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Third Coast to acquire Great Plains in merger deal

PUBLIC · TCBXOct 07, 2026

Acquiring Company

Third Coast Bancshares

Acquired Company

Great Plains Bancshares

HumbleOklahoma CityFinancial ServicesFinanceLendingBankingFinancial ServicesFinanceBanking

Description

Third Coast Bancshares, Inc. has signed a definitive merger agreement to acquire Great Plains Bancshares, Inc. in an all-stock transaction valued at approximately $239.6 million. The merger will combine the strengths of both companies, creating a firm with over $9 billion in assets. The transaction is expected to close in the first quarter of 2027, pending regulatory and shareholder approvals.

Company Information

Company

Third Coast Bancshares

Location

Humble, Texas, United States

About

Third Coast Bank, SSB, was launched in 2008 by a group of local entrepreneurs with a passion for supporting the business community along the Texas Gulf Coast. Since then, our bank has grown to $2 billion in assets, with over 250 employees, and 12 locations. We've expanded to serve more Texas communities while maintaining our focus on responsive service and long-lasting relationships.

Fundz sees it the moment Third Coast Bancshares makes an acquisition, hires an exec or expands, usually minutes after it happens, and tells you who to reach.

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Frequently asked

Who acquired Great Plains Bancshares?

Great Plains Bancshares was acquired by Third Coast Bancshares, based in Humble. The deal was reported on October 7, 2026. Third Coast Bank, SSB, was launched in 2008 by a group of local entrepreneurs with a passion for supporting the business community along the Texas Gulf Coast. Third Coast Bancshares is publicly traded (TCBX) and operates in Financial Services.

When did Third Coast Bancshares acquire Great Plains Bancshares?

Third Coast Bancshares's acquisition of Great Plains Bancshares was reported on October 7, 2026. Third Coast Bancshares, Inc. has signed a definitive merger agreement to acquire Great Plains Bancshares, Inc. in an all-stock transaction valued at approximately $239.6 million. Fundz records the date the transaction was first publicly reported, sourced from filings and company announcements.

What does Great Plains Bancshares do?

Great Plains Bancshares, Inc. is the parent company of Great Plains National Bank, with a strong history of over 100 years in the banking sector. It is privately held, operating in Financial Services, and is based in Oklahoma City.

This company was part of an acquisition. Fundz tracks who bought whom, and who to call on both sides.

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Fundz is a real-time business intelligence platform powered by agentic AI that proactively delivers personalized daily signals, including funding rounds, executive changes, M&A activity, 13F institutional filings, SEC 8-K events, investor activity, and website modifications, based on each user's watchlist and ICP. A trusted data source at firms such as BlackRock, Oracle, Kleiner Perkins, LinkedIn, HubSpot, and Cloudflare, Fundz democratizes the institutional-grade intelligence that previously required a PitchBook or Bloomberg terminal. Features include FundzWatch™ for automated website change detection, Daily Briefing for AI-powered daily briefings, and unified cross-signal alerts across 281,000+ organizations. Developers and data teams can access these signals programmatically via the Fundz Funding Data API, with transparent published pricing.