PROKIDNEY CORP. 10-K

Item 9A . Controls and Procedures. Evaluation of Disclosure Controls and Procedures Under the supervision and with the participation of our Chief Executive Officer and Chief Financial Officer, management has evaluated the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rules 13a-15(e) or 15d-15(e) of the Securities Exchange Act of 1934) as of December 31, 2025. Based upon that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that, as of December 31, 2025, our disclosure controls and procedures were effective in causing 93 material information relating to us (including our consolidated subsidiaries) to be recorded, processed, summarized and reported by management on a timely basis and to ensure the quality and timeliness of our public disclosures with SEC disclosure obligations. Our management, including our Chief Executive Officer and Chief Financial Officer, does not expect that our disclosure controls and procedures will prevent all errors and all fraud. A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, with the Company have been detected. These inherent limitations include the realities that judgments in decision-making can be faulty and that breakdowns can occur because of simple error and mistake. Additionally, controls can be circumvented by the individual acts of some persons, by collusion of two or more people or by management override of controls. The design of any system of controls also is based in part upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions. Over time, a control may become inadequate because of changes in conditions or because the degree of compliance with the policies or procedures may deteriorate. Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and may not be detected. Management’s Annual Report on Internal Control Over Financial Reporting Management is responsible for establishing and maintaining adequate internal control over financial reporting as defined in Rule 13a-15(f) under the Exchange Act. Our internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external reporting purposes in accordance with generally accepted accounting principles. Our internal control over financial reporting includes those written policies and procedures that: • pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of assets; • provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles; • provide reasonable assurance that receipts and expenditures are being made only in accordance with management and director authorization; and • provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of assets that could have a material effect on the consolidated financial statements. Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate. Management assessed the effectiveness of our internal control over financial reporting as of December 31, 2025. Management based this assessment on criteria described in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Based on this assessment, management determined that as of December 31, 2025, we maintained effective internal control over financial reporting. Changes in Internal Control over Financial Reporting There have been no changes in our internal control over financial reporting during our most recent fiscal quarter that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting. Item 9B . Other Information. During the quarter ended December 31, 2025 , none of the Company’s directors or officers adopted or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as those terms are defined in Regulation S-K, Item 408, that was intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections. Not applicable. 94 PA RT III Item 10 . Directors, Executive Officers and Corporate Governance. The information required by this item is incorporated by reference from the discussion responsive thereto under the headings “Management and Corporate Governance,” “Delinquent Section 16(a) Reports,” and “Code of Ethics and Business Conduct” in our Proxy Statement for the 2026 Annual Meeting of Shareholders to be filed with the SEC within 120 days of the fiscal year ended December 31, 2025. If the Proxy Statement is not filed within 120 days after the end of our fiscal year ended December 31, 2025, the information required by this item will be contained in the Form 10-K/A. Item 11. Executive Compensation. The information required by this item is incorporated by reference from the discussion responsive thereto under the heading “Executive Officer and Director Compensation” in our Proxy Statement for the 2026 Annual Meeting of Shareholders to be filed with the SEC within 120 days of the fiscal year ended December 31, 2025. If the Proxy Statement is not filed within 120 days after the end of our fiscal year ended December 31, 2025, the information required by this item will be contained in the Form 10-K/A. Item 12 . Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters. The information required by this item is incorporated by reference from the discussion responsive thereto under the headings “Security Ownership of Certain Beneficial Owners and Management” and “Equity Compensation Plan Information” in our Proxy Statement for the 2026 Annual Meeting of Shareholders to be filed with the SEC within 120 days of the fiscal year ended December 31, 2025. If the Proxy Statement is not filed within 120 days after the end of our fiscal year ended December 31, 2025, the information required by this item will be contained in the Form 10-K/A. Item 13 . Certain Relationships and Related Transactions, and Director Independence. The information required by this item is incorporated by reference from the discussion responsive thereto under the headings “Certain Relationships and Related Party Transactions” and “Management and Corporate Governance” in our Proxy Statement for the 2026 Annual Meeting of Shareholders to be filed with the SEC within 120 days of the fiscal year ended December 31, 2025. If the Proxy Statement is not filed within 120 days after the end of our fiscal year ended December 31, 2025, the information required by this item will be contained in the Form 10-K/A. Item 14 . Principal Accounting Fees and Services. The information required by this item is incorporated by reference from the discussion responsive thereto under the heading “Ratification of Selection of Independent Registered Public Accounting Firm” in our Proxy Statement for the 2026 Annual Meeting of Shareholders to be filed with the SEC within 120 days of the fiscal year ended December 31, 2025. If the Proxy Statement is not filed within 120 days after the end of our fiscal year ended December 31, 2025, the information required by this item will be contained in the Form 10-K/A. 95 PART IV Item 15 . Exhibits and Financial Statement Schedules. (a)(1) Financial Statements The following documents are included on pages F-1 through F-26 attached hereto and are filed as part of this Annual Report on Form 10-K: Report of Independent Registered Public Accounting Firm (PCAOB ID No. 42) F- 2 Consolidated Balance Sheets as of December 31, 2025 and 2024 F- 3 Consolidated Statements of Operations for the years ended December 31, 2025, 2024, and 2023 F- 4 Consolidated Statements of Comprehensive Loss for the years ended December 31, 2025, 2024, and 2023 F- 5 Consolidated Statements of Changes in Redeemable Noncontrolling Interest and Stockholders’ Deficit for the years ended December 31, 2025, 2024, and 2023 F- 6 Consolidated Statements of Cash Flows for the Years ended December 31, 2025, 2024, and 2023 F- 8 Notes to Consolidated Financial Statements F- 9 (a)(2) Financial Statement Schedules Not Applicable. (a)(3) List of Exhibits Exhibit Number Description 2.1 Business Combination Agreement, dated as of January 18, 2022, by and between ProKidney Corp. (formerly known as Social Capital Suvretta Holdings Corp. III) and ProKidney LP. (incorporated by reference from Exhibit 2.1 to Form 8-K filed with the SEC on January 21, 2022) (File No. 001-40560). 3.1 Certificate of Incorporation of ProKidney Corp. (incorporated by reference to Exhibit 3.1 of the Company's Current Report on Form 8-K12B, filed on July 3, 2025 (File No. 001-40560)). 3.2 Bylaws of ProKidney Corp. (incorporated by reference to Exhibit 3.2 of the Company's Current Report on Form 8-K12B, filed on July 3, 2025 (File No. 001-40560)). 3.3 Certificate of Corporate Domestication of ProKidney Corp. (incorporated by reference to Exhibit 3.3 of the Company's Current Report on Form 8-K12B, filed on July 3, 2025 (File No. 001-40560)). 4.1* Description of registered securities 4.2 Stock Certificate for Class A Common Stock ProKidney (incorporated by reference to Exhibit 4.1 of the Company's Current Report on Form 8-K12B, filed on July 3, 2025 (File No. 001-40560)). 4.3 Stock Certificate for Class B Common Stock ProKidney (incorporated by reference to Exhibit 4.2 of the Company's Current Report on Form 8-K12B, filed on July 3, 2025 (File No. 001-40560)). 10.1 Amended and Restated Registration Rights Agreement, dated as of July 11, 2022, by and among ProKidney Corp. (formerly known as Social Capital Suvretta Holdings Corp. III), SCS Sponsor III LLC, the ProKidney Holders (as defined therein), Marc Semigran, Uma Sinha, Sukumar Nagendran, David Spiegel and the Investor Stockholders (as defined therein) (incorporated by reference from Exhibit 10.4 to Form 8-K filed with the SEC on July 15, 2022) (File No. 001-40560). 10.2 ProKidney Corp. 2022 Incentive Equity Plan (incorporated by reference from Exhibit 10.11 to Form 8-K filed with the SEC on July 15, 2022) (File No. 001-40560). 10.3 ProKidney Corp. Employee Stock Purchase Plan (incorporated by reference from Exhibit 10.12 to Form 8-K filed with the SEC on July 15, 2022) (File No. 001-40560). 10.4† Form of Director Stock Option Award (incorporated by reference from Exhibit 10.17 to Form 10-K filed with the SEC on March 28, 2023) (File No. 001-40560). 10.5† Form of Employee Incentive Stock Option Award (incorporated by reference from Exhibit 10.18 to Form 10-K filed with the SEC on March 28, 2023) (File No. 001-40560). 10.6†* ProKidney Short Term Incentive Performance Plan. 96 10.7 Consulting Services Agreement, dated as of January 1, 2020 between ProKidney (formerly known as RegenMed (Cayman) Ltd. (d/b/a inRegen)) and Nefro Health (incorporated by reference from Exhibit 10.30 to Form 10-K filed with the SEC on March 28, 2023) (File No. 001-40560) 10.8 Consulting Services Agreement, dated as of January 1, 2020 between ProKidney, LLC (formerly known as Twin City Bio LLC) and Nefro Health (incorporated by reference from Exhibit 10.31 to Form 10-K filed with the SEC on March 28, 2023) (File No. 001-40560). 10.9 Form of Share Purchase Agreement by and between the Company and certain investors, dated June 11, 2024. (incorporated by reference from Exhibit 10.1 to Form 8-K filed with the SEC on June 13, 2024) (File No. 001-40560) 10.10 Purchase and Sale Agreement by and between the ProKidney Acquisition Company, LLC and Breit SE Industrial Propco NC LP, dated November 20, 2024 (incorporated by reference from Exhibit 10.20 to Form 10-K filed with the SEC on March 17, 2025) (File No. 001-40560). 10.11* ProKidney Corp. Non-Employee Director Compensation Policy, as amended. 10.12 Assignment and Assumption of Purchase and Sale Agreement, dated November 25, 2024, by and among ProKidney Acquisition Company, LLC. and ProKidney Acquisition Company II, LLC (incorporated by reference from Exhibit 10.22 to Form 10-K filed with the SEC on March 17, 2025) (File No. 001-40560). 10.13 Amended and Restated Tax Receivable Agreement, dated July 1, 2025, by and among ProKidney and the TRA Parties (as defined therein) (incorporated by reference to Exhibit 10.1 of the Company's Current Report on Form 8-K12B, filed on July 3, 2025 (File No. 001-40560)). 10.14 Amended and Restated Lock-Up Agreement, dated July 1, 2025, by and among ProKidney and certain of the ProKidney Holders (as defined therein) (incorporated by reference to Exhibit 10.2 of the Company's Current Report on Form 8-K12B, filed on July 3, 2025 (File No. 001-40560)). 10.15 Amended and Restated Exchange Agreement, dated July 1, 2025, by and among ProKidney, ProKidney Holdings, LLC and the other members of ProKidney Holdings, LLC party thereto (incorporated by reference to Exhibit 10.3 of the Company's Current Report on Form 8-K12B, filed on July 3, 2025 (File No. 001-40560)). 10.16 First Amendment to the ProKidney Corp. Employee Stock Purchase Plan (incorporated by reference to Exhibit 10.4 of the Company's Current Report on Form 8-K12B, filed on July 3, 2025 (File No. 001-40560)). 10.17 First Amendment to the ProKidney Corp. 2022 Incentive Equity Plan (incorporated by reference to Exhibit 10.5 of the Company's Current Report on Form 8-K12B, filed on July 3, 2025 (File No. 001-40560)). 10.18 Form of Indemnification Agreement, dated July 1, 2025, by and among ProKidney and its directors and officers (incorporated by reference to Exhibit 10.6 of the Company's Current Report on Form 8-K12B, filed on July 3, 2025 (File No. 001-40560)). 10.19 Second Amended and Restated Limited Liability Company Agreement of ProKidney Holdings, dated July 1, 2025, by and among the members and managers party thereto (incorporated by reference to Exhibit 10.7 of the Company's Current Report on Form 8-K12B, filed on July 3, 2025 (File No. 001-40560)). 10.20† Employment Agreement, dated as of May 12, 2025 by and between Bruce Culleton, M.D. and ProKidney, LLC. (incorporated by reference from Exhibit 10.8 to Form 10-Q filed with the SEC on August 12, 2025 (File No. 001-40560)). 10.21† Employment Agreement, dated as of May 12, 2025 by and between James Coulston and ProKidney, LLC. (incorporated by reference from Exhibit 10.9 to Form 10-Q filed with the SEC on August 12, 2025 (File No. 001-40560)). 10.22† Employment Agreement, dated as of May 9, 2025 by and between Todd Girolamo and ProKidney, LLC. (incorporated by reference from Exhibit 10.10 to Form 10-Q filed with the SEC on August 12, 2025 (File No. 001-40560)). 10.23† Employment Agreement, dated as of June 11, 2025 by and between Darin Weber and ProKidney, LLC. (incorporated by reference from Exhibit 10.11 to Form 10-Q filed with the SEC on August 12, 2025 (File No. 001-40560)). 10.24 Open Market Sale Agreement SM dated July 14, 2025, by and between ProKidney Corp. and Jefferies LLC (incorporated by reference from Exhibit 1.1 to Form 8-K filed with the SEC on July 14, 2025 (File No. 001-40560)). 10.25* Purchase and Sale Agreement by and between the ProKidney Acquisition Company, LLC and Northpoint Development Group, LLC, dated October 17, 2025. 19.1 Insider Trading Policy (incorporated by reference from Exhibit 19.1 to Form 10-K filed with the SEC on March 17, 2025) (File No. 001-40560)) 21.1* Subsidiaries of the Registrant 23.1* Consent of Ernst & Young LLP 97 31.1* Certification of Principal Executive Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. 31.2* Certification of Principal Financial Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. 32.1* Certification of Principal Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. 32.2* Certification of Principal Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. 97 ProKidney Corp. Clawback Policy (incorporated by reference from Exhibit 97 to Form 10-K filed with the SEC on March 22, 2024) (File No. 001-40560). 101* The following materials from the Company’s Annual Report on Form 10-K for the year ended December 31, 2025, formatted in iXBRL (Inline Extensible Business Reporting Language): (i) Consolidated Balance Sheets, (ii) Consolidated Statements of Operations, (iii) Consolidated Statements of Comprehensive Loss, (iv) Consolidated Statements of Changes in Redeemable Noncontrolling Interest and Stockholders’ Deficit, (v) Consolidated Statements of Cash Flows and (vi) Notes to Consolidated Financial Statements, tagged as blocks of text and including detailed tags. 104* The cover page from this Annual Report on Form 10-K for the year ended December 31, 2025, formatted in Inline XBRL. † Management contract or compensatory plan or arrangement * Filed herewith. Item 16 . Form 10-K Summary None. 98 SIGNATURES Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this Report to be signed on its behalf by the undersigned, thereunto duly authorized . PROKIDNEY CORP. Date: March 18, 2026 By: /s/ Bruce Culleton Bruce Culleton Chief Executive Officer Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, this Report has been signed below by the following persons on behalf of the Registrant in the capacities and on the dates indicated. Name Title Date /s/ Bruce Culleton Chief Executive Officer and Director March 18, 2026 Bruce Culleton (Principal Executive Officer) /s/ James Coulston Chief Financial Officer March 18, 2026 James Coulston (Principal Financial and Accounting Officer) /s/ Pablo Legorreta Chairman March 18, 2026 Pablo Legorreta /s/ William F. Doyle Director March 18, 2026 William F. Doyle /s/ Jennifer Fox Director March 18, 2026 Jennifer Fox /s/ José Ignacio Jimenez Santos Director March 18, 2026 José Ignacio Jimenez Santos /s/ Alan M. Lotvin, M.D. Director March 18, 2026 Alan M. Lotvin, M.D. /s/ Brian J.G. Pereira, M.D. Director March 18, 2026 Brian J.G. Pereira, M.D. /s/ Uma Sinha, Ph.D. Director March 18, 2026 Uma Sinha, Ph.D. 99 INDEX TO CONSOLIDATED FINANCIAL STATEMENTS Report of Independent Registered Public Accounting Firm (PCAOB ID:42) F- 2 Consolidated Balance Sheets as of December 31, 2025 and 2024 F- 3 Consolidated Statements of Operations for the years ended December 31, 2025, 2024, and 2023 F- 4 Consolidated Statements of Comprehensive Loss for the years ended December 31, 2025, 2024, and 2023 F- 5 Consolidated Statements of Changes in Redeemable Noncontrolling Interest and Stockholders’ Deficit for the years ended December 31, 2025, 2024, and 2023 F- 6 Consolidated Statements of Cash Flows for the years ended December 31, 2025, 2024, and 2023 F- 8 Notes to Consolidated Financial Statements F- 9 F- 1 Rep ort of Independent Registered Public Accounting Firm To the Shareholders and the Board of Directors of ProKidney Corp. Opinion on the Financial Statements We have audited the accompanying consolidated balance sheets of ProKidney Corp. (the Company) as of December 31, 2025 and 2024, the related consolidated statements of operations, comprehensive loss, changes in redeemable noncontrolling interest and shareholders’ deficit and cash flows for each of the three years in the period ended December 31, 2025, and the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 31, 2025 and 2024, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2025 , in conformity with U.S. generally accepted accounting principles. Basis for Opinion These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB. We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control over financial reporting. Accordingly, we express no such opinion. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion. /s/ Ernst & Young LLP We have served as the Company’s auditor since 2019. Atlanta, Georgia March 18, 2026 F- 2 ProKidney Corp. Consolidated Balance Sheets (in thousands, except share data) December 31, 2025 December 31, 2024 Assets Cash and cash equivalents $ 108,537 $ 99,120 Marketable securities 161,480 259,172 Interest receivable 1,127 2,447 Prepaid assets 2,808 4,192 Prepaid clinical 3,923 11,505 Assets held for sale – 19,368 Other current assets 2,804 80 Total current assets 280,679 395,884 Fixed assets, net 51,231 42,222 Right of use assets, net 3,664 2,967 Total assets $ 335,574 $ 441,073 Liabilities and Stockholders' Deficit Accounts payable $ 940 $ 3,633 Lease liabilities 1,071 765 Accrued expenses and other 28,731 31,137 Income taxes payable – 682 Total current liabilities 30,742 36,217 Income tax payable, net of current portion 1,074 748 Lease liabilities, net of current portion 2,965 2,471 Total liabilities 34,781 39,436 Commitments and contingencies Redeemable noncontrolling interest 1,311,990 1,396,591 Stockholders’ deficit Class A common stock, $ 0.0001 par value; 700,000,000 and 500,000,000 shares authorized as of December 31, 2025 and December 31, 2024, respectively; 141,807,277 and 128,054,417 shares issued and outstanding as of December 31, 2025 and December 31, 2024, respectively 14 13 Class B common stock, $ 0.0001 par value; 500,000,000 shares authorized; 159,262,779 and 163,693,707 shares issued and outstanding as of December 31, 2025 and December 31, 2024, respectively 16 16 Additional paid-in capital 258,552 205,736 Accumulated other comprehensive gain 56 130 Accumulated deficit ( 1,269,835 ) ( 1,200,849 ) Total stockholders' deficit ( 1,011,197 ) ( 994,954 ) Total liabilities and stockholders' deficit $ 335,574 $ 441,073 The accompanying notes are an integral part of these consolidated financial statements. F- 3 ProKidney Corp. Consolidated Statements of Operations (in thousands, except for share and per share data) 2025 2024 2023 Revenue $ 893 $ 76 $ – Operating expenses Research and development 114,123 127,668 106,707 General and administrative 51,777 56,084 44,815 Total operating expenses 165,900 183,752 151,522 Operating loss ( 165,007 ) ( 183,676 ) ( 151,522 ) Other income (expense): Interest income 13,813 19,752 22,083 Interest expense ( 4 ) ( 9 ) ( 12 ) Net loss before income taxes ( 151,198 ) ( 163,933 ) ( 129,451 ) Income tax expense (benefit) 414 ( 598 ) 5,996 Net loss before noncontrolling interest ( 151,612 ) ( 163,335 ) ( 135,447 ) Net loss attributable to noncontrolling interest ( 82,626 ) ( 102,149 ) ( 99,979 ) Net loss available to Class A common stockholders $ ( 68,986 ) $ ( 61,186 ) $ ( 35,468 ) Weighted average shares of Class A common stock outstanding: Basic and diluted 133,942,736 97,916,193 61,714,225 Net loss per share attributable to Class A common stock: Basic and diluted $ ( 0.52 ) $ ( 0.62 ) $ ( 0.57 ) The accompanying notes are an integral part of these consolidated financial statements. F- 4 ProKidney Corp. Consolidated Statements of Comprehensive Loss (in thousands, except for share and per share data) Years Ended December 31, 2025 2024 2023 Net loss including noncontrolling interest $ ( 151,612 ) $ ( 163,335 ) $ ( 135,447 ) Other comprehensive income: Unrealized income (loss) on marketable securities ( 164 ) ( 200 ) 497 Other comprehensive income ( 164 ) ( 200 ) 497 Total comprehensive loss including noncontrolling interest ( 151,776 ) ( 163,535 ) ( 134,950 ) Less: Total comprehensive loss attributable to noncontrolling interest ( 82,716 ) ( 102,349 ) ( 99,612 ) Total comprehensive loss attributable to Class A common stockholders $ ( 69,060 ) $ ( 61,186 ) $ ( 35,338 ) The accompanying notes are an integral part of these consolidated financial statements. F- 5 ProKidney Corp. Consolidated Statements of Changes in Redeemable Noncontrolling Interest and Stockholders’ Deficit (in thousands, except for share and per share data) For the Years Ended December 31, 2025 Class A Common Stock Class B Common Stock Redeemable Noncontrolling Interest Shares Amount Shares Amount Additional Paid-in Capital Accumulated Other Comprehensive Gain Accumulated Deficit Total Stockholders' Deficit Balance as of December 31, 2022 $ 1,601,555 61,540,231 $ 6 171,578,320 $ 18 $ 7,476 $ – $ ( 1,104,116 ) $ ( 1,096,616 ) Equity-based compensation 7,005 – – – – 23,841 – – 23,841 Issuance of Class A common stock – 50,000 – – – – – – – Vesting of Class B restricted stock rights – – – 2,266,079 – – – – – Exchange of Class B common stock for Class A common stock ( 9,500 ) 5,546,483 1 ( 5,546,483 ) ( 1 ) 9,500 – – 9,500 Repurchase of Class A common stock – ( 7,256,367 ) ( 1 ) – – ( 9,498 ) – – ( 9,499 ) Impact of equity transactions on redeemable noncontrolling interest ( 4,795 ) – – – – 4,795 – – 4,795 Unrealized gain on marketable securities 367 – – – – – 130 – 130 Net loss ( 99,979 ) – – – – – – ( 35,468 ) ( 35,468 ) Change in redemption value of noncontrolling interest 79 – – – – – – ( 79 ) ( 79 ) Balance as of December 31, 2023 1,494,732 59,880,347 6 168,297,916 17 36,114 130 ( 1,139,663 ) ( 1,103,396 ) Equity-based compensation 4,863 – – – – 24,509 – – 24,509 Issuance of Class A common stock, net of offering costs – 62,087,817 6 – – 144,319 – – 144,325 Vesting of Class B restricted stock rights – – – 1,395,202 – – – – – Exchange of Class B common stock for Class A common stock ( 15,441 ) 5,999,411 1 ( 5,999,411 ) ( 1 ) 15,441 – – 15,441 Exercise of stock options – 86,842 – – – 139 – – 139 Impact of equity transactions on redeemable noncontrolling interest 14,786 – – – – ( 14,786 ) – – ( 14,786 ) Unrealized loss on marketable securities ( 200 ) – – – – – – – – Net loss ( 102,149 ) – – – – – – ( 61,186 ) ( 61,186 ) Balance as of December 31, 2024 $ 1,396,591 128,054,417 $ 13 163,693,707 $ 16 $ 205,736 $ 130 $ ( 1,200,849 ) $ ( 994,954 ) Equity-based compensation 2,979 – – – – 22,357 – – 22,357 Issuance of Class A common stock, net of offering costs – 7,452,342 1 – – 24,246 – – 24,247 Vesting of Class B restricted stock rights – – – 959,764 – – – – – Exchange of Class B common stock for Class A common stock ( 5,312 ) 5,390,692 – ( 5,390,692 ) – 5,312 – – 5,312 Exercise of stock options – 909,826 – – – 1,349 – – 1,349 Impact of equity transactions on redeemable noncontrolling interest 448 – – – – ( 448 ) – – ( 448 ) Unrealized loss on marketable securities ( 90 ) – – – – – ( 74 ) – ( 74 ) Net loss ( 82,626 ) – – – – – – ( 68,986 ) ( 68,986 ) Balance as of December 31, 2025 $ 1,311,990 141,807,277 $ 14 159,262,779 $ 16 $ 258,552 $ 56 $ ( 1,269,835 ) $ ( 1,011,197 ) F- 6 The accompanying notes are an integral part of these consolidated financial statements. F- 7 ProKidney Corp. Consolidated Statements of Cash Flows (in thousands) Years Ended December 31, 2025 2024 2023 Cash flows from operating activities Net loss before noncontrolling interest $ ( 151,612 ) $ ( 163,335 ) $ ( 135,447 ) Adjustments to reconcile net loss before noncontrolling interest to net cash flows used in operating activities: Depreciation and amortization 6,575 5,432 3,853 Equity-based compensation 25,336 29,372 30,846 Gain on marketable securities, net ( 3,417 ) ( 6,995 ) ( 6,018 ) Loss (gain) on lease disposition ( 29 ) ( 161 ) – Impairment of long-lived assets 318 5,324 – Loss on disposal of equipment 1,431 56 23 Changes in operating assets and liabilities Interest receivable 1,320 ( 1,072 ) ( 1,375 ) Prepaid and other assets 6,236 ( 5,955 ) 4,648 Accounts payable and accrued expenses ( 5,919 ) 11,592 11,639 Income taxes payable ( 356 ) ( 609 ) 1,762 Net cash flows used in operating activities ( 120,117 ) ( 126,351 ) ( 90,069 ) Cash flows from investing activities Proceeds from sale of facility 18,215 – – Purchases of marketable securities ( 217,076 ) ( 324,023 ) ( 471,604 ) Sales and maturities of marketable securities 318,022 373,946 175,818 Purchase of equipment and facility expansion ( 15,196 ) ( 29,509 ) ( 34,197 ) Net cash flows provided by (used in) investing activities 103,965 20,414 ( 329,983 ) Cash flows from financing activities Proceeds from sales of Class A common stock, net of offering costs 24,247 144,322 – Payments on finance leases ( 26 ) ( 54 ) ( 52 ) Exercise of stock options 1,348 140 – Repurchase of Class A common stock – – ( 9,499 ) Net cash flows provided by (used in) financing activities 25,569 144,408 ( 9,551 ) Net change in cash and cash equivalents 9,417 38,471 ( 429,603 ) Cash, beginning of period 99,120 60,649 490,252 Cash, end of period $ 108,537 $ 99,120 $ 60,649 Supplemental disclosure of non-cash investing and financing activities: Right of use assets obtained in exchange for lease obligations $ 2,005 $ 2,621 $ 2,594 Exchange of Class B common stock $ 5,311 $ 15,442 $ 9,500 Impact of equity transactions and compensation on redeemable noncontrolling interest $ 3,426 $ 19,448 $ 2,577 Change in redemption value of noncontrolling interest $ – $ – $ 79 Equipment and facility expansion included in accounts payable and accrued expenses $ 131 $ 347 $ 218 The accompanying notes are an integral part of these consolidated financial statements. F- 8 ProKidney Corp. Notes to Consolidated Financial Statements Note 1: Description of Business and Basis of Presentation Description of Business ProKidney Corp. (the “Company”, “ProKidney Delaware” or “ProKidney”) was originally incorporated as Social Capital Suvretta Holdings Corp. III (“SCS”). SCS was a blank check company incorporated as a Cayman Islands exempted company on February 25, 2021 . SCS was incorporated for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses. On January 18, 2022, SCS executed a definitive business combination agreement (the “Business Combination Agreement”), with ProKidney LP (“PKLP”), a limited partnership under the laws and regulations of Ireland. Pursuant to the terms of the Business Combination Agreement, PKLP became a subsidiary of SCS and was organized in an umbrella partnership corporation (“Up-C”) structure, which would provide potential future tax benefits for SCS when the equity holders ultimately exchanged their pass-through interests for Class A common stock. The business combination between SCS and PKLP (the “Business Combination”) closed (the “Closing”) on July 11, 2022 (the “Closing Date”). Upon consummation of the transaction, SCS changed its name to ProKidney Corp. The Business Combination was accounted for as a reverse recapitalization transaction between entities under common control, through which PKLP was considered the accounting acquiror and predecessor entity. The Business Combination was reflected as the equivalent of PKLP issuing stock for the net assets of SCS accompanied by a recapitalization with no goodwill or intangible assets recognized. Effective July 1, 2025 (the “Domestication Date”), the Company completed a domestication process through which it changed its jurisdiction of incorporation from the Cayman Islands to the State of Delaware (the “Domestication”). ProKidney Corp., the Cayman Islands exempted company (“ProKidney Cayman”) deregistered as an exempted company in the Cayman Islands pursuant to Sections 206 and 207 of the Companies Act (as amended) of the Cayman Islands (the “Companies Act”), and domesticated and continued its existence as a corporation incorporated in the State of Delaware pursuant to Section 388 of the General Corporation Law of the State of Delaware (the “DGCL”), effective as of the Domestication Date. In connection with the Domestication, the Company also completed certain other restructuring transactions (such transactions, together with the Domestication, the “Restructuring”) on the Domestication Date. Prior to the Restructuring, ProKidney Cayman. conducted its business indirectly through PKLP and its subsidiaries. As part of the Restructuring, (i) PKLP contributed substantially all of its assets to a newly formed subsidiary, ProKidney Holdings, LLC, a Delaware limited liability company (“PK Holdings”) (other than its limited liability company interests in PK Holdings), (ii) PKLP commenced winding-up and made a liquidating distribution of its limited liability company interests in PK Holdings to its partners, including ProKidney Cayman., in redemption of their interests in PKLP, and (iii) ProKidney Corp. GP Limited, the general partner of PKLP, sold its nominal economic interest in PK Holdings received in such liquidating distribution to ProKidney Cayman. (collectively, the “Substitution”). Immediately following the Domestication, ProKidney (“ProKidney-KY”), then a wholly owned subsidiary of PK Holdings and a Cayman Islands exempted company, re-registered as a Cayman Islands limited liability company and then deregistered as a limited liability company in the Cayman Islands and registered by way of continuation out for purposes of the Limited Liability Companies Act (as amended) of the Cayman Islands and domesticated and continued for purposes of the Delaware Limited Liability Company Act as a Delaware limited liability company named ProKidney IPCo, LLC (“ProKidney IPCo”). As a result of the consummation of the Domestication and the other transactions involved in the Restructuring, the Company and the other former limited partners of PKLP are now members of PK Holdings, and PK Holdings owns all of the subsidiaries that conduct the Company’s business, including ProKidney IPCo. In connection with the Domestication and the other Restructuring transactions, the Company amended and restated certain of its material agreements, each originally dated July 11, 2022, on substantially similar terms in order to reflect updates to the Company’s corporate structure resulting from the Restructuring. These amended and restated agreements included: (i) an Amended and Restated Tax Receivable Agreement, (ii) an Amended and Restated Lock-Up Agreement, and (iii) an Amended and Restated Exchange Agreement. In addition, on the Domestication Date, the Company, together with the other former limited partners of PKLP entered into the Second Amended and Restated Limited Liability Company Agreement of PK Holdings to provide for the governance of PK Holdings and reflect the changes to its capital structure resulting from the Restructuring. After completing the Domestication and other Restructuring transactions, the Company also underwent a series of transactions to streamline its operating subsidiaries from a tax perspective (the “Post-Domestication Reorganization”). The Post-Domestication Reorganization was finalized effective as of September 1, 2025. The Domestication represents a transaction between entities under common control. Assets and liabilities transferred between entities under common control are accounted for at cost. Accordingly, the assets and liabilities of ProKidney Corp. (Delaware) and its subsidiaries will be reflected at their historical carrying amounts of ProKidney Corp. (Cayman) as of the Domestication Date. Further, F- 9 the Domestication and Post-Domestication Reorganization transactions did not have a significant impact on the Consolidated Financial Statements as of and for the year ended December 31, 2025. For presentation purposes, unless otherwise noted, references to common stock refer to “ordinary shares” before the Domestication and “common stock” subsequent to the Domestication. Similarly, unless otherwise noted, references to PK Holdings herein refers to PKLP prior to the Domestication and PK Holdings subsequent to the Domestication and references to ProKidney IPCo. herein refer to ProKidney-KY prior to the Domestication and ProKidney IPCo. subsequent to the Domestication. ProKidney Corp., through its operating subsidiaries, is focused on the development of rilparencel, which has the potential to preserve kidney function in patients with advanced CKD and type 2 diabetes. The Company’s operations are principally managed as a single operating segment. Principles of Consolidation ProKidney is a holding company, and its principal asset is a controlling equity interest in PK Holdings and its wholly-owned operating subsidiaries ProKidney IPCo. and ProKidney-US. The Company has determined that PK Holdings is a variable-interest entity for accounting purposes and that ProKidney is the primary beneficiary of PK Holdings because (through its managing member interest in PK Holdings and the fact that the senior management of ProKidney is also the senior management of PK Holdings) it has the power and benefits to direct all of the activities of PK Holdings, which include those that most significantly impact PK Holdings’ economic performance. The Company has therefore consolidated PK Holdings’ results pursuant to Accounting Standards Codification Topic 810, “Consolidation” in its Condensed Consolidated Financial Statements. As of December 31, 2025 , various holders own non-voting interests in PK Holdings, representing a 52.9 % economic interest in PK Holdings, effectively restricting ProKidney’s interest to 47.1 % of PK Holdings’ economic results, subject to increase in the future, should ProKidney purchase additional non-voting common units (“PK Holdings Units”) of PK Holdings, or should the holders of PK Holdings Units decide to exchange such units (together with shares of Class B common stock) for Class A common stock (or cash) pursuant to the Exchange Agreement (as defined in Note 6). The Company will not be required to provide financial or other support for PK Holdings. However, ProKidney will control its business and other activities through its managing member interest in PK Holdings, and its management is the management of PK Holdings. Nevertheless, because ProKidney will have no material assets other than its interests in PK Holdings and its subsidiaries, any financial difficulties at PK Holdings could result in ProKidney recognizing a loss. All intercompany transactions and balances have been eliminated. Reclassifications To facilitate comparison of information across periods, certain reclassifications have been made to prior period amounts to conform to the current period’s presentation. Note 2: Significant Accounting Policies Use of Estimates The preparation of consolidated financial statements, in accordance with GAAP, requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the consolidated financial statements, and the amounts of expenses during the reported periods. Certain estimates in these consolidated financial statements have been made in connection with the calculation of research and development expenses, equity-based compensation expense and the provision for or benefit from income taxes. The Company bases its estimates on historical experience and various other assumptions, including in certain circumstances future projections, which management believes to be reasonable under the circumstances. Actual results could differ from those estimates. Changes in estimates are reflected in reported results in the period in which they become known. Cash Equivalents and Marketable Securities The Company considers all highly liquid investments with an original maturity of 90 days or less on the date of purchase to be cash equivalents. The carrying value of cash and cash equivalents approximates fair value due to the short-term nature of these items. The Company’s investments in marketable debt securities have been classified and accounted for as available-for-sale. The Company classifies its marketable debt securities as short-term due to its availability for use in its current operations. The cost of securities sold is determined using the specific identification method. The Company considers all available evidence to evaluate if a credit loss exists, and if so, recognizes an allowance for credit loss. F- 10 Concentrations of Credit Risk Cash and equivalents are the primary financial instruments held by the Company that are potentially subject to concentrations of credit risk. The Company’s cash and equivalents are deposited in accounts at large financial institutions, and such amounts may exceed federally insured limits. Accrued Expenses Accrued expenses as presented in the Consolidated Balance Sheets as of December 31, 2025 and December 31, 2024 consisted of the following (in thousands): December 31, 2025 December 31, 2024 Compensation $ 11,388 $ 10,217 Severance 449 1,236 Clinical study related costs 13,655 16,452 Facility related costs 1,151 369 Accrued legal costs 204 395 Accrued consulting and professional fees 1,217 557 Other accrued expenses 667 1,911 Total accrued expenses and other $ 28,731 $ 31,137 Research and Development Costs Research and development costs are expensed as incurred. Research and development expenses are comprised of costs incurred in performing research and development activities, including salaries, benefits, third party license fees, and external costs of outside vendors engaged to conduct manufacturing and preclinical development activities and clinical trials. The Company records accruals based on estimates of services received, efforts expended, and amounts owed pursuant to contracts with numerous contract research organizations. In the normal course of business, the Company contracts with third parties to perform various clinical study activities in the ongoing development of potential products. The financial terms of these agreements are subject to negotiation and variation from contract to contract and may result in uneven payment flows. Payments under the contracts depend on factors such as the achievement of certain events and the completion of portions of the clinical study or similar conditions. The objective of the Company’s accrual policy is to match the recording of expenses in its financial statements to the actual services received and efforts expended. As such, expense accruals related to clinical studies are recognized based on the company’s estimate of the degree of completion of the event or events specified in the specific clinical study. The Company records nonrefundable advance payments it makes for future research and development activities as prepaid expenses. Prepaid expenses are recognized as expense in the Consolidated Statement of Operations and Comprehensive Loss as the Company receives the related goods or services. Costs incurred in obtaining technology licenses are charged to research and development expense as purchased in-process research and development if the technology licensed has not reached technological feasibility and has no alternative future use. Fixed Assets Fixed assets are stated at cost, less accumulated depreciation. Generally, expenditures for maintenance and repairs are charged to expense and major improvements or replacements are capitalized. The Company computes depreciation and amortization using the straight-line method over the estimated useful life of the asset. Leasehold improvements are amortized over the lesser of, the life of the lease or the estimated useful life of the leasehold improvement. The estimated useful lives are as follows: Buildings 25 - 30 years Computer equipment and software 3 - 5 years Furniture and equipment 5 - 7 years Leasehold improvements remainder of lease term F- 11 Fixed assets consisted of the following (in thousands): December 31, 2025 December 31, 2024 Land $ 1,405 $ 1,405 Buildings 21,095 21,095 Leasehold improvements 22,263 21,822 Furniture and equipment 7,031 5,647 Computer equipment and software 1,284 838 Construction in progress 14,705 2,447 Less: accumulated depreciation ( 16,552 ) ( 11,032 ) Total fixed assets, net $ 51,231 $ 42,222 Depreciation expense for the years ended December 31, 2025, 2024 and 2023 was $ 5,722,000 , $ 4,337,000 , and $ 2,956,000 , respectively. Intangible Assets Intangible assets were comprised of acquired assembled workforce, which are accounted for in accordance with ASC 350 - Intangibles - Goodwill and Other. The acquired assembled workforce was amortized on a straight-line basis over the useful life of five years. Amortization expense relating to the assembled workforce intangible asset was $ 213,000 for the year ended December 31, 2023. There was no amortization for the years ended December 31, 2025 and 2024 as these assets were fully amortized in the prior year. Impairment of Long-Lived Assets and Assets Held for Sale Long-lived assets such as fixed assets and intangible assets subject to amortization are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount of an asset exceeds its estimated future cash flows, an impairment charge is recognized for the amount by which the carrying amount of the asset exceeds the fair value of the asset. Due to a change in the planned use for the Company’s real property located in Greensboro, North Carolina (the “Greensboro Facility”), the Company performed an impairment analysis to compare the building’s carrying value with its estimated fair value. The fair value was determined through review of prices for similar assets and expected ranges of prices that the Company may be expected to receive upon sale of the property which are considered Level 3 inputs under the fair value hierarchy. This analysis resulted in the recognition of a non-cash impairment charge of $ 5,324,000 during the year ended December 31, 2024. During 2024, the Company determined that its Greensboro Facility met the criteria for held-for-sale accounting treatment after making the decision to sell the property. As the carrying value of the property, as adjusted for the impairment described above is less than the amount of the expected proceeds less the costs of disposal, the carrying value of the property was not adjusted in connection with this determination. The carrying value of this asset has been reflected as a component of total current assets in the accompanying Consolidated Balance Sheet as of December 31, 2024. During 2025, the Company recorded a n impairment charge of $ 318,000 due to expected changes in the amounts expected to be received upon sale of the Greensboro facility. The impairment charges recognized during the years ended 2025 and 2024 were recorded as a component of general and administrative expenses in the accompanying Consolidated Statement of Operations. No impairment charges were recorded for the year ended December 31, 2023. Upon the sale of the Greensboro Facility in November 2025, there was no further gain/loss recognized and the related asset was derecognized. As such, no assets were classified as held for sale as of December 31, 2025. Income Taxes The Company uses the liability method in accounting for income taxes as required by ASC Topic 740 — Income Taxes, under which deferred tax assets and liabilities are recorded for the future tax consequences attributable to the differences between the financial statements carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in the results of operations in the period that includes the enactment date. A valuation allowance is recorded to reduce the carrying amounts of deferred tax assets unless it is more likely than not that such assets will be realized. The ultimate realization of deferred tax assets is F- 12 dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considers the scheduled reversal of deferred tax liabilities, available taxes in the carryback periods, projected future taxable income and tax planning strategies in making this assessment. Accordingly, the Company has provided a full valuation allowance to offset the net deferred tax assets at December 31, 2025 and December 31, 2024. Interest and penalties related to income taxes are included in the benefit (expense) for income taxes in the Company’s Consolidated Statements of Operations and Comprehensive Loss. The Company has not incurred any significant interest or penalties related to income taxes in any of the periods presented. Fair Value Measurements Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. A three‑level fair value hierarchy that prioritizes the inputs used to measure fair value is described below. The three levels of inputs used to measure fair value are as follows: • Level 1 – Unadjusted quoted prices in active markets for identical assets or liabilities • Level 2 – Inputs other than quoted prices included within Level 1 that are either directly or indirectly observable through correlation with market data • Level 3 – Unobservable inputs that are supported by little or no market data, which require the reporting entity to develop its own assumptions For assets and liabilities recorded at fair value, it is the Company’s policy to maximize the use of observable inputs and minimize the use of unobservable inputs when developing fair value measurements, in accordance with the fair value hierarchy. Fair value measurements for assets and liabilities where there exists limited or no observable market data are based primarily upon estimates and are often calculated based on the economic and competitive environment, the characteristics of the asset or liability and other factors. Therefore, fair value measurements cannot be determined with precision and may not be realized in an actual sale or immediate settlement of the asset or liability. Additionally, there may be inherent weaknesses in any calculation technique and changes in the underlying assumptions used, including discount rates and estimates of future cash flows, could significantly affect the calculated current or future fair values. The Company utilizes fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. The carrying values of cash equivalents, accounts payable, and accrued liabilities approximate fair value due to the short‑term nature of these instruments. Leases The Company determines if an arrangement is a lease at inception. Balances recognized related to the Company’s operating and finance leases are included in right-of-use assets, net and lease liabilities in the Consolidated Balance Sheets. Right of use assets and lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. Variable payments directly related to the use of the assets and future adjustments of payments based on indices are recognized in the period of incurrence or change and are not included in the lease payments at the initial measurement date. Lease terms may include options to extend or terminate the lease if it is reasonably certain that the Company will exercise the option. As most of the Company’s leases do not provide an implicit rate, the Company uses its incremental borrowing rate based on the information available at the commencement date in determining the present value of future payments. The right of use asset also includes any lease payments made and excludes lease incentives and initial direct costs incurred. The Company has elected a practical expedient to not separate its lease and non-lease components and instead account for them as a single lease component. For lease agreements in which the Company is the lessor, the entity applies the guidance of ASC Topic 842, “Leases” in the recognition of lease income. Leases with a term of 12 months or less are not recorded on the balance sheet. Lease expense for minimum lease payments is recognized on a straight-line basis over the lease term. Lease payments for short-term leases are recorded to operating expense on a straight-line basis and variable lease payments are recorded in the period in which the obligation for those payments is incurred. Contingent Liabilities The Company records reserves for contingent liabilities when it is probable that an asset has been impaired or a liability has been incurred at the date of the financial statements, and the amount of the loss can be reasonably estimated. F- 13 Equity-Based Compensation Compensation expense for equity-based compensation awards issued is based on the fair value of the award at the date of grant, and compensation expense is recognized for time-vested awards earned over the service period on a straight-line basis. The Company recognizes equity-based compensation for options containing performance-based vesting conditions over the requisite service period if it is probable that the performance conditions will be satisfied. The Company records forfeitures of equity-based compensation awards as they occur. The Company’s share based compensation program grants awards that have included the following: 1) profits interests in ProKidney LP which, at close of the Business Combination, were converted into paired interests consisting of (i) Class B common stock or Class B restricted stock rights and (ii) Common Units or Restricted Common Units of ProKidney LP (collectively referred to as “Legacy Profits Interests”); 2) restricted stock units issued by SCS (“Legacy SCS Awards”); 3) time-vested stock options issued by ProKidney Corp.; 4) performance-vested stock options issued by ProKidney Corp. and 5) market-vested stock options issued by ProKidney Corp. The grant date fair value of time and performance vested stock option awards is estimated using the Black-Scholes option pricing formula. The grant date fair values of the Legacy Profits Interests and Legacy SCS Awards are based on the market value of the issuer’s shares or member units, as applicable, on the date of grant. Compensation expense related to time-vested stock options, performance-vested stock options, Legacy Profits Interests and Legacy SCS Awards are recognized on a straight-line basis over the applicable service period. Due to the lack of sufficient historical trading information with respect to its own shares, the Company estimates expected volatility based on the historical volatility of its own Class A common stock as well as a portfolio of selected stocks of companies believed to have market and economic characteristics similar to its own. The risk-free rate is based on the U.S. Treasury yield curve in effect at the time of grant. Due to a lack of historical exercise data, the Company estimates the expected life of its outstanding stock options using the simplified method specified under Staff Accounting Bulletin Topic 14.D.2 for awards without market conditions. Defi ned Contribution Plan The Company sponsors a 401(k) plan for its ProKidney-US employees and a defined contribution plan for its ProKidney-KY employees. Full-time employees are eligible to participate in these plans. The Company matches 100% of participating ProKidney-US employees’ contributions up to 4% of salary and contributes 7% of ProKidney-KY employee salaries to the respective plans. The Company’s cost related to these defined contribution plans were $ 1,098,000 , $ 863,000 and $ 503,000 for the years ended December 31, 2025, 2024 and 2023 , respectively . Recent Accounting Pronouncements In December 2023, the FASB issued ASU 2023-09, Improvements to Income Tax Disclosures, (“ASU 2023-09”) which requires entities to disclose disaggregated information about their effective tax rate reconciliation and income taxes paid. The Company adopted ASU 2023-09 for the year ended December 31, 2025 and applied the new disclosure requirements prospectively to the current annual period. Prior period disclosures have not been adjusted to reflect the new disclosure requirements. See Note 4 for further details. In November 2024, the FASB issued ASU 2024-03, Income Statement-Reporting Comprehensive Income-Expense Disaggregation Disclosures, which requires disclosure of additional information about specific expense categories in the notes to the financial statements on an interim and annual basis. The standard is effective for fiscal years beginning after December 15, 2026, and for interim periods within annual reporting periods beginning after December 15, 2027, with early adoption permitted. The Company is currently evaluating the disclosure requirements related to this new standard. 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, which removes the concept of project stages and requires the capitalization of software costs when management has committed to funding the software project and it is probable that the project will be complete. The standard is effective for fiscal years beginning after December 15, 2027, with early adoption permitted. The Company is currently evaluating the impact of adopting this new standard. Note 3: Investments Cash equivalents and marketable securities are measured at fair value and within Level 2 in the fair value hierarchy, because we use quoted market prices to the extent available or alternative pricing sources and models utilizing market observable inputs to determine fair value. The following tables summarize our cash equivalents and marketable securities measured at fair value on a recurring basis (in thousands): F- 14 As of December 31, 2025 Fair Value Hierarchy Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Cash Equivalents Marketable Securities Money market funds Level 2 $ 24,100 $ – $ – $ 24,100 $ 24,100 $ – Time deposits Level 2 4,300 5 – 4,305 – 4,305 Commercial paper Level 2 23,631 12 ( 1 ) 23,642 9,191 14,451 Asset backed securities Level 2 4,663 6 – 4,669 – 4,669 Government bonds Level 2 38,173 18 – 38,191 7,235 30,956 Corporate debt securities Level 2 107,008 92 ( 1 ) 107,099 – 107,099 Total $ 201,875 $ 133 $ ( 2 ) $ 202,006 $ 40,526 $ 161,480 As of December 31, 2024 Fair Value Hierarchy Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Cash Equivalents Marketable Securities Money market funds Level 2 $ 5,979 $ – $ – $ 5,979 $ 5,979 $ – Time deposits Level 2 6,725 12 – 6,737 – 6,737 Commercial paper Level 2 34,850 46 ( 2 ) 34,894 3,147 31,747 Asset backed securities Level 2 6,905 30 – 6,935 – 6,935 Government bonds Level 2 80,509 62 – 80,571 46,848 33,723 Corporate debt securities Level 2 179,882 190 ( 42 ) 180,030 – 180,030 Total $ 314,850 $ 340 $ ( 44 ) $ 315,146 $ 55,974 $ 259,172 The following table shows the fair value of the Company’s cash equivalents and marketable securities, by contractual maturity, as of December 31, 2025 (in thousands): December 31, 2025 Due in 1 year or less $ 194,514 Due in 1 year through 5 years 7,492 Total $ 202,006 The following table shows fair values and gross unrealized losses recorded to accumulated other comprehensive loss, aggregated by category and the length of time that individual securities have been in a continuous loss position (in thousands): As of December 31, 2025 Less than 12 months 12 Months or Greater Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Commercial paper $ 965 $ ( 1 ) $ – $ – $ 965 $ ( 1 ) Asset backed securities 1,082 – – – 1,082 – Corporate debt securities 3,565 ( 1 ) – – 3,565 ( 1 ) Total $ 5,612 $ ( 2 ) $ – $ – $ 5,612 $ ( 2 ) As of December 31, 2024 Less than 12 months 12 Months or Greater Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Commercial paper $ 3,869 $ ( 2 ) $ – $ – $ 3,869 $ ( 2 ) Corporate debt securities 32,443 ( 42 ) – – 32,443 ( 42 ) Total $ 36,312 $ ( 44 ) $ – $ – $ 36,312 $ ( 44 ) The Company holds debt securities of companies with high credit quality and has determined that there was no material change in the credit risk of its debt securities during the year ended December 31, 2025 . As such, the Company has no t recognized an allowance for credit losses related to marketable debt securities during the years ended December 31, 2025, 2024 and 2023. As of December 31, 2025 , there were seven investment positions that were in an unrealized loss position. F- 15 Note 4: Income Taxes Prior to the Domestication and other Restructuring transactions, ProKidney was considered an exempted Cayman Islands company and was not subject to income taxes or income tax filing requirements in the Cayman Islands or the United States. The Company’s subsidiary, PKLP, was organized as a limited partnership under the laws and regulations of Ireland and was classified as a partnership for U.S. income tax purposes. Further, the Company’s subsidiary, ProKidney-KY, had been granted, by the Government in Council of the Cayman Islands, tax concessions under an undertaking certificate exempting it from any tax levied on profits, income, gains or appreciations in relation to its operations or in the nature of estate duty or inheritance tax for a period of twenty years from January 20, 2016. ProKidney-KY elected to be treated as disregarded as separate from its owner, PKLP, for U.S. tax purposes, and as a result, it did not record an income tax provision. The Domestication and other Restructuring transactions resulted in the Company becoming subject to corporate level income taxes in the U.S. Further, the Post-Domestication Reorganization, which was effective on September 1, 2025, resulted in certain of the Company’s subsidiaries becoming part of a consolidated group and ProKidney-US becoming disregarded as separate from its owner, “PK Holdings” for U.S. federal income tax purposes. For periods prior to the Domestication and Post-Domestication Reorganization, the difference between the Company’s effective tax rates and the Cayman statutory rate of 0 % was primarily attributable to the recording of a tax provision for U.S. federal and state taxes for the Company’s subsidiaries, ProKidney-US and ProKidney Acquisition Company, which were treated as a C corporation for U.S. federal income tax purposes. For periods subsequent to the Domestication and Post-Domestication Reorganization, the difference between the Company’s effective tax rates and the U.S. statutory rate of 21 % was primarily attributable to the valuation allowance against the Company’s expected net operating losses. The provision for income tax expense consisted of the following for the years ended December 31, 2025, 2024 and 2023 (in thousands): December 31, 2025 December 31, 2024 December 31, 2023 Current: Federal $ 378 $ ( 610 ) $ 5,918 State 36 12 78 Foreign – – – Total current income tax expense (benefit) 414 ( 598 ) 5,996 Deferred: Federal – – – State – – – Foreign – – – Total deferred income tax expense (benefit) – – – Income tax expense (benefit) $ 414 $ ( 598 ) $ 5,996 The table below provides the updated requirements of ASU 2023-09 for 2025. The effective income tax rate for the year ended December 31, 2025 differs from the statutory U.S. income tax rate as follows (in thousands, except percentages): December 31, 2025 U.S. federal statutory rate $ ( 31,752 ) 21.0 % State and local taxes 28 ( 0.0 ) Effects of cross-border transactions - change in tax status 9,065 ( 6.0 ) Tax credits - research and development credits ( 3,723 ) 2.5 Changes in valuation allowance 16,753 ( 11.2 ) Nontaxable or nondeductible items Noncontrolling interest 17,351 ( 11.5 ) Other 1,801 ( 1.2 ) Other Partnership outside basis difference ( 9,473 ) 6.3 Other 364 ( 0.2 ) Effective income tax rate $ 414 ( 0.3 )% F- 16 As previously disclosed for the years ended December 31, 2024 and 2023, prior to the adoption of ASU 2023-09, the difference between the statutory rate in the Cayman Islands of 0% and the effective income tax rate was as follows: December 31, 2024 December 31, 2023 Current: Income taxes at statutory rate 0.0 % 0.0 % Income of taxed entity 0.5 3.7 Federal Credits 1.0 1.3 Share-based compensation ( 1.5 ) ( 2.2 ) Provision to return adjustment ( 3.2 ) – Change in valuation allowance 3.7 ( 7.3 ) Other ( 0.1 ) ( 0.1 ) Effective income tax rate 0.4 % ( 4.6 )% A summary of income taxes paid, net of (refunds) received, for the year ended December 31, 2025 is as follows (in thousands): December 31, 2025 U.S. federal income taxes paid, net of (refunds) received $ 2,400 U.S. state and local income taxes paid, net of (refunds) received 42 Foreign income taxes paid, net of (refunds) received – Total income taxes paid, net of (refunds) received $ 2,442 The amount of cash income taxes paid by the Company during the years December 31, 2024 and 2023 was $ 73,000 and $ 2,857,000 , respectively. Components of the Company’s deferred tax assets and liabilities included in the consolidated balance sheet consisted of the following (in thousands): December 31, 2025 December 31, 2024 Deferred tax assets: Partnership outside basis difference $ 5,927 $ – Accrued compensation – 1,816 Federal credit carryforwards 679 – Leases – 98 Share-based compensation 57 5,702 Net operating loss carryforwards 8,941 143 Capital loss carryforward 1,732 – Start-up costs 191 232 Deferred tax assets before valuation allowance 17,527 7,991 Valuation allowance ( 17,527 ) ( 6,928 ) Total deferred tax assets $ – $ 1,063 Deferred tax liabilities: Fixed assets $ – $ 1,051 Prepaid expenses – 12 Total deferred income tax liabilities – 1,063 Net deferred tax asset $ – $ – As discussed in Note 6, the Company is party to a tax receivable agreement with a related party which provides for the payment by the Company to holders of PK Holdings prior to the Closing (“Closing ProKidney Unitholders”) of 85% of the amount of cash savings, if any, in U.S. federal, state and local income tax or franchise tax that the Company actually realizes (or, in some circumstances, the Company is deemed to realize) as a result of certain transactions. As no transactions have occurred which would trigger a liability under this agreement, the Company has not recognized any liability related to this agreement as of December 31, 2025. F- 17 In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion of the deferred tax assets will be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considers the scheduled reversal of deferred tax liabilities, available taxes in the carryback periods, projected future taxable income and tax planning strategies in making this assessment. Accordingly, management has concluded that it is not more likely than not that it will recognize the deferred tax assets, and the Company has provided a valuation allowance of $ 17,527,000 and $ 6,928,000 , respectively for December 31, 2025 and 2024, to offset the net deferred tax assets. As of December 31, 2025 and 2024 , the ProKidney Acquisition Company has net operating loss carryforwards of $ 1,120,000 and $ 626,000 , respectively, for federal and state purposes. For federal purposes, these net operating loss carryforwards have an indefinite life and for state income tax purposes, the losses begin to expire in 2038. At December 31, 2025, ProKidney Acquisition Company has a net capital loss carryforward of $ 7,606,000 . For federal purposes, the capital loss has a carryforward of five years and a carryback period of three years at December 31, 2025. ProKidney Corp. has net operating loss carryforwards of $ 41,496,000 for federal purposes. A reconciliation of the beginning and ending amount of total unrecognized tax benefits for the years ended December 31, 2025 and 2024 consisted of the following (in thousands): December 31, 2025 December 31, 2024 Unrecognized tax benefits (gross): Benefits at the beginning of the year $ 748 $ 568 Increase related to prior year tax positions 112 – Decrease related to prior year tax positions – ( 65 ) Increase related to current year tax positions 215 245 Benefits at the end of the year $ 1,075 $ 748 There were no net unrecognized tax benefits as of December 31, 2025 which, if recognized, would affect our effective tax rate. Tax years 2021 through 2025 remain subject to examination by federal and state authorities. Note 5: Leases The Company has operating leases for real estate (primarily office space) and certain equipment with various expiration dates. The Company also has finance leases for certain equipment which are not considered material. During the year ended December 31, 2024, the Company purchased two multi-tenant buildings in Winston-Salem, North Carolina, which it had previously occupied under the terms of a real estate lease. In connection with this purchase, the Company assumed the existing lease agreements held with certain third parties which leased space in these buildings. Lessee Leases For the years ended December 31, 2025, 2024 and 2023, the Company’s operating lease cost was $ 1,255,000 , $ 1,976,000 , and $ 1,062,000 , respectively. During the year ended December 31, 2025 , cash paid for operating leases was $ 1,039,000 . F- 18 The following table summarizes the classification of operating and finance lease assets and obligations in the Company's Consolidated Balance Sheets as of December 31, 2025 and December 31, 2024 (in thousands): December 31, 2025 December 31, 2024 Operating leases: Right of use assets $ 3,590 $ 2,869 Operating lease liabilities, current $ 1,054 $ 740 Operating lease liabilities, noncurrent 2,905 2,393 Total operating lease liabilities $ 3,959 $ 3,133 Finance leases: Right of use assets $ 74 $ 97 Finance lease liabilities, current $ 17 $ 25 Finance lease liabilities, noncurrent 60 78 Total finance lease liabilities $ 77 $ 103 Maturities of lease liabilities for the Company’s operating and finance leases are as follows as of December 31, 2025 (in thousands): Operating Leases Finance Leases Total 2026 $ 1,429 $ 22 $ 1,451 2027 1,292 22 1,314 2028 1,075 22 1,097 2029 457 22 479 2030 420 — 420 Thereafter 251 — 251 Total lease payments 4,924 88 5,012 Less: imputed interest ( 965 ) ( 11 ) ( 976 ) Present value of lease liabilities $ 3,959 $ 77 $ 4,036 The weighted average remaining lease term for operating leases is 3.9 years, and 4.0 years for the finance lease. The weighted average discount rate is 11.0 % and 5.6 % for operating and finance leases, respectively. Lessor Leases The Company leases a portion of its facilities in Winston-Salem, North Carolina under agreements that are classified as operating leases. In addition to the rental payments, tenants pay a fixed rate for their pro rata share of real estate taxes, insurance and other facility operating expenses. These amounts are recognized as revenues on a straight-line basis over the term of the related leases. For leasing revenues where collectability is not considered probable, lease income is recognized on a cash basis and all previously recognized tenant accounts receivables, including straight-line rent, are fully reserved in the period in which the lease income is determined not to be probable of collection. These lease agreements terminate between 2026 and 2029. The leasing revenue for the years ended December 31, 2025 and 2024 was $ 893,000 and $ 76,000 , respectively. There was no such revenue for the year ended December 31, 2023. Future minimum lease payments under non-cancelable operating leases as of December 31, 2025 excluding the effect of straight-line rent and variable rental payments are as follows (in thousands): Total 2026 $ 522 2027 495 2028 289 2029 13 2030 — Thereafter — Total $ 1,319 F- 19 Note 6: Related Party Transactions Exchange Agreement On the Closing Date, the Company entered into an exchange agreement with PKLP and certain Closing ProKidney Unitholders (the “Exchange Agreement”) pursuant to which, subject to the procedures and restrictions therein, from and after the waiver or expiration of any contractual lock-up period (including pursuant to the Lock-Up Agreement (as defined below)) the holders of Post-Combination ProKidney Common Units as defined in the Exchange Agreement (or certain permitted transferees thereof) would have the right from time to time at and after 180 days following the Closing to exchange their Post-Combination ProKidney Common Units and an equal number of shares of Class B common stock of the Company on a one-for-one basis for shares of Class A common stock of the Company (the “Exchange”); provided, that, subject to certain exceptions, the Company, at its sole election, subject to certain restrictions, may, other than in the case of certain secondary offerings, instead settle all or a portion of the Exchange in cash based on a volume weighted average price (“VWAP”) of a share of Class A common stock. The Exchange Agreement provides that, as a general matter, a holder of Post-Combination ProKidney Common Units will not have the right to exchange Post-Combination ProKidney Common Units if the Company determines that such exchange would be prohibited by law or regulation or would violate other agreements with the Company and its subsidiaries to which the holder of Post-Combination ProKidney Common Units may be subject, including the Second Amended and Restated ProKidney Limited Partnership Agreement and the Exchange Agreement. In connection with the Domestication and the other Restructuring transactions, the Company amended and restated the Exchange Agreement on substantially similar terms in order to reflect updates to the Company’s corporate structure resulting from the Restructuring. Lock-Up Agreement On the Closing Date, the Company, SCS Sponsor III LLC and certain Closing ProKidney Unitholders entered into a lock-up agreement (the “Lock-Up Agreement”). The Lock-Up Agreement contains certain restrictions on transfer with respect to the SCS Sponsor III LLC and the Closing ProKidney Unitholders party thereto. Such restrictions began at the Closing and would end on the earlier of (i) the date that is 180 days after the Closing and (ii)(a) for 33% of the Lock-Up Shares (other than the Earnout Shares and the Private Placement Shares), the date on which the last reported sale price of the Company’s Class A common stock equals or exceeds $12.50 per share for any 20 trading days within any 30-trading day period commencing at least 30 days after the Closing and (b) for an additional 50% of the Lock-Up Shares (other than the Earnout Shares and the Private Placement Shares (as each such term is defined in the Lock-Up Agreement)), the date on which the last reported sale price of the Company’s Class A common stock equals or exceeds $15.00 per share for any 20 trading days within any 30-trading day period commencing at least 30 days after the Closing. Notwithstanding the above, (i) the lock-up period for any Earnout Shares will expire not earlier than 180 days after such Earnout Shares are issued ; (ii) 50% of the Lock-Up Shares held by certain Closing ProKidney Unitholders and their affiliates will remain locked up until the earlier of four years following the Closing and the date that PKLP receives notice of any regulatory market authorization, including full or conditional authorization, to market its lead product candidate, Renal Autologous Cell Therapy (but, in any event, not earlier than 180 days following the Closing or (in the case of Earnout Shares) the date of issuance); and (iii) the lock-up period for the Private Placement Shares expired 30 days after the Closing. The restrictions on transfer set forth in the Lockup Agreement are subject to customary exceptions. In connection with the Domestication and the other Restructuring transactions, the Company amended and restated the Lock-Up Agreement on substantially similar terms in order to reflect updates to the Company’s corporate structure resulting from the Restructuring. During January 2023, the lock-up period for 50 % of the shares held by the Closing ProKidney Unitholders (other than the Earnout Shares) expired. Tax Receivable Agreement On the Closing Date, the Company entered into a tax receivable agreement (the “Tax Receivable Agreement”) with the Closing ProKidney Unitholders. Pursuant to the Tax Receivable Agreement, among other things, the Company will be required to pay the Closing ProKidney Unitholders party thereto 85 % of certain tax savings recognized by the Company, if any, as a result of the increases in tax basis attributable to exchanges by the Closing ProKidney Unitholders of Post-Combination ProKidney Common Units for shares of Class A common stock of the Company or, subject to certain restrictions, cash, pursuant to the Exchange Agreement and certain other tax attributes of PKLP and tax benefits related to entering into the Tax Receivable Agreement. In connection with the Domestication and the other Restructuring transactions, the Company amended and restated the Tax Receivable Agreement on substantially similar terms in order to reflect updates to the Company’s corporate structure resulting from the Restructuring F- 20 Earnout Rights At the Closing, certain shareholders were issued an aggregate of 17,500,000 Earnout Restricted Common Units and 17,500,000 Earnout Restricted Stock Rights (collectively, the “Earnout Rights”). The Earnout Rights vest in three equal tranches if, during the five-year period after Closing, the VWAP of a Class A ordinary share reaches $ 15.00 per share, $ 20.00 per share and $ 25.00 per share. Likewise, the Earnout Rights will vest upon a change of control with a per share price exceeding those same VWAP thresholds within a five-year period immediately following the Closing. Upon vesting, the Earnout Rights will automatically convert into Post Combination ProKidney Common Units and shares of Class B common stock. Consulting Services Agreement between ProKidney-KY and Nefro Health ProKidney IPCo. is party to a consulting services agreement with Nefro Health (“Nefro”), an Irish partnership controlled and majority-owned by Mr. Pablo Legorreta, a director of the Company and a significant shareholder, pursuant to which Nefro provides consulting services for the research and development of the Company’s product candidates, including the conduct of clinical trials in North America and the European Union, the design and manufacturing of ProKidney’s product candidates as well as pre-commercialization activities, which are primarily performed by Mr. Legorreta. Under the agreement, Nefro receives $ 25,000 per quarter and is reimbursed for any out-of-pocket expenses incurred in connection with activities Nefro conducted under the agreement. ProKidney-KY has paid Nefro an aggregate of $ 100,000 for each of the years ended December 31, 2025, 2024 and 2023. The initial term of the consulting services agreement continued through December 31, 2020 and was renewed pursuant to the provision allowing for automatic renewals for additional periods of one year each unless terminated by either party by providing written notice to the other party at least ninety (90) days prior to the scheduled termination date. Either party may terminate this agreement upon the occurrence of a material breach by the other party in the performance of its obligations under the agreement or in respect of any provision, representation, warranty or covenant if such breach has not been cured within thirty (30) days after receiving written notice from the non-breaching party. Additionally, either of the parties may terminate the consulting services agreement for any reason upon giving thirty (30) days’ advance notice of such termination to the other party. In the event of such termination, ProKidney IPCo. will be obligated to pay Nefro any earned but unpaid consulting fee as of the termination date. Consulting Services Agreement between ProKidney-US and Nefro Health ProKidney-US is party to a consulting services agreement with Nefro, pursuant to which Nefro provides consulting services for the research and development of the Company’s product candidates, including the conduct of clinical trials in North America and the European Union, the design and manufacturing of the Company’s product candidates as well as pre-commercialization activities, which are primarily performed by Mr. Legorreta. Under the agreement, Nefro receives $ 25,000 per quarter and is reimbursed for any out-of-pocket expenses incurred in connection with activities Nefro conducted under the agreement. ProKidney-US has paid Nefro an aggregate of $ 100,000 for each of the years ended December 31, 2025, 2024 and 2023 . The initial term of the consulting services agreement continued through December 31, 2020 and was renewed pursuant to the provision allowing for automatic renewals for additional periods of one year each unless terminated by either party by providing written notice to the other party at least ninety (90) days prior to the scheduled termination date. Either party may terminate this agreement upon the occurrence of a material breach by the other party in the performance of its obligations under the agreement or in respect of any provision, representation, warranty or covenant if such breach has not been cured within thirty (30) days after receiving written notice from the non-breaching party. Additionally, either of the parties may terminate the consulting services agreement for any reason upon giving thirty (30) days’ advance notice of such termination to the other party. In the event of such termination, ProKidney-US will be obligated to pay Nefro any earned but unpaid consulting fee as of the termination date. Note 7: Redeemable Noncontrolling Interest The Company is subject to the Exchange Agreement with respect to the Post-Combination ProKidney Common Units representing the outstanding 52.9 % noncontrolling interest in PK Holdings (see Note 1). The Exchange Agreement requires the surrender of an equal number of Post-Combination ProKidney Common Units and shares of Class B common stock for (i) shares of Class A common stock on a one-for-one basis or (ii) cash (based on the fair market value of the Class A common stock as determined pursuant to the Exchange Agreement), at the Company’s option (as the managing member of PK Holdings), subject to customary conversion rate adjustments for share splits, share dividends and reclassifications. The exchange value is determined based on a five-day VWAP of the Class A common stock as defined in the Exchange Agreement, subject to customary conversion rate adjustments for share splits, share dividends and reclassifications. The redeemable noncontrolling interest is recognized at the higher of (1) its initial fair value plus accumulated earnings/losses associated with the noncontrolling interest or (2) the redemption value as of the balance sheet date. At December 31, 2025 , the redeemable noncontrolling interest was recorded based on its initial fair value plus accumulated losses associated with the noncontrolling interest as this amount was higher than the redemption value as of the balance sheet date which was approximately $ 376,488,000 . F- 21 Changes in the Company’s ownership interest in PK Holdings while the Company retains its controlling interest in PK Holdings are accounted for as equity transactions, and the Company is required to adjust noncontrolling interest and equity for such changes. The following is a summary of net income attributable to the Company and transfers to noncontrolling interest (in thousands): For the Years Ended December 31, 2025 2024 2023 Net loss available to Class A common stockholders $ ( 68,986 ) $ ( 61,186 ) $ ( 35,468 ) (Increase)/Decrease in ProKidney Corp. accumulated deficit for impact of subsidiary equity-based compensation 2,979 4,863 7,005 (Increase)/Decrease in ProKidney Corp. additional paid-in capital for exchange of Common Units in PK Holdings for Class A common stock ( 5,312 ) ( 15,441 ) ( 9,500 ) (Increase)/Decrease in ProKidney Corp. additional paid-in capital for vesting of Restricted Common Units in PK Holdings 448 14,786 ( 4,795 ) Change from net loss available to Class A common stockholders and change in ownership interest in PK Holdings $ ( 70,871 ) $ ( 56,978 ) $ ( 42,758 ) Note 8: Shareholders’ Equity Public Offerings In June 2024, the Company sold 46,886,452 shares of its Class A common stock in an underwritten public offering at a price of $ 2.42 per share. Additionally, in June 2024, the Company sold 11,030,574 shares of its Class A common stock to certain investment entities at price of $ 2.42 per share in a concurrent registered direct offering pursuant to share purchase agreements. The net proceeds to the Company from the offerings were approximately $ 136,618,000 , after deducting the underwriting discounts and commissions and offering expenses payable by the Company. The shares were offered and sold pursuant to the Company’s shelf registration statement on Form S-3. Open Market Sale Agreement In January 2024, the Company entered into an Open Market Sale Agreement SM (“the 2024 Sales Agreement”) with Jefferies LLC (“Jefferies”) as the sales agent, pursuant to which the Company may offer and sell, from time to time, through Jefferies, shares of its Class A common stock having an aggregate offering price of up to $ 100,000,000 by any method deemed to be an “at the market offering” as defined in Rule 415(a)(4) under the Securities Act. The shares are offered and sold pursuant to the Company’s shelf registration statement on Form S-3. During the year ended December 31, 2024, the Company sold 4,170,791 shares of its Class A common stock under the 2024 Sales Agreement for net proceeds of $ 7,707,000 . The Company did not sell any shares under the 2024 Sales Agreement during the year ended December 31, 2025. On July 14, 2025, the Company terminated the 2024 Sales Agreement with Jefferies and entered into an new Open Market Sales Agreement SM (the “2025 Sales Agreement”) with Jefferies, pursuant to which the Company may offer and sell, from time to time, shares (the “Shares”) of its Class A common stock having an aggregate offering price of up to $ 200,000,000 through Jefferies, acting as agent. Pursuant to the 2025 Sales Agreement, sales of the Shares may be made by any method permitted that is deemed to be an “at the market” offering as defined in Rule 415(a)(4) under the Securities Act, in ordinary brokers’ transactions, to or through a market maker, on or through The Nasdaq Capital Market or any other market venue where the securities may be traded, in the over-the-counter market, in privately negotiated transactions or through a combination of any such methods of sale. Under the 2025 Sales Agreement, Jefferies will be entitled to compensation of up to 3.0 % of the gross offering proceeds of all Shares sold through it pursuant to the 2025 Sales Agreement. The Company will also reimburse Jefferies for certain specified expenses in connection with entering into the 2025 Sales Agreement. The Company has no obligation to sell any of the Shares under the 2025 Sales Agreement and may at any time and from time to time suspend the offering of the Shares under the 2025 Sales Agreement. During the year ended December 31, 2025, the Company sold 7,452,342 shares of its Class A common stock under the 2025 Sales Agreement for net proceeds of $ 24,247,000 . F- 22 Rights of Class A Common Stock Each holder of Class A common stock is entitled to one vote for each share of Class A common stock held of record by such holder on all matters on which shareholders generally are entitled to vote. Subject to preferences that may be applicable to any outstanding preference shares, the holders of Class A common stock are entitled to receive ratably such dividends, if any, as may be declared from time to time by the Board out of funds legally available therefor. We do not currently pay nor do we expect to pay any dividends to stockholders. In the event of any voluntary or involuntary liquidation, dissolution or winding up of our affairs, the holders of the Company’s Class A common stock are entitled to share ratably in all assets remaining after payment of our debts and other liabilities, subject to prior distribution rights of preference shares or any class or series of shares having a preference over the Company’s Class A common stock, then outstanding, if any. Rights of Class B Common Stock Each holder of the Company’s Class B common stock is entitled to one vote for each share of Class B common stock held of record by such holder on all matters on which shareholders generally are entitled to vote. The holders of the Company’s Class B common stock will not participate in any dividends declared by our board of directors. In the event of any voluntary or involuntary liquidation, dissolution or winding up of our affairs, the holders of the Company’s Class B common stock are entitled to a ratable amount equal to the capital paid up on such Class B common stock of all assets remaining after payment of our debts and other liabilities, subject to prior distribution rights of preference shares or any class or series of shares having a preference over the Company’s Class B common stock, then outstanding, if any. The Company’s Class B common stock shall not carry any other right to participate in our profits or assets. Earnout Rights At the closing of the Business Combination, certain shareholders were issued an aggregate of 17,500,000 Earnout Rights. The Earnout Rights vest in three equal tranches if, during the five-year period after Closing, the VWAP of a share of Class A common stock reaches $ 15.00 per share, $ 20.00 per share and $ 25.00 per share. Likewise, the Earnout Rights will vest upon a change of control with a per share price exceeding those same VWAP thresholds within a five-year period immediately following the Closing. Upon vesting, the Earnout Rights will automatically convert into Post-Combination ProKidney Common Units and Class B common stock. The issuance of the Earnout Rights was accounted for as an equity transaction. Since the Earnout Rights were issued to Closing ProKidney Unitholders (i.e., the accounting acquirer in the business combination), the accounting for the Earnout Rights arrangement does not fall under Accounting Standards Codification (“ASC”) Topic 805, Business Combinations nor Topic 718, Stock Compensation. The accounting for the Earnout Rights was also evaluated under ASC Topic 480, Distinguishing Liabilities from Equity, to determine if the arrangement should be classified as a liability. Based on that analysis, it was determined that the Earnout Rights did not meet the criteria to be accounted for as a liability. Additionally, the Earnout Rights were evaluated under ASC Topic 815, Derivatives. As part of that analysis, it was determined that the Earnout Rights met the definition of a derivative; however, they meet the scope exception criteria as they were clearly and closely related to the entity’s own stock, and met the criteria for equity treatment. Note 9: Net Loss per Share Basic net loss per share is calculated by dividing net loss attributable to Class A ordinary shareholders by the weighted-average shares of Class A common stock outstanding without the consideration for potential dilutive securities. Diluted net loss per share represents basic net loss per share adjusted to include the effects of all potentially dilutive shares. Diluted net loss per share is the same as basic loss per share for all periods as the inclusion of potentially issuable shares would be antidilutive. F- 23 The following table sets forth the computation of basic and diluted net loss per share for the years ended December 31, 2025, 2024 and 2023 (in thousands, except share and per share amounts): 2025 2024 2023 Numerator Net loss $ ( 151,612 ) $ ( 163,335 ) $ ( 135,447 ) Less: Net loss attributable to noncontrolling interests ( 82,626 ) ( 102,149 ) ( 99,979 ) Net loss available to Class A common stockholders of ProKidney Corp., basic and diluted $ ( 68,986 ) $ ( 61,186 ) $ ( 35,468 ) Denominator Weighted average shares of Class A common stock of ProKidney Corp. outstanding, basic and diluted 133,942,736 97,916,193 61,714,225 Net loss per share attributable to Class A common stock Net loss per share attributable to Class A common stock of ProKidney Corp., basic and diluted $ ( 0.52 ) $ ( 0.62 ) $ ( 0.57 ) Outstanding anti-dilutive securities not included in the diluted net loss per share calculation include the following: 2025 2024 2023 Antidilutive securities ProKidney Corp. Class B common stock 159,262,779 163,693,707 168,297,916 Unvested Restricted Stock Rights 733,252 1,755,686 3,565,753 Earnout Rights 17,500,000 17,500,000 17,500,000 Stock options granted under the 2022 Equity Incentive Plan 28,736,764 21,449,920 14,680,109 Note 10: Equity Based Compensation 2022 Incentive Equity Plan On July 11, 2022, the shareholders of the Company approved the ProKidney Corp. 2022 Incentive Equity Plan (the “2022 Plan”) which provides for the issuance of equity based awards to the Company’s employees, non-employee directors, individual consultants, advisors and other service providers. The 2022 Plan, as amended on July 1, 2025, provides for the issuance of equity awards in the form of incentive stock options, which are intended to satisfy the requirements of Section 422 of the Internal Revenue Code of 1986, as amended, or nonqualified stock options, which are not intended to meet those requirements, stock appreciation rights, restricted stock, restricted stock units, performance awards or other cash or stock-based awards as determined appropriate by the plan administrator. In settlement of its obligations under this plan, the Company will issue new Class A common stock. The Company has issued incentive and non-qualified stock option awards under the 2022 Plan to certain employees and non-employee directors of the Company. Given that the Company has established a full valuation allowance against its deferred tax assets, the Company has recognized no tax benefit related to these awards. Valuation of Stock Option Awards The Company uses the Black-Scholes option pricing model to calculate the fair value of time and performance vested stock options granted. The time-vested awards generally vest ratably over a three or four-year period. The performance-vested awards vest in accordance with their performance conditions. The Company’s option awards expire after a term of ten years from the date of grant. The fair value of stock options granted was estimated using the following assumptions during the years ended December 31, 2025 and 2024: F- 24 Years Ended December 31, 2025 2024 Expected volatility 99.0 % - 132.5 % 82.9 % - 85.5 % Expected life of options, in years 5.0 - 6.1 5.4 - 6.1 Risk-free interest rate 3.6 % - 4.4 % 3.7 % - 4.6 % Expected dividend yield 0.0 % 0.0 % Time Vested Awards The following table summarizes the activity related to the Company’s time-vested stock option awards granted under the 2022 Plan for the year ended December 31, 2025: Number of Shares Weighted Average Exercise Price Time-vested options outstanding at January 1, 2025 19,778,670 $ 5.45 Granted 13,564,334 1.27 Exercised ( 797,326 ) 1.51 Forfeited ( 5,090,164 ) 3.61 Time-vested options outstanding at December 31, 2025 27,455,514 $ 3.84 Time-vested options exercisable at December 31, 2025 11,944,980 $ 5.67 Weighted average remaining contractual life 7.4 years Time-vested options vested and expected to vest at December 31, 2025 27,455,514 $ 3.84 Weighted average remaining contractual life 8.1 years As of December 31, 2025 , the Company had total unrecognized stock-based compensation expense of approximately $ 26,889,000 related to the time-vested grants under the 2022 Plan, which is expected to be recognized on a straight-line basis over a weighted average period of 2.5 years. The weighted average grant date fair value for the time-vested option grants during the years ended December 31, 2025, 2024 and 2023 were $ 1.03 , $ 1.36 , and $ 5.14 , respectively. The aggregate intrinsic value of the in-the-money time-vested awards outstanding and exercisable as of December 31, 2025 was $ 15,792,000 and $ 3,857,000 , respectively. The total intrinsic value of time-vested awards exercised during the years ended December 31, 2025 and 2024 was $ 960,000 and $ 37,000 , respectively. There were no time-vested awards exercised in 2023. Performance-Vested Awards The Company has issued stock options to certain of its employees which vest based on the achievement of both operational performance metrics and service rendered over a specific time period. The following table summarizes the activity related to the Company’s performance-based stock option awards granted under the 2022 Plan for the year ended December 31, 2025: Number of Shares Weighted Average Exercise Price Performance-based options outstanding at January 1, 2025 1,671,250 $ 1.62 Exercised ( 112,500 ) 1.27 Forfeited ( 277,500 ) 1.88 Performance-based options outstanding at December 31, 2025 1,281,250 $ 1.60 Performance-based options exercisable at December 31, 2025 781,250 $ 1.54 Weighted average remaining contractual life 8.0 years Performance-based options vested and expected to vest at December 31, 2025 1,281,250 $ 1.60 Weighted average remaining contractual life 8.0 years As of December 31, 2025 , the Company had no remaining unrecognized stock-based compensation expense related to the performance-based grants under the 2022 Plan. The weighted average grant date fair value for the performance-vested option grants during the years ended December 31, 2024 and 2023 were $ 1.09 and $ 1.23 , respectively. There were no performance-vested options granted during the year ended December 31, 2025. F- 25 Market-Vested Awards During the year ended December 31, 2023, the Company recognized a reversal of approximately $ 2,172,000 of total compensation cost related to market-vested awards that were forfeited prior to their vesting conditions being met. No market-vested awards were granted during the years ended December 31, 2025, 2024 and 2023. Legacy Profits Interests Prior to the Business Combination, the Company had issued Profits Interests to employees, directors and other service providers of the Company. These Profits Interests awards would vest at a rate of 25% on the latter of the first anniversary of employment and the first anniversary of the Acquisition Date with the remaining 75% to vest in increments of 25% on each anniversary following the first anniversary date, ratably over a three or four-year period from the date of grant, in annual installments of 33.3% over the three-year period from the date of grant, in increments of 6.25% each calendar quarter following the first anniversary date, or were fully vested upon issuance. Upon consummation of the Business Combination, the vested and unvested Profits Interests were recapitalized into Post-Combination ProKidney Common Units or Restricted Common Units of the Company, respectively. Upon recapitalization, the Restricted Common Units maintained the vesting schedules associated with the original Profits Interest awards. The following table summarizes the activity related to the Company’s Profits Interest awards for the year ended December 31, 2025: Number of Shares Weighted Average Grant Date Fair Value Unvested awards outstanding at January 1, 2025 1,755,686 $ 7.37 Vested ( 959,764 ) 7.37 Forfeited ( 62,670 ) 7.37 Unvested awards outstanding at December 31, 2025 733,252 $ 7.38 As of December 31, 2025 , the unrecognized compensation expense related to these awards was $ 276,000 . The current weighted average remaining period over which the unrecognized compensation expense is expected to be recognized is 0.1 years. There were no Profits Interests granted during the years ended December 31, 2025, 2024 or 2023. The aggregate intrinsic value of the unvested profits interests outstanding at December 31, 2025 was $ 1,642,000 . The aggregate fair value of profits interests vested during the years ended December 31, 2025, 2024 and 2023 was $ 1,582,000 , $ 2,197,000 and $ 20,749,000 , respectively. Modification to Equity Based Compensation Awards During the year ended December 31, 2023, the Company modified the vesting terms of outstanding time-based stock options issued to certain personnel upon their separation. This amendment constituted a modification of the awards under the provisions of ASC Topic 718 and resulted in the recognition of an additional $ 3,011,000 of compensation expense during the year ended December 31, 2023. Compensation Expense Compensation expense related to share-based awards is included in research and development and general and administrative expense as follows (in thousands): Years Ended December 31, 2025 2024 2023 Research and development $ 11,858 $ 12,504 $ 15,864 General and administrative 13,478 16,868 14,982 Total equity-based compensation expense $ 25,336 $ 29,372 $ 30,846 F- 26 Years Ended December 31, 2025 2024 2023 Time-vested stock options $ 19,845 $ 20,785 $ 23,560 Performance-based stock options 5 1,136 – Market-vested stock options – – ( 2,172 ) Legacy profits interests 5,486 7,451 9,458 Total equity-based compensation expense $ 25,336 $ 29,372 $ 30,846 Note 11: Segment Information The Company regularly reviews its operating segments and the approach used by management to evaluate performance and allocate resources. The Company manages its business as a single operating segment. The Company’s Chief Executive Officer is considered to be the Company’s chief operating decision maker under the requirements of Topic 280 of the ASC “Segments”. The primary measure of profit/loss reviewed by the chief operating decision maker (“CODM”) is net loss before noncontrolling interest. The Company does not have any product candidates approved for sale and has not generated any revenue from product sales. During 2024, the Company began recognizing lease revenue related to existing lease agreements held with certain third parties which leased space in the buildings which also house the Company’s manufacturing operations. The Company manages its assets on a total company basis, not by operating segment. Therefore, its chief operating decision maker does not regularly review any asset information other than total Company assets. See the Company’s Consolidated Balance Sheets for total assets. The majority of the Company’s long-lived assets are located in the United States. The following table provides selected income statement information for the Company’s single reportable segment (in thousands): For the Years Ended December 31, 2025 2024 2023 Net loss before noncontrolling interest $ ( 151,612 ) $ ( 163,335 ) $ ( 135,447 ) Rental income 893 76 – Depreciation and amortization 5,722 4,337 2,956 Equity-based compensation 25,336 29,372 30,846 Income tax (benefit) expense 414 ( 598 ) 5,996 Interest expense 4 9 12 Interest income 13,813 19,752 22,083 The following table provides significant expense categories that are regularly reported to the chief operating decision maker (in thousands): For the Years Ended December 31, 2025 2024 2023 Revenue $ 893 $ 76 $ – Clinical trial expense 35,427 50,235 42,513 Cash compensation 56,365 48,025 31,374 Cash operating expenses 42,931 45,459 49,431 Other segment items (1) 17,782 19,692 12,129 Net loss before noncontrolling interest $ ( 151,612 ) $ ( 163,335 ) $ ( 135,447 ) (1) Other segment items primarily include interest income, equity-based compensation, depreciation, and impairment charges. 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