Third Coast to acquire Great Plains Bancshares in $239.6M all-stock deal; combined assets ~$9B

Third Coast Bancshares, Inc.

All-stock deal valued at approximately $239.6M based on TCBX's Oct 6, 2026 closing price; Third Coast expects to issue 5,570,352 shares.
Pro forma ownership: ~78% Third Coast shareholders, ~22% Great Plains shareholders; combined company expected to have ~$9B in assets.
Great Plains (founded 1907, HQ Oklahoma City) has 23 branches across Oklahoma and Texas and more than $1.9B in assets.
Expected to close in Q1 2027, subject to regulatory approvals, Great Plains shareholder approval and Third Coast shareholder approval of the share issuance.
Two Great Plains representatives will join the Third Coast and Third Coast Bank boards; Great Plains CEO Mark Russell stays in a leadership role, reporting to Third Coast CEO Bart Caraway.

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