[Form 4] AMEREN CORP Insider Trading Activity

Rhea-AI Filing Summary

Ameren Corporation reported that officer David M. Feinberg, EVP, General Counsel and Secretary, acquired 3,784 shares of common stock on 11/13/2025 through a grant of restricted stock units under the company’s 2022 Omnibus Incentive Compensation Plan. The award was recorded at a price of $0, reflecting that it is an equity incentive grant rather than a market purchase. Following this grant, Feinberg beneficially owns 3,784 shares directly. The filing notes that these restricted stock units will vest in two equal installments, with 50% vesting on February 28, 2027 and 50% vesting on February 29, 2028, subject to the terms of the plan and the applicable award agreement.

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^*

Feinberg David Matthew

(Last) (First) (Middle)

1901 CHOUTEAU AVENUE

(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
X	Officer (give title below)		Other (specify below)
	EVP, GC & Secretary

3. Date of Earliest Transaction (Month/Day/Year)
11/13/2025

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	11/13/2025		A		3,784	A	$0	3,784(1)	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 restricted stock units granted under the issuer's 2022 Omnibus Incentive Compensation Plan (the "Plan"), 50% of which will vest on February 28, 2027, and 50% of which will vest on February 29, 2028, in each case, subject to the terms of the Plan and the applicable award agreement issued thereunder.

Remarks:

	Jonathan T. Shade, Deputy Corp. Secy. for Ameren Corporation, attorney-in-fact for David M. Feinberg	11/17/2025
	** 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 did Ameren (AEE) report in this Form 4 filing?

Ameren reported that officer David M. Feinberg, EVP, General Counsel and Secretary, received a grant of 3,784 restricted stock units of Ameren common stock on 11/13/2025 under the company’s 2022 Omnibus Incentive Compensation Plan.

How many Ameren (AEE) shares were involved in the reported transaction?

The transaction involved 3,784 restricted stock units tied to Ameren common stock, with the filing showing 3,784 shares beneficially owned directly by David M. Feinberg following the transaction.

What is the vesting schedule for the 3,784 Ameren restricted stock units?

According to the filing, 50% of the restricted stock units will vest on February 28, 2027, and the remaining 50% will vest on February 29, 2028, subject to the terms of the 2022 Omnibus Incentive Compensation Plan and the applicable award agreement.

At what price were the Ameren (AEE) restricted stock units granted?

The Form 4 shows the price as $0, indicating that the 3,784 restricted stock units were issued as an equity incentive grant rather than purchased in the open market.

What is David M. Feinberg’s relationship to Ameren Corporation?

The filing identifies David M. Feinberg as an officer of Ameren Corporation, serving as EVP, General Counsel & Secretary, and reports that he holds the granted shares in direct ownership form.

Under which plan were the Ameren (AEE) restricted stock units granted?

The 3,784 restricted stock units were granted under Ameren’s 2022 Omnibus Incentive Compensation Plan, as described in the explanation of responses section of the Form 4.