Exhibit 99.1 News Release Contact: Ken Dennard / Natalie Hairston Dennard Lascar Investor Relations (713) 529-6600 TCBX@dennardlascar.com FOR IMMEDIATE RELEASE Third Coast Bancshares, Inc. Reports 2025 Third Quarter Financial Results Record EPS of $1.22 and Diluted EPS of$1.03 in Latest Quarterly Results HOUSTON – October 22, 2025 – Third Coast Bancshares, Inc. (NYSE & NYSE Texas: TCBX) (the "Company," "Third Coast," "we," "us," or "our"), the bank holding company for Third Coast Bank (the "Bank"), today r ...