425: Third Coast Bancshares Updates Merger Proxy Amid Shareholder Demands

Third Coast Bancshares, Inc. has issued supplemental disclosures for its merger with Keystone Bancshares, Inc. following shareholder demand letters, clarifying financial projections and valuation analyses.

Summary

• Third Coast Bancshares, Inc. (TCBX) filed supplemental disclosures for its proposed merger with Keystone Bancshares, Inc. on January 16, 2026.
• The disclosures were made in response to four demand letters from purported Third Coast shareholders, received between December 4, 2025, and January 16, 2026, alleging omissions of material information in the joint proxy statement/prospectus.
• Third Coast and Keystone deny all allegations but provided the supplemental disclosures to moot the claims, stating this decision does not imply legal necessity or materiality.
• The supplemental disclosures do not affect the merger consideration or the timing of the special shareholder meetings, which are scheduled for January 23, 2026 (Third Coast) and January 29, 2026 (Keystone).
• Key updates include detailed financial projections for both Third Coast and Keystone through 2030/2031, and revised valuation analyses from Raymond James.
• The merger is projected to be 1.9% dilutive to Third Coast's estimated tangible book value per share and 0.4% dilutive on a fully diluted estimated tangible book value per share at March 31, 2026.
• Conversely, the merger is expected to be 5.2% accretive to Third Coast's estimated calendar year 2027 EPS and 5.3% accretive to 2028 EPS.

Sentiment

Score: 6

Explanation: The filing addresses shareholder concerns by providing additional detail, which is positive for transparency. The merger projections show short-term dilution but long-term EPS accretion, which is generally favorable. However, the existence of demand letters and the need for supplemental disclosures introduce a minor element of uncertainty or potential friction, and the forward-looking statements carry significant risk warnings.

Positives

• The merger is projected to be 5.2% accretive to Third Coast's estimated calendar year 2027 EPS.
• The merger is projected to be 5.3% accretive to Third Coast's estimated calendar year 2028 EPS.
• Third Coast's standalone net income is projected to grow from $59.8 million in 2025 to $86.3 million in 2030.
• Third Coast's standalone total assets are projected to grow from $5.1 billion in 2025 to $7.6 billion in 2030.
• Keystone's standalone net income is projected to grow from $9.9 million in 2025 to $14.5 million in 2030.
• Keystone's standalone total assets are projected to grow from $1.0 billion in 2025 to $1.5 billion in 2030.

Negatives

• The merger is projected to be 1.9% dilutive to Third Coast's estimated tangible book value per share at March 31, 2026.
• The merger is projected to be 0.4% dilutive on a fully diluted estimated tangible book value per share at March 31, 2026.
• Third Coast's 2030 adjusted net income for valuation purposes was adjusted downward by $7.1 million due to a projected investment loss from previous distributions.
• Keystone's 2030 adjusted net income for valuation purposes was adjusted downward by $1.2 million due to a projected investment loss from previous distributions.

Risks

• The occurrence of any event, change, or circumstance that could give rise to the right of one or both parties to terminate the definitive merger agreement.
• The outcome of any legal proceedings that may be instituted against Third Coast or Keystone.
• The possibility that the transaction does not close when expected or at all due to unreceived or unsatisfied regulatory, shareholder, or other approvals and conditions, or that such approvals may result in the imposition of conditions that could adversely affect the combined company or the expected benefits of the transaction.
• The risk that the benefits from the transaction may not be fully realized or may take longer to realize than expected, including as a result of changes in, or problems arising from, general economic and market conditions, interest and exchange rates, monetary policy, laws and regulations and their enforcement, and the degree of competition in the geographic and business areas in which Third Coast and Keystone operate.
• Disruption to the parties' businesses as a result of the announcement and pendency of the transaction.
• The risk that the integration of each party's operations will be materially delayed or will be more costly or difficult than expected or that the parties are otherwise unable to successfully integrate each party's businesses into the others' businesses.
• The possibility that the transaction may be more expensive to complete than anticipated, including as a result of unexpected factors or events.
• Reputational risk and potential adverse reactions of Third Coast's or Keystone's customers, suppliers, employees or other business partners, including those resulting from the announcement or completion of the transaction.
• The dilution caused by Third Coast's issuance of additional shares of its common stock in connection with the transaction.
• A material adverse change in the financial condition of Third Coast or Keystone.
• General competitive, economic, political and market conditions.
• Major catastrophes such as earthquakes, floods or other natural or human disasters, including infectious disease outbreaks.
• The diversion of management's attention and time from ongoing business operations and opportunities on merger-related matters.
• Other factors that may affect future results of Third Coast and Keystone including changes in asset quality and credit risk, the inability to sustain revenue and earnings growth, changes in interest rates and capital markets, inflation, customer borrowing, repayment, investment and deposit practices, the impact, extent and timing of technological changes, capital management activities and other actions of the Board of Governors of the Federal Reserve System and legislative and regulatory actions and reforms.

Future Outlook

The filing provides detailed prospective financial information for Third Coast and Keystone on a standalone basis through 2030/2031, projecting consistent growth in net income and total assets. The merger is anticipated to be dilutive to tangible book value per share in the short term (March 2026) but accretive to EPS in 2027 and 2028, suggesting a positive long-term financial impact from the acquisition. However, the company explicitly states that actual results may vary materially from these projections due to various risks and uncertainties inherent in forward-looking statements.

Management Comments

• Third Coast and Keystone deny all allegations in the Demand Letters and believe that no additional disclosure is required in the joint proxy statement/prospectus.
• Third Coast hereby makes additional disclosures (the Supplemental Disclosures) to supplement the disclosures contained in the joint proxy statement/prospectus.
• Third Coast and the Third Coast board of directors deny that they have violated any laws or breached any duties to the shareholders of Third Coast or Keystone in connection with the joint proxy statement/prospectus.
• None of the Supplemental Disclosures nor any other disclosure in this Current Report on Form 8-K should be construed as an admission of the legal necessity or materiality under applicable laws of any Supplemental Disclosures.
• This decision to make the Supplemental Disclosures will not affect the merger consideration to be paid in connection with the Proposed Transaction or the timing of the special meetings of Third Coast or Keystone shareholders.

Industry Context

The banking sector frequently sees mergers and acquisitions as a strategy for growth, market expansion, and achieving economies of scale. The provided selected companies and transaction analyses indicate that this merger is occurring within an active M&A environment for regional and national banks, with various valuation multiples and deal premiums observed across the industry. The projections for both Third Coast and Keystone show consistent growth, aligning with a generally stable or growing regional banking outlook, assuming no major economic downturns.

Comparison to Industry Standards

• The filing includes detailed tables of "Selected Companies" for Third Coast and Keystone, providing comparative metrics such as Total Assets, LTMROAA, Price/TBVPS, Price/TBVPS(ex. AO CI), and Price/LTMEPS against peers like Origin Bancorp Inc. ($9,678 million assets, 0.71% LTMROAA), FirstSun Capital Bancorp ($8,436 million assets, 1.10% LTMROAA), Southside Bancshares Inc. ($8,340 million assets, 1.02% LTMROAA), InBankshares Corp ($1,375 million assets, 0.82% LTMROAA), and Solera National Bancorp Inc. ($1,239 million assets, 1.75% LTMROAA).
• "Selected National Transactions Analysis" and "Selected Regional Transactions Analysis" tables provide benchmarks for deal valuation metrics (DV/TBV, DV/TBV(ex.AOCI), DV/LTMNetIncome, CoreDepositPremium) from recent transactions involving targets like 1st Colonial Bancorp ($877 million assets, 1.02% LTMROAA), Frontier Holdings LLC ($1,408 million assets, 1.02% LTMROAA), BankFinancial Corp ($1,429 million assets, 0.14% LTMROAA), Progressive Bancorp Inc. ($755 million assets, 0.47% LTMROAA), and NBC Corp. of Oklahoma ($906 million assets, 0.97% LTMROAA).
• Raymond James selected a terminal price-to-earnings multiple range based on the long-term average of the price-to-earnings multiple of selected banking indexes and current multiples for similar public companies, with 10.6x representing the approximate median NASDAQ Bank index price/NTM EPS multiple for the last five years.

Legal Proceedings

• Four demand letters were received from purported Third Coast shareholders between December 4, 2025, and January 16, 2026, alleging that the joint proxy statement/prospectus omits material information in violation of federal securities laws and state law disclosure requirements.
• Third Coast and Keystone deny all allegations in the Demand Letters and believe no additional disclosure is required.
• Supplemental disclosures were made to moot these disclosure claims, without admitting legal necessity or materiality.

Stakeholder Impact

• Shareholders: Provided additional information to address concerns raised in demand letters, potentially improving transparency for voting on the merger. Third Coast shareholders face short-term tangible book value dilution but long-term EPS accretion.
• Customers: Potential for disruption to services or changes in banking operations post-merger.
• Employees: Potential for integration challenges, changes in roles, or redundancies post-merger.
• Suppliers/Business Partners: Potential for changes in relationships or contracts post-merger.

Next Steps

• Special meeting of Third Coast shareholders on January 23, 2026, to vote on the Proposed Transaction.
• Special meeting of Keystone shareholders on January 29, 2026, to vote on the Proposed Transaction.
• Completion of the Proposed Transaction, subject to regulatory, shareholder, and other approvals.

Key Dates

Recommendation

The filing primarily provides supplemental information for an ongoing merger, clarifying financial projections and valuation methodologies. While the projected EPS accretion is positive for the long term, the short-term tangible book value dilution and the existence of shareholder demand letters introduce some uncertainty. The company denies any wrongdoing and states the merger timing and consideration are unaffected. For a seasoned investor, this filing doesn't present new information that would drastically alter the fundamental investment thesis for or against the merger, but rather provides more detail to support the existing decision. Therefore, a 'hold' recommendation is appropriate, awaiting the completion of the merger and subsequent performance.

Keywords

Third Coast Bancshares, Keystone Bancshares, Merger, Acquisition, Banking, Financial Services, SEC Filing, Form 8-K, Proxy Statement, Shareholder Demands, Financial Projections, Valuation, Dilution, Accretion, Bank M&A, TCBX