AFFILIATED MANAGERS GROUP

Ticker: AMG CUSIP: 008252108 Class: COM

Aureus Asset Management, LLC's Holding History (CIK: 0001381296)

Note: Option positions (PUT/CALL) are excluded.

Q2 2014

Shares 1,000 Value ($000) $205 Avg Close $187.17 Range $171.21 - $199.62

Q1 2014

Shares 1,000 Value ($000) $200 Avg Close $190.16 Range $175.09 - $212.40

Q4 2013

Shares 1,000 Value ($000) $217 Avg Close $193.15 Range $175.92 - $210.55

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2014	1,000	$205	$187.17	$171.21 - $199.62
Q1 2014	1,000	$200	$190.16	$175.09 - $212.40
Q4 2013	1,000	$217	$193.15	$175.92 - $210.55