X0306 4/A 2023-03-15 2023-03-16 0 0001781730 Third Coast Bancshares, Inc. TCBX 0001891853 Caraway Bart 20202 HIGHWAY 59 NORTH SUITE 190 HUMBLE TX 77338 1 1 0 0 See Remarks Common Stock 3131 I By ESOP On March 16, 2023, the reporting person filed a Form 4 which inadvertently reported that he indirectly owned by ESOP 2,616 shares of the issuer's common stock. In fact, as reported in this amendment, the reporting person indirectly owned by ESOP 3,131 shares of the issuer's common stock. Chairman, President and Chief Executive Officer /s/ R. John McWhorter, attorney-in-fact 2023-03-17