AFFILIATED MANAGERS GROUP, INC. — Director's Dealing 2015

May 5, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AFFILIATED MANAGERS GROUP, INC. (AMG)
CIK: 0001004434
Period of Report: 2015-05-01

Reporting Person: Horgen Jay C. (CFO and Treasurer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-05-01	Common Stock	M	1611	$62.04	Acquired	34101	Direct
2015-05-01	Common Stock	M	15000	$62.91	Acquired	34101	Direct
2015-05-01	Common Stock	S	22411	$226.97	Disposed	34101	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-05-01	Employee Stock Option (Right to Buy)	$62.04	M	1611	Disposed	2016-07-21	Common Stock (1611)	Direct
2015-05-01	Employee Stock Option (Right to Buy)	$62.91	M	15000	Disposed	2017-07-20	Common Stock (15000)	Direct

Footnotes

F1: The sale reflects the weighted average sales price of the shares sold; the individual transaction prices ranged from $225.63 to $228.11. Specific transaction details will be provided to the SEC upon request.