Third Coast Bancshares agrees to merge with Great Plains Bancshares in Oklahoma deal
On October 6, 2026, Third Coast Bancshares entered into an agreement to acquire Great Plains Bancshares, parent of Great Plains National Bank in Elk City, Oklahoma, through a two-step merger in which Great Plains shares convert into Third Coast common stock. The deal requires approval from shareholders of both companies, regulatory approvals and the effectiveness of a Form S-4, and it would increase the number of Third Coast shares outstanding.
Key points
- Agreement dated October 6, 2026; Great Plains shareholders holding about 27.6% of Great Plains stock signed a voting agreement to support the merger.
- Exchange ratio equals 5,570,352 divided by Great Plains shares outstanding at closing, and is reduced if Great Plains delivers less than $153,300,000 of adjusted capital, surplus and retained earnings.
- Great Plains would pay a termination fee of $11,981,827 in certain circumstances, including those involving alternative acquisition proposals.
- Either party may terminate if the merger is not completed by September 30, 2027; the Company is to add two directors, Todd Taylor and Paul M. Dickinson, to its board at closing.
The filing
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 13, 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.