X0306 4/A 2023-03-15 2023-03-16 0 0001781730 Third Coast Bancshares, Inc. TCBX 0001183220 MCWHORTER RICHARD J 20202 HIGHWAY 59 NORTH SUITE 190 HUMBLE TX 77338 0 1 0 0 Chief Financial Officer Common Stock 2713 I By ESOP On March 16, 2023, the reporting person filed a Form 4 which inadvertently reported that he indirectly owned by ESOP 2,282 shares of the issuer's common stock. In fact, as reported in this amendment, the reporting person indirectly owned by ESOP 2,713 shares of the issuer's common stock. /s/ R. John McWhorter 2023-03-17