AFFILIATED MANAGERS GROUP

Ticker: AMG CUSIP: 008252108 Class: COM

NISA INVESTMENT ADVISORS, LLC's Holding History (CIK: 0000937615)

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

Q4 2025

Shares 19,629 Value ($000) $5,659 Avg Close $258.45 Range $230.09 - $299.69

Q3 2025

Shares 7,973 Value ($000) $1,901 Avg Close $220.39 Range $194.74 - $250.14

Q2 2025

Shares 7,974 Value ($000) $1,569 Avg Close $173.47 Range $139.20 - $199.47

Q1 2025

Shares 8,124 Value ($000) $1,365 Avg Close $174.30 Range $151.61 - $191.09

Q4 2024

Shares 8,124 Value ($000) $1,502 Avg Close $186.57 Range $173.54 - $199.47

Q3 2024

Shares 8,124 Value ($000) $1,444 Avg Close $169.81 Range $152.32 - $189.75

Q2 2024

Shares 8,124 Value ($000) $1,269 Avg Close $159.16 Range $147.08 - $169.59

Q1 2024

Shares 7,974 Value ($000) $1,335 Avg Close $155.40 Range $145.30 - $167.84

Q4 2023

Shares 7,974 Value ($000) $1,207 Avg Close $134.30 Range $120.16 - $156.31

Q3 2023

Shares 7,974 Value ($000) $1,039 Avg Close $139.81 Range $129.01 - $163.83

Q2 2023

Shares 7,974 Value ($000) $1,195 Avg Close $143.06 Range $135.39 - $151.92

Q1 2023

Shares 7,974 Value ($000) $1 Avg Close $157.88 Range $132.31 - $180.50

Q4 2022

Shares 7,974 Value ($000) $1 Avg Close $141.36 Range $108.04 - $163.24

Q3 2022

Shares 7,974 Value ($000) $892 Avg Close $125.39 Range $109.48 - $141.92

Q2 2022

Shares 7,945 Value ($000) $926 Avg Close $128.58 Range $112.28 - $146.71

Q1 2022

Shares 8,045 Value ($000) $1,134 Avg Close $143.53 Range $121.29 - $171.22

Q3 2021

Shares 11,485 Value ($000) $1,735 Avg Close $163.56 Range $146.02 - $180.77

Q2 2021

Shares 11,485 Value ($000) $1,771 Avg Close $159.33 Range $147.97 - $176.63

Q1 2021

Shares 12,285 Value ($000) $1,831 Avg Close $130.58 Range $98.76 - $153.37

Q4 2020

Shares 15,285 Value ($000) $1,554 Avg Close $86.25 Range $66.34 - $103.21

Q3 2020

Shares 15,285 Value ($000) $1,045 Avg Close $69.80 Range $62.10 - $75.77

Q2 2020

Shares 15,285 Value ($000) $1,140 Avg Close $67.48 Range $53.23 - $82.32

Q1 2020

Shares 15,285 Value ($000) $904 Avg Close $74.64 Range $44.30 - $88.80

Q4 2019

Shares 13,260 Value ($000) $1,124 Avg Close $81.44 Range $70.43 - $87.94

Q3 2019

Shares 17,560 Value ($000) $1,464 Avg Close $82.65 Range $73.22 - $92.84

Q2 2019

Shares 18,860 Value ($000) $1,738 Avg Close $96.65 Range $82.01 - $113.84

Q1 2019

Shares 20,060 Value ($000) $2,149 Avg Close $104.33 Range $93.26 - $110.96

Q4 2018

Shares 18,860 Value ($000) $1,838 Avg Close $110.59 Range $86.74 - $136.36

Q3 2018

Shares 18,860 Value ($000) $2,579 Avg Close $144.30 Range $133.37 - $159.64

Q2 2018

Shares 19,810 Value ($000) $2,945 Avg Close $160.74 Range $145.08 - $182.71

Q1 2018

Shares 19,810 Value ($000) $3,755 Avg Close $189.64 Range $169.45 - $211.08

Q4 2017

Shares 20,810 Value ($000) $4,271 Avg Close $188.42 Range $173.99 - $202.01

Q3 2017

Shares 20,860 Value ($000) $3,960 Avg Close $172.79 Range $161.15 - $186.54

Q2 2017

Shares 20,860 Value ($000) $3,411 Avg Close $154.87 Range $144.44 - $164.19

Q1 2017

Shares 21,110 Value ($000) $3,461 Avg Close $153.31 Range $135.07 - $166.39

Q4 2016

Shares 21,110 Value ($000) $3,067 Avg Close $140.58 Range $126.32 - $157.66

Q3 2016

Shares 21,110 Value ($000) $3,055 Avg Close $138.59 Range $126.84 - $143.96

Q2 2016

Shares 21,110 Value ($000) $2,972 Avg Close $158.47 Range $126.98 - $174.12

Q1 2016

Shares 21,710 Value ($000) $3,526 Avg Close $135.06 Range $112.27 - $159.84

Q4 2015

Shares 18,910 Value ($000) $3,021 Avg Close $166.43 Range $137.16 - $184.66

Q3 2015

Shares 19,610 Value ($000) $3,369 Avg Close $190.37 Range $159.30 - $214.73

Q2 2015

Shares 20,210 Value ($000) $4,418 Avg Close $215.27 Range $205.22 - $223.28

Q1 2015

Shares 20,410 Value ($000) $4,384 Avg Close $204.27 Range $185.26 - $214.40

Q4 2014

Shares 20,310 Value ($000) $4,311 Avg Close $192.32 Range $168.87 - $209.59

Q3 2014

Shares 20,410 Value ($000) $4,089 Avg Close $197.54 Range $186.21 - $207.58

Q2 2014

Shares 19,710 Value ($000) $4,048 Avg Close $187.17 Range $171.21 - $199.62

Q1 2014

Shares 19,210 Value ($000) $3,843 Avg Close $190.16 Range $175.09 - $212.40

Q4 2013

Shares 20,210 Value ($000) $4,383 Avg Close $193.15 Range $175.92 - $210.55

Q3 2013

Shares 19,210 Value ($000) $3,509 Avg Close $171.93 Range $151.62 - $183.39

Q2 2013

Shares 19,210 Value ($000) $3,149 Avg Close $153.14 Range $138.12 - $166.12

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	19,629	$5,659	$258.45	$230.09 - $299.69
Q3 2025	7,973	$1,901	$220.39	$194.74 - $250.14
Q2 2025	7,974	$1,569	$173.47	$139.20 - $199.47
Q1 2025	8,124	$1,365	$174.30	$151.61 - $191.09
Q4 2024	8,124	$1,502	$186.57	$173.54 - $199.47
Q3 2024	8,124	$1,444	$169.81	$152.32 - $189.75
Q2 2024	8,124	$1,269	$159.16	$147.08 - $169.59
Q1 2024	7,974	$1,335	$155.40	$145.30 - $167.84
Q4 2023	7,974	$1,207	$134.30	$120.16 - $156.31
Q3 2023	7,974	$1,039	$139.81	$129.01 - $163.83
Q2 2023	7,974	$1,195	$143.06	$135.39 - $151.92
Q1 2023	7,974	$1	$157.88	$132.31 - $180.50
Q4 2022	7,974	$1	$141.36	$108.04 - $163.24
Q3 2022	7,974	$892	$125.39	$109.48 - $141.92
Q2 2022	7,945	$926	$128.58	$112.28 - $146.71
Q1 2022	8,045	$1,134	$143.53	$121.29 - $171.22
Q3 2021	11,485	$1,735	$163.56	$146.02 - $180.77
Q2 2021	11,485	$1,771	$159.33	$147.97 - $176.63
Q1 2021	12,285	$1,831	$130.58	$98.76 - $153.37
Q4 2020	15,285	$1,554	$86.25	$66.34 - $103.21
Q3 2020	15,285	$1,045	$69.80	$62.10 - $75.77
Q2 2020	15,285	$1,140	$67.48	$53.23 - $82.32
Q1 2020	15,285	$904	$74.64	$44.30 - $88.80
Q4 2019	13,260	$1,124	$81.44	$70.43 - $87.94
Q3 2019	17,560	$1,464	$82.65	$73.22 - $92.84
Q2 2019	18,860	$1,738	$96.65	$82.01 - $113.84
Q1 2019	20,060	$2,149	$104.33	$93.26 - $110.96
Q4 2018	18,860	$1,838	$110.59	$86.74 - $136.36
Q3 2018	18,860	$2,579	$144.30	$133.37 - $159.64
Q2 2018	19,810	$2,945	$160.74	$145.08 - $182.71
Q1 2018	19,810	$3,755	$189.64	$169.45 - $211.08
Q4 2017	20,810	$4,271	$188.42	$173.99 - $202.01
Q3 2017	20,860	$3,960	$172.79	$161.15 - $186.54
Q2 2017	20,860	$3,411	$154.87	$144.44 - $164.19
Q1 2017	21,110	$3,461	$153.31	$135.07 - $166.39
Q4 2016	21,110	$3,067	$140.58	$126.32 - $157.66
Q3 2016	21,110	$3,055	$138.59	$126.84 - $143.96
Q2 2016	21,110	$2,972	$158.47	$126.98 - $174.12
Q1 2016	21,710	$3,526	$135.06	$112.27 - $159.84
Q4 2015	18,910	$3,021	$166.43	$137.16 - $184.66
Q3 2015	19,610	$3,369	$190.37	$159.30 - $214.73
Q2 2015	20,210	$4,418	$215.27	$205.22 - $223.28
Q1 2015	20,410	$4,384	$204.27	$185.26 - $214.40
Q4 2014	20,310	$4,311	$192.32	$168.87 - $209.59
Q3 2014	20,410	$4,089	$197.54	$186.21 - $207.58
Q2 2014	19,710	$4,048	$187.17	$171.21 - $199.62
Q1 2014	19,210	$3,843	$190.16	$175.09 - $212.40
Q4 2013	20,210	$4,383	$193.15	$175.92 - $210.55
Q3 2013	19,210	$3,509	$171.93	$151.62 - $183.39
Q2 2013	19,210	$3,149	$153.14	$138.12 - $166.12