Commerce Bancshares Inc., the parent company of Commerce Bank, announced 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 September 30, 2025).

This 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, “We are delighted to announce the completion of the FineMark transaction, officially welcoming FineMark into our organization. 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.”

John Handy, president and chief executive officer, Commerce Trust, adds, "Our FineMark colleagues are remarkable, and we are thrilled to be one team. We have a stronger platform for continued growth in wealth management and private banking, and I look forward to working with them to serve clients and earn new relationships.”

Promptly following the closing, FineMark National Bank & Trust was merged with and into Commerce Bank. 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. Joseph Catti will become Chairman of Commerce Trust and will continue to lead the FineMark Bank & Trust division of Commerce Bank. The conversion of operational systems necessary for the integration is planned for the second half of 2026.