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 |
|---|---|---|---|
| 424B2 | Prospectus | Sep 9, 2026 | — |
| FWP | Free writing prospectus | Sep 8, 2026 | — |
| 424B3 | Prospectus | Sep 8, 2026 | — |
| 424B5 | Prospectus supplement | Aug 4, 2026 | — |
| S-3ASR | Automatic shelf registration | Aug 4, 2026 | — |
| S-3ASR | Automatic shelf registration | May 15, 2026 | — |
| 424B2 | Prospectus | Feb 27, 2026 | — |
| FWP | Free writing prospectus | Feb 26, 2026 | — |
| 424B3 | Prospectus | Feb 26, 2026 | — |
| 424B5 | Prospectus supplement | Aug 7, 2025 | — |
| 424B2 | Prospectus | May 13, 2025 | — |
| 424B3 | Prospectus | May 12, 2025 | — |
| 424B2 | Prospectus | Feb 28, 2025 | — |
| FWP | Free writing prospectus | Feb 27, 2025 | — |
| 424B3 | Prospectus | Feb 27, 2025 | — |
| 424B2 | Prospectus | Dec 19, 2023 | — |
| FWP | Free writing prospectus | Dec 18, 2023 | — |
| 424B3 | Prospectus | Dec 18, 2023 | — |
| 424B2 | Prospectus | Nov 16, 2023 | — |
| FWP | Free writing prospectus | Nov 15, 2023 | — |
| 424B3 | Prospectus | Nov 15, 2023 | — |
| 424B5 | Prospectus supplement | Nov 13, 2023 | — |
| S-3ASR | Automatic shelf registration | Oct 13, 2023 | — |
| S-3ASR | Automatic shelf registration | May 18, 2023 | — |
| 424B5 | Prospectus supplement | Nov 10, 2022 | — |
| S-8 | Employee stock plan registration | May 12, 2022 | — |
| 424B3 | Prospectus | Jan 7, 2022 | — |
| 424B2 | Prospectus | Nov 16, 2021 | — |
| FWP | Free writing prospectus | Nov 15, 2021 | — |
| 424B3 | Prospectus | Nov 15, 2021 | — |
| 424B5 | Prospectus supplement | May 12, 2021 | — |
| 424B2 | Prospectus | Feb 25, 2021 | — |
| FWP | Free writing prospectus | Feb 24, 2021 | — |
| 424B3 | Prospectus | Feb 24, 2021 | — |
| S-3ASR | Automatic shelf registration | Oct 14, 2020 | — |
| S-3ASR | Automatic shelf registration | May 21, 2020 | — |
| 424B2 | Prospectus | Apr 1, 2020 | — |
| FWP | Free writing prospectus | Mar 31, 2020 | — |
| 424B3 | Prospectus | Mar 31, 2020 | — |
| 424B2 | Prospectus | Sep 12, 2019 | — |
| FWP | Free writing prospectus | Sep 11, 2019 | — |
| 424B3 | Prospectus | Sep 11, 2019 | — |
| 424B2 | Prospectus | Aug 6, 2019 | — |
| 424B3 | Prospectus | Aug 5, 2019 | — |
| S-8 | Employee stock plan registration | Oct 26, 2018 | — |
| S-3ASR | Automatic shelf registration | Dec 15, 2017 | — |
| S-3ASR | Automatic shelf registration | May 26, 2017 | — |
| 424B2 | Prospectus | Nov 18, 2015 | — |
| FWP | Free writing prospectus | Nov 17, 2015 | — |
| 424B3 | Prospectus | Nov 17, 2015 | — |
| S-3ASR | Automatic shelf registration | Jun 22, 2015 | — |
Showing 51 filings. 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.