Hancock Whitney Corporation has agreed to acquire Trustmark Corporation in an all-stock transaction valued at about $3.2 billion, the two banks announced on 12 November 2026. The merger would create a Gulf South regional bank with about $58 billion of assets and a presence across six Southeastern states.
Trustmark shareholders will receive 0.7463 Hancock Whitney shares for each share they hold, which values Trustmark at $54.02 a share, an 18.6% premium to its last close. Hancock Whitney shareholders will own about 65% of the combined company and Trustmark shareholders about 35%.
THE DEAL ARITHMETIC
The banks expect the transaction to add about 7% to Hancock Whitney's estimated 2028 earnings per share. It is expected to be mildly dilutive to regulatory capital at close and to reduce tangible book value per share by about 7%, with an earn-back of about 2.8 years including merger expenses.
Hancock Whitney shares fell 11% to $64, while Trustmark shares rose 4.5% to $47. Stephens analyst Matt Olney said the timing was somewhat surprising, given that Hancock Whitney had just closed its One Florida Bank acquisition and deployed a considerable portion of its excess capital.
TWO REGIONAL FRANCHISES
Trustmark, headquartered in Jackson, Mississippi, had assets of $19.1 billion at 30 September 2026 and operates offices in Alabama, Florida, Georgia, Mississippi, Tennessee and Texas. Hancock Whitney has offices and financial centres in Mississippi, Alabama, Florida, Louisiana and Texas, and loan and deposit production offices in the Nashville and Atlanta areas.
The deal comes as mergers continue to reshape a United States banking system that comprised 4,238 FDIC-insured commercial banks and savings institutions with combined assets of US$26.5tn at end-June 2026, down from 4,421 a year earlier as mergers continued to thin the community-bank tier, according to TGB's market profile. The 18 institutions with assets above US$250bn held 64% of industry assets.
TIMETABLE AND LEADERSHIP
The merger is expected to close late in the first quarter of 2027, subject to regulatory approvals, votes by both sets of shareholders and other customary conditions. Five Trustmark directors, including its president and chief executive Duane Dewey, will join the Hancock Whitney board after the close, and Trustmark branches and staff will operate under the Hancock Whitney name after conversion, which is expected in late 2027.
John Hairston, president and chief executive of Hancock Whitney, said the combination enhances the bank's platform, expands growth opportunities and strengthens its core deposit franchise. Dewey said that, given the strong cultural alignment and complementary business lines, he believed the transaction would generate substantial value for customers, shareholders, staff and communities.
Raymond James is financial adviser to Hancock Whitney, with Wachtell, Lipton, Rosen & Katz as legal adviser, while Goldman Sachs is advising Trustmark.
THE TGB VIEW
At about $58 billion of assets, the combined bank would still sit below UMB Financial, which is 50th in TGB's 2026 table of the largest banks in the Americas with total assets of US$73.1bn, and well short of Zions Bancorporation, 40th with US$89.0bn. The deal keeps the combined bank within six Southeastern states rather than building national scale, and the 2.8-year earn-back on tangible book value, including merger expenses, is the measure the banks themselves have set. The first checkpoints are the shareholder votes and regulatory approvals ahead of a close planned for late in the first quarter of 2027.
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