AMEREN CORP

NYSE:AEE

Electric & Other Services Combined·ST LOUIS, MO

Ameren Corporation is an American power company created December 31, 1997, by the merger of Union Electric Company of St. Louis, Missouri and the neighboring Central Illinois Public Service Company of Springfield, Illinois.

CEO

Lyons Martin J

Financials

20 shown

Type	Period	Ended	Filed
10-K	FY 2025	12/31/25	2/18/26	→
10-Q	Q3 2025	9/30/25	11/6/25	→
10-Q	Q2 2025	6/30/25	8/4/25	→
10-Q	Q1 2025	3/31/25	5/5/25	→
10-K	FY 2024	12/31/24	2/18/25	→
10-Q	Q3 2024	9/30/24	11/7/24	→
↓

Earnings Releases (8-K)

19 shown

Filed	Period
2/11/26	Q1 FY2026	→
11/5/25	Q4 FY2025	→
7/31/25	Q2 FY2025	→
5/1/25	Q2 FY2025	→
2/13/25	Q1 FY2025	→
11/6/24	Q4 FY2024	→
↓

News (8-K)

61 shown

Filed	Type	Description
3/4/26	Other	Other Events	→
2/27/26	Other	Other Events	→
2/9/26	Exec Change	Departure or Appointment of Directors or Certain Officers	→
12/15/25	Exec Change	Departure or Appointment of Directors or Certain Officers	→
12/10/25	Agreement	Entry into a Material Definitive Agreement	→
11/24/25	Other	Other Events	→
↓

Prospectuses & Registrations

40 shown

Filed	Form	Description
2/27/26	424B2	424B2	→
2/26/26	FWP	FWP	→
2/26/26	424B3	424B3	→
8/7/25	424B5	424B5	→
5/13/25	424B2	424B2	→
5/12/25	424B3	424B3	→
↓

Filing History(1002 filings)

TypeDateAccessionPeriodSize

Mar 6, 2026

0002093849-26-000006FORM 4

Mar 4, 2026

5.4 KB

Mar 6, 2026

0001199579-26-000004FORM 4

Mar 5, 2026

4.4 KB

8-K

Mar 4, 2026

0001104659-26-023352FORM 8-K

Mar 4, 2026

688.3 KB

Mar 3, 2026

0001641892-26-000006FORM 4

Mar 1, 2026

4.5 KB

Mar 3, 2026

0001190099-26-000004FORM 4

Feb 27, 2026

7.2 KB

Mar 3, 2026

0001878241-26-000006FORM 4

Feb 27, 2026

5.7 KB

Mar 3, 2026

0002093735-26-000006FORM 4

Feb 27, 2026

6.3 KB

Mar 3, 2026

0001190105-26-000006FORM 4

Feb 27, 2026

5.7 KB

Mar 3, 2026

0001849779-26-000006FORM 4

Feb 27, 2026

5.7 KB

Mar 3, 2026

0001305084-26-000004FORM 4

Feb 27, 2026

7.1 KB

Mar 3, 2026

0002093849-26-000004FORM 4

Feb 27, 2026

5.6 KB

Mar 3, 2026

0002093862-26-000004FORM 4

Feb 27, 2026

5.6 KB

Mar 3, 2026

0001640852-26-000004FORM 4

Feb 27, 2026

7.2 KB

Mar 3, 2026

0001936928-26-000004FORM 4

Feb 27, 2026

5.7 KB

Mar 3, 2026

0002094778-26-000004FORM 4

Feb 27, 2026

6.3 KB

144

Mar 3, 2026

0001959173-26-001754

—

4.4 KB

Mar 2, 2026

0001641892-26-000004FORM 3

Mar 1, 2026

637.3 KB

8-K

Feb 27, 2026

0001104659-26-021486FORM 8-K

Feb 27, 2026

884.1 KB

424B2

Feb 27, 2026

0001104659-26-021458424B2

—

600.1 KB

FWP

Feb 26, 2026

0001104659-26-020544FWP

—

19.1 KB

424B3

Feb 26, 2026

0001104659-26-020146424B3

—

471.8 KB

Feb 19, 2026

0001656999-26-000006FORM 4

Feb 17, 2026

4.4 KB

Feb 19, 2026

0002093735-26-000004FORM 4

Feb 17, 2026

6.1 KB

Feb 19, 2026

0001878241-26-000004FORM 4

Feb 17, 2026

5.4 KB

Feb 19, 2026

0001849779-26-000004FORM 4

Feb 17, 2026

5.5 KB

25 filings shown

Filed	Form	Description
4/28/25	DEFA14A	DEFA14A	→
3/27/25	DEFA14A	DEFA14A	→
3/25/25	DEFA14A	DEFA14A	→
3/25/25	DEF 14A	DEF 14A	→
4/5/24	DEFA14A	DEFA14A	→
3/26/24	DEFA14A	DEFA14A	→
↓

AMEREN CORP

Financials

Earnings Releases (8-K)

News (8-K)

Prospectuses & Registrations

Filing History(1002 filings)

Proxies

Ownership

Other Filings

Filed	Form	Description
3/6/26	4	4	→
3/6/26	4	4	→
3/3/26	4	4	→
3/3/26	4	4	→
3/3/26	4	4	→
3/3/26	4	4	→
↓

Filed	Form	Description
3/3/26	144	144	→
2/17/26	144	144	→
2/17/26	SCHEDULE 13G/A	SCHEDULE 13G/A	→
2/2/26	144	144	→
1/21/26	SCHEDULE 13G/A	SCHEDULE 13G/A	→
11/17/25	144	144	→
↓