AMEREN CORP — Director's Dealing 2026

Feb 10, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMEREN CORP (AEE)
CIK: 0001002910
Period of Report: 2026-02-05

Reporting Person: Seidler Eric V (SVP of Subsidiary)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-05	Common Stock, $.01 Par Value	A	1066	—	Acquired	12601	Direct
2026-02-05	Common Stock, $.01 Par Value	A	2364	—	Acquired	15023	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, $.01 Par Value	1789	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 January 31, 2026.

F2: These restricted stock units were granted under the issuer's 2022 Omnibus Incentive Compensation Plan (the "Plan") and are scheduled to vest upon the payment date in 2029, which shall be no later than March 15, 2029, subject to the terms of the Plan and the applicable award agreement issued thereunder.

F3: Shares acquired upon vesting of previously-granted performance share units.

F4: Amount includes 17 shares acquired during the fourth quarter of 2025 through reinvested dividends, as well as 41 accrued dividend equivalents acquired during the fourth quarter of 2025 pursuant to a dividend reinvestment feature of restricted stock units granted under the Plan.