Ameren Corp SEC filings AEE
Ameren Corp has 1,001 filings in SEC EDGAR's recent list, going back to May 7, 2015. Its latest annual report, Form ARS, was filed on Mar 31, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 3, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Sep 28, 2026 (other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 8-K |
Current report
Other events
|
Sep 28, 2026 | Sep 28, 2026 |
| 8-K |
Current report
Other events
|
Sep 18, 2026 | Sep 18, 2026 |
| 424B2 | Prospectus | Sep 9, 2026 | — |
| FWP | Free writing prospectus | Sep 8, 2026 | — |
| 305B2 | Filing | Sep 8, 2026 | — |
| 424B3 | Prospectus | Sep 8, 2026 | — |
| 8-K |
Current report
Other events
|
Aug 24, 2026 | Aug 24, 2026 |
| 8-K |
Current report
Other events
|
Aug 4, 2026 | Jul 31, 2026 |
| 424B5 | Prospectus supplement | Aug 4, 2026 | — |
| S-3ASR | Automatic shelf registration | Aug 4, 2026 | — |
| 10-Q | Quarterly report | Aug 3, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations, Other events
|
Jul 30, 2026 | Jul 30, 2026 |
| 8-K |
Current report
Other events
|
Jun 29, 2026 | Jun 29, 2026 |
| 8-K |
Current report
Other events
|
Jun 26, 2026 | Jun 26, 2026 |
| 11-K | Employee savings plan report | Jun 26, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Shareholder vote results
|
May 18, 2026 | May 14, 2026 |
| S-3ASR | Automatic shelf registration | May 15, 2026 | — |
| 10-Q | Quarterly report | May 8, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations, Other events
|
May 5, 2026 | May 5, 2026 |
| ARS | Annual report to shareholders | Mar 31, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Mar 31, 2026 | — |
| DEF 14A | Proxy statement | Mar 31, 2026 | May 14, 2026 |
| 8-K |
Current report
Other events
|
Mar 4, 2026 | Mar 4, 2026 |
| 8-K |
Current report
Other events
|
Feb 27, 2026 | Feb 27, 2026 |
| 424B2 | Prospectus | Feb 27, 2026 | — |
| FWP | Free writing prospectus | Feb 26, 2026 | — |
| 424B3 | Prospectus | Feb 26, 2026 | — |
| 10-K | Annual report | Feb 18, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations, Other events
|
Feb 11, 2026 | Feb 11, 2026 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Feb 9, 2026 | Feb 6, 2026 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Dec 15, 2025 | Dec 12, 2025 |
| 8-K |
Current report
Material agreement, New debt
|
Dec 10, 2025 | Dec 10, 2025 |
| 8-K |
Current report
Other events
|
Nov 24, 2025 | Nov 24, 2025 |
| 10-Q | Quarterly report | Nov 6, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations, Other events
|
Nov 5, 2025 | Nov 5, 2025 |
| 8-K |
Current report
Officer or director change
|
Oct 14, 2025 | Oct 14, 2025 |
| 8-K |
Current report
Officer or director change
|
Oct 3, 2025 | Oct 2, 2025 |
| 8-K |
Current report
Other events
|
Sep 26, 2025 | Sep 26, 2025 |
| 8-K |
Current report
Other events
|
Aug 7, 2025 | Aug 7, 2025 |
| 424B5 | Prospectus supplement | Aug 7, 2025 | — |
| 10-Q | Quarterly report | Aug 4, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations, Other events
|
Jul 31, 2025 | Jul 31, 2025 |
| 11-K | Employee savings plan report | Jun 25, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Material agreement, Other events
|
May 14, 2025 | May 12, 2025 |
| 424B2 | Prospectus | May 13, 2025 | — |
| 424B3 | Prospectus | May 12, 2025 | — |
| 8-K |
Current report
Shareholder vote results
|
May 12, 2025 | May 8, 2025 |
| 10-Q | Quarterly report | May 5, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations, Other events
|
May 1, 2025 | May 1, 2025 |
| PX14A6G | Filing | Apr 30, 2025 | — |
| DEFA14A | Additional proxy material | Apr 28, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Apr 28, 2025 | Apr 22, 2025 |
| 8-K |
Current report
Other events
|
Apr 4, 2025 | Apr 4, 2025 |
| DEFA14A | Additional proxy material | Mar 27, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Mar 27, 2025 | Mar 24, 2025 |
| ARS | Annual report to shareholders | Mar 25, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Mar 25, 2025 | — |
| DEF 14A | Proxy statement | Mar 25, 2025 | May 8, 2025 |
| 8-K |
Current report
Other events
|
Mar 7, 2025 | Mar 7, 2025 |
| 8-K |
Current report
Other events
|
Mar 3, 2025 | Mar 3, 2025 |
| 8-K |
Current report
Other events
|
Mar 3, 2025 | Feb 26, 2025 |
| 424B2 | Prospectus | Feb 28, 2025 | — |
| FWP | Free writing prospectus | Feb 27, 2025 | — |
| 424B3 | Prospectus | Feb 27, 2025 | — |
| 10-K | Annual report | Feb 18, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations, Other events
|
Feb 13, 2025 | Feb 13, 2025 |
| 8-K |
Current report
Officer or director change
|
Feb 3, 2025 | Jan 30, 2025 |
| 8-K |
Current report
Other events
|
Dec 20, 2024 | Dec 19, 2024 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Dec 16, 2024 | Dec 13, 2024 |
| 10-Q | Quarterly report | Nov 7, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations, Other events
|
Nov 6, 2024 | Nov 6, 2024 |
| 8-K |
Current report
Other events
|
Oct 7, 2024 | Oct 7, 2024 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Aug 9, 2024 | Aug 9, 2024 |
| 10-Q | Quarterly report | Aug 5, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations, Other events
|
Aug 1, 2024 | Aug 1, 2024 |
| 8-K |
Current report
Other events
|
Jul 1, 2024 | Jun 28, 2024 |
| 8-K |
Current report
Other events
|
Jun 27, 2024 | Jun 27, 2024 |
| 11-K | Employee savings plan report | Jun 25, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Other events
|
Jun 21, 2024 | Jun 20, 2024 |
| 8-K |
Current report
Other events
|
Jun 21, 2024 | Jun 20, 2024 |
| 8-K |
Current report
Shareholder vote results
|
May 13, 2024 | May 9, 2024 |
| 10-Q | Quarterly report | May 6, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations, Other events
|
May 2, 2024 | May 2, 2024 |
| UPLOAD | Letter from the SEC | Apr 18, 2024 | — |
| CORRESP | Letter to the SEC | Apr 10, 2024 | — |
| DEFA14A | Additional proxy material | Apr 5, 2024 | — |
| 8-K |
Current report
Other events
|
Apr 4, 2024 | Apr 4, 2024 |
| UPLOAD | Letter from the SEC | Mar 27, 2024 | — |
| ARS | Annual report to shareholders | Mar 26, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Mar 26, 2024 | — |
| DEF 14A | Proxy statement | Mar 26, 2024 | May 9, 2024 |
| 10-K | Annual report | Feb 29, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations, Other events
|
Feb 22, 2024 | Feb 22, 2024 |
| 8-K |
Current report
Other events
|
Jan 9, 2024 | Jan 9, 2024 |
| 8-K |
Current report
Other events
|
Dec 21, 2023 | Dec 21, 2023 |
| 424B2 | Prospectus | Dec 19, 2023 | — |
| FWP | Free writing prospectus | Dec 18, 2023 | — |
| 424B3 | Prospectus | Dec 18, 2023 | — |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Dec 18, 2023 | Dec 15, 2023 |
| 8-K |
Current report
Other events
|
Dec 18, 2023 | Dec 14, 2023 |
| 8-K |
Current report
Other events
|
Nov 21, 2023 | Nov 16, 2023 |
| 8-K |
Current report
Other events
|
Nov 20, 2023 | Nov 20, 2023 |
| 424B2 | Prospectus | Nov 16, 2023 | — |
| FWP | Free writing prospectus | Nov 15, 2023 | — |
| 424B3 | Prospectus | Nov 15, 2023 | — |
| 424B5 | Prospectus supplement | Nov 13, 2023 | — |
| 10-Q | Quarterly report | Nov 9, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations, Other events
|
Nov 8, 2023 | Nov 8, 2023 |
| 11-K/A | Filing | Oct 27, 2023 | Dec 31, 2017 |
| 11-K/A | Filing | Oct 27, 2023 | Dec 31, 2018 |
| 11-K/A | Filing | Oct 27, 2023 | Dec 31, 2019 |
| 11-K/A | Filing | Oct 27, 2023 | Dec 31, 2020 |
| 11-K/A | Filing | Oct 27, 2023 | Dec 31, 2021 |
| 11-K/A | Filing | Oct 23, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Officer or director change
|
Oct 17, 2023 | Oct 12, 2023 |
| S-3ASR | Automatic shelf registration | Oct 13, 2023 | — |
| 8-K |
Current report
Other events
|
Sep 26, 2023 | Sep 26, 2023 |
| 8-K |
Current report
Officer or director change
|
Aug 14, 2023 | Aug 10, 2023 |
| 10-Q | Quarterly report | Aug 3, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations, Other events
|
Aug 2, 2023 | Aug 2, 2023 |
| 11-K | Employee savings plan report | Jun 27, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Other events
|
May 31, 2023 | May 31, 2023 |
| S-3ASR | Automatic shelf registration | May 18, 2023 | — |
| 8-K |
Current report
Shareholder vote results
|
May 12, 2023 | May 11, 2023 |
| 10-Q | Quarterly report | May 5, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations, Other events
|
May 4, 2023 | May 4, 2023 |
| 8-K |
Current report
Other events
|
Apr 7, 2023 | Apr 7, 2023 |
| PX14A6G | Filing | Mar 29, 2023 | — |
| ARS | Annual report to shareholders | Mar 28, 2023 | Dec 31, 2022 |
| DEFA14A | Additional proxy material | Mar 28, 2023 | — |
| DEF 14A | Proxy statement | Mar 28, 2023 | — |
| 8-K |
Current report
Other events
|
Mar 13, 2023 | Mar 13, 2023 |
| 10-K | Annual report | Feb 22, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations, Other events
|
Feb 15, 2023 | Feb 15, 2023 |
| 8-K |
Current report
Other events
|
Jan 23, 2023 | Jan 20, 2023 |
| 8-K |
Current report
Other events
|
Jan 9, 2023 | Jan 6, 2023 |
| 8-K |
Current report
Material agreement, New debt
|
Dec 6, 2022 | Dec 6, 2022 |
| 8-K |
Current report
Other events
|
Nov 22, 2022 | Nov 22, 2022 |
| 8-K |
Current report
Other events
|
Nov 10, 2022 | Nov 8, 2022 |
| 424B5 | Prospectus supplement | Nov 10, 2022 | — |
| 10-Q | Quarterly report | Nov 4, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations, Other events
|
Nov 3, 2022 | Nov 3, 2022 |
| 8-K |
Current report
Other events
|
Aug 29, 2022 | Aug 29, 2022 |
| 10-Q | Quarterly report | Aug 8, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Results of operations, Other events
|
Aug 4, 2022 | Aug 4, 2022 |
| 11-K | Employee savings plan report | Jun 24, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Other events
|
Jun 23, 2022 | Jun 22, 2022 |
| 8-K |
Current report
Officer or director change
|
May 16, 2022 | May 13, 2022 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 13, 2022 | May 12, 2022 |
| S-8 | Employee stock plan registration | May 12, 2022 | — |
| 10-Q | Quarterly report | May 6, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Results of operations, Other events
|
May 5, 2022 | May 5, 2022 |
| 8-K |
Current report
Other events
|
Apr 1, 2022 | Apr 1, 2022 |
| DEFA14A | Additional proxy material | Mar 29, 2022 | — |
| DEF 14A | Proxy statement | Mar 29, 2022 | May 12, 2022 |
| 10-K | Annual report | Feb 23, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Results of operations, Other events
|
Feb 17, 2022 | Feb 17, 2022 |
| 424B3 | Prospectus | Jan 7, 2022 | — |
| 8-K |
Current report
Other events
|
Dec 14, 2021 | Nov 30, 2021 |
| 8-K |
Current report
Other events
|
Nov 26, 2021 | Nov 24, 2021 |
| 8-K |
Current report
Other events
|
Nov 18, 2021 | Nov 18, 2021 |
| 424B2 | Prospectus | Nov 16, 2021 | — |
| FWP | Free writing prospectus | Nov 15, 2021 | — |
| 424B3 | Prospectus | Nov 15, 2021 | — |
| 10-Q | Quarterly report | Nov 4, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Results of operations, Other events
|
Nov 3, 2021 | Nov 3, 2021 |
| 8-K |
Current report
Officer or director change, Bylaw or fiscal year change
|
Oct 12, 2021 | Oct 8, 2021 |
| 8-K |
Current report
Other events
|
Sep 13, 2021 | Sep 13, 2021 |
| 8-K |
Current report
Other events
|
Aug 25, 2021 | Aug 20, 2021 |
| 8-K |
Current report
Officer or director change
|
Aug 17, 2021 | Aug 13, 2021 |
| 10-Q | Quarterly report | Aug 6, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Results of operations, Other events
|
Aug 5, 2021 | Aug 5, 2021 |
| 8-K |
Current report
Other events
|
Jun 29, 2021 | Jun 29, 2021 |
| 11-K | Employee savings plan report | Jun 24, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Other events
|
Jun 22, 2021 | Jun 22, 2021 |
| 8-K |
Current report
Other events
|
May 12, 2021 | May 12, 2021 |
| 424B5 | Prospectus supplement | May 12, 2021 | — |
| 8-K |
Current report
Results of operations, Other events
|
May 10, 2021 | May 10, 2021 |
| 10-Q | Quarterly report | May 10, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Shareholder vote results
|
May 10, 2021 | May 6, 2021 |
| 8-K |
Current report
Other events
|
Mar 31, 2021 | Mar 31, 2021 |
| DEFA14A | Additional proxy material | Mar 23, 2021 | — |
| DEF 14A | Proxy statement | Mar 23, 2021 | May 6, 2021 |
| 8-K |
Current report
Other events
|
Mar 5, 2021 | Mar 5, 2021 |
| 424B2 | Prospectus | Feb 25, 2021 | — |
| FWP | Free writing prospectus | Feb 24, 2021 | — |
| 424B3 | Prospectus | Feb 24, 2021 | — |
| 10-K | Annual report | Feb 22, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Results of operations, Other events
|
Feb 19, 2021 | Feb 18, 2021 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Dec 14, 2020 | Dec 11, 2020 |
| 8-K |
Current report
Other events
|
Nov 23, 2020 | Nov 23, 2020 |
| 10-Q | Quarterly report | Nov 5, 2020 | Sep 30, 2020 |
| 8-K |
Current report
Results of operations, Other events
|
Nov 4, 2020 | Nov 4, 2020 |
| S-3ASR | Automatic shelf registration | Oct 14, 2020 | — |
| 8-K |
Current report
Other events
|
Oct 9, 2020 | Oct 9, 2020 |
| 8-K |
Current report
Other events
|
Sep 28, 2020 | Sep 28, 2020 |
| 8-K |
Current report
Officer or director change
|
Sep 18, 2020 | Sep 18, 2020 |
| 10-Q | Quarterly report | Aug 7, 2020 | Jun 30, 2020 |
| 8-K |
Current report
Results of operations, Other events
|
Aug 6, 2020 | Aug 6, 2020 |
| 11-K | Employee savings plan report | Jun 25, 2020 | Dec 31, 2019 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Electric & Other Services Combined (SIC 4931)
- Listed as
- AEE (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- MO
- Headquarters
- St Louis, MO
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1002910
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.