Warner Baxter 
Ameren Missouri President and Chief Executive Officer 
Warner Baxter is Ameren Missouri’s president and chief executive officer. 

Warner Baxter became president and CEO of Ameren Missouri on May 1, 2009. Ameren Missouri is the largest energy provider in the State of Missouri, serving over 1.2 million electric and gas customers with revenues in excess of $3 billion. Prior to this role, Mr. Baxter was executive vice president and chief financial officer of Ameren Corporation, where he led the finance, strategic planning and business risk management functions of the entire enterprise beginning in 2003. In 2006, Mr. Baxter assumed the additional duties of president and CEO of Ameren Services.


Mr. Baxter joined Union Electric in August 1995 as assistant controller. He was named controller of Union Electric Company in 1996. Following the 1997 merger of Union Electric and CIPSCO Incorporated, he served as vice president and controller of Ameren Corporation and Ameren Services. In 2001, Mr. Baxter was named senior vice president, Finance.


Before joining Ameren, Mr. Baxter served as senior manager in PricewaterhouseCooper’s LLP National Office in New York City from 1993 to 1995. He worked in the Accounting and SEC Services Department where he provided consulting services and served as one of the firm’s liaisons with the major accounting standard setting bodies in the U.S. From 1983 to 1993, Mr. Baxter worked in the Accounting and Auditing Services Department of the firm’s St. Louis office, where he provided auditing and consulting services to clients in a variety of industries.


Mr. Baxter earned a Bachelor of Science degree in accounting from the University of Missouri - St. Louis and passed the Certified Public Accountant examination. He is a member of the American Institute of Certified Public Accountants and the Missouri Society of Certified Public Accountants. In addition, Mr. Baxter has made meaningful and long-lasting contributions to higher education through his involvement at the University of Missouri and the University of Missouri - St. Louis. He is a member of the University of Missouri - St. Louis Chancellor's Council (and past president) and he serves on the University of Missouri 100 Board.  


Today, Mr. Baxter serves on the boards of the Nuclear Energy Institute, the National Academy for Nuclear Training Accrediting Board, UMB Financial Corporation, Barnes-Jewish Hospital, and the Missouri Energy Development Association (MEDA). He is also actively involved with several charitable organizations, including his role as Chair of the American Cancer Society's St. Louis Chapter of CEOs Against Cancer and the American Heart Association.

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