AFFILIATED MANAGERS GROUP

Ticker: AMG CUSIP: 008252108 Class: COM

STATE OF MICHIGAN RETIREMENT SYSTEM's Holding History (CIK: 0000762152)

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

Q4 2025

Shares 6,619 Value ($000) $1,908 Avg Close $258.45 Range $230.09 - $299.69

Q3 2025

Shares 6,719 Value ($000) $1,602 Avg Close $220.39 Range $194.74 - $250.14

Q2 2025

Shares 6,819 Value ($000) $1,342 Avg Close $173.47 Range $139.20 - $199.47

Q1 2025

Shares 7,019 Value ($000) $1,179 Avg Close $174.30 Range $151.61 - $191.09

Q4 2024

Shares 7,119 Value ($000) $1,316 Avg Close $186.57 Range $173.54 - $199.47

Q3 2024

Shares 7,119 Value ($000) $1,266 Avg Close $169.81 Range $152.32 - $189.75

Q2 2024

Shares 7,719 Value ($000) $1,206 Avg Close $159.16 Range $147.08 - $169.59

Q1 2024

Shares 8,319 Value ($000) $1,393 Avg Close $155.40 Range $145.30 - $167.84

Q4 2023

Shares 8,119 Value ($000) $1,229 Avg Close $134.30 Range $120.16 - $156.31

Q3 2023

Shares 8,419 Value ($000) $1,097 Avg Close $139.81 Range $129.01 - $163.83

Q2 2023

Shares 8,919 Value ($000) $1,337 Avg Close $143.06 Range $135.39 - $151.92

Q1 2023

Shares 9,519 Value ($000) $1,356 Avg Close $157.88 Range $132.31 - $180.50

Q4 2022

Shares 9,619 Value ($000) $1,524 Avg Close $141.36 Range $108.04 - $163.24

Q3 2022

Shares 9,619 Value ($000) $1,076 Avg Close $125.39 Range $109.48 - $141.92

Q2 2022

Shares 9,819 Value ($000) $1,145 Avg Close $128.58 Range $112.28 - $146.71

Q1 2022

Shares 10,319 Value ($000) $1,454 Avg Close $143.53 Range $121.29 - $171.22

Q4 2021

Shares 10,266 Value ($000) $1,689 Avg Close $167.52 Range $146.96 - $191.42

Q3 2021

Shares 10,366 Value ($000) $1,566 Avg Close $163.56 Range $146.02 - $180.77

Q2 2021

Shares 10,466 Value ($000) $1,614 Avg Close $159.33 Range $147.97 - $176.63

Q1 2021

Shares 15,766 Value ($000) $2,350 Avg Close $130.58 Range $98.76 - $153.37

Q4 2020

Shares 16,566 Value ($000) $1,685 Avg Close $86.25 Range $66.34 - $103.21

Q3 2020

Shares 16,966 Value ($000) $1,160 Avg Close $69.80 Range $62.10 - $75.77

Q2 2020

Shares 17,166 Value ($000) $1,280 Avg Close $67.48 Range $53.23 - $82.32

Q1 2020

Shares 13,700 Value ($000) $810 Avg Close $74.64 Range $44.30 - $88.80

Q4 2019

Shares 14,500 Value ($000) $1,229 Avg Close $81.44 Range $70.43 - $87.94

Q3 2019

Shares 12,156 Value ($000) $1,013 Avg Close $82.65 Range $73.22 - $92.84

Q2 2019

Shares 12,256 Value ($000) $1,129 Avg Close $96.65 Range $82.01 - $113.84

Q1 2019

Shares 14,956 Value ($000) $1,602 Avg Close $104.33 Range $93.26 - $110.96

Q4 2018

Shares 15,056 Value ($000) $1,467 Avg Close $110.59 Range $86.74 - $136.36

Q3 2018

Shares 15,956 Value ($000) $2,182 Avg Close $144.30 Range $133.37 - $159.64

Q2 2018

Shares 16,056 Value ($000) $2,387 Avg Close $160.74 Range $145.08 - $182.71

Q1 2018

Shares 16,056 Value ($000) $3,044 Avg Close $189.64 Range $169.45 - $211.08

Q4 2017

Shares 16,256 Value ($000) $3,337 Avg Close $188.42 Range $173.99 - $202.01

Q3 2017

Shares 16,956 Value ($000) $3,219 Avg Close $172.79 Range $161.15 - $186.54

Q2 2017

Shares 18,556 Value ($000) $3,078 Avg Close $154.87 Range $144.44 - $164.19

Q1 2017

Shares 18,656 Value ($000) $3,058 Avg Close $153.31 Range $135.07 - $166.39

Q4 2016

Shares 17,956 Value ($000) $2,609 Avg Close $140.58 Range $126.32 - $157.66

Q3 2016

Shares 18,800 Value ($000) $2,720 Avg Close $138.59 Range $126.84 - $143.96

Q2 2016

Shares 18,700 Value ($000) $2,632 Avg Close $158.47 Range $126.98 - $174.12

Q1 2016

Shares 18,600 Value ($000) $3,021 Avg Close $135.06 Range $112.27 - $159.84

Q4 2015

Shares 18,500 Value ($000) $2,956 Avg Close $166.43 Range $137.16 - $184.66

Q3 2015

Shares 19,600 Value ($000) $3,351 Avg Close $190.37 Range $159.30 - $214.73

Q2 2015

Shares 21,200 Value ($000) $4,634 Avg Close $215.27 Range $205.22 - $223.28

Q1 2015

Shares 21,100 Value ($000) $4,532 Avg Close $204.27 Range $185.26 - $214.40

Q4 2014

Shares 22,900 Value ($000) $4,860 Avg Close $192.32 Range $168.87 - $209.59

Q3 2014

Shares 22,800 Value ($000) $4,568 Avg Close $197.54 Range $186.21 - $207.58

Q2 2014

Shares 22,400 Value ($000) $4,601 Avg Close $187.17 Range $171.21 - $199.62

Q1 2014

Shares 25,100 Value ($000) $5,021 Avg Close $190.16 Range $175.09 - $212.40

Q4 2013

Shares 24,800 Value ($000) $5,379 Avg Close $193.15 Range $175.92 - $210.55

Q3 2013

Shares 24,600 Value ($000) $4,493 Avg Close $171.93 Range $151.62 - $183.39

Q2 2013

Shares 24,300 Value ($000) $3,984 Avg Close $153.14 Range $138.12 - $166.12

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	6,619	$1,908	$258.45	$230.09 - $299.69
Q3 2025	6,719	$1,602	$220.39	$194.74 - $250.14
Q2 2025	6,819	$1,342	$173.47	$139.20 - $199.47
Q1 2025	7,019	$1,179	$174.30	$151.61 - $191.09
Q4 2024	7,119	$1,316	$186.57	$173.54 - $199.47
Q3 2024	7,119	$1,266	$169.81	$152.32 - $189.75
Q2 2024	7,719	$1,206	$159.16	$147.08 - $169.59
Q1 2024	8,319	$1,393	$155.40	$145.30 - $167.84
Q4 2023	8,119	$1,229	$134.30	$120.16 - $156.31
Q3 2023	8,419	$1,097	$139.81	$129.01 - $163.83
Q2 2023	8,919	$1,337	$143.06	$135.39 - $151.92
Q1 2023	9,519	$1,356	$157.88	$132.31 - $180.50
Q4 2022	9,619	$1,524	$141.36	$108.04 - $163.24
Q3 2022	9,619	$1,076	$125.39	$109.48 - $141.92
Q2 2022	9,819	$1,145	$128.58	$112.28 - $146.71
Q1 2022	10,319	$1,454	$143.53	$121.29 - $171.22
Q4 2021	10,266	$1,689	$167.52	$146.96 - $191.42
Q3 2021	10,366	$1,566	$163.56	$146.02 - $180.77
Q2 2021	10,466	$1,614	$159.33	$147.97 - $176.63
Q1 2021	15,766	$2,350	$130.58	$98.76 - $153.37
Q4 2020	16,566	$1,685	$86.25	$66.34 - $103.21
Q3 2020	16,966	$1,160	$69.80	$62.10 - $75.77
Q2 2020	17,166	$1,280	$67.48	$53.23 - $82.32
Q1 2020	13,700	$810	$74.64	$44.30 - $88.80
Q4 2019	14,500	$1,229	$81.44	$70.43 - $87.94
Q3 2019	12,156	$1,013	$82.65	$73.22 - $92.84
Q2 2019	12,256	$1,129	$96.65	$82.01 - $113.84
Q1 2019	14,956	$1,602	$104.33	$93.26 - $110.96
Q4 2018	15,056	$1,467	$110.59	$86.74 - $136.36
Q3 2018	15,956	$2,182	$144.30	$133.37 - $159.64
Q2 2018	16,056	$2,387	$160.74	$145.08 - $182.71
Q1 2018	16,056	$3,044	$189.64	$169.45 - $211.08
Q4 2017	16,256	$3,337	$188.42	$173.99 - $202.01
Q3 2017	16,956	$3,219	$172.79	$161.15 - $186.54
Q2 2017	18,556	$3,078	$154.87	$144.44 - $164.19
Q1 2017	18,656	$3,058	$153.31	$135.07 - $166.39
Q4 2016	17,956	$2,609	$140.58	$126.32 - $157.66
Q3 2016	18,800	$2,720	$138.59	$126.84 - $143.96
Q2 2016	18,700	$2,632	$158.47	$126.98 - $174.12
Q1 2016	18,600	$3,021	$135.06	$112.27 - $159.84
Q4 2015	18,500	$2,956	$166.43	$137.16 - $184.66
Q3 2015	19,600	$3,351	$190.37	$159.30 - $214.73
Q2 2015	21,200	$4,634	$215.27	$205.22 - $223.28
Q1 2015	21,100	$4,532	$204.27	$185.26 - $214.40
Q4 2014	22,900	$4,860	$192.32	$168.87 - $209.59
Q3 2014	22,800	$4,568	$197.54	$186.21 - $207.58
Q2 2014	22,400	$4,601	$187.17	$171.21 - $199.62
Q1 2014	25,100	$5,021	$190.16	$175.09 - $212.40
Q4 2013	24,800	$5,379	$193.15	$175.92 - $210.55
Q3 2013	24,600	$4,493	$171.93	$151.62 - $183.39
Q2 2013	24,300	$3,984	$153.14	$138.12 - $166.12