| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Singh Leonard P | EVP & CFO | 1901 CHOUTEAU AVENUE, MC 1310, P.O. BOX 66149, ST LOUIS | Jonathan T. Shade, Deputy Corp. Secy. of Ameren Corporation, attorney-in-fact for Leonard P. Singh | 03 Mar 2026 | 0001936928 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | AEE | Common Stock, $.01 Par Value | Tax liability | $620,548 | -5,478 | -14% | $113.28 | 32,776 | 27 Feb 2026 | Direct | F2 |
| holding | AEE | Common Stock, $.01 Par Value | 94 | 27 Feb 2026 | By 401(k) | F1 |
| Id | Content |
|---|---|
| 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 February 28, 2026. |
| F2 | Shares withheld by the issuer to satisfy tax withholding obligations arising in connection with the vesting of performance share units and restricted stock units. |