Thomas R. Voss

Chief Operating Officer, Ameren.

Companies

AmerenChair Feb 28, 2011 to Mar 12, 2014¹
AmerenChief executive officer Feb 10, 2010 to Mar 12, 2014²
AmerenPresident Feb 10, 2010 to Feb 14, 2014²
AmerenChief operating officer Feb 14, 2006 to Mar 4, 2009³

Sources

The numbers on this page point here. Each one links to the record it came from.

1
SEC EDGARAmeren, Chair
2
SEC EDGARAmeren, Chief executive officer
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SEC EDGARAmeren, Chief operating officer