FORM 5 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Form 3 Holdings Reported Form 4 Transactions Reported

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ANNUAL STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * MUELLER MICHAEL G 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) President of Subsidiary (Last) (First) (Middle) P. O. BOX 66149 3. Statement for Issuer's Fiscal Year Ended (Month/Day/Year) 12/31/2007 (Street) ST. LOUIS, MO 63166-6149 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Reporting (check applicable line) _X_ Form Filed by One Reporting Person ___ Form Filed by More than One Reporting Person (City) (State) (Zip) 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 at end of Issuer's Fiscal Year (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Amount (A) or (D) Price Common Stock, $.01 Par Value             75 (1) I By 401K Common Stock, $.01 Par Value             2 (2) I By ESOP Common Stock, $.01 Par Value             57 (3) I Custodian for Daughter #1 Common Stock, $.01 Par Value             67 (4) I Custodian for Daughter #2 Common Stock, $.01 Par Value             48 (5) I Custodian for Son Common Stock, $.01 Par Value             8,427 (6) D Â

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SEC 2270 (9-02)

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 Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned at End of Issuer's Fiscal Year (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
MUELLER MICHAEL G P. O. BOX 66149 ST. LOUIS, MO 63166-6149	Â	Â	Â	President of Subsidiary

Signatures

G. L. Waters, Asst. Secy. for Michael G. Mueller		02/12/2008
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Amount reflects intra-fund transfer of share equivalents within 401K account. As a result of the transfer, the amount of shares was reduced from 891 shares to 75 shares.
(2)	Amount reflects intra-fund transfer of share equivalents within Savings Investment Account. As a result of the transfer, the amount of ESOP shares was reduced from 82 to 2 shares.
(3)	Amount includes a total of 3 shares acquired during the first through fourth quarters of 2007 through reinvested dividends at prices ranging from $48.92 to $54.35 per share.
(4)	Amount includes a total of 3 shares acquired during the first through fourth quarters of 2007 through reinvested dividends at prices ranging from $48.92 to $54.35 per share.
(5)	Amount includes a total of 3 shares acquired during the first through fourth quarters of 2007 through reinvested dividends at prices ranging from $48.92 to $54.35 per share.
(6)	Amount includes a total of 404 shares acquired during the first through fourth quarters of 2007 through reinvested dividends at prices ranging from $48.92 to $54.35 per share.

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