Ameren (AEE)CEO sold ~$3M

~$3M

Approx. value · 27K sh @ $111.84

283K

Holds after · shares reported

Traded

Mar 3, 2026

Filed

Mar 3, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Oct 10, 2025Federal contract · $466K obligatedDepartment of Defense awarded Ameren: $466K obligated to date
2. Nov 17, 2025InsiderDirector sold ~$66K of AEE shares in the open market
3. Dec 2, 2025Federal contract · $60K obligatedDepartment of Justice awarded Ameren: $60K obligated to date
4. Jan 21, 20265% stakeBlackRock, Inc. reported a passive stake (13G) of 8.1%
5. Jan 23, 2026Federal contract · $52K obligatedDepartment of Justice awarded Ameren: $52K obligated to date
6. Feb 2, 2026InsiderOfficer sold ~$673K of AEE shares in the open market
7. Feb 6, 2026Company filing · Form 8-K · Executive change, Reg FDChanged a top executive or board member, and shared information with investors“On February 6, 2026, the Board of Directors (the "Board") of Ameren Corporation ("Ameren") elected Timothy S. Rausch to the Board, with a term beginning on March 1, 2026, and expiring at Ameren's Annual Meeting of Shareholders in 2026.”
8. Feb 10, 2026Federal contract · $91K obligatedDepartment of Veterans Affairs awarded Ameren: $91K obligated to date
9. Feb 11, 2026Company filing · Form 8-K · Results, Other newsReported its results, and reported other company news
10. Feb 17, 20265% stakeT. Rowe Price Associates, Inc. reported a passive stake (13G) of 8.1%
11. Feb 17, 2026Insider · 4 peopleInsiders: 4 sales (~$943K)
12. Mar 3, 2026 · this disclosureInsider · Their largest sale since 2017CEO sold ~$3M of AEE shares in the open market

What came next

1. Mar 3, 2026Insider · 2 peopleInsiders: 2 sales (~$788K)
2. Mar 4, 2026InsiderOfficer sold ~$147K of AEE shares in the open market
3. Mar 10, 2026Federal contract · $24K obligatedDepartment of Justice awarded Ameren: $24K obligated to date
4. Mar 26, 20265% stakeThe Vanguard Group reported a passive stake (13G)
5. Apr 28, 20265% stakeVanguard Portfolio Management reported a passive stake (13G) of 5.7%
6. Apr 29, 20265% stakeVanguard Capital Management reported a passive stake (13G) of 7.5%
7. May 1, 2026InsiderOfficer sold ~$739K of AEE shares in the open market
8. May 5, 2026Company filing · Form 8-K · Results, Other newsReported its results, and reported other company news
9. May 12, 2026InsiderOfficer sold ~$164K of AEE shares in the open market
10. May 14, 2026InsiderOfficer sold ~$35K of AEE shares in the open market
11. May 15, 20265% stakeT. Rowe Price Investment Management, Inc. reported a passive stake (13G) of 2.7%
12. Jun 8, 2026Federal contract · $100K obligatedDepartment of Justice awarded Ameren: $100K obligated to date

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Ameren

For Ameren, OQRO holds 5 insider filings (SEC Form 4 or Form 144), 2 Congress trade reports, 12 fund holdings reports (13F) and 4 federal contract awards dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its AEE page.

Other recent filings by Martin J Lyons, Chairman, President & CEO

• SEC Form 4 at Ameren (AEE)Mar 5, 2025

The full history of Martin J Lyons, Chairman, President & CEO is on the profile page.

How this filing works

• SEC Form 4
• Open-market purchase
• Rule 10b5-1 trading plans

Other disclosures at Ameren

• USAspending.gov award recordOct 1, 2026
• USAspending.gov award recordSep 17, 2026
• SEC Form 4Sep 14, 2026
• USAspending.gov award recordSep 9, 2026
• SEC Form 4Aug 20, 2026
• SEC Form 4Aug 20, 2026

Everything OQRO holds on this company is on its AEE page.