---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-033737"
form_type: "8-K"
ticker: "TCBX"
cik: "0001781730"
company_name: "Third Coast Bancshares, Inc."
filed_at: "2026-02-02T23:59:59+00:00"
generated_at: "2026-05-16T05:42:13.032554+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Third Coast Bancshares completes Keystone merger, combined assets exceed $6B

## Summary
- Merger effective Feb 1, 2026; Keystone shareholders received ~2.6M TCBX shares and $20M cash.
- Combined company total assets exceed $6 billion.
- Jeff Wilkinson appointed to TCBX board and as Chairman – Austin Market; Bryan St. George named President of Commercial Services.
- Wilkinson employment agreement: $481,500 base salary, $1.4M retention bonus (half within 30 days, half after one year).
- Customer conversion of Keystone Bank branches expected in summer 2026; Keystone customers continue current service until then.

## SEC filing metadata
- accession: 0001193125-26-033737
- form_type: 8-K
- ticker: TCBX
- cik: 0001781730
- company_name: Third Coast Bancshares, Inc.
- filed_at: 2026-02-02T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.01, 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1781730/000119312526033737/0001193125-26-033737-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1781730/000119312526033737/tcbx-20260201.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-033737
- JSON: https://secwatch.observer/filing/0001193125-26-033737.json
- Plain text: https://secwatch.observer/filing/0001193125-26-033737.txt

## Source-grounded claims
- claim_id: 7ebc0cbb80dc7cbc69984fc306187394bb89abcc
  claim: Third Coast Bancshares, Inc. completed an acquisition involving Keystone Bancshares, Inc. for approximately 2.6 million shares of Third Coast common stock and $20 million in cash (closed 2026-02-01).
  evidence_excerpt: of the Merger Agreement, a copy of which is filed as Exhibit 2.1 and incorporated herein by reference. The total aggregate consideration payable in the Merger was approximately 2.6 million shares of Third Coast common stock and $20 million in cash. The issuance of shares of Third Coast common stock in connection with the Merger was registered under the Securities
  evidence_url: https://www.sec.gov/Archives/edgar/data/1781730/000119312526033737/0001193125-26-033737-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.