X0306 4 2021-04-02 0001098146 PATRIOT NATIONAL BANCORP INC PNBK 0001498322 Constantino Edward N. C/O PATRIOT NATIONAL BANCORP, INC. 900 BEDFORD STREET STAMFORD CT 06901 1 Common Stock 2021-04-02 4 A 0 1369 0 A 14055 D Common Stock 1000 I SEP IRA On April 2, 2021, the Reporting Person was granted under the Issuer's 2020 Stock Plan 1,369 shares of common stock, which will vest annually in equal installments over four years (342 shares, 342 shares, 342 shares and 343 shares respectively as of December 31, 2021, 2022, 2023 and 2024). /s/ Edward N. Constantino 2021-04-08