MARK C. BIRK - 28 Feb 2025 Form 4 Insider Report for AMEREN CORP (AEE)

Role: Chmn & President of Subsidiary
Signature: Jonathan T. Shade, Deputy Corp. Secy. for Ameren Corporation, attorney-in-fact for Mark C. Birk
Issuer symbol: AEE
Transactions as of: 28 Feb 2025
Net transactions value: -$510,847
Form type: 4
Filing time: 04 Mar 2025, 20:11:06 UTC
Previous filing: 10 Feb 2025
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AEE	Common Stock, $.01 Par Value	Tax liability	$510,847	-5,030	-4.5%	$101.56	107,803	28 Feb 2025	Direct	F2
transaction	AEE	Common Stock, $.01 Par Value	Gift	$0	+536	+0.5%	$0.000000	108,339	04 Mar 2025	Direct	F3
holding	AEE	Common Stock, $.01 Par Value						1,557	28 Feb 2025	By 401(K)	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

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, 2025.
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.
F3	Shares acquired as beneficiary upon liquidation of parents' family trust.