XNYS:AEE Ameren Corp Insider Activity 4 Filing - 1/17/2012

Effective Date 1/17/2012

XNYS:AEE (Ameren Corp): Fair Value Estimate
Premium
XNYS:AEE (Ameren Corp): Consider Buying
Premium
XNYS:AEE (Ameren Corp): Consider Selling
Premium
XNYS:AEE (Ameren Corp): Fair Value Uncertainty
Premium
XNYS:AEE (Ameren Corp): Economic Moat
Premium
XNYS:AEE (Ameren Corp): Stewardship
Premium
 
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

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
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
NASLUND CHARLES D
  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)
Sr VP of Subsidiary
(Last)
(First)
(Middle)
P.O. BOX 66149
3. Date of Earliest Transaction (Month/Day/Year)
01/17/2012
(Street)

ST. LOUIS, MO 63166-6149
4. If Amendment, Date 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
(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 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               3,152(1) I By 401(K)
Common Stock, $.01 Par Value               4,612(2) I By ESOP
Common Stock, $.01 Par Value 01/17/2012   F   1,295(3) D $28.89 12,590(4) D  
Common Stock, $.01 Par Value 01/17/2012   M   1,481 A $ 0 14,071 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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 control number. SEC 1474 (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 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)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Performance Units (5) 01/17/2012   M     2,776   (5) 12/31/2011 Common Stock 2,776 $ 0 3,739 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
NASLUND CHARLES D
P.O. BOX 66149
ST. LOUIS, MO 63166-6149
      Sr VP of Subsidiary

Signatures

 G. L. Waters, Asst. Secy. of Ameren Corporation, attorney in fact for Charles D. Naslund   01/19/2012
** 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 includes a total of 475 shares acquired monthly from January through December 2011 at prices ranging from $26.91 to $33.41 per share.
(2) Amount includes a total of 226 shares acquired during the first through fourth quarters of 2011 through reinvested dividends at prices ranging from $28.21 to $33.41 per share.
(3) Sold to cover Mr. Naslund's tax liability for acquiring performance shares that have vested.
(4) Amount includes a total of 605 shares acquired during the first through fourth quarters of 2011 through reinvested dividends at prices ranging from $28.21 to $33.41 per share.
(5) Each performance unit represents a contingent right to receive one share of Ameren common stock. The performance units vest after a two year holding period.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.

XNYS:AEE Ameren Corp Insider Activity 4 Filling

Ameren Corp XNYS:AEE Stock - Get Insider Activity SEC Filing of Ameren Corp XNYS:AEE stocks, including company profile, shares outstanding, strategy, business segments, operations, officers, consolidated financial statements, financial notes and ownership information.

XNYS:AEE Ameren Corp Insider Activity 4 Filing - 1/17/2012
Name |  Ticker |  Star Rating |  Market Cap |  Stock Type |  Sector |  Industry Star Rating |  Investment Style |  Total Assets |  Category |  Top Holdings |  Top Sectors |  Symbol |  Title Star Rating |  Category |  Total Assets |  Top Holdings |  Top Sectors |  Symbol |  Name Title |  Date |  Author |  Collection |  Interest |  Popularity Topic |  Sector |  Key Indicators |  User Interest |  Market Cap |  Industry Name |  Ticker |  Star Rating |  Market Cap |  Stock Type |  Sector |  Industry Star Rating |  Investment Style |  Total Assets |  Category |  Top Holdings |  Top Sectors |  Symbol / Ticker |  Title Star Rating |  Category |  Total Assets |  Symbol / Ticker |  Name Title |  Date |  Author |  Collection |  Popularity |  Interest Title |  Date |  Company |  Symbol |  Interest |  Popularity Topic |  Sector |  Key Indicators |  User Interest |  Market Cap |  Industry Title |  Date |  Company |  Symbol |  Interest |  Popularity

Previous: XNYS:AEE Ameren Corp Insider Activity 4 Filing - 1/17/2012  |  Next: XNYS:AEE Ameren Corp Insider Activity 4 Filing - 1/17/2012