Third Coast Bancshares Bolsters Regional Footprint with Strategic Acquisition of Great Plains National Bank

By Gabrielle Saulsbery | Banking Dive Published: October 7, 2026 In a move that signals a continued consolidation trend within the regional banking sector, Houston-based Third Coast Bancshares announced today its definitive agreement to acquire Oklahoma-based Great Plains National Bank. This strategic merger marks a significant milestone for Third Coast, effectively expanding its geographical reach…

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