FORM 4 [ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

Nwamu Chonda J
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, GC & Secretary
(Last)          (First)          (Middle)

P.O. BOX 66149
3. Date of Earliest Transaction (MM/DD/YYYY)

2/10/2022
(Street)

ST. LOUIS, MO 63166-6149
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
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. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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         277 (1)I By 401K 
Common Stock, $.01 Par Value 2/10/2022  A  8090 (2)A$0 24193 D  
Common Stock, $.01 Par Value 2/10/2022  A  3389 (3)A$0 28014 (4)D  

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security3. Trans. Date3A. Deemed Execution Date, if any4. Trans. Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
6. Date Exercisable and Expiration Date7. 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 of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount 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, 2022.
(2) Shares acquired upon vesting of previously granted performance share units.
(3) These restricted stock units were granted under the issuer's 2014 Omnibus Incentive Compensation Plan and are scheduled to vest upon the payment date in 2025, which shall be no later than March 15, 2025, subject to the terms of the Plan and the applicable award agreement issued thereunder.
(4) Amount includes 191 shares acquired through reinvested dividends during the first through fourth quarters of 2021, as well as 241 accrued dividend equivalents acquired during the first through fourth quarters of 2021 pursuant to a dividend reinvestment feature of restricted stock units granted under the Plan.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director10% OwnerOfficerOther
Nwamu Chonda J
P.O. BOX 66149
ST. LOUIS, MO 63166-6149


SVP, GC & Secretary

Signatures
Jonathan T. Shade, Asst. Secy. for Ameren Corporation, attorney-in-fact for Chonda J. Nwamu2/14/2022
**Signature of Reporting PersonDate

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