0001781730 2026-06-18 2026-06-18 false 0001781730 8-K 2026-06-18 THIRD COAST BANCSHARES, INC. TX 001-41028 46-2135597 20202 Highway 59 North Suite 190 Humble TX 77338 281 446-7000 Not Applicable false false false false Common stock, par value $1.00 per share TCBX NYSE true false