X0609 4 2026-08-26 0001098146 PATRIOT NATIONAL BANCORP INC PNBK 0001504590 Sugarman Steven false C/O PATRIOT NATIONAL BANCORP, INC. 900 BEDFORD STREET STAMFORD CT 06901 1 1 President and CEO 0 Voting Common Stock 2338109 D Voting Common Stock 9019978 I By Steven and Ainslie Sugarman Living Trust Restricted Stock Units 0 2026-08-26 4 A 0 28857 0 A 2027-08-26 2027-08-26 Voting Common Stock 28857 1280915 D The Trust is a revocable living trust for the benefit of the Reporting Person and his spouse. The Reporting Person and his spouse are the trustees of the Trust. On August 26, 2026, pursuant to the Reporting Person's employment agreement with the Issuer, effective as of March 20, 2025 (the "Employment Agreement"), the Reporting Person was granted 28,857 Restricted Stock Units ("RSUs") as a quarterly equity award for the second quarter of 2026. Such RSUs will vest in twelve (12) equal monthly installments commencing on August 26, 2026 and ending on August 26, 2027. Pursuant to the terms of the Employment Agreement, the RSUs are subject to a one-year restricted period expiring on August 26, 2027 and will be settled on the date of expiration of the restricted period. /s/ Steven Sugarman 2026-08-27