Ameren's Executive Leadership 
 

Warner L. Baxter

Chairman, President and Chief Executive Officer
Ameren Corporation
 
Warner Baxter became chairman, president and chief executive officer of Ameren Corporation in 2014. From 2009 to early 2014, he served as president and CEO of Ameren Missouri, the largest energy provider in Missouri, serving more than 1.2 million electric and gas customers with revenues in excess of $3 billion. (more)
  
Richard J. Mark
Ameren Illinois Chairman, President and
Chief Executive Officer
 
Richard J. Mark is chairman, president and CEO of Ameren Illinois Company. In this position, he is responsible for the natural gas and electric delivery business, customer service, gas support and community affairs for Ameren Illinois. (more)

 

Michael L. Moehn

Ameren Missouri Chairman, President and
Chief Executive Officer

Michael Moehn was elected chairman, president and chief executive officer of Ameren Missouri on April 1, 2014, and is responsible for Missouri's largest energy provider in serving more than 1.2 million electric and gas customers across central and eastern Missouri, including the greater St. Louis area. (more)

 

 

Daniel F. Cole

Ameren Services Chairman, President and
Chief Executive Officer
 
Daniel F. Cole on May 1, 2009, became chairman, president and chief executive officer of Ameren Services, an Ameren subsidiary providing administrative and technical support services to Ameren and its operating companies, subsidiaries and affiliates. (more)

  

Maureen A. Borkowski

Chairman, President and Chief Executive Officer
Ameren Transmission Company
Ameren Transmission Company of Illinois
  
Maureen A. Borkowski is chairman, president and chief executive officer of Ameren Transmission Company (ATX) - a subsidiary dedicated to electric transmission infrastructure investment. In addition to leading the development of new transmission, she is also responsible (more)

  

Mark Birk

Ameren Senior Vice President
Corporate Planning and Business Risk Management
  
Mark Birk was named senior vice president, Corporate Planning and Business Risk Management in January 2012. Prior to assuming this position, he had served as vice president of Power Operations since September 2004, vice president of Ameren Energy since August 2003 and general manager of Energy Delivery Technical Services since October 2001. (more)
   

Fadi M. Diya

Ameren Missouri Senior Vice President
and Chief Nuclear Officer

Fadi Diya is senior vice president and chief nuclear officer (CNO) for Ameren Missouri. He is responsible for all of Ameren Missouri's nuclear operations. (more)
 

   

Mary P. Heger

Ameren Services Vice President and Chief Information Officer, Information Technology and Ameren Services Center

Mary P. Heger is vice president and chief information officer (CIO) of Information Technology and the Ameren Service Center for Ameren Services, a subsidiary of Ameren Corporation. She directs the staff responsible for all IT application development, infrastructure, networks, payroll, bill processing and accounts payable. (more)
 

Mark C. Lindgren

Ameren Services Vice President and
Chief Human Resources Officer
  
Mark C. Lindgren is vice president of Human Resources for Ameren where he directs the staff responsible for all Human Resources, including benefits, compensation, employee relations, hiring, leadership and organizational development. (more)
 
     

Martin J. Lyons

Ameren Executive Vice President and
Chief Financial Officer
 
Martin J. Lyons is executive vice president and chief financial officer for Ameren Corporation. In his current position, Lyons is responsible for corporate planning, risk management, financial accounting and reporting, tax planning and compliance, treasury and investor relations functions. (more)

  

Charles D. Naslund

Ameren Services Executive Vice President
Corporate Oversight
   
Charles D. Naslund is executive vice president, Corporate Oversight - a position he assumed on March 1, 2013. He also serves as executive vice president, Generation and Environmental Projects for Ameren Missouri. (more)


  

Gregory L. Nelson

Ameren Senior Vice President
General Counsel and Secretary
  
Gregory L. Nelson is senior vice president, general counsel and secretary of Ameren, where he is responsible for the legal, federal legislative, security and economic development functions for the corporation. (more)


  

executive leadership, executives, executive leaders, senior management, Ameren senior management
 
 
Follow Us