8-K/A: Third Coast Bancshares Completes Keystone Merger

Third Coast Bancshares, Inc. has finalized its merger with Keystone Bancshares, Inc., integrating all operations as of February 1, 2026.

Summary

• Third Coast Bancshares, Inc. completed its merger with Keystone Bancshares, Inc. effective February 1, 2026.
• Keystone Bancshares, Inc. reported total assets of $1.018 billion and total deposits of $864.4 million as of December 31, 2025.
• The merger involved a combination of stock and cash consideration, with Keystone shareholders receiving 0.45925 shares of Third Coast common stock or cash equivalent per share.
• Pro forma combined assets for the merged entity are estimated at $6.35 billion as of December 31, 2025.
• Keystone Bank, SSB was merged into Third Coast Bank, with the latter surviving.

Sentiment

Score: 6

Explanation: StockSavvy.ai views this as a neutral-to-positive event; while the merger is a strategic milestone for growth, the increased provision for credit losses and high CRE concentration at the acquired entity warrant cautious monitoring.

Positives

• Successful completion of a strategic acquisition expanding market presence in Texas.
• Keystone maintained a well-capitalized status under regulatory frameworks as of December 31, 2025.
• The merger is expected to create operational synergies and scale for the combined entity.
• Keystone reported net income of $6.25 million for the year ended December 31, 2025.

Negatives

• Keystone experienced a decrease in net income from $6.90 million in 2024 to $6.25 million in 2025.
• Provision for credit losses increased significantly to $5.57 million in 2025 compared to $0.88 million in 2024.
• The company holds a concentration in commercial real estate loans, representing 443.8% of total risk-based capital as of December 31, 2025.

Risks

• Concentration risk in commercial real estate and construction lending, which may be subject to heightened regulatory scrutiny.
• Potential for integration challenges following the merger of Keystone Bank into Third Coast Bank.
• Interest rate volatility affecting the fair value of investment securities available-for-sale.
• Credit risk associated with the loan portfolio, particularly in the current economic environment.

Future Outlook

The filing provides pro forma financial information illustrating the combined entity's position as if the merger occurred on January 1, 2025, but does not provide specific forward-looking guidance on future earnings or performance.

Management Comments

• Management believes the consolidated financial statements present fairly the financial position of the company in accordance with GAAP.
• Management believes the company is not exposed to significant credit risks on cash and cash equivalents.
• Management believes the decline in fair value of investment securities is due to interest rate changes rather than credit quality.

Industry Context

StockSavvy.ai notes that this merger is consistent with the ongoing trend of consolidation among regional and community banks in Texas, aimed at achieving economies of scale and diversifying loan portfolios to compete with larger national institutions.

Comparison to Industry Standards

• Keystone's capital ratios exceeded the 'well-capitalized' thresholds required by regulatory agencies.
• The bank's commercial real estate concentration levels are noted as requiring ongoing monitoring under interagency guidance.
• The use of the acquisition method of accounting for the merger aligns with standard industry practices for bank combinations.

Corporate Governance

Legal Proceedings

• The company is not involved in any material legal proceedings as of the date of the filing.

Related Party Transactions

• The company disclosed loans to executive officers, directors, and their affiliates totaling $13.59 million as of December 31, 2025.

Stakeholder Impact

• Shareholders of Keystone received Third Coast stock or cash consideration.
• Customers of Keystone Bank are now customers of Third Coast Bank.

Next Steps

• Integration of Keystone Bank operations into Third Coast Bank.
• Ongoing monitoring of the combined loan portfolio and credit quality.

Key Dates

Recommendation

The merger is a significant strategic event that expands the company's footprint, but the integration risk and the acquired entity's credit quality trends suggest a wait-and-see approach until the first combined quarterly results are reported.

Keywords

Merger, Banking, Acquisition, Financial Statements, Pro Forma, Texas Banking, Third Coast Bancshares, Keystone Bancshares