Item 1.01. Entry into a Material Definitive Agreement

On May 7, 2009, UMB Fund Services, Inc. ("UMBFS"), a subsidiary of UMB Financial Corporation (the "Company"), completed the acquisition of all of the issued and outstanding capital stock of J.D. Clark & Co., Inc. ("Clark & Co.") pursuant to a Stock Purchase Agreement dated as of May 7, 2009 (the "Agreement"), by and among Jeffrey D. Clark, Bonnie J. Clark, Michelle Jensen, Chad J. Allen, Jill L. Calton (collectively, the "Selling Sharholders"), UMBFS, and, solely with respect to certain indemnity provisions in the Agreement, the Company. Clark & Co. is a full-service administrative, accounting and advisory firm serving the hedge fund industry. Under the Agreement, UMBFS paid the Selling Shareholders an aggregate cash payment at closing of approximately $23 million. The Selling Shareholders also are eligible to receive potential annual earn-out payments during the next four years based on the performance of Clark & Co. Following the closing of the transaction, Clark & Co. will continue to operate in substantially the same manner as a wholly owned subsidiary of UMBFS. Jeffrey D. Clark will continue to serve as President and Chief Executive Officer of Clark & Co.