DALLAS, TX — October 23, 2026 — Third Coast Bancshares, Inc. (NYSE: TCBX): Stonegate Capital Partners Updates Coverage on Third Coast Bancshares, Inc. (NYSE: TCBX). Third Coast Bancshares reported 3Q26 net income of $19.0M, or $0.93 per diluted share, compared with $22.0M and $1.08 in 2Q26. Excluding acquisition-related expenses, adjusted EPS improved sequentially to $1.06 from $0.98, while underlying loan production and treasury management-driven deposit growth remained encouraging. NIM compressed to 3.70% from 3.83%, reflecting accelerated loan-premium amortization and the impact of a recent securitization, with management targeting a recovery toward 3.80% in 4Q26. The announced $239.6M acquisition of Great Plains provides a lower-cost deposit franchise, additional commercial lending opportunities, and entry into Oklahoma. We believe the combination strengthens Third Coast’s longer-term earnings potential, although near-term performance will depend on margin recovery, continued organic growth, and successful integration.