AFFILIATED MANAGERS GROUP, INC. — Director's Dealing 2012

Aug 7, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AFFILIATED MANAGERS GROUP INC (AMG)
CIK: 0001004434
Period of Report: 2012-08-03

Reporting Person: HEALEY SEAN M (Director, CEO and Chairman)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-08-03	Common Stock	M	37500	$45.27	Acquired	48446	Direct
2012-08-03	Common Stock	M	92500	$48.38	Acquired	48446	Direct
2012-08-03	Common Stock	S	130000	$112.63	Disposed	48446	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-08-03	Employee Stock Option (Right to Buy)	$45.27	M	37500	Disposed	2014-07-27	Common Stock (37500)	Direct
2012-08-03	Employee Stock Option (Right to Buy)	$48.38	M	92500	Disposed	2015-11-03	Common Stock (92500)	Direct

Footnotes

F1: The sale reflects the weighted average sales price of the shares sold; the individual transaction prices ranged from $112.46 to $113.00. Specific transaction details will be provided to the SEC upon request.