Ameren Corp - Company Profile
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The following section provides information on Ameren Corp’s senior management, executives, CEO and key decision makers and their roles in the organization. For more insight into Ameren Corp's management and employees, unlock the full data with our company analytics monitoring tool.
Executives
Martin J. Lyons
Chief Executive Officer; President; Chairman Executive BoardMr. Marty Lyons has been the Chairman of the company since 2023. He also serves as the President, Director and Chief Executive Officer of the company since January 2022. Prior to this, he served as the Vice President and Controller. Previously, he served as the Chief Financial Officer of Ameren Services.
Mark C. Birk
President - Ameren Missouri; Chairman - Ameren Missouri Executive BoardMr. Mark C. Birk has been the Chairman and President of Ameren Missouri of the company since January 2022. Prior to this, he served as the General Manager of company's Meramec Energy Center of energy delivery technical services in 2001. Previously, he served as the Vice President of energy trading in 2003; Vice President of Power Operations in 2005; Senior Vice President of Corporate Strategy and Enterprise Risk Management in 2012; and Senior Vice President of Corporate Safety, Strategy and Nuclear Operations Oversight in 2014.
Michael L. Moehn
Chairman-Ameren Services; President - Ameren Services; Chief Financial Officer; Senior Executive Vice President Senior ManagementMr. Michael L. Moehn has been the Senior Executive Vice President and Chief Financial Officer of Ameren and Chairman and president of Ameren Services since December 2019. Prior to this, he served as the Chairman and President at Ameren Missouri, a subsidiary of the company, from 2014 to 2019. He also served as the Senior Vice President of Customer Operations at Ameren Missouri.
Theresa A. Shaw
Chief Accounting Officer; Senior Vice President - Finance Senior ManagementMs. Theresa A. Shaw has been the Chief Accounting Officer and Senior Vice President for Finance of the company since 2021. Prior to this role, she was the Senior Vice President of Regulatory Affairs and Financial Services for Ameren Illinois from 2019 to 2021 and was the Vice President of Regulatory Affairs and Financial Services for Ameren Illinois from 2018 to 2019. She joined the company in 2014 as the Vice President of Internal audit for Ameren and was employed in that position till 2018.
Gwendolyn G. Mizell
Senior Vice President; Chief Sustainability, Diversity & Philanthropy Officer-Ameren Services Senior ManagementMs. Gwendolyn G. Mizell has been the Senior Vice President and Chief Sustainability, Diversity & Philanthropy Officer for Ameren Services of the company since 2023. She also served as the Vice President of Sustainability and Innovation.
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