GARY L. RAINWATER

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Ameren Illinois Co

Filing Date	Source Excerpt
2002-03-28	GARY L. RAINWATER President and Chief Executive Officer of the Company and President and Chief Operating Officer of Ameren, Union Electric and Ameren Services. Mr. Rainwater was elected Executive Vice President of the Company in January 1997 and was named to his present position in December 1997. Before joining the Company he worked for Union Electric for 17 years, beginning his career in 1979 as an engineer. He was named General Manager-Corporate Planning in 1988 and Vice President in 1993. Mr. Rainwater was elected President of AER in 1999. He was elected President and Chief Operating Officer of Ameren, Union Electric and Ameren Services in 2001 at which time he relinquished his position as President of AER. Director of the Company since 1997. Other directorships: Union Electric (since 1998). The members of the Executive Committee are Messrs. Baxter, Mueller and Rainwater.
2003-03-27	GARY L. RAINWATER President and Chief Executive Officer of the Company, President and Chief Operating Officer of Ameren, Union Electric and Ameren Services and President of CILCORP and CILCO. Mr. Rainwater was elected Executive Vice President of the Company in January 1997 and was named to his present position in December 1997. Before joining the Company he worked for Union Electric for 17 years, beginning his career in 1979 as an engineer. He was named General Manager-Corporate Planning in 1988 and Vice President in 1993. Mr. Rainwater was elected President of AER in 1999 and of AEG in 2000. He was elected President and Chief Operating Officer of Ameren, Union Electric and Ameren Services in 2001 at which time he relinquished his position as President of AER and AEG. He was elected President of CILCORP and CILCO in 2003. Director of the Company since 1997. Other directorships: Union Electric (since 1998); CILCORP (since 2003); CILCO (since 2003). Age: 56.
2004-03-23	GARY L. RAINWATER President and Chief Executive Officer of the Company and Chairman, Chief Executive Officer and President of Ameren, UE, CILCORP, CILCO, and Ameren Services.... Director of the Company since 1997.

UNION ELECTRIC CO

Filing Date	Source Excerpt
2002-03-28	Mr. Rainwater began his career in 1979 as an engineer.
2003-03-27	Mr. Rainwater began his career with the Company in 1979 as an engineer.
2004-03-23	Chairman, Chief Executive Officer and President of the Company, Ameren, CILCORP, CILCO and Ameren Services.

Data sourced from SEC filings. Last updated: 2025-07-01