ST. LOUIS — Robert Vitale has been named chief financial officer of Post Holdings as part of the separation of Ralcorp and its branded ready-to-eat cereal business, Ralcorp Holdings Inc. said on Oct. 13. Mr. Vitale will join Ralcorp effective Nov. 1. According to Ralcorp, Mr. Vitale has considerable experience, including with complex multi-tiered financings, acquisitions and divestitures, and board-level corporate governance. He also has investment experience in the branded food, food ingredients and branded consumer products segments. He has been president and chief executive officer of AHM Financial Group, L.L.C., a diversified provider of insurance brokerage and wealth management services, since 2006. Earlier, he was a partner at Westgate Group, L.L.C., a consumer-oriented private equity firm based in St. Louis. He is a certified public accountant and earned his undergraduate degree from St. Louis University and his master’s of business administration degree from Washington University in St. Louis.