Ameren exec Patrick Smith awarded stock units

Ameren Corporation officer Patrick E. Smith, Chairman & President of a subsidiary, reported stock awards dated February 5, 2026.

Rhea-AI Filing Summary

Ameren Corporation officer Patrick E. Smith, Chairman & President of a subsidiary, reported stock awards dated February 5, 2026. He acquired 3,663 restricted stock units under Ameren’s 2022 Omnibus Incentive Compensation Plan, scheduled to vest on a payment date in 2029, no later than March 15, 2029. He also acquired 2,178 common shares upon vesting of previously granted performance share units, with the amount including 24 dividend-equivalent shares from the fourth quarter of 2025. Following these acquisitions, Smith held 20,822 Ameren common shares directly, plus indirect beneficial holdings of 3,045 share equivalents in a 401(k) plan and 1,090 shares held by his spouse.

Insider Trade Summary

Grant/Award: 5,841 shares

Grant/Award 4 txns

Insider Smith Patrick E

Role Chairman & President of Sub

Type	Security	Shares	Price	Value
Grant/Award	Common Stock, $.01 Par Value	3,663	$0.00	$0.00
Grant/Award	Common Stock, $.01 Par Value	2,178	$0.00	$0.00
holding	Common Stock, $.01 Par Value	--	--	--
holding	Common Stock, $.01 Par Value	--	--	--

Holdings After Transaction: Common Stock, $.01 Par Value — 20,822 shares (Direct); Common Stock, $.01 Par Value — 3,045 shares (Indirect, By 401(k)); Common Stock, $.01 Par Value — 1,090 shares (Indirect, By spouse)

Footnotes (4)

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 January 31, 2026.
2. F2. These restricted stock units were granted under the issuer's 2022 Omnibus Incentive Compensation Plan (the "Plan") and are scheduled to vest upon the payment date in 2029, which shall be no later than March 15, 2029, subject to the terms of the Plan and the applicable award agreement issued thereunder.
3. F3. Shares acquired upon vesting of previously-granted performance share units.
4. F4. Amount includes 24 accrued dividend equivalents acquired during the fourth quarter of 2025 pursuant to a dividend reinvestment feature of restricted stock units granted under the Plan.

FAQ

What insider transactions did Ameren (AEE) executive Patrick E. Smith report?

Patrick E. Smith reported acquiring 3,663 restricted stock units and 2,178 Ameren common shares on February 5, 2026. The shares came from new RSU grants and vesting of previously granted performance share units under Ameren’s 2022 Omnibus Incentive Compensation Plan.

How many Ameren (AEE) shares does Patrick E. Smith own after this Form 4?

After the reported transactions, Patrick E. Smith held 20,822 Ameren common shares directly. He also had 3,045 share equivalents in a 401(k) stock fund and 1,090 shares beneficially owned through his spouse, increasing his overall economic exposure to Ameren stock.

What are the terms of Patrick E. Smith’s new Ameren restricted stock units?

Smith received 3,663 restricted stock units under Ameren’s 2022 Omnibus Incentive Compensation Plan. These RSUs are scheduled to vest on a payment date in 2029, which will occur no later than March 15, 2029, subject to the plan and award agreement terms.

How did Patrick E. Smith acquire the additional 2,178 Ameren (AEE) shares?

The additional 2,178 Ameren common shares were acquired upon vesting of previously granted performance share units. The reported total includes 24 dividend-equivalent shares accrued during the fourth quarter of 2025 through a dividend reinvestment feature tied to restricted stock units.

Does Patrick E. Smith hold Ameren (AEE) shares indirectly through benefit plans or family?

Yes. The filing shows 3,045 estimated Ameren share equivalents held in a unitized stock fund within the Ameren Corporation Savings Investment Plan and 1,090 shares held by his spouse. Both positions are reported as indirect beneficial ownership interests in Ameren stock.

What role does Patrick E. Smith hold at Ameren related to this Form 4 filing?

Patrick E. Smith is identified as an officer of Ameren, serving as Chairman and President of a subsidiary. His status as a senior executive triggers ongoing reporting obligations for changes in his beneficial ownership of Ameren common stock under Section 16 of the Exchange Act.

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Accepted by SEC EDGAR 02/09/2026 - 08:42 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^*

Smith Patrick E

(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)
	Chairman & President of Sub

3. Date of Earliest Transaction (Month/Day/Year)
02/05/2026

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								3,045(1)	I	By 401(k)
Common Stock, $.01 Par Value								1,090	I	By spouse
Common Stock, $.01 Par Value	02/05/2026		A		3,663(2)	A	$0	18,620	D
Common Stock, $.01 Par Value	02/05/2026		A		2,178(3)	A	$0	20,822(4)	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.

2. These restricted stock units were granted under the issuer's 2022 Omnibus Incentive Compensation Plan (the "Plan") and are scheduled to vest upon the payment date in 2029, which shall be no later than March 15, 2029, subject to the terms of the Plan and the applicable award agreement issued thereunder.

3. Shares acquired upon vesting of previously-granted performance share units.

4. Amount includes 24 accrued dividend equivalents acquired during the fourth quarter of 2025 pursuant to a dividend reinvestment feature of restricted stock units granted under the Plan.

Remarks:

	Jonathan T. Shade, Deputy Corp. Secy. for Ameren Corporation, attorney-in-fact for Patrick E. Smith	02/09/2026
	** 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.