Ameren executive reports tax share withholding

Ameren Corp Group President, Utilities Michael L. Moehn reported a tax-related share disposition.

Rhea-AI Filing Summary

Ameren Corp Group President, Utilities Michael L. Moehn reported a tax-related share disposition. On February 27, 2026, 14,355 shares of Ameren common stock were withheld by the company at $113.28 per share to cover tax obligations tied to vesting performance share units and restricted stock units.

After this withholding, Moehn directly owned 211,525 common shares. A separate footnote shows an additional 5,233 share equivalents held indirectly through the Ameren Corporation Savings Investment Plan as of February 28, 2026. The filing characterizes the disposition as a payment of tax liability using shares rather than an open-market sale.

Insider Trade Summary

Exercise Price or Tax Liability: 14,355 shares

Exercise Price or Tax Liability 2 txns

Insider MOEHN MICHAEL L

Role Group President, Utilities

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock, $.01 Par Value	14,355	$113.28	$1.63M
holding	Common Stock, $.01 Par Value	--	--	--

Holdings After Transaction: Common Stock, $.01 Par Value — 211,525 shares (Direct); Common Stock, $.01 Par Value — 5,233 shares (Indirect, By 401(K))

Footnotes (2)

1. 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.
2. 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.

FAQ

What insider transaction did Ameren (AEE) report for Michael L. Moehn?

Ameren reported that Michael L. Moehn had 14,355 common shares withheld to cover tax obligations. The shares were valued at $113.28 each and related to the vesting of performance share units and restricted stock units, rather than an open-market sale.

Was the Ameren (AEE) insider transaction a tax withholding or an open-market sale?

The transaction was a tax withholding, not an open-market sale. Shares were withheld by Ameren to satisfy tax obligations arising from the vesting of performance share units and restricted stock units, as described in the footnote to the filing.

How many Ameren (AEE) shares were withheld from Michael L. Moehn for taxes?

A total of 14,355 Ameren common shares were withheld to cover tax liabilities. The withholding price was $113.28 per share and was connected to the vesting of equity awards, according to the Form 4 disclosure and its accompanying footnote.

What are Michael L. Moehn’s Ameren (AEE) direct share holdings after the transaction?

Following the tax-withholding disposition, Michael L. Moehn directly owned 211,525 Ameren common shares. This figure reflects his holdings after 14,355 shares were withheld by the company to satisfy tax obligations on vested performance and restricted stock units.

Does Michael L. Moehn hold Ameren (AEE) shares through a retirement or savings plan?

Yes. The filing notes 5,233 share equivalents held indirectly through a unitized stock fund in the Ameren Corporation Savings Investment Plan. This amount represents estimated share equivalents as of February 28, 2026, separate from his directly held common shares.

What role does Michael L. Moehn hold at Ameren (AEE) in this Form 4 filing?

Michael L. Moehn is identified as Group President, Utilities at Ameren. The Form 4 reflects his equity-related activity, including tax-withholding share dispositions and indirect holdings through the Ameren Corporation Savings Investment Plan as detailed in the footnotes.

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Accepted by SEC EDGAR 03/03/2026 - 04:46 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

MOEHN MICHAEL L

(Last) (First) (Middle)

P.O. BOX 66149

(Street)

ST. LOUIS MO 63166-6149

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
AMEREN CORP [ AEE ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Group President, Utilities

3. Date of Earliest Transaction (Month/Day/Year)
02/27/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock, $.01 Par Value								5,233(1)	I	By 401(K)
Common Stock, $.01 Par Value	02/27/2026		F		14,355	D	$113.28	211,525(2)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. 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.

2. Shares withheld by the issuer to satisfy tax withholding obligations arising in connection with the vesting of performance share units and restricted stock units.

Remarks:

	Jonathan T. Shade, Deputy Corp. Secy. of Ameren Corporation, attorney-in-fact for Michael L. Moehn	03/03/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.