Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

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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).

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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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Filed By
Romeo and Dye's
Section 16 Filer
www.section16.net

1. Name and Address of Reporting Person*

Montana, Michael J.

2. Issuer Name and Ticker or Trading Symbol
Ameren Corporation AEE

6. Relationship of Reporting Person(s)
to Issuer (Check all applicable)
    Director                                       10% Owner
    Officer (give title below)      X Other (specify below)

Vice President of Subsidiary                      

(Last)      (First)     (Middle)

P. O. Box 66149
 

3. I.R.S. Identification Number
of Reporting Person,
if an entity (voluntary)

 

4. Statement for
Month/Day/Year
03/17/03

(Street)

St. Louis, MO 63166-6149

5. If Amendment,
Date of Original
(Month/Day/Year)
03/10/03		 7. Individual or Joint/Group Filing (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. Trans-
action
Date
(Month/ Day/
Year)

2A. Deemed
Execution
Date,
if any
(Month/Day/
Year)

3. Trans-
action Code
(Instr. 8)

4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 & 5)

5. Amount of
Securities
Beneficially
Owned Follow-
ing Reported Transactions(s)
(Instr. 3 & 4)

6. Owner-
ship 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

 

 

 

 

 

 

 

120

D

 

Common Stock, $.01 Par Value

 

 

 

 

 

 

 

2,517

I

By 401(k)

Common Stock, $.01 Par Value

03/07/03

 

D

 

982(1)

D

$39.1123

 

D

 

Common Stock, $.01 Par Value

03/07/03

 

D

 

280(2)(7)

D

$39.1123

 

D

 

Common Stock, $.01 Par Value

03/07/03

 

D

 

496

 

$39.1123

496(3)(7)

D

 

Common Stock, $.01 Par Value

03/07/03

 

D

 

916(4)

D

$39.1123

 

D

 

Common Stock, $.01 Par Value

03/07/03

 

D

 

316(5)(7)

D

$39.1123

 

D

 

Common Stock, $.01 Par Value

03/07/03

 

D

 

601

 

$39.1123

601(6)(7)

D

 
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).

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FORM 4 (continued)

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. Conver-
sion or
Exercise
Price of Derivative Security

3. Trans-
action Date

(Month/
Day/
Year)

3A. Deemed
Execution
Date,
if any
(Month/
Day/
Year)

4. Trans-
action
Code

(Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D)

(Instr. 3, 4 & 5)

6. Date Exercisable
and Expiration
Date
(Month/Day/
Year)

7. Title and Amount of Underlying Securities
(Instr. 3 & 4)

8. Price of Derivative Security
(Instr. 5)

9. Number of
Derivative
Securities
Beneficially
Owned
Following
Reported Transaction(s)
(Instr. 4)

10. Owner-
ship Form
of Deriv-
ative
Security:
Direct (D)
or Indirect (I)
(Instr. 4)

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

Code

V

(A)

(D)

Date Exer-cisable

Expira-
tion
Date

Title

Amount or Number of
Shares

Stock Option

 

 

 

 

 

 

 

 

 

Common Stock $.01 Par Value

 

 

25,175

D

 

Explanation of Responses:

(1) That portion of restricted stock granted in 2001 which was forfeited due to acceptance of a voluntary retirement program.
(2) That portion of restricted stock granted in 2001 which was placed in an Ameren account and liquidated to cover Mr. Montana's tax liability.
(3) 2001 restricted stock released to Mr. Montana due to voluntary retirement program.
(4) That portion of restricted stock granted in 2002 which was forfeited due to acceptance of a voluntary retirement program.
(5) That portion of restricted stock granted in 2002 which was placed in an Ameren account and liquidated to cover Mr. Montana's tax liability.
(6) 2002 restricted stock released to Mr. Montana due to voluntary retirement program.
(7) Due to the cap on social security taxes, fewer shares than previously reported were required for liquidation to cover Mr. Montana's tax liability. The difference was released to Mr. Montana.
  By: /s/ G. L. Waters
             G. L. Waters, Asst. Secy. for Michael J. Montana
**Signature of Reporting Person		 03/17/03
Date

**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.
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