Commerce Bancshares, Inc. (NASDAQ: CBSH), parent company of Commerce Bank, announced Jan. 1, 2026, the closing of its previously announced acquisition of FineMark Holdings, Inc., the parent company of FineMark National Bank & Trust.
Upon closing of the merger, Commerce has approximately $36 billion of assets and $90 billion of assets under administration, ranking it 15th among bank-managed trust companies based on assets under management (on a pro forma basis using data as of Sept. 30, 2025).
The acquisition expands Commerce’s private banking and wealth management business, building on its existing presence in Florida, and adds new locations in Arizona and South Carolina.
John Kemper, president and chief executive officer of Commerce, said, “FineMark is a natural culture fit, with a history of strong asset quality, a shared client-centric approach to wealth management and banking, and a commitment to building strong communities. Together, we are positioned to accelerate growth, expand our reach, and deliver even greater value to clients, shareholders, and our communities for many years to come.”
Following the closing, FineMark National Bank & Trust was merged with and into Commerce Bank.
Officials said FineMark will operate as FineMark Bank & Trust, a division of Commerce Bank, and will continue to serve clients from its current locations while preserving existing advisor-client relationships.
The conversion of operational systems necessary for the integration is planned for the second half of 2026.
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