Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the SecuritiesExchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), Indicate by check mark whether the registrant has submitted electronically, every Interactive Data File required to be submittedpursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smallerreporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period forcomplying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. Indicate by check mark whether the registrant has filed all documents and reports to be filed by Section 12, 13 or 15(d) of theSecurities Exchange Act of 1934 subsequent to the distribution of securities under a plan confirmed by a court. YesNo APPLICABLE ONLY TO CORPORATE ISSUERS: Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date. As of May15, 2026, there were 117,669,652 shares of the registrant’s common stock outstanding. TABLEOFCONTENTS Table of Contents Table of Contents PATRIOT NATIONAL BANCORP, INC. AND SUBSIDIARIESNotes to consolidated financial statements (Unaudited) Note 1.Basis of Financial Statement Presentation The accompanying unaudited interim condensed Consolidated Financial Statements of Patriot National Bancorp, Inc. (the “HoldingCompany” or “PNBK”) and its wholly-owned subsidiaries, Patriot Bank, N.A. (the “Bank”), Patriot National Statutory Trust I andPinPat Acquisition Corporation (collectively, the “Company” or “Patriot”), have been prepared pursuant to the rules and regulations ofthe Securities and Exchange Commission (“SEC”). Accordingly, certain information and footnote disclosures normally included infinancial statements prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. The preparation of consolidated financial statements in accordance with US GAAP requires management to make estimates andassumptions that affect the reported amounts of assets, liabilities, revenues and expenses, and to disclose contingent assets andliabilities. Actual results could differ from those estimates. Management has identified accounting for the allowance for credit losses,the analysis and valuation of its investment securities, the valuation of deferred tax assets, the impairment of goodwill, the valuation ofderivatives, and the valuation of servicing assets as certain of Patriot’s more significant accounting policies and estimates, in that they The information furnished reflects, in the opinion of management, all normal recurring adjustments necessary for a fair presentation ofthe results for the interim periods presented. The results of operations for the three months ended March31, 2026 are not necessarily Reclassification Certain prior period amounts have been reclassified to conform to current year financial statement presentation. These reclassificationsonly change the reporting categories and do not affect the consolidated results of operations or consolidate financial position of theCompany. Note 2.Summary of Significant Accounting Policies and Transactions Please refer to the summary of Significant Accounting Policies included in the Company’s 2025 Annual Report on Form 10-K for a listof all policies in effect as of December31, 2025. Table of Contents PATRIOT NATIONAL BANCORP, INC. AND SUBSIDIARIESNotes to Consolidated Financial Statements (Unaudited) Recently issued Accounting Pronouncements not yet Adopted The Company continues to monitor the potential impact of recently issued accounting standards, including ASU 2023-06, ASU 2024-01, and ASU 2024-03, as clarified by ASU 2025-01. The Company does not currently expect adoption of these standards to have a Recently adopted Accounting Pronouncements ASU 2025-08 In November 2025, the FASB issued ASU 2025-08, Financial Instruments Credit Losses Topic 326 Purchased Loans. The updateintroduces a new category of acquired loans and requires an allowance for expected credit losses to be recorded at acquisition as anadjustment to the amortized cost basis rather than through provision expense. The amendments are intended to improve comparabilityin the accounting for acquired loans. The amendments are effective for fiscal years beginning after December 15, 2026, includinginterim periods within those fiscal years, and are to be applied prospectively. Early adoption is permitt