X0609 4 2026-04-30 0001098146 PATRIOT NATIONAL BANCORP INC PNBK 0001758345 Simmons William Paul false C/O PATRIOT NATIONAL BANCORP, INC. 900 BEDFORD STREET STAMFORD CT 06901 1 EVP & Chief Credit Officer 0 Common Stock 2026-04-30 4 M 0 333333 0 A 333333 D Common Stock 2026-04-30 4 F 0 121776 1.23 D 211557 D Restricted Stock Units 0 2026-04-30 4 M 0 333333 0 A 2026-04-30 2026-04-30 Common Stock 333333 666667 D On August 13, 2025, pursuant to an award agreement effective as of April 30, 2025, the Reporting Person was granted Restricted Stock Units ("RSUs") equal to 1,000,000 shares of Common Stock, which will vest in three equal installments on each of the first three anniversaries of the award date. On April 30, 2026, the first installment of 333,333 RSUs vested and settled and the Issuer delivered shares of Common Stock in settlement thereof. No consideration was paid by the Reporting Person in connection with the settlement. Represents 121,776 shares of Common Stock withheld by the Issuer upon settlement of the RSUs to satisfy the Reporting Person's applicable tax withholding obligations. The shares were withheld at a price of $1.23 per share, representing the closing price of the Issuer's Common Stock on April 30, 2026. The withheld shares were not delivered to the Reporting Person. /s/ William Paul Simmons 2026-05-04