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Ameren AEE Business Segments

TTM Q1 '26TTM Q4 '25TTM Q3 '25TTM Q2 '25TTM Q1 '25
Revenue by Business
Ameren Illinois Electric Distribution$2.47B+14.6%$2.4B+14.8%$2.37B+14.7%$2.22B+7.2%$2.16B+2.6%
Ameren Illinois Transmission$647M+10.2%$637M+12.9%$624M-36.9%$603M-24.7%$587M-8.1%
Ameren Transmission$879M+9.1%$862M+10.4%$853M+13.6%$823M+12.9%$806M+15.3%
Union Electric Company-$35M-6.1%-$32M+3.0%-$32M0.0%-$32M0.0%-$33M-6.5%
Revenue by Product
Electric$1.52B+16.8%$1.57B+34.6%$1.9B+106%$1.76B+117%$1.31B+50.5%
Electricity$7.71B+13.4%$7.67B+17.2%$7.84B+25.2%$7.32B+19.0%$6.8B+9.4%
Natural gas$1.17B+5.9%$1.13B+4.4%$1.12B+7.5%$1.12B+7.6%$1.11B+6.2%

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Questions, answered.

How does Ameren break its business down?
Ameren (AEE) reports revenue by business across 5 parts — Ameren Illinois Electric Distribution, Ameren Illinois Natural Gas, Ameren Illinois Transmission, Ameren Transmission and Union Electric Company. Each is extracted from the segment footnotes and tracked over time.
Where does Ameren's segment data come from?
Segment breakdowns are pulled from the segment footnotes in Ameren's SEC filings (the XBRL dimensional tags), so every line ties back to a reported figure. Switch between quarterly, annual, and TTM, or open any segment for its full history.