Third Coast Bancshares, Inc. Announces Sale of Third Coast Commercial Capital, Inc. Assets (Form 8-K)

Third Coast Bancshares, Inc. Announces

Sale of Third Coast Commercial Capital, Inc. Assets

HOUSTON, July 13, 2026 - Third Coast Bancshares, Inc. (NYSE and NYSE Texas: TCBX), ("Third Coast" or the "Company"), the holding company of Third Coast Bank (the "Bank"), today announced that it closed the sale of substantially all of the assets of Third Coast Commercial Capital, Inc. ("TCCC"), a wholly owned subsidiary of the Bank, to Gulf Coast Bank & Trust Company ("Gulf Coast"), effective as of June 25, 2026.

"This transaction represents an important step in the continued evolution of our balance sheet strategy," said Bart Caraway, Founder, Chairman, President and CEO of Third Coast. "The sale of our TCCC assets allows us to monetize the existing portfolio while maintaining a meaningful ongoing relationship with a strong, experienced partner. We believe this structure provides immediate capital benefits while preserving our ability to continue supporting clients who value access to factoring solutions."

The transaction provides for total consideration of approximately $27.5 million at closing, and a gain of $3.5 million, along with a structured ongoing revenue share. Following the transaction, Third Coast will continue to offer factoring solutions through a strategic partnership with Gulf Coast, a well-established, large bank-owned accounts receivable platform.

Additionally, Third Coast will continue to focus on its core commercial banking, asset-based lending and specialty lending platforms, where the Company sees opportunities for continued growth and differentiation.

About Third Coast Bancshares, Inc.

Third Coast Bancshares, Inc. is a commercially focused, Texas-based bank holding company operating primarily in the Austin, Dallas-Fort Worth, Greater Houston, and San Antonio markets through its wholly owned subsidiary, Third Coast Bank. Founded in 2008 in Humble, Texas, Third Coast Bank conducts banking operations through 21 branches encompassing the four largest metropolitan areas in Texas. Please visit https://www.thirdcoast.bank for more information.

About Gulf Coast Bank & Trust Company

With over $3.8 billion in assets, Louisiana-based Gulf Coast Bank & Trust Company serves its business and personal banking clients through its network of bank branches, loan production, trust/investment and business credit offices. Gulf Coast Bank & Trust Company has 43 locations across the United States, including 24

full-service banking centers spanning from Baton Rouge, LA to Panama City, FL. For more information about Gulf Coast Bank & Trust Company, please call 1.800.223.2060 or visit GulfBank.com.