Third Coast Bank is a Texas banking association wholly owned by Third Coast Bancshares, Inc. Founded in Humble in 2008, it operates 20 branches, according to the October 2026 company overview.
This is the operating bank. The pending Great Plains National Bank merger would make it the surviving bank.
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Ownership & partners
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Latest news
Published Oct 7, 2026Source / event date: Agreement signed October 6, 2026; joint announcement October 7, 2026 at 6:30 a.m. Eastern Time; Form 8-K and exhibits dated October 7, 2026.
Third Coast Bancshares, Inc. announced an all-stock agreement on October 7 to acquire Great Plains Bancshares, Inc. The proposed Oklahoma expansion would create a company with roughly $9 billion in assets. [1]
Bank & fintech · Bank merger agreement
Deep dives
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Policy & official records
Curated library records that name Third Coast Bank or connect through its linked research. The official source provides full scope and status.
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