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AI brief of an SEC Form 8-K · Third Coast Bancshares, Inc. (TCBX)

Third Coast to acquire Great Plains Bancshares in $239.6 million all-stock deal

Neutral Impact 5 of 5 m&a Written later

Third Coast Bancshares (TCBX) agreed on October 6, 2026 to acquire Great Plains Bancshares in an all-stock deal valued at about $239.6 million, based on Third Coast's October 6 closing price. The combined company is expected to have about $9 billion in assets, and Great Plains shareholders would own about 22% of Third Coast after closing, which means existing Third Coast shareholders would be diluted. The deal is expected to close in the first quarter of 2027, subject to regulatory and shareholder approvals.

Key points

  • Transaction valued at about $239.6 million, all in Third Coast common stock, with 5,570,352 shares to be issued
  • Pro forma ownership of about 78% for Third Coast shareholders and 22% for Great Plains shareholders
  • Great Plains reported about $1.9 billion in total assets as of June 30, 2026, with a 23-branch footprint across Oklahoma and Texas
  • Expected close in the first quarter of 2027, subject to regulatory approvals and shareholder votes at both companies

The filing

CompanyThird Coast Bancshares, Inc. (TCBX)
Form8-K, current report
Filed with the SECOct 7, 2026, 6:45 AM ET
Accession number0001193125-26-416163

Items reported: 7.01 Regulation FD Disclosure8.01 Other Events

Read the filing on SEC.gov ↗

Written by AI on Nov 9, 2026, 11:43 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on October 07, 2026.

Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.