AMEREN CORP (AEE) · Insider Trading (Form 4) SEC Filing

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-05-01 10b5-1 Pre-arranged Plan: Yes --- Issuer --- Name: AMEREN CORP (AEE) CIK: 0001002910 --- Reporting Owner --- Name: MOEHN MICHAEL L CIK: 0001190105 Role: Officer (Group President, Utilities) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock, $.01 Par Value Date: 2026-05-01 | Code: S (Open market sale) Shares: -6,500 | Price: $113.63 Total Value: $738,595.00 Shares Owned After: 205,598 | Ownership: D (Direct) Footnotes: [F2] Shares sold pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. [F3] Amount includes 573 accrued dividend equivalents acquired during the first quarter of 2026 pursuant to a dividend reinvestment feature of restricted stock units granted under the issuer's 2022 Omnibus Incentive Compensation Plan. --- Holdings --- [Holding #1] Security: Common Stock, $.01 Par Value Ownership: I (Indirect) Footnotes: [F1] Represents the estimated number of share equivalents held by the reporting person in the unitized stock fund included in the Ameren Corporation Savings Investment Plan as of April 30, 2026. --- Footnotes (Complete Index) --- F1: Represents the estimated number of share equivalents held by the reporting person in the unitized stock fund included in the Ameren Corporation Savings Investment Plan as of April 30, 2026. F2: Shares sold pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. F3: Amount includes 573 accrued dividend equivalents acquired during the first quarter of 2026 pursuant to a dividend reinvestment feature of restricted stock units granted under the issuer's 2022 Omnibus Incentive Compensation Plan. --- Signature --- /s/ Jonathan T. Shade, Deputy Corp. Secy. of Ameren Corporation, attorney-in-fact for Michael L. Moehn (2026-05-05)