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

Nov 7, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AFFILIATED MANAGERS GROUP INC (AMG)
CIK: 0001004434
Period of Report: 2012-11-05

Reporting Person: NUTT WILLIAM J (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-11-05	Common Stock	M	137500	$45.27	Acquired	160891	Direct
2012-11-05	Common Stock	M	72500	$63.38	Acquired	160891	Direct
2012-11-05	Common Stock	S	210000	$127.71	Disposed	160891	Direct
2012-11-06	Common Stock	M	65000	$63.38	Acquired	160891	Direct
2012-11-06	Common Stock	S	65000	$128.43	Disposed	160891	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-11-05	Stock Option	$45.27	M	137500	Disposed	2014-07-27	Common Stock (137500)	Direct
2012-11-05	Stock Option	$63.38	M	72500	Disposed	2014-11-30	Common Stock (72500)	Direct
2012-11-06	Stock Option	$63.38	M	65000	Disposed	2014-11-30	Common Stock (65000)	Direct

Footnotes

F1: The sale reflects the weighted average sales price of the shares sold; the individual transaction prices ranged from $126.80 to $128.77. Specific transaction details will be provided to the SEC upon request.

F2: The sale reflects the weighted average sales price of the shares sold; the individual transaction prices ranged from $128.00 to $129.01. Specific transaction details will be provided to the SEC upon request.