Ameren (AEE)Insider sold ~$353K

~$353K

Approx. value · 3,500 sh @ $100.89

43K

Holds after · shares reported

Traded

Sep 12, 2025

Filed

Sep 15, 2025

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. Aug 1, 2025InsiderCFO sold ~$667K of AEE shares in the open market
2. Aug 22, 2025InsiderInsider sold ~$102K of AEE shares in the open market
3. Sep 3, 2025InsiderInsider sold ~$149K of AEE shares in the open market
4. Sep 12, 2025 · this disclosureInsiderInsider sold ~$353K of AEE shares in the open market

What came next

1. Sep 25, 2025CongressDisclosed sale of AEE — reported range $1,001 - $15,000
2. Oct 2, 2025Company filing · Form 8-K · Executive changeChanged a top executive or board member“On and effective October 2, 2025 (the "Effective Date"), Mark C. Birk informed Ameren Corporation (the "Company") of his decision to retire from his position as Chairman and President of Union Electric Company, doing business as Ameren Missouri ("Ameren Missouri"), and from each other position he holds with subsidiaries of the Company.”
3. Oct 14, 2025Company filing · Form 8-K · Executive changeChanged a top executive or board member“On October 14, 2025, Ameren Corporation (the "Company") announced that Michael L. Moehn, Senior Executive Vice President and Chief Financial Officer of the Company, has been elected to the position of Group President, Ameren Utilities, of the Company, effective January 1, 2026.”
4. Nov 3, 2025InsiderCFO sold ~$659K of AEE shares in the open market
5. Nov 5, 2025Company filing · Form 8-K · Results, Other newsReported its results, and reported other company news
6. Nov 10, 20255% stakeSTATE STREET CORPORATION reported a passive stake (13G) of 5.2%
7. Nov 14, 2025Insider · 3 peopleInsiders: 3 sales (~$548K)
8. Nov 17, 2025InsiderDirector sold ~$66K of AEE shares in the open market
9. Dec 2, 2025Federal contract · $60K obligatedDepartment of Justice awarded Ameren: $60K obligated to date
10. Dec 10, 2025Company filing · Form 8-K · Material agreement, New debtSigned an important agreement, and took on new debt or obligations
11. Dec 12, 2025Company filing · Form 8-K · Executive change, Reg FDChanged a top executive or board member, and shared information with investors“On December 12, 2025, the Board of Directors (the "Board") of Ameren Corporation ("Ameren") elected Jamie L. Engstrom to the Board, with a term beginning on January 1, 2026, and expiring at Ameren's Annual Meeting of Shareholders in 2026.”

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 Lindgren Mark C, Reporting person

• SEC Form 4 at Ameren (AEE)Mar 3, 2026
• SEC Form 4 at Ameren (AEE)Mar 5, 2025

The full history of Lindgren Mark C, Reporting person 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.