AFFILIATED MANAGERS GROUP

Ticker: AMG CUSIP: 008252108 Class: COM

NATIXIS ADVISORS, L.P.'s Holding History (CIK: 0001018331)

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

Q2 2025

Shares 11,902 Value ($000) $2 Avg Close $173.47 Range $139.20 - $199.47

Q1 2025

Shares 12,487 Value ($000) $2 Avg Close $174.30 Range $151.61 - $191.09

Q4 2024

Shares 13,875 Value ($000) $3 Avg Close $186.57 Range $173.54 - $199.47

Q3 2024

Shares 12,856 Value ($000) $2 Avg Close $169.81 Range $152.32 - $189.75

Q2 2024

Shares 12,473 Value ($000) $2 Avg Close $159.16 Range $147.08 - $169.59

Q1 2024

Shares 12,105 Value ($000) $2 Avg Close $155.40 Range $145.30 - $167.84

Q4 2023

Shares 12,018 Value ($000) $2 Avg Close $134.30 Range $120.16 - $156.31

Q3 2023

Shares 11,307 Value ($000) $1 Avg Close $139.81 Range $129.01 - $163.83

Q2 2023

Shares 12,082 Value ($000) $2 Avg Close $143.06 Range $135.39 - $151.92

Q1 2023

Shares 13,664 Value ($000) $2 Avg Close $157.88 Range $132.31 - $180.50

Q4 2022

Shares 13,612 Value ($000) $2 Avg Close $141.36 Range $108.04 - $163.24

Q3 2022

Shares 13,151 Value ($000) $1,471 Avg Close $125.39 Range $109.48 - $141.92

Q2 2022

Shares 12,924 Value ($000) $1,507 Avg Close $128.58 Range $112.28 - $146.71

Q1 2022

Shares 12,741 Value ($000) $1,796 Avg Close $143.53 Range $121.29 - $171.22

Q4 2021

Shares 12,431 Value ($000) $2,045 Avg Close $167.52 Range $146.96 - $191.42

Q3 2021

Shares 11,082 Value ($000) $1,674 Avg Close $163.56 Range $146.02 - $180.77

Q2 2021

Shares 10,773 Value ($000) $1,661 Avg Close $159.33 Range $147.97 - $176.63

Q1 2021

Shares 11,515 Value ($000) $1,716 Avg Close $130.58 Range $98.76 - $153.37

Q4 2020

Shares 11,441 Value ($000) $1,164 Avg Close $86.25 Range $66.34 - $103.21

Q3 2020

Shares 51,642 Value ($000) $3,531 Avg Close $69.80 Range $62.10 - $75.77

Q2 2020

Shares 62,191 Value ($000) $4,637 Avg Close $67.48 Range $53.23 - $82.32

Q1 2020

Shares 54,373 Value ($000) $3,216 Avg Close $74.64 Range $44.30 - $88.80

Q4 2019

Shares 54,088 Value ($000) $4,583 Avg Close $81.44 Range $70.43 - $87.94

Q3 2019

Shares 43,777 Value ($000) $3,649 Avg Close $82.65 Range $73.22 - $92.84

Q2 2019

Shares 34,607 Value ($000) $3,189 Avg Close $96.65 Range $82.01 - $113.84

Q1 2019

Shares 40,500 Value ($000) $4,338 Avg Close $104.33 Range $93.26 - $110.96

Q4 2018

Shares 29,127 Value ($000) $2,838 Avg Close $110.59 Range $86.74 - $136.36

Q3 2018

Shares 37,115 Value ($000) $5,074 Avg Close $144.30 Range $133.37 - $159.64

Q2 2018

Shares 34,779 Value ($000) $5,171 Avg Close $160.74 Range $145.08 - $182.71

Q1 2018

Shares 31,037 Value ($000) $5,884 Avg Close $189.64 Range $169.45 - $211.08

Q4 2017

Shares 29,998 Value ($000) $6,157 Avg Close $188.42 Range $173.99 - $202.01

Q3 2017

Shares 28,447 Value ($000) $5,400 Avg Close $172.79 Range $161.15 - $186.54

Q2 2017

Shares 27,264 Value ($000) $4,522 Avg Close $154.87 Range $144.44 - $164.19

Q1 2017

Shares 26,401 Value ($000) $4,328 Avg Close $153.31 Range $135.07 - $166.39

Q4 2016

Shares 22,076 Value ($000) $3,208 Avg Close $140.58 Range $126.32 - $157.66

Q3 2016

Shares 20,323 Value ($000) $2,941 Avg Close $138.59 Range $126.84 - $143.96

Q2 2016

Shares 17,602 Value ($000) $2,478 Avg Close $158.47 Range $126.98 - $174.12

Q1 2016

Shares 16,986 Value ($000) $2,759 Avg Close $135.06 Range $112.27 - $159.84

Q4 2015

Shares 17,026 Value ($000) $2,720 Avg Close $166.43 Range $137.16 - $184.66

Q3 2015

Shares 27,845 Value ($000) $4,761 Avg Close $190.37 Range $159.30 - $214.73

Q2 2015

Shares 23,747 Value ($000) $5,191 Avg Close $215.27 Range $205.22 - $223.28

Q1 2015

Shares 31,031 Value ($000) $6,665 Avg Close $204.27 Range $185.26 - $214.40

Q4 2014

Shares 27,223 Value ($000) $5,778 Avg Close $192.32 Range $168.87 - $209.59

Q3 2014

Shares 18,689 Value ($000) $3,745 Avg Close $197.54 Range $186.21 - $207.58

Q2 2014

Shares 17,355 Value ($000) $3,565 Avg Close $187.17 Range $171.21 - $199.62

Q1 2014

Shares 16,524 Value ($000) $3,306 Avg Close $190.16 Range $175.09 - $212.40

Q4 2013

Shares 16,751 Value ($000) $3,633 Avg Close $193.15 Range $175.92 - $210.55

Q3 2013

Shares 12,012 Value ($000) $2,194 Avg Close $171.93 Range $151.62 - $183.39

Q2 2013

Shares 13,494 Value ($000) $2,212 Avg Close $153.14 Range $138.12 - $166.12

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	11,902	$2	$173.47	$139.20 - $199.47
Q1 2025	12,487	$2	$174.30	$151.61 - $191.09
Q4 2024	13,875	$3	$186.57	$173.54 - $199.47
Q3 2024	12,856	$2	$169.81	$152.32 - $189.75
Q2 2024	12,473	$2	$159.16	$147.08 - $169.59
Q1 2024	12,105	$2	$155.40	$145.30 - $167.84
Q4 2023	12,018	$2	$134.30	$120.16 - $156.31
Q3 2023	11,307	$1	$139.81	$129.01 - $163.83
Q2 2023	12,082	$2	$143.06	$135.39 - $151.92
Q1 2023	13,664	$2	$157.88	$132.31 - $180.50
Q4 2022	13,612	$2	$141.36	$108.04 - $163.24
Q3 2022	13,151	$1,471	$125.39	$109.48 - $141.92
Q2 2022	12,924	$1,507	$128.58	$112.28 - $146.71
Q1 2022	12,741	$1,796	$143.53	$121.29 - $171.22
Q4 2021	12,431	$2,045	$167.52	$146.96 - $191.42
Q3 2021	11,082	$1,674	$163.56	$146.02 - $180.77
Q2 2021	10,773	$1,661	$159.33	$147.97 - $176.63
Q1 2021	11,515	$1,716	$130.58	$98.76 - $153.37
Q4 2020	11,441	$1,164	$86.25	$66.34 - $103.21
Q3 2020	51,642	$3,531	$69.80	$62.10 - $75.77
Q2 2020	62,191	$4,637	$67.48	$53.23 - $82.32
Q1 2020	54,373	$3,216	$74.64	$44.30 - $88.80
Q4 2019	54,088	$4,583	$81.44	$70.43 - $87.94
Q3 2019	43,777	$3,649	$82.65	$73.22 - $92.84
Q2 2019	34,607	$3,189	$96.65	$82.01 - $113.84
Q1 2019	40,500	$4,338	$104.33	$93.26 - $110.96
Q4 2018	29,127	$2,838	$110.59	$86.74 - $136.36
Q3 2018	37,115	$5,074	$144.30	$133.37 - $159.64
Q2 2018	34,779	$5,171	$160.74	$145.08 - $182.71
Q1 2018	31,037	$5,884	$189.64	$169.45 - $211.08
Q4 2017	29,998	$6,157	$188.42	$173.99 - $202.01
Q3 2017	28,447	$5,400	$172.79	$161.15 - $186.54
Q2 2017	27,264	$4,522	$154.87	$144.44 - $164.19
Q1 2017	26,401	$4,328	$153.31	$135.07 - $166.39
Q4 2016	22,076	$3,208	$140.58	$126.32 - $157.66
Q3 2016	20,323	$2,941	$138.59	$126.84 - $143.96
Q2 2016	17,602	$2,478	$158.47	$126.98 - $174.12
Q1 2016	16,986	$2,759	$135.06	$112.27 - $159.84
Q4 2015	17,026	$2,720	$166.43	$137.16 - $184.66
Q3 2015	27,845	$4,761	$190.37	$159.30 - $214.73
Q2 2015	23,747	$5,191	$215.27	$205.22 - $223.28
Q1 2015	31,031	$6,665	$204.27	$185.26 - $214.40
Q4 2014	27,223	$5,778	$192.32	$168.87 - $209.59
Q3 2014	18,689	$3,745	$197.54	$186.21 - $207.58
Q2 2014	17,355	$3,565	$187.17	$171.21 - $199.62
Q1 2014	16,524	$3,306	$190.16	$175.09 - $212.40
Q4 2013	16,751	$3,633	$193.15	$175.92 - $210.55
Q3 2013	12,012	$2,194	$171.93	$151.62 - $183.39
Q2 2013	13,494	$2,212	$153.14	$138.12 - $166.12