Ameren (NYSE: AEE) subsidiary SVP sells 3,548 shares at $110.90

Rhea-AI Filing Summary

Ameren Corp insider Gwendolyn G. Mizell reported an open-market sale of Ameren common stock. She sold 3,548 shares of common stock at a price of $110.90 per share. After this sale, she directly owned 7,267 shares. She also indirectly held 2,423 share equivalents through the Ameren Corporation Savings Investment Plan as of January 31, 2026.

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

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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^*

Mizell Gwendolyn G

(Last) (First) (Middle)

1901 CHOUTEAU AVE

(Street)

ST 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
	Officer (give title below)	X	Other (specify below)
			SVP & CSO of Subsidiary

3. Date of Earliest Transaction (Month/Day/Year)
02/17/2026

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								2,423(1)	I	By 401(K)
Common Stock, $.01 Par Value	02/17/2026		S		3,548	D	$110.9	7,267	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 January 31, 2026.

Remarks:

	Jonathan T. Shade, Deputy Corp. Secy. of Ameren Corporation, attorney-in-fact for Gwendolyn G. Mizell	02/19/2026
	** 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.

FAQ

What insider transaction did Ameren (AEE) report for Gwendolyn G. Mizell?

Ameren reported that insider Gwendolyn G. Mizell sold 3,548 shares of Ameren common stock in an open-market transaction at $110.90 per share. Following the sale, she held 7,267 shares directly and additional share equivalents indirectly through a company savings investment plan.

At what price were the Ameren (AEE) shares sold in Gwendolyn Mizell’s Form 4 filing?

The reported Ameren common shares were sold at $110.90 per share. This price applies to the 3,548 shares sold in the open-market transaction disclosed, providing a clear reference point for the value of the insider’s recent disposition of Ameren stock.

How many Ameren (AEE) shares does Gwendolyn G. Mizell own after the reported sale?

After the reported sale, Gwendolyn G. Mizell directly owns 7,267 Ameren common shares. In addition, she has 2,423 share equivalents held indirectly through the unitized stock fund in the Ameren Corporation Savings Investment Plan as of January 31, 2026.

What indirect Ameren (AEE) holdings does Gwendolyn Mizell report in the Form 4?

Gwendolyn Mizell reports indirect holdings of 2,423 Ameren share equivalents. These are held through a unitized stock fund in the Ameren Corporation Savings Investment Plan, with the amount described as an estimated number of share equivalents as of January 31, 2026.

What role does Gwendolyn G. Mizell hold in relation to Ameren (AEE)?

Gwendolyn G. Mizell is identified as the Senior Vice President and Chief Sustainability Officer of an Ameren subsidiary. Her status as a reporting person in the Form 4 reflects this executive role connected to Ameren’s corporate group structure.