AMEREN CORP — Director's Dealing 2012

Feb 29, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMEREN CORP (AEE)
CIK: 0001002910
Period of Report: 2012-02-28

Reporting Person: MOEHN MICHAEL L (Sr. VP of Subsidiary)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-02-28	Common Stock, $.01 Par Value	F	1631	$31.97	Disposed	5218	Direct
2012-02-28	Common Stock, $.01 Par Value	M	2303	—	Acquired	7521	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, $.01 Par Value	2949	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Performance Units	$		Common Stock (2276)	2276	Direct

Footnotes

F1: Sold to cover Mr. Moehn's tax liability for acquiring performance shares that have vested.

F2: 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.