United Natural Foods, Inc. has announced an executive team transition plan, bringing in a former General Mills executive to become chief financial officer next month.

Michael Zechmeister has been appointed senior vice president, effective Sept. 15, and he will succeed Mark Shamber as senior vice president, chief financial officer and treasurer, effective mid-October. Shamber will assist with the executive team transition and continue to assist the company with business strategy and development through Dec. 31.

“Mark has played an integral role in our growth and development over the last nine years and, on behalf of our board and management team, I want to thank him for his contributions,” Steve Spinner, the company’s president and chief executive officer, said in a prepared statement. “Over the next several weeks Mark will work closely with Mike [Zechmeister ] through this transition. We are excited to have Mike on board as a seasoned leader in finance with significant experience successfully managing and growing multi-billion-dollar businesses as we further adapt to meet the ever-changing needs of customers in an expanding and evolving marketplace.”

Zechmeister has more than 25 years of corporate finance, audit, treasury, operations, and merger and acquisition experience. During his tenure with General Mills, Inc., he served in a variety of senior finance roles, including most recently as vice president, finance, Yoplait USA.

“I have enjoyed working with Steve and the entire UNFI team over the last 12-plus years,” Shamber said. “I believe UNFI has a tremendously talented organization with a strong foundation for future growth.”