AFFILIATED MANAGERS GROUP

Ticker: AMG CUSIP: 008252108 Class: COM

GATEWAY INVESTMENT ADVISERS LLC's Holding History (CIK: 0001114618)

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

Q2 2019

Shares 2,517 Value ($000) $232 Avg Close $96.65 Range $82.01 - $113.84

Q1 2019

Shares 2,517 Value ($000) $270 Avg Close $104.33 Range $93.26 - $110.96

Q4 2018

Shares 2,797 Value ($000) $273 Avg Close $110.59 Range $86.74 - $136.36

Q3 2018

Shares 2,824 Value ($000) $386 Avg Close $144.30 Range $133.37 - $159.64

Q2 2018

Shares 2,893 Value ($000) $430 Avg Close $160.74 Range $145.08 - $182.71

Q1 2018

Shares 3,152 Value ($000) $598 Avg Close $189.64 Range $169.45 - $211.08

Q4 2017

Shares 74,907 Value ($000) $15,375 Avg Close $188.42 Range $173.99 - $202.01

Q3 2017

Shares 74,075 Value ($000) $14,062 Avg Close $172.79 Range $161.15 - $186.54

Q2 2017

Shares 116,369 Value ($000) $19,301 Avg Close $154.87 Range $144.44 - $164.19

Q1 2017

Shares 116,080 Value ($000) $19,030 Avg Close $153.31 Range $135.07 - $166.39

Q4 2016

Shares 127,773 Value ($000) $18,565 Avg Close $140.58 Range $126.32 - $157.66

Q3 2016

Shares 127,903 Value ($000) $18,508 Avg Close $138.59 Range $126.84 - $143.96

Q2 2016

Shares 124,241 Value ($000) $17,489 Avg Close $158.47 Range $126.98 - $174.12

Q1 2016

Shares 139,505 Value ($000) $22,656 Avg Close $135.06 Range $112.27 - $159.84

Q4 2015

Shares 131,102 Value ($000) $20,945 Avg Close $166.43 Range $137.16 - $184.66

Q3 2015

Shares 117,941 Value ($000) $20,167 Avg Close $190.37 Range $159.30 - $214.73

Q2 2015

Shares 99,593 Value ($000) $21,771 Avg Close $215.27 Range $205.22 - $223.28

Q1 2015

Shares 99,695 Value ($000) $21,412 Avg Close $204.27 Range $185.26 - $214.40

Q4 2014

Shares 99,766 Value ($000) $21,174 Avg Close $192.32 Range $168.87 - $209.59

Q3 2014

Shares 57,345 Value ($000) $11,490 Avg Close $197.54 Range $186.21 - $207.58

Q2 2014

Shares 12,487 Value ($000) $2,565 Avg Close $187.17 Range $171.21 - $199.62

Q1 2014

Shares 12,514 Value ($000) $2,503 Avg Close $190.16 Range $175.09 - $212.40

Q4 2013

Shares 12,529 Value ($000) $2,717 Avg Close $193.15 Range $175.92 - $210.55

Q3 2013

Shares 12,229 Value ($000) $2,234 Avg Close $171.93 Range $151.62 - $183.39

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2019	2,517	$232	$96.65	$82.01 - $113.84
Q1 2019	2,517	$270	$104.33	$93.26 - $110.96
Q4 2018	2,797	$273	$110.59	$86.74 - $136.36
Q3 2018	2,824	$386	$144.30	$133.37 - $159.64
Q2 2018	2,893	$430	$160.74	$145.08 - $182.71
Q1 2018	3,152	$598	$189.64	$169.45 - $211.08
Q4 2017	74,907	$15,375	$188.42	$173.99 - $202.01
Q3 2017	74,075	$14,062	$172.79	$161.15 - $186.54
Q2 2017	116,369	$19,301	$154.87	$144.44 - $164.19
Q1 2017	116,080	$19,030	$153.31	$135.07 - $166.39
Q4 2016	127,773	$18,565	$140.58	$126.32 - $157.66
Q3 2016	127,903	$18,508	$138.59	$126.84 - $143.96
Q2 2016	124,241	$17,489	$158.47	$126.98 - $174.12
Q1 2016	139,505	$22,656	$135.06	$112.27 - $159.84
Q4 2015	131,102	$20,945	$166.43	$137.16 - $184.66
Q3 2015	117,941	$20,167	$190.37	$159.30 - $214.73
Q2 2015	99,593	$21,771	$215.27	$205.22 - $223.28
Q1 2015	99,695	$21,412	$204.27	$185.26 - $214.40
Q4 2014	99,766	$21,174	$192.32	$168.87 - $209.59
Q3 2014	57,345	$11,490	$197.54	$186.21 - $207.58
Q2 2014	12,487	$2,565	$187.17	$171.21 - $199.62
Q1 2014	12,514	$2,503	$190.16	$175.09 - $212.40
Q4 2013	12,529	$2,717	$193.15	$175.92 - $210.55
Q3 2013	12,229	$2,234	$171.93	$151.62 - $183.39