Ameren (NYSE: AEE) SVP reports 1,035-share tax-withholding disposition

Rhea-AI Filing Summary

Ameren Corp senior vice president of a subsidiary, Ajay K. Arora, reported a tax-related share disposition. On February 27, 2026, 1,035 common shares were withheld by the issuer at $113.28 per share to satisfy tax withholding obligations tied to vesting equity awards, leaving 15,499 directly owned shares.

He also reports indirect holdings of 1,717 share equivalents in the Ameren Corporation Savings Investment Plan as of February 28, 2026, and 21,037 shares held through a family trust.

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

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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^*

Arora Ajay K

(Last) (First) (Middle)

1901 CHOUTEAU AVENUE

(Street)

SAINT LOUIS MO 63103

(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)
	SVP of Subsidiary

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								1,717(1)	I	By 401(k)
Common Stock, $.01 Par Value								21,037	I	By family trust
Common Stock, $.01 Par Value	02/27/2026		F		1,035	D	$113.28	15,499(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. for Ameren Corporation, attorney-in-fact for Ajay K. Arora	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).
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FAQ

What insider transaction did Ameren (AEE) report for Ajay K. Arora?

Ameren reported a tax-withholding disposition for Ajay K. Arora. On February 27, 2026, 1,035 common shares were withheld by the issuer to cover tax obligations from vesting performance share and restricted stock units at $113.28 per share.

How many Ameren (AEE) shares does Ajay K. Arora own directly after this Form 4?

After the February 27, 2026 tax-withholding transaction, Ajay K. Arora directly owns 15,499 Ameren common shares. These are separate from his indirect holdings through the Ameren Corporation Savings Investment Plan and a family trust reported in the same filing.

Was the Ameren (AEE) Form 4 transaction an open-market sale?

The Form 4 describes a tax-withholding disposition, not an open-market sale. Shares were withheld by Ameren to satisfy Arora’s tax liabilities triggered by vesting performance share units and restricted stock units, according to the footnote explaining the F transaction code.

What indirect Ameren (AEE) holdings does Ajay K. Arora report?

Arora reports 1,717 share equivalents held through the Ameren Corporation Savings Investment Plan as of February 28, 2026, and 21,037 shares held indirectly through a family trust. These indirect positions are in addition to his directly owned 15,499 Ameren common shares.

What does the F transaction code mean in the Ameren (AEE) Form 4?

The F code in this Form 4 indicates shares used to pay taxes or exercise costs. Specifically, 1,035 Ameren shares were withheld by the issuer to satisfy Arora’s tax withholding obligations upon vesting of performance share and restricted stock units.

Who is the Ameren (AEE) insider involved in this Form 4 filing?

The insider is Ajay K. Arora, a senior vice president of an Ameren subsidiary. He reported a tax-withholding share disposition and disclosed his remaining direct and indirect ownership positions in Ameren common stock and plan-related share equivalents.