secwatch.observer — SEC 8-K summary
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Issuer:     Third Coast Bancshares, Inc. (TCBX)
CIK:        0001781730
Form:       8-K
Filed at:   2026-10-07T10:45:09+00:00
Accession:  0001193125-26-416163
Event type: m_and_a
Sentiment:  positive
Materiality: 0.75
Item codes: 7.01, 8.01, 9.01
LLM model:  deepseek-v4.1-flash:cloud@v2

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

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1781730/000119312526416163/0001193125-26-416163-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1781730/000119312526416163/d146780d8k.htm
  HTML page:      https://secwatch.observer/filing/0001193125-26-416163

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