Trustmark Corporation, the Jackson, Mississippi-based parent of Trustmark Bank, filed an 8-K on November 12, 2026, disclosing the execution of a merger agreement under which Trustmark will merge with and into Hancock Whitney Corporation, with Hancock Whitney continuing as the surviving corporation.

Key Highlights

  • Agreement signed November 11, 2026: The Agreement and Plan of Merger between Hancock Whitney Corporation and Trustmark Corporation was dated November 11, 2026, according to the filing.
  • Trustmark merges into Hancock Whitney: Upon closing, Trustmark will merge with and into Hancock Whitney, which will continue as the surviving corporation.
  • Expected closing late Q1 2027: The acquisition is expected to close late in the first quarter of 2027, subject to regulatory approvals, shareholder approvals, and other customary closing conditions.
  • Dual-bank transaction: Trustmark Bank and Hancock Whitney Bank are the respective bank subsidiaries of the two holding companies involved in the transaction.
  • Investor materials furnished: A joint press release (Exhibit 99.1) and an investor presentation (Exhibit 99.2) were furnished with the filing in connection with presentations to analysts and investors.
  • Registered on NASDAQ:TRMK: Trustmark Corporation's common stock, no par value, is listed on the Nasdaq Global Select Market under the symbol TRMK.

Trustmark Corporation Enters Definitive Merger Agreement, Exiting as Independent Holding Company

According to the filing, Trustmark Corporation, incorporated in Mississippi and headquartered at 248 East Capitol Street, Jackson, Mississippi, is the parent company of Trustmark Bank. The 8-K discloses that on November 12, 2026, Trustmark and Hancock Whitney Corporation, the parent of Hancock Whitney Bank, issued a joint press release announcing the execution of their merger agreement. Under the terms described, Trustmark will cease to exist as a separate holding company upon closing, with Hancock Whitney serving as the sole surviving entity.

The filing states that the transaction is subject to the receipt of regulatory approvals, shareholder approvals from both companies, and the satisfaction of other customary closing conditions. The anticipated closing window is described as "late in the first quarter of 2027." No merger consideration terms, exchange ratios, or financial metrics are disclosed within the Item 7.01 body text of this filing; those details, to the extent furnished, would be found in the attached Exhibit 99.1 press release and Exhibit 99.2 investor presentation.

The 8-K was filed under Item 7.01 (Regulation FD Disclosure), and the filing explicitly notes that the information "shall not be deemed 'filed' for purposes of Section 18 of the Securities Exchange Act of 1934." The filing also confirms it was checked as a "Written communications pursuant to Rule 425 under the Securities Act," a designation used for communications relating to business combination transactions. The filing contains forward-looking statements, which both Hancock Whitney and Trustmark caution "are not guarantees of future performance" and are subject to numerous risks and uncertainties, as described in the filing's cautionary language.

What Was Disclosed

Trustmark Corporation filed an 8-K on November 12, 2026, disclosing that it entered a merger agreement dated November 11, 2026, under which it will merge into Hancock Whitney Corporation. The transaction is expected to close late in the first quarter of 2027, pending required approvals.