AFFILIATED MANAGERS GROUP

Ticker: AMG CUSIP: 008252108 Class: COM

OPPENHEIMER ASSET MANAGEMENT INC.'s Holding History (CIK: 0001269119)

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

Q3 2025

Shares 15,728 Value ($000) $3,750 Avg Close $220.39 Range $194.74 - $250.14

Q2 2025

Shares 17,619 Value ($000) $3,467 Avg Close $173.47 Range $139.20 - $199.47

Q1 2025

Shares 18,078 Value ($000) $3,038 Avg Close $174.30 Range $151.61 - $191.09

Q4 2024

Shares 19,439 Value ($000) $3,595 Avg Close $186.57 Range $173.54 - $199.47

Q3 2024

Shares 21,052 Value ($000) $3,743 Avg Close $169.81 Range $152.32 - $189.75

Q2 2024

Shares 21,729 Value ($000) $3,395 Avg Close $159.16 Range $147.08 - $169.59

Q1 2024

Shares 23,739 Value ($000) $3,976 Avg Close $155.40 Range $145.30 - $167.84

Q4 2023

Shares 25,111 Value ($000) $3,802 Avg Close $134.30 Range $120.16 - $156.31

Q3 2023

Shares 23,771 Value ($000) $3,098 Avg Close $139.81 Range $129.01 - $163.83

Q2 2023

Shares 24,494 Value ($000) $3,671 Avg Close $143.06 Range $135.39 - $151.92

Q1 2023

Shares 25,905 Value ($000) $3,689 Avg Close $157.88 Range $132.31 - $180.50

Q4 2022

Shares 27,117 Value ($000) $4,296 Avg Close $141.36 Range $108.04 - $163.24

Q3 2022

Shares 29,197 Value ($000) $3,266 Avg Close $125.39 Range $109.48 - $141.92

Q2 2022

Shares 26,725 Value ($000) $3,115 Avg Close $128.58 Range $112.28 - $146.71

Q1 2022

Shares 23,681 Value ($000) $3,338 Avg Close $143.53 Range $121.29 - $171.22

Q4 2021

Shares 26,705 Value ($000) $4,393 Avg Close $167.52 Range $146.96 - $191.42

Q3 2021

Shares 28,477 Value ($000) $4,303 Avg Close $163.56 Range $146.02 - $180.77

Q2 2021

Shares 27,337 Value ($000) $4,215 Avg Close $159.33 Range $147.97 - $176.63

Q1 2021

Shares 182,058 Value ($000) $27,133 Avg Close $130.58 Range $98.76 - $153.37

Q4 2020

Shares 397,356 Value ($000) $40,411 Avg Close $86.25 Range $66.34 - $103.21

Q3 2020

Shares 411,295 Value ($000) $28,125 Avg Close $69.80 Range $62.10 - $75.77

Q2 2020

Shares 431,974 Value ($000) $32,208 Avg Close $67.48 Range $53.23 - $82.32

Q1 2020

Shares 468,408 Value ($000) $27,702 Avg Close $74.64 Range $44.30 - $88.80

Q4 2019

Shares 11,211 Value ($000) $950 Avg Close $81.44 Range $70.43 - $87.94

Q3 2019

Shares 11,192 Value ($000) $932 Avg Close $82.65 Range $73.22 - $92.84

Q2 2019

Shares 9,395 Value ($000) $865 Avg Close $96.65 Range $82.01 - $113.84

Q1 2019

Shares 6,225 Value ($000) $666 Avg Close $104.33 Range $93.26 - $110.96

Q4 2018

Shares 2,908 Value ($000) $283 Avg Close $110.59 Range $86.74 - $136.36

Q3 2018

Shares 4,850 Value ($000) $663 Avg Close $144.30 Range $133.37 - $159.64

Q2 2018

Shares 5,152 Value ($000) $766 Avg Close $160.74 Range $145.08 - $182.71

Q1 2018

Shares 5,258 Value ($000) $997 Avg Close $189.64 Range $169.45 - $211.08

Q4 2017

Shares 6,377 Value ($000) $1,210 Avg Close $188.42 Range $173.99 - $202.01

Q3 2017

Shares 6,377 Value ($000) $1,210 Avg Close $172.79 Range $161.15 - $186.54

Q2 2017

Shares 6,590 Value ($000) $1,094 Avg Close $154.87 Range $144.44 - $164.19

Q1 2017

Shares 7,593 Value ($000) $1,244 Avg Close $153.31 Range $135.07 - $166.39

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	15,728	$3,750	$220.39	$194.74 - $250.14
Q2 2025	17,619	$3,467	$173.47	$139.20 - $199.47
Q1 2025	18,078	$3,038	$174.30	$151.61 - $191.09
Q4 2024	19,439	$3,595	$186.57	$173.54 - $199.47
Q3 2024	21,052	$3,743	$169.81	$152.32 - $189.75
Q2 2024	21,729	$3,395	$159.16	$147.08 - $169.59
Q1 2024	23,739	$3,976	$155.40	$145.30 - $167.84
Q4 2023	25,111	$3,802	$134.30	$120.16 - $156.31
Q3 2023	23,771	$3,098	$139.81	$129.01 - $163.83
Q2 2023	24,494	$3,671	$143.06	$135.39 - $151.92
Q1 2023	25,905	$3,689	$157.88	$132.31 - $180.50
Q4 2022	27,117	$4,296	$141.36	$108.04 - $163.24
Q3 2022	29,197	$3,266	$125.39	$109.48 - $141.92
Q2 2022	26,725	$3,115	$128.58	$112.28 - $146.71
Q1 2022	23,681	$3,338	$143.53	$121.29 - $171.22
Q4 2021	26,705	$4,393	$167.52	$146.96 - $191.42
Q3 2021	28,477	$4,303	$163.56	$146.02 - $180.77
Q2 2021	27,337	$4,215	$159.33	$147.97 - $176.63
Q1 2021	182,058	$27,133	$130.58	$98.76 - $153.37
Q4 2020	397,356	$40,411	$86.25	$66.34 - $103.21
Q3 2020	411,295	$28,125	$69.80	$62.10 - $75.77
Q2 2020	431,974	$32,208	$67.48	$53.23 - $82.32
Q1 2020	468,408	$27,702	$74.64	$44.30 - $88.80
Q4 2019	11,211	$950	$81.44	$70.43 - $87.94
Q3 2019	11,192	$932	$82.65	$73.22 - $92.84
Q2 2019	9,395	$865	$96.65	$82.01 - $113.84
Q1 2019	6,225	$666	$104.33	$93.26 - $110.96
Q4 2018	2,908	$283	$110.59	$86.74 - $136.36
Q3 2018	4,850	$663	$144.30	$133.37 - $159.64
Q2 2018	5,152	$766	$160.74	$145.08 - $182.71
Q1 2018	5,258	$997	$189.64	$169.45 - $211.08
Q4 2017	6,377	$1,210	$188.42	$173.99 - $202.01
Q3 2017	6,377	$1,210	$172.79	$161.15 - $186.54
Q2 2017	6,590	$1,094	$154.87	$144.44 - $164.19
Q1 2017	7,593	$1,244	$153.31	$135.07 - $166.39