AFFILIATED MANAGERS GROUP, INC. — Director's Dealing 2010

Jun 16, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AFFILIATED MANAGERS GROUP INC (AMG)
CIK: 0001004434
Period of Report: 2010-06-14

Reporting Person: NUTT WILLIAM J (Director, Chairman)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-06-14	Common Stock	M	110202	$43.50	Acquired	351991	Direct
2010-06-14	Common Stock	S	37174	$68.06	Disposed	351991	Direct
2010-06-14	Common Stock	S	48028	$69.59	Disposed	351991	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-06-14	Employee Stock Option (Right to Buy)	$43.50	D	110202	Disposed	2010-07-24	Common Stock (110202)	Direct

Footnotes

F1: The sale price reflects the weighted average price of the shares sold; the individual transaction prices ranged from $67.57 to $68.86. Specific details will be provided to the SEC upon request.

F2: The sale price reflects the weighted average price of shares sold; the individual transaction prices ranged from $68.88 to $70.18. Specific details will be provided to the SEC upon request.