad applications across multiple therapeutic areas. Effective as of April 28, 2026, we entered into the Sixth Amendment with SLR as collateral agent and the lenders party thereto, resulting in a collectively reduced interest rate under all term loans, including the term loans we have the future option to draw from, and an extended maturity date for the outstanding term loans. For additional information, refer to Note 15. Subsequent Events. Refer to the Summary of Abbreviated Terms at the end of this Quarterly Report on Form 10-Q for definitions of terms used throughout the document. RESULTS OF OPERATIONS The results of operations for the three months ended March 31, 2026 are not necessarily indicative of results to be expected for the entire year ending December 31, 2026, or for any other interim period or future year. See Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” of our 2025 Form 10-K to enhance the understanding of our financial metrics below. Revenues Below is a summary of our total revenues: Three Months Ended March 31, Change 2026 vs. 2025 ($ in thousands) 2026 2025 $ % Product sales, net $ 93,373 $ 67,814 $ 25,559 38 % Non-cash royalty revenue related to the sale of future royalties 695 1,026 (331) (32) % Product supply revenue 354 254 100 39 % Licensing revenue 51 5,020 (4,969) (99) % Total revenues $ 94,473 $ 74,114 $ 20,359 27 % Below is a summary of our product sales, net by product: Three Months Ended March 31, Change 2026 vs. 2025 ($ in thousands) 2026 2025 $ % Product sales, net IBSRELA $ 70,074 $ 44,403 $ 25,671 58 % XPHOZAH 23,299 23,411 (112) — % Total product sales, net $ 93,373 $ 67,814 $ 25,559 38 % Product sales, net: The increase in IBSRELA product sales, net in the three months ended March 31, 2026 primarily reflected higher demand, driven by continued increase in awareness and prescriber experience, and to a lesser extent, higher net price. 18 Table of Contents XPHOZAH product sales, net in the three months ended March 31, 2026 remained consistent with the prior year and reflected continued growth in other non-Medicare sales channels. XPHOZAH product sales, net in the prior year included a $3.8 million favorable adjustment driven by a change in previously estimated product returns. Product supply revenue: Product supply revenue is primarily impacted by the timing of product supply shipments to our collaboration partners under our product supply agreements in support of the development and commercialization of our products ex-U.S. by our collaboration partners. The product supply revenue was primarily attributable to Fosun Pharma and Knight in the three months ended March 31, 2026 and 2025, respectively. Licensing revenue: Licensing revenue is primarily impacted by the timing of regulatory and commercialization milestone achievements as well as sales-based royalties received from our collaboration partners. The licensing revenue in the three months ended March 31, 2026 was attributable to sales-based royalties received from Fosun Pharma and Knight. The licensing revenue in the three months ended March 31, 2025 was primarily attributable to a $5.0 million milestone earned under the terms of the Fosun Agreement, following the NDA approval by China’s Center for Drug Evaluation of the NMPA for tenapanor in the control of serum phosphorus in adult patients with CKD on hemodialysis. Non-cash royalty revenue: The decrease in non-cash royalty revenue in the three months ended March 31, 2026 reflected lower royalties received from Kyowa Kirin for sales of PHOZEVEL in Japan. GTN Adjustments Reconciliation of gross product sales to product sales, net is as follows: Three Months Ended March 31, Change 2026 vs. 2025 ($ in thousands) 2026 2025 $ % Gross product sales $ 146,618 $ 96,732 $ 49,886 52 % GTN adjustments (53,245) (28,918) (24,327) 84 % Product sales, net $ 93,373 $ 67,814 $ 25,559 38 % GTN adjustment percentage 36.3 % 29.9 % The increase in GTN adjustment percentage in the three months ended March 31, 2026 primarily reflected the prior year favorable impact of a change in previously estimated XPHOZAH product returns, an unfavorable channel mix and Medicare and Medicaid Inflation Rebate charges. The activities and ending reserve balances for each significant category of GTN adjustments on product sales, net, which constitute variable consideration, were as follows: (in thousands) Discounts and Chargebacks Rebates, Wholesaler and GPO Fees Copay Assistance and Returns Total Balance as of December 31, 2025 $ 1,693 $ 34,456 $ 9,274 $ 45,423 Provisions(1) 8,205 29,969 15,071 53,245 Credits/payments (7,753) (25,012) (12,475) (45,240) Balance as of March 31, 2026 $ 2,145 $ 39,413 $ 11,870 $ 53,428 (1)Adjustments to prior period provisions recorded in the current period were not material. 19 Table of Contents Costs and Expenses Below is a summary of our costs and operating expenses, interest expense, non-cash interest expense related to the sale of future royalties and other income, net: Three Months Ended March 31, Change 2026 vs. 2025 ($ in thousands) 2026 2025 $ % Cost of sales $ 4,811 $ 12,303 $ (7,492) (61) % Research and development 20,188 14,938 5,250 35 % Selling, general and administrative 102,267 83,222 19,045 23 % Total costs and operating expenses $ 127,266 $ 110,463 $ 16,803 15 % Interest expense $ (5,599) $ (4,191) $ (1,408) 34 % Non-cash interest expense related to the sale of future royalties $ (1,317) $ (2,071) $ 754 (36) % Other income, net $ 2,112 $ 2,326 $ (214) (9) % Cost of Sales Three Months Ended March 31, Change 2026 vs. 2025 ($ in thousands) 2026 2025 $ % Cost of product sales $ 2,875 $ 2,340 $ 535 23 % Other cost of revenue 1,936 9,963 (8,027) (81) % Cost of sales $ 4,811 $ 12,303 $ (7,492) (61) % The increase in cost of product sales in the three months ended March 31, 2026 reflected higher product sales. A portion of the costs of IBSRELA and XPHOZAH units recognized as revenue during the three months ended March 31, 2026 was expensed as research and development expense in periods prior to the commencement of capitalization of inventory costs for each respective product. The cost associated with inventory sold but previously expensed as research and development was $0.3 million and $0.7 million for the three months ended March 31, 2026 and 2025, respectively. The value of inventory on hand as of March 31, 2026 and December 31, 2025 that was previously expensed as research and development was approximately $7.1 million and $10.9 million, respectively. The decrease in other cost of revenue in the three months ended March 31, 2026 primarily reflected the full recognition of the maximum $75.0 million royalty obligation under the AstraZeneca Termination Agreement as of the end of the 2025 second quarter, partially offset by higher costs related to capacity expansion at our CMOs. Other cost of revenue related to the AstraZeneca Termination Agreement was $8.8 million for the three months ended March 31, 2025. Research and Development Below is a summary of our research and development expenses: Three Months Ended March 31, Change 2026 vs. 2025 ($ in thousands) 2026 2025 $ % External R&D and other expenses $ 9,328 $ 4,202 $ 5,126 122 % Employee-related expenses 9,870 9,455 415 4 % Facilities, equipment, depreciation and other expenses 990 1,281 (291) (23) % Total research and development expenses $ 20,188 $ 14,938 $ 5,250 35 % The external R&D and other expenses consist primarily of expenses associated with li [Excerpt truncated for page length; source filing is linked above.]
Latest 10-K MD&A
ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS You should read the following discussion and analysis of our financial condition and results of operations in conjunction with our financial statements and related notes included elsewhere in this report. This discussion and other parts of this report contain forward-looking statements that involve risk and uncertainties, such as statements of our plans, objectives, expectations and intentions. Our actual results could differ materially from those discussed in these forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, those discussed in the section of this report titled “Risk Factors.” These forward-looking statements speak only as of the date hereof. Except as required by law, we assume no obligation to update or revise these forward-looking statements for any reason. Unless the context requires otherwise, the terms “Ardelyx,” “Company,” “we,” “us” and “our” refer to Ardelyx, Inc. EXECUTIVE SUMMARY AND FINANCIAL HIGHLIGHTS We are a commercial-stage biopharmaceutical company focused on the development and commercialization of innovative medicines that meet significant unmet medical needs. We currently market two therapies from the active ingredient tenapanor, an NHE3 inhibitor that was discovered and developed by Ardelyx. NHE3 is an antiporter expressed on the apical surface of the small and large intestines. Tenapanor is a minimally absorbed, first-in-class, oral, small molecule therapy. Tenapanor, branded as IBSRELA®, is approved in the U.S. for the treatment of adults with irritable bowel syndrome with constipation. We believe that IBSRELA can bring meaningful benefit to the approximately 13 million Americans who suffer from the symptoms of IBS-C, many of whom continue to experience symptoms despite intervention with other therapies. We are seeking to further expand the IBSRELA eligible patient population to include patients with CIC, and have initiated a Phase 3 clinical trial evaluating tenapanor in adult CIC patients. Tenapanor, branded as XPHOZAH®, is approved in the U.S. to reduce serum phosphorus in adults with chronic kidney disease on dialysis as add-on therapy in patients who have an inadequate response to phosphate binders or who are intolerant of any dose of phosphate binder therapy. We believe XPHOZAH can bring meaningful relief to adult chronic kidney disease patients on dialysis, the vast majority of whom have elevated levels of serum phosphorus and are unable to achieve target serum phosphorus levels with phosphate binders alone. Continually elevated levels of serum phosphorus can result in severe cardiovascular health complications. In addition to commercializing IBSRELA and XPHOZAH, we are also developing a next-generation NHE3 inhibitor that we believe can have application across multiple therapeutic areas. Refer to the Summary of Abbreviated Terms at the end of this Annual Report on Form 10-K for definitions of terms used throughout the document. We are committed to our mission of developing and commercializing innovative medicines that address unmet patient needs. Our principal strategy is to continue our commercial momentum with our current products while advancing and expanding a portfolio of important medicines for patients with unmet medical needs. Our priorities include (i) driving significant IBSRELA growth, (ii) maintaining XPHOZAH commercial momentum, (iii) further advancing our pipeline and portfolio and (iv) maintaining a solid financial foundation to support our future growth. 57 Table of Contents In February 2025, we announced the NDA approval by China’s Center for Drug Evaluation of the NMPA for tenapanor in the control of serum phosphorus in adult patients with CKD on hemodialysis. This approval triggered a $5.0 million milestone to us under the terms of the Fosun Agreement, which was recorded as licensing revenue on our statements of operations and comprehensive loss when earned during the 2025 first quarter and was received in April 2025. As of the end of the 2025 second quarter, we had fully recognized the maximum $75.0 million royalty obligation, which had been fully remitted as of the end of the 2025 third quarter under the AstraZeneca Termination Agreement. On June 30, 2025, we entered into an amendment to our 2022 Loan Agreement (the Fifth Amendment), by and among the Company, as borrower, SLR, as collateral agent and the lenders party thereto. The Fifth Amendment, among other things, (i) provided for the immediate draw of $50.0 million of the Term E Loan on the closing date of the Fifth Amendment; and (ii) provides us with the option to draw an additional $100.0 million of committed senior secured term loans, consisting of the Term F Loan and the Term G Loan, each in the amount of $50.0 million. The Term F Loan and the Term G Loan may be drawn at the Company’s election by June 30, 2026 and December 20, 2026, respectively. In September 2025, we submitted an IND application to the FDA for IBSRELA to expand the IBSRELA eligible patient population to include patients with CIC. In January 2026, we initiated ACCEL (ten-03-301), a Phase 3 clinical trial designed to assess the safety and efficacy of tenapanor for the treatment of CIC. Enrollment in ACCEL is expected throughout 2026, with topline data read out in the second half of 2027. CIC is characterized by difficult, infrequent or incomplete bowel movements, and is associated with significantly impaired quality of life, disrupted productivity and high healthcare-related costs. CIC is estimated to affect more than 34 million Americans. Pending the outcome of the Phase 3 clinical trial, if successful, we intend to submit a supplemental NDA to the FDA for tenapanor for the CIC indication. In October 2025, we announced a development program for RDX10531. We believe RDX10531 is a next-generation NHE3 inhibitor with potential application across multiple therapeutic areas. We are currently conducting activities to support an IND submission to the FDA for RDX10531 in the second half of 2026. The 2023 Open Market Sales Agreement with Jefferies with respect to an “at-the-market offering” program which was established under the Company’s prior shelf registration statement on Form S-3 expired in January 2026. In November 2025, we filed an automatic shelf registration statement on Form S-3ASR, along with a prospectus supplement relating to the offering and sale of up to $100.0 million of our common stock pursuant to the 2025 Open Market Sales Agreement with Jefferies, deemed to be “at-the-market offerings.” During the year ended December 31, 2025, we did not sell any shares under the 2023 or 2025 Open Market Sales Agreements. On January 22, 2026, we received an Issue Notification from the USPTO indicating the issuance of U.S. Patent No. 12,539,299. The patent relates to the formulation of tenapanor and covers the commercial formulations of IBSRELA and XPHOZAH and has an expiration date of November 26, 2042. Below is a summary of our product sales, net by product for the years ended December 31 and total cash, cash equivalents and short-term investments as of December 31: (in thousands) 2025 2024 IBSRELA product sales, net $ 274,207 $ 158,286 XPHOZAH product sales, net 103,601 160,910 Total product sales, net $ 377,808 $ 319,196 Cash, cash equivalents and short-term investments $ 264,689 $ 250,100 RECENT ACCOUNTING PRONOUNCEMENTS A summary of recent accounting pronouncements that we have adopted or expect to adopt is included in Note 2. Summary of Significant Accounting Policies in the notes to our financial statements, included in Part II, Item 8, of this Annual Report on Form 10-K. CRITICAL ACCOUNTING POLICIES AND ESTIMATES A detailed discussion of our significant accounting policies can be found in Note 2. Summary of Significant Accounting Policies, in the notes to our financial statements, included in Part II, Item 8, of this Annual Report on Form 10-K. The preparation of financial statements requires the use of estimates and assumptions that affect the reported amounts of assets and liabilities and the reported amounts of revenues and expenses. Our critical accounting policies are those that significantly affect 58 Table of Contents our financial condition and results of operations and require the most difficult, subjective or complex judgments, often because of the need to make estimates about the effect of matters that are inherently uncertain. While we believe that our estimates, assumptions and judgments are reasonable, they are based on information presently available. Actual results may differ significantly from these estimates due to changes in judgments, assumptions or conditions as a result of unforeseen events or otherwise, which could have a material impact on our financial position and results of operations. Revenue Recognition The application of ASC 606 Revenue from Contracts with Customers substantially impacts our reported results, particularly product sales, net, which requires certain estimates in determining the transaction price. Total revenues are recognized following a five-step model: (i) identify the customer contract, (ii) identify the contract’s performance obligations, (iii) determine the transaction price, (iv) allocate the transaction price to the performance obligations and (v) recognize revenue when or as a performance obligation is satisfied. Product Sales, Net Product revenue is recognized when Customers take control of the product, which typically occurs upon delivery to the Customers. The transaction price for product sales is reduced for estimates of variable consideration related to (i) discounts and chargebacks, (ii) rebates, wholesaler and GPO fees, and (iii) copay assistance and returns (collectively, gross-to-net adjustments or GTN adjustments). Except for certain wholesaler and GPO fees and discounts, which are based on contracts, our estimates of GTN adjustments involve assumptions and judgments. Our estimates of GTN adjustments for rebates, copay assistance and chargebacks require significant assumptions and judgments, considering factors such as legal interpretations of applicable laws and regulations, historical experience, payor mix (e.g., Medicare or Medicaid), current contract prices under applicable programs, unbilled claims, processing time lags and inventory levels in the distribution channel. Estimates are assessed each period and adjusted as required to revise information or actual experience. Discounts and Chargebacks Our U.S. business participates in programs with government entities, the most significant of which are the U.S. Department of Defense, the U.S. VA, and other parties, including covered entities under the 340B program, whereby pricing on products is extended below wholesale acquisition cost (lower program price) for qualified government providers when products are purchased through wholesalers. The chargeback represents the difference between the wholesale acquisition cost and this lower program price that the wholesalers charge us. In such sales, accounts receivable is reduced for the estimated amount of unprocessed chargeback claims (typically within a two- to four-week time lag). Our Customers may receive prompt pay discounts for payment within a specified period, generally approximating two percent of the invoiced sales price. Our payment terms are generally 30 to 60 days. We expect discounts to be earned when offered and therefore deduct the full amount of these discounts from product sales when revenue is recognized. Accordingly, accounts receivable is reduced for the estimated amount of these discounts. Rebates, Wholesaler and GPO Fees Our U.S. business participates in state government Medicaid and Medicare programs and other qualifying federal and state government programs requiring discounts and rebates to participating federal, state and local government entities. For Medicaid and Medicare programs, we estimate the portion of sales attributed to such programs’ patients as rebates to be paid to the respective participating entities, which requires significant judgment. The IRA, among other things, imposes financial penalties for price increases that outpace inflation (first due in 2023) and replaces the Medicare Part D coverage gap discount program with a new discounting program (which began in 2025). The standard Part D benefit now comprises three phases: the deductible phase, the initial coverage phase and the catastrophic coverage phase. Applicable dispensed drugs will be subject to manufacturer discounts of 10% during the initial coverage phase and 20% during the catastrophic coverage phase. Beginning in 2025, we estimate the percentage of products sold to patients in the initial coverage and catastrophic coverage phases and adjust the transaction price for such discount at the time of sale. Under the redesigned Medicare Part D, we are a specified manufacturer whose applicable drugs for Low Income Subsidy-eligible beneficiaries under section 1860D-14(a) of the Social Security Act are subject to lower applicable discounts during the phase-in period. Prior to 2025, we paid a 70% discount to CMS when the Medicare Part D beneficiaries were in the coverage gap. All unpaid or unbilled discounts and rebates provided through these programs are recorded in accrued expenses and other current liabilities on the balance sheets. Settlement of these accruals can lag for multiple quarters due to extensive time delays 59 Table of Contents between recording an accrual and subsequent receipt of an invoice. Due to this lag, adjustments can incorporate revision of several prior quarters. We pay wholesaler and GPO fees for distribution and related services, which are a significant portion of our GTN adjustments; however, since they are based on contracts, they require inherently less estimation. Copay Assistance and Returns We offer financial assistance to qualified commercially-insured patients for the portion of their prescription cost that is not covered by payors. We estimate the amount of copay assistance provided to qualified patients based on the terms of the program and redemption information provided by third-party claims processing organizations. We also estimate the amount of copay assistance that we will provide associated with product we have sold but has not yet been dispensed to patients, which requires significant assumption and judgment. Our estimates are recorded in accrued expenses and other current liabilities on the balance sheets. We primarily rely on our products’ actual returns history and other factors, including levels of our inventory in the distribution channel and estimated shelf life, to estimate our products’ returns. We also consider historical sales returns of similar products, such as those within the same product line, similar therapeutic area, similar distribution model, estimated levels of inventory in the distribution channel and projected demand. Our estimates of products’ returns reduce accounts receivable. Use of Information from External Sources Information from external sources is used to estimate GTN adjustments. Our estimate of inventory at the wholesalers is based on historical inventory experience, as well as our analysis of third-party information, including written and oral information obtained from certain wholesalers with respect to their inventory levels and sell-through to customers and our internal information. The inventory information received from wholesalers is a product of their recordkeeping process and excludes inventory held by intermediaries to whom they sell, such as retailers and hospitals. We also use information from external sources to identify prescription trends, patient demand and average selling prices. Our estimates are subject to inherent limitations of relying on third-party information, as certain third-party information is itself in the form of estimates and reflects other limitations, including lags between the date third-party information is generated and the date we receive it. RESULTS OF OPERATIONS Revenues Our revenue to date has been generated through a combination of product sales and payments in connection with our current collaboration partnerships with various external partners. In the future, we may generate revenue from a combination of our own product sales and payments in connection with our current or future collaboration partnerships, including license fees, other upfront payments, milestone payments, royalties and payments for drug product and/or drug substance. We expect that any revenue we generate will fluctuate in future periods as a result of many factors as described in Part I, Item 1A, “Risk Factors,” of this Annual Report on Form 10-K. Below is a summary of our total revenues: Year Ended December 31, Change 2025 vs. 2024 Change 2024 vs. 2023 ($ in thousands) 2025 2024 2023 $ % $ % Product sales, net $ 377,808 $ 319,196 $ 82,526 $ 58,612 18 % $ 236,670 287 % Product supply revenue 15,879 11,649 6,121 4,230 36 % 5,528 90 % Licensing revenue 5,088 78 35,809 5,010 (a) (35,731) (100) % Non-cash royalty revenue related to the sale of future royalties 8,545 2,692 — 5,853 217 % 2,692 (a) Total revenues $ 407,320 $ 333,615 $ 124,456 $ 73,705 22 % $ 209,159 168 % (a) Percent change is not meaningful. 60 Table of Contents Below is a summary of our product sales, net by product: Year Ended December 31, Change 2025 vs. 2024 Change 2024 vs. 2023 ($ in thousands) 2025 2024 2023 $ % $ % Product sales, net IBSRELA $ 274,207 $ 158,286 $ 80,062 $ 115,921 73 % $ 78,224 98 % XPHOZAH 103,601 160,910 2,464 (57,309) (36) % 158,446 (a) Total product sales, net $ 377,808 $ 319,196 $ 82,526 $ 58,612 18 % $ 236,670 287 % (a) Percent change is not meaningful. Product sales, net: The increase in IBSRELA product sales, net in 2025 and 2024 primarily reflected higher demand, driven by continued increase in awareness and prescriber experience. To a lesser extent, the increase in 2025 also reflected higher net price. The decrease in XPHOZAH product sales, net in 2025 primarily reflected lower demand and lower net price, both driven by the loss of XPHOZAH Medicare Part D reimbursement. On January 1, 2025, CMS officially transitioned oral only therapies for ESRD patients on dialysis, including XPHOZAH, into the ESRD Prospective Payment System. This decrease was partially offset by continued growth in other channels. The increase in XPHOZAH product sales, net in 2024 primarily reflected higher demand since its commercial launch in November 2023. Product supply revenue: Product supply revenue is primarily impacted by the timing of product supply shipments to our collaboration partners under our product supply agreements in support of the development and commercialization of our products ex-U.S. by our collaboration partners. The product supply revenue was primarily attributable to Kyowa Kirin for all years presented. Licensing revenue: Licensing revenue is primarily impacted by the timing of regulatory and commercialization milestone achievements from our collaboration partners, as well as sales-based royalties received from Knight. The licensing revenue in 2025 was primarily attributable to a $5.0 million milestone earned during the 2025 first quarter under the terms of the Fosun Agreement, following the NDA approval by China’s Center for Drug Evaluation of the NMPA for tenapanor in the control of serum phosphorus in adult patients with CKD on hemodialysis. The licensing revenue in 2023 was primarily attributable to $30.0 million in payments received under the Kyowa Kirin Agreement, following Kyowa Kirin’s submission to the Japanese MHLW for the NDA for tenapanor in the improvement of hyperphosphatemia in adult patients with CKD on dialysis; and a $5.0 million milestone payment under the Fosun Agreement, following the NDA acceptance by China’s Center for Drug Evaluation of the NMPA for tenapanor in the control of serum phosphorus in adult patients with CKD on hemodialysis and the FDA approval of XPHOZAH to reduce serum phosphorus in adults with CKD on dialysis as add-on therapy in patients who have an inadequate response to phosphate binders or who are intolerant of any dose of phosphate binder therapy. Non-cash royalty revenue: Non-cash royalty revenue reflects royalties and commercialization milestones from Kyowa Kirin for sales of PHOZEVEL in Japan, which was launched in February 2024. Non-cash royalty revenue in 2025 included approximately $3.4 million related to a commercialization milestone earned during the 2025 third quarter under the terms of the Kyowa Kirin Agreement. The payment was remitted to HCR upon receipt in accordance with the HCR Agreement. 61 Table of Contents GTN Adjustments We recognize product sales net of GTN adjustments, as further described in Note 6. Revenue and the “Critical Accounting Policies and Estimates” caption in Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations.” Reconciliation of gross product sales to product sales, net is as follows: Year Ended December 31, Change 2025 vs. 2024 Change 2024 vs. 2023 ($ in thousands) 2025 2024 2023 $ % $ % Gross product sales $ 541,378 $ 429,053 $ 113,861 $ 112,325 26 % $ 315,192 277 % GTN adjustments (163,570) (109,857) (31,335) (53,713) 49 % (78,522) 251 % Product sales, net $ 377,808 $ 319,196 $ 82,526 $ 58,612 18 % $ 236,670 287 % GTN adjustment percentage 30.2 % 25.6 % 27.5 % GTN adjustments are primarily a function of sales volume, payor mix, contractual or legislative discounts and rebates. The increase in GTN adjustment percentage in 2025 reflected the unfavorable payor mix shifts, primarily associated with loss of XPHOZAH Medicare Part D reimbursement. The decrease in GTN adjustment percentage in 2024 was primarily due to a more favorable payor mix and lower sales subjected to copay assistance. The activities and ending reserve balances for each significant category of GTN adjustments on product sales, net, which constitute variable consideration, were as follows: (in thousands) Discounts and Chargebacks Rebates, Wholesaler and GPO Fees Copay Assistance and Returns Total Balance as of December 31, 2023 $ 478 $ 4,234 $ 3,916 $ 8,628 Provisions 15,099 65,833 28,925 109,857 Credits/payments (13,934) (55,592) (21,671) (91,197) Balance as of December 31, 2024 1,643 14,475 11,170 27,288 Provisions(1) 23,356 108,547 31,667 163,570 Credits/payments (23,306) (88,566) (33,563) (145,435) Balance as of December 31, 2025 $ 1,693 $ 34,456 $ 9,274 $ 45,423 (1)Provisions included approximately $4.4 million of net favorable adjustment resulting from changes in prior periods’ estimates. 62 Table of Contents Costs and Expenses Below is a summary of our costs and operating expenses, interest expense, non-cash interest expense related to the sale of future royalties and other income, net: Year Ended December 31, Change 2025 vs. 2024 Change 2024 vs. 2023 ($ in thousands) 2025 2024 2023 $ % $ % Cost of sales $ 39,537 $ 50,556 $ 17,795 $ (11,019) (22) % $ 32,761 184 % Research and development 71,527 52,317 35,536 19,210 37 % 16,781 47 % Selling, general and administrative 337,233 258,692 134,401 78,541 30 % 124,291 92 % Total costs and operating expenses $ 448,297 $ 361,565 $ 187,732 $ 86,732 24 % $ 173,833 93 % Interest expense $ (20,102) $ (13,006) $ (4,950) $ (7,096) 55 % $ (8,056) 163 % Non-cash interest expense related to the sale of future royalties $ (8,296) $ (7,088) $ (3,924) $ (1,208) 17 % $ (3,164) 81 % Other income, net $ 8,745 $ 9,174 $ 6,630 $ (429) (5) % $ 2,544 38 % Cost of Sales Cost of sales consists of (i) cost of product sales and (ii) other cost of revenue. Cost of product sales includes the cost of commercial goods sold to our Customers, such as the cost of materials, third-party contract manufacturing, third-party packaging services, freight, labor costs for personnel involved in the manufacturing process and indirect overhead costs. Other cost of revenue includes the cost of materials sold to our collaboration partners under product supply agreements, certain costs related to capacity expansion at current and future CMOs, as well as payments due to AstraZeneca based on sales of tenapanor, as discussed further under the “AstraZeneca” caption in Note 7. Collaboration and Licensing Agreements. Below is a summary of our costs of sales: Year Ended December 31, Change 2025 vs. 2024 Change 2024 vs. 2023 ($ in thousands) 2025 2024 2023 $ % $ % Cost of product sales $ 11,185 $ 6,851 $ 2,323 $ 4,334 63 % $ 4,528 195 % Other cost of revenue 28,352 43,705 15,472 (15,353) (35) % 28,233 182 % Cost of sales $ 39,537 $ 50,556 $ 17,795 $ (11,019) (22) % $ 32,761 184 % The increase in cost of product sales in 2025 and 2024 reflected higher product sales. A portion of the costs of IBSRELA and XPHOZAH units recognized as revenue during 2025 and 2024 was expensed as research and development expense in periods prior to the commencement of capitalization of inventory costs for each respective product as discussed in Note 2. Summary of Significant Accounting Policies. The cost associated with inventory sold but previously expensed as research and development was $3.2 million, $6.3 million and $4.4 million in 2025, 2024 and 2023, respectively. The value of inventory on hand as of December 31, 2025 and 2024 that was previously expensed as research and development was approximately $10.9 million and $15.6 million, respectively. The decrease in other cost of revenue in 2025 primarily reflected the full recognition of the maximum $75.0 million royalty obligation under the AstraZeneca Termination Agreement as of the end of the 2025 second quarter, partially offset by higher costs associated with product supply revenue. The increase in other cost of revenue in 2024 primarily reflected higher AstraZeneca royalties, driven by higher product sales, net of tenapanor, as well as higher costs associated with product supply revenue. Other cost of revenue related to the AstraZeneca Termination Agreement was $12.7 million, $34.7 million and $12.4 million in 2025, 2024 and 2023, respectively. As of the end of the 2025 second quarter, the maximum $75.0 million royalty obligation under the AstraZeneca Termination Agreement had been fully recognized. 63 Table of Contents Research and Development Research and development activities include research and early discovery, preclinical and clinical development, drug formulation and medical support to marketed products. External R&D and other expenses include research and development expenses incurred under agreements with outside consultants, third-party CROs and investigative sites where a substantial portion of our clinical studies are conducted, and with CMOs where our clinical supplies are produced. Employee-related expenses include salaries, bonuses, benefits, travel and stock-based compensation. Facilities, equipment, depreciation and other expenses include supplies and materials consumed in connection with our research operations, direct and allocated expenses for rent and maintenance of facilities, depreciation and amortization expense, information technology expense and other supplies. Below is a summary of our research and development expenses: Year Ended December 31, Change 2025 vs. 2024 Change 2024 vs. 2023 ($ in thousands) 2025 2024 2023 $ % $ % External R&D and other expenses $ 31,747 $ 20,723 $ 15,213 $ 11,024 53 % $ 5,510 36 % Employee-related expenses 35,250 27,541 17,391 7,709 28 % 10,150 58 % Facilities, equipment, depreciation and other expenses 4,530 4,053 2,932 477 12 % 1,121 38 % Total research and development expenses $ 71,527 $ 52,317 $ 35,536 $ 19,210 37 % $ 16,781 47 % The increase in R&D expenses in 2025 reflected higher external R&D and other expenses primarily associated with clinical trial activities. The increase in R&D expenses was also due to increased employee-related expenses primarily driven by higher headcount to support clinical trial activities and medical engagement with scientific communities in the areas of gastroenterology and nephrology related to our marketed products. The increase in R&D expenses in 2024 reflected increased employee-related expenses primarily driven by higher headcount to support medical engagement with scientific communities in the areas of gastroenterology and nephrology related to our marketed products and higher external R&D and other expenses attributable to clinical trial and pharmacovigilance activities. The increases in employee-related expenses in 2025 and 2024 included incremental stock-based compensation expenses of $0.7 million and $6.0 million, respectively. Selling, General and Administrative Selling, general and administrative expenses relate to sales and marketing, finance, human resources, legal and other administrative activities, including information technology. Selling, general and administrative expenses consist primarily of personnel costs, outside professional services, marketing, advertising and legal expenses, facilities costs not otherwise allocated to research and development and other general and administrative costs. The increase in selling, general and administrative expenses in 2025 and 2024 primarily reflected increased commercialization and administrative costs to support net sales growth of IBSRELA and XPHOZAH. The increases consisted of external spending for disease awareness initiatives, patient affordability, access support and related patient awareness, as well as increased commercial infrastructure. In addition, these increases were attributable to increases in headcount and related personnel costs, including incremental stock-based compensation expenses of $10.9 million and $17.8 million in 2025 and 2024, respectively. Interest Expense Interest expense represents the interest associated with our 2022 Loan Agreement. The increase in interest expense in 2025 and 2024 primarily reflected a higher outstanding loan balance resulting from the term loan draws in each respective year: $50.0 million for the Term E Loan in June 2025, $50.0 million for the Term D Loan in October 2024 and $50.0 million for the Term C Loan in March 2024. Non-Cash Interest Expense Related to the Sale of Future Royalties Non-cash interest expense consists of imputed interest on the carrying value of our deferred royalty obligation, which is impacted by the imputed interest rate derived from estimated amounts and timing of future royalties and commercialization payments to be received by HCR. The carrying value of the deferred royalty obligation increases from proceeds received from 64 Table of Contents HCR and recorded non-cash interest expense, and decreases as royalties and commercialization milestone payments received from Kyowa Kirin from sales of tenapanor in Japan are remitted to HCR. Refer to Note 8. Deferred Royalty Obligation Related to the Sale of Future Royalties for further detail. The increase in non-cash interest expense related to the sale of future royalties in 2025 and 2024 primarily reflected the imputed interest accrued on the increasing carrying value of the deferred royalty obligation, partially offset by royalties and commercialization milestones received from Kyowa Kirin related to the sale of PHOZEVEL, which were remitted to HCR. Other Income, Net Other income, net consists of interest income earned on our cash, cash equivalents and short-term investments, the periodic revaluation of previously outstanding exit fees, as well as currency exchange gains and losses. The decrease in other income, net in 2025 primarily reflected lower income on our investments resulting from lower interest rates throughout the period, partially offset by larger investment balances and higher currency exchange gains. The increase in other income, net in 2024 primarily reflected higher income on our investments resulting from both higher interest rates and larger investment balances throughout the period. In 2024 and 2023, other income, net included the periodic revaluations of our previously outstanding 2022 Exit Fee and 2018 Exit Fee, as discussed in Note 10. Derivative Liabilities, which were settled in October 2024 and October 2023, respectively. Provision for Income Taxes Our provision for income taxes includes current and deferred tax, including foreign withholding taxes paid on payments received from certain collaboration partners. Deferred income tax balances reflect the effects of temporary differences between the carrying amounts of assets and liabilities and their income tax bases, as well as from net operating loss and tax credit carryforwards. Our deferred tax assets continue to be fully offset by a valuation allowance, including deferred tax assets related to our net operating loss and tax credit carryforwards, which may be subject to annual limitations as a result of ownership changes that may have occurred or could occur in the future. Refer to Note 2. Summary of Significant Accounting Policies for further discussion of our significant accounting policies. LIQUIDITY AND CAPITAL RESOURCES Below is a summary of our cash, cash equivalents and short-term investments: December 31, Change 2025 vs. 2024 ($ in thousands) 2025 2024 $ % Cash and cash equivalents $ 67,999 $ 64,932 $ 3,067 5 % Short-term investments 196,690 185,168 11,522 6 % Total liquid funds $ 264,689 $ 250,100 $ 14,589 6 % We regularly assess our cash position and our working capital needs to execute our strategy. We have historically funded our operations primarily from product sales, sales of our common stock, funds from our loan agreements with SLR, funds from our collaboration partnerships, as well as the sale of future royalties and commercialization milestones to HCR. We expect that we will increasingly rely on cash generated from our commercial operations to fund our operating plan while maintaining financial flexibility to source cash from future equity sales and debt financing. Sources of Liquidity In January 2023, we entered into the 2023 Open Market Sales Agreement with Jefferies with respect to an “at-the-market offering” program, which was established under the Company’s shelf registration statement on Form S-3 and expired in January 2026. Under the 2023 Open Market Sales Agreement, we sold a total of 16.8 million shares of our common stock and received gross proceeds of $70.0 million at a weighted average sales price of approximately $4.17. During the year ended December 31, 2025, we did not sell any shares under the 2023 Open Market Sales Agreement. In November 2025, we filed an automatic shelf registration statement on Form S-3ASR, which became effective upon filing, containing (i) a base prospectus, which covers the offering, issuance and sale from time to time in one or more offerings of our common stock, preferred stock, debt securities, warrants and/or units; and (ii) a prospectus supplement for the offering, issuance and sale of up to a maximum aggregate offering price of $100.0 million of our common stock that may be issued and sold from time to time, under the 2025 Open Market Sales Agreement, deemed to be “at-the-market offerings.” Pursuant to the 65 Table of Contents 2025 Open Market Sales Agreement, Jefferies, as sales agent, may receive a commission of up to three percent of the gross sales price for shares of our common stock sold under the 2025 Open Market Sales Agreement. As of December 31, 2025, there have been no sales of our common stock under the 2025 Open Market Sales Agreement. We have a loan and security agreement (as amended, the 2022 Loan Agreement) with SLR. The 2022 Loan Agreement provides a total of $300.0 million, of which $200.0 million has been drawn and is outstanding as of December 31, 2025, including $50.0 million of the Term E Loan drawn during the 2025 second quarter. The additional available borrowings of $100.0 million consist of the Term F Loan and the Term G Loan, each in the amount of $50.0 million. The Term F Loan and the Term G Loan may be drawn at the Company’s election by June 30, 2026 and December 20, 2026, respectively. See Note 9. Borrowing for further discussion. Cash Flow Activities The following table summarizes our cash flows activities: Year Ended December 31, Change 2025 vs. 2024 ($ in thousands) 2025 2024 $ % Net cash used in operating activities $ (42,483) $ (44,809) $ 2,326 (5) % Net cash used in investing activities (8,959) (18,318) 9,359 (51) % Net cash provided by financing activities 54,509 106,589 (52,080) (49) % Net increase in cash and cash equivalents $ 3,067 $ 43,462 $ (40,395) (93) % Cash Flows from Operating Activities Cash flows from operating activities represent the cash receipts and payments related to all of our activities other than investing and financing activities. Net operating cash flow is derived by adjusting our net loss for non-cash operating items and changes in operating assets and liabilities resulting from timing differences between the cash receipts and payments and when the transactions are recognized in our result of operations. As a result, changes in net operating cash flow reflect, among other things, the timing of (i) cash collections from our Customers and (ii) payments made in the normal course of business such as payments to suppliers, including our CMOs, CROs and government agencies. Net cash used in operating activities in 2025 was materially unchanged compared to 2024, primarily due to the increased cash inflows generated from our product sales and timing of cash collections from our Customers exceeded the increased payments made in the normal course of business to support our commercial growth and research and development activities. Cash Flows from Investing Activities Cash flows from investing activities include cash used for capital expenditures and purchases of short-term investments as well as net proceeds from asset dispositions and maturities of short-term investments. Net cash used in investing activities in 2025 primarily reflected our short-term investment maturities and purchases. Cash Flows from Financing Activities Cash flows from financing activities include net proceeds associated with our loan agreements, sales of our common stock with respect to the “at-the-market offering” programs and issuances of our common stock under our equity incentive plans. Net cash provided by financing activities in 2025 included $48.7 million received from the Term E Loan, net of costs and $5.8 million received from the issuance of our common stock under our equity incentive plans, which was lower than $99.5 million received from the Term C Loan and Term D Loan, net of costs and $8.1 million received from the issuance of our common stock under our equity incentive plans in 2024. 66 Table of Contents Funding Requirements Based on our current operating model, we believe our available cash, cash equivalents and short-term investments as of December 31, 2025 will be sufficient to fund our planned operations for at least a period of one year from the issuance of these financial statements. We have based this estimate on assumptions that may prove to be wrong and we could utilize our available capital resources sooner than we currently expect. In particular, our operating plan may change and we may require significant additional capital to fund our operations. There are no assurances that our efforts to meet our operating cash flow requirements will be successful. If our current cash, cash equivalents and short-term investments as well as our plans to meet our operating cash flow requirements are not sufficient to fund necessary expenditures and meet our obligations following the issuance of these financial statements, our liquidity, financial condition and business prospects will be materially affected. Our future funding requirements will depend on many factors as described in Part I, Item 1A, “Risk Factors,” of this Annual Report on Form 10-K. Contract Obligations and Commitments As of December 31, 2025, our total future payment obligation related to the outstanding balance of the term loans, excluding interest payments, was $209.9 million, which is due on July 1, 2028. See Note 9. Borrowing for further information on our long-term debt. We have entered into various operating leases for our offices. As of December 31, 2025, our total undiscounted obligation for operating leases was $5.6 million, with maturities ranging up through July 2029. See Note 11. Leases for further information on our operating leases. We enter into a variety of contracts in the normal course of business. These contracts generally allow us to terminate on notice, reschedule or adjust our requirements based on our business needs prior to the delivery of goods or performance of services.