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Third Coast Bancshares, Inc. and Great Plains Bancshares, Inc. Announce Definitive Merger Agreement

PR Newswire•07/10/2026•06:30 ET
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Key Highlights

  • ➤Third Coast to acquire Great Plains in all-stock transaction valued at approximately $239.6 million
  • ➤Combined company expected to exceed $9 billion in total assets after closing
  • ➤Third Coast expects to issue 5,570,352 shares, leaving Great Plains shareholders 22% ownership
  • ➤Transaction expands Third Coast’s Dallas presence and establishes entry into Oklahoma
  • ➤Merger expected to close in first quarter of 2027, pending regulatory and shareholder approvals

Expert Statements

Bart Caraway, Founder, Chairman, President and Chief Executive Officer of Third Coast

“We are thrilled to join forces with Great Plains, an exceptional franchise rooted in relationships across Oklahoma and North Texas, a talented team, and a well-earned reputation for doing right by its customers. Together, we are creating a stronger organization with greater scale, expanded capabilities, and increased capacity to support our customers. This combination will strengthen our ability to serve businesses and communities across our markets while creating long-term value for all stakeholders.”

Mark Russell, Chief Executive Officer of Great Plains National Bank

“Great Plains was built on the belief that strong relationships create strong communities. As we looked to the future, it was important to find a banking partner that shared that belief. Third Coast's commitment to relationship banking, local leadership, and community investment makes this partnership a natural fit. Together, we can honor our heritage, expand opportunities for our customers and employees, and advance our shared purpose of growing communities throughout the markets we serve.”

Third Coast Bancshares, Inc. and Great Plains Bancshares, Inc. Announce Definitive Merger Agreement PR Newswire

HOUSTON and OKLAHOMA CITY, Oct. 7, 2026 /PRNewswire/ -- Third Coast Bancshares, Inc. ("Third Coast") (NYSE & NYSE Texas: TCBX), the parent company of Third Coast Bank, and Great Plains Bancshares, Inc. ("Great Plains"), the parent company of Great Plains National Bank, today jointly announced the signing of a definitive merger agreement pursuant to which Third Coast will acquire Great Plains in an all-stock transaction valued at approximately $239.6 million based on Third Coast's closing stock price as of October 6, 2026. On a pro forma basis, the combined company is expected to have approximately $9 billion in assets following the completion of the transaction.

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