AFFILIATED MANAGERS GROUP

Ticker: AMG CUSIP: 008252108 Class: COM

ALLIANCEBERNSTEIN L.P.'s Holding History (CIK: 0001109448)

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

Q4 2025

Shares 86,642 Value ($000) $24,977 Avg Close $258.45 Range $230.09 - $299.69

Q3 2025

Shares 114,979 Value ($000) $27,414 Avg Close $220.39 Range $194.74 - $250.14

Q2 2025

Shares 40,853 Value ($000) $8,039 Avg Close $173.47 Range $139.20 - $199.47

Q1 2025

Shares 37,936 Value ($000) $6,374 Avg Close $174.30 Range $151.61 - $191.09

Q4 2024

Shares 39,532 Value ($000) $7,310 Avg Close $186.57 Range $173.54 - $199.47

Q3 2024

Shares 50,092 Value ($000) $8,906 Avg Close $169.81 Range $152.32 - $189.75

Q2 2024

Shares 56,967 Value ($000) $8,900 Avg Close $159.16 Range $147.08 - $169.59

Q1 2024

Shares 62,086 Value ($000) $10,398 Avg Close $155.40 Range $145.30 - $167.84

Q4 2023

Shares 57,101 Value ($000) $8,646 Avg Close $134.30 Range $120.16 - $156.31

Q3 2023

Shares 56,742 Value ($000) $7,396 Avg Close $139.81 Range $129.01 - $163.83

Q2 2023

Shares 55,312 Value ($000) $8,291 Avg Close $143.06 Range $135.39 - $151.92

Q1 2023

Shares 57,183 Value ($000) $8,144 Avg Close $157.88 Range $132.31 - $180.50

Q4 2022

Shares 58,194 Value ($000) $9,220 Avg Close $141.36 Range $108.04 - $163.24

Q3 2022

Shares 58,633 Value ($000) $6,558 Avg Close $125.39 Range $109.48 - $141.92

Q2 2022

Shares 59,936 Value ($000) $6,989 Avg Close $128.58 Range $112.28 - $146.71

Q1 2022

Shares 62,016 Value ($000) $8,741 Avg Close $143.53 Range $121.29 - $171.22

Q4 2021

Shares 63,301 Value ($000) $10,414 Avg Close $167.52 Range $146.96 - $191.42

Q3 2021

Shares 64,227 Value ($000) $9,704 Avg Close $163.56 Range $146.02 - $180.77

Q2 2021

Shares 66,777 Value ($000) $10,298 Avg Close $159.33 Range $147.97 - $176.63

Q1 2021

Shares 68,756 Value ($000) $10,247 Avg Close $130.58 Range $98.76 - $153.37

Q4 2020

Shares 72,841 Value ($000) $7,408 Avg Close $86.25 Range $66.34 - $103.21

Q3 2020

Shares 82,040 Value ($000) $5,610 Avg Close $69.80 Range $62.10 - $75.77

Q2 2020

Shares 85,366 Value ($000) $6,365 Avg Close $67.48 Range $53.23 - $82.32

Q1 2020

Shares 86,591 Value ($000) $5,121 Avg Close $74.64 Range $44.30 - $88.80

Q4 2019

Shares 87,883 Value ($000) $7,447 Avg Close $81.44 Range $70.43 - $87.94

Q3 2019

Shares 81,015 Value ($000) $6,753 Avg Close $82.65 Range $73.22 - $92.84

Q2 2019

Shares 111,169 Value ($000) $10,243 Avg Close $96.65 Range $82.01 - $113.84

Q1 2019

Shares 114,440 Value ($000) $12,258 Avg Close $104.33 Range $93.26 - $110.96

Q4 2018

Shares 497,735 Value ($000) $48,499 Avg Close $110.59 Range $86.74 - $136.36

Q3 2018

Shares 635,817 Value ($000) $86,929 Avg Close $144.30 Range $133.37 - $159.64

Q2 2018

Shares 624,892 Value ($000) $92,903 Avg Close $160.74 Range $145.08 - $182.71

Q1 2018

Shares 604,618 Value ($000) $114,623 Avg Close $189.64 Range $169.45 - $211.08

Q4 2017

Shares 587,370 Value ($000) $120,558 Avg Close $188.42 Range $173.99 - $202.01

Q3 2017

Shares 592,341 Value ($000) $112,444 Avg Close $172.79 Range $161.15 - $186.54

Q2 2017

Shares 600,220 Value ($000) $99,552 Avg Close $154.87 Range $144.44 - $164.19

Q1 2017

Shares 556,427 Value ($000) $91,221 Avg Close $153.31 Range $135.07 - $166.39

Q4 2016

Shares 619,941 Value ($000) $90,077 Avg Close $140.58 Range $126.32 - $157.66

Q3 2016

Shares 704,584 Value ($000) $101,953 Avg Close $138.59 Range $126.84 - $143.96

Q2 2016

Shares 738,195 Value ($000) $103,916 Avg Close $158.47 Range $126.98 - $174.12

Q1 2016

Shares 770,520 Value ($000) $125,132 Avg Close $135.06 Range $112.27 - $159.84

Q4 2015

Shares 1,182,084 Value ($000) $188,850 Avg Close $166.43 Range $137.16 - $184.66

Q3 2015

Shares 1,070,353 Value ($000) $183,020 Avg Close $190.37 Range $159.30 - $214.73

Q2 2015

Shares 985,636 Value ($000) $215,460 Avg Close $215.27 Range $205.22 - $223.28

Q1 2015

Shares 1,271,275 Value ($000) $273,044 Avg Close $204.27 Range $185.26 - $214.40

Q4 2014

Shares 1,300,215 Value ($000) $275,958 Avg Close $192.32 Range $168.87 - $209.59

Q3 2014

Shares 1,261,058 Value ($000) $252,666 Avg Close $197.54 Range $186.21 - $207.58

Q2 2014

Shares 1,098,627 Value ($000) $225,658 Avg Close $187.17 Range $171.21 - $199.62

Q1 2014

Shares 1,114,749 Value ($000) $223,006 Avg Close $190.16 Range $175.09 - $212.40

Q4 2013

Shares 1,139,945 Value ($000) $247,231 Avg Close $193.15 Range $175.92 - $210.55

Q3 2013

Shares 1,482,951 Value ($000) $270,846 Avg Close $171.93 Range $151.62 - $183.39

Q2 2013

Shares 1,807,409 Value ($000) $296,307 Avg Close $153.14 Range $138.12 - $166.12

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	86,642	$24,977	$258.45	$230.09 - $299.69
Q3 2025	114,979	$27,414	$220.39	$194.74 - $250.14
Q2 2025	40,853	$8,039	$173.47	$139.20 - $199.47
Q1 2025	37,936	$6,374	$174.30	$151.61 - $191.09
Q4 2024	39,532	$7,310	$186.57	$173.54 - $199.47
Q3 2024	50,092	$8,906	$169.81	$152.32 - $189.75
Q2 2024	56,967	$8,900	$159.16	$147.08 - $169.59
Q1 2024	62,086	$10,398	$155.40	$145.30 - $167.84
Q4 2023	57,101	$8,646	$134.30	$120.16 - $156.31
Q3 2023	56,742	$7,396	$139.81	$129.01 - $163.83
Q2 2023	55,312	$8,291	$143.06	$135.39 - $151.92
Q1 2023	57,183	$8,144	$157.88	$132.31 - $180.50
Q4 2022	58,194	$9,220	$141.36	$108.04 - $163.24
Q3 2022	58,633	$6,558	$125.39	$109.48 - $141.92
Q2 2022	59,936	$6,989	$128.58	$112.28 - $146.71
Q1 2022	62,016	$8,741	$143.53	$121.29 - $171.22
Q4 2021	63,301	$10,414	$167.52	$146.96 - $191.42
Q3 2021	64,227	$9,704	$163.56	$146.02 - $180.77
Q2 2021	66,777	$10,298	$159.33	$147.97 - $176.63
Q1 2021	68,756	$10,247	$130.58	$98.76 - $153.37
Q4 2020	72,841	$7,408	$86.25	$66.34 - $103.21
Q3 2020	82,040	$5,610	$69.80	$62.10 - $75.77
Q2 2020	85,366	$6,365	$67.48	$53.23 - $82.32
Q1 2020	86,591	$5,121	$74.64	$44.30 - $88.80
Q4 2019	87,883	$7,447	$81.44	$70.43 - $87.94
Q3 2019	81,015	$6,753	$82.65	$73.22 - $92.84
Q2 2019	111,169	$10,243	$96.65	$82.01 - $113.84
Q1 2019	114,440	$12,258	$104.33	$93.26 - $110.96
Q4 2018	497,735	$48,499	$110.59	$86.74 - $136.36
Q3 2018	635,817	$86,929	$144.30	$133.37 - $159.64
Q2 2018	624,892	$92,903	$160.74	$145.08 - $182.71
Q1 2018	604,618	$114,623	$189.64	$169.45 - $211.08
Q4 2017	587,370	$120,558	$188.42	$173.99 - $202.01
Q3 2017	592,341	$112,444	$172.79	$161.15 - $186.54
Q2 2017	600,220	$99,552	$154.87	$144.44 - $164.19
Q1 2017	556,427	$91,221	$153.31	$135.07 - $166.39
Q4 2016	619,941	$90,077	$140.58	$126.32 - $157.66
Q3 2016	704,584	$101,953	$138.59	$126.84 - $143.96
Q2 2016	738,195	$103,916	$158.47	$126.98 - $174.12
Q1 2016	770,520	$125,132	$135.06	$112.27 - $159.84
Q4 2015	1,182,084	$188,850	$166.43	$137.16 - $184.66
Q3 2015	1,070,353	$183,020	$190.37	$159.30 - $214.73
Q2 2015	985,636	$215,460	$215.27	$205.22 - $223.28
Q1 2015	1,271,275	$273,044	$204.27	$185.26 - $214.40
Q4 2014	1,300,215	$275,958	$192.32	$168.87 - $209.59
Q3 2014	1,261,058	$252,666	$197.54	$186.21 - $207.58
Q2 2014	1,098,627	$225,658	$187.17	$171.21 - $199.62
Q1 2014	1,114,749	$223,006	$190.16	$175.09 - $212.40
Q4 2013	1,139,945	$247,231	$193.15	$175.92 - $210.55
Q3 2013	1,482,951	$270,846	$171.93	$151.62 - $183.39
Q2 2013	1,807,409	$296,307	$153.14	$138.12 - $166.12