AFFILIATED MANAGERS GROUP

Ticker: AMG CUSIP: 008252108 Class: COM

O'SHAUGHNESSY ASSET MANAGEMENT, LLC's Holding History (CIK: 0001423442)

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

Q4 2025

Shares 9,147 Value ($000) $2,637 Avg Close $258.45 Range $230.09 - $299.69

Q3 2025

Shares 7,738 Value ($000) $1,845 Avg Close $220.39 Range $194.74 - $250.14

Q2 2025

Shares 5,868 Value ($000) $1,155 Avg Close $173.47 Range $139.20 - $199.47

Q1 2025

Shares 5,434 Value ($000) $913 Avg Close $174.30 Range $151.61 - $191.09

Q4 2024

Shares 5,090 Value ($000) $941 Avg Close $186.57 Range $173.54 - $199.47

Q3 2024

Shares 4,086 Value ($000) $776 Avg Close $169.81 Range $152.32 - $189.75

Q2 2024

Shares 3,533 Value ($000) $552 Avg Close $159.16 Range $147.08 - $169.59

Q1 2024

Shares 3,261 Value ($000) $546 Avg Close $155.40 Range $145.30 - $167.84

Q4 2023

Shares 3,111 Value ($000) $471 Avg Close $134.30 Range $120.16 - $156.31

Q3 2023

Shares 4,287 Value ($000) $559 Avg Close $139.81 Range $129.01 - $163.83

Q2 2023

Shares 3,949 Value ($000) $592 Avg Close $143.06 Range $135.39 - $151.92

Q1 2023

Shares 4,006 Value ($000) $571 Avg Close $157.88 Range $132.31 - $180.50

Q4 2022

Shares 1,964 Value ($000) $311 Avg Close $141.36 Range $108.04 - $163.24

Q1 2022

Shares 3,310 Value ($000) $467 Avg Close $143.53 Range $121.29 - $171.22

Q4 2021

Shares 50,865 Value ($000) $8,368 Avg Close $167.52 Range $146.96 - $191.42

Q3 2021

Shares 71,233 Value ($000) $10,776 Avg Close $163.56 Range $146.02 - $180.77

Q2 2021

Shares 121,161 Value ($000) $18,678 Avg Close $159.33 Range $147.97 - $176.63

Q1 2021

Shares 118,179 Value ($000) $17,602 Avg Close $130.58 Range $98.76 - $153.37

Q4 2020

Shares 87,828 Value ($000) $8,931 Avg Close $86.25 Range $66.34 - $103.21

Q3 2020

Shares 104 Value ($000) $7 Avg Close $69.80 Range $62.10 - $75.77

Q4 2019

Shares 3 Value ($000) $0 Avg Close $81.44 Range $70.43 - $87.94

Q4 2014

Shares 59 Value ($000) $13 Avg Close $192.32 Range $168.87 - $209.59

Q3 2014

Shares 98 Value ($000) $20 Avg Close $197.54 Range $186.21 - $207.58

Q2 2014

Shares 98 Value ($000) $20 Avg Close $187.17 Range $171.21 - $199.62

Q1 2014

Shares 97 Value ($000) $19 Avg Close $190.16 Range $175.09 - $212.40

Q4 2013

Shares 75 Value ($000) $16 Avg Close $193.15 Range $175.92 - $210.55

Q3 2013

Shares 20 Value ($000) $4 Avg Close $171.93 Range $151.62 - $183.39

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	9,147	$2,637	$258.45	$230.09 - $299.69
Q3 2025	7,738	$1,845	$220.39	$194.74 - $250.14
Q2 2025	5,868	$1,155	$173.47	$139.20 - $199.47
Q1 2025	5,434	$913	$174.30	$151.61 - $191.09
Q4 2024	5,090	$941	$186.57	$173.54 - $199.47
Q3 2024	4,086	$776	$169.81	$152.32 - $189.75
Q2 2024	3,533	$552	$159.16	$147.08 - $169.59
Q1 2024	3,261	$546	$155.40	$145.30 - $167.84
Q4 2023	3,111	$471	$134.30	$120.16 - $156.31
Q3 2023	4,287	$559	$139.81	$129.01 - $163.83
Q2 2023	3,949	$592	$143.06	$135.39 - $151.92
Q1 2023	4,006	$571	$157.88	$132.31 - $180.50
Q4 2022	1,964	$311	$141.36	$108.04 - $163.24
Q1 2022	3,310	$467	$143.53	$121.29 - $171.22
Q4 2021	50,865	$8,368	$167.52	$146.96 - $191.42
Q3 2021	71,233	$10,776	$163.56	$146.02 - $180.77
Q2 2021	121,161	$18,678	$159.33	$147.97 - $176.63
Q1 2021	118,179	$17,602	$130.58	$98.76 - $153.37
Q4 2020	87,828	$8,931	$86.25	$66.34 - $103.21
Q3 2020	104	$7	$69.80	$62.10 - $75.77
Q4 2019	3	$0	$81.44	$70.43 - $87.94
Q4 2014	59	$13	$192.32	$168.87 - $209.59
Q3 2014	98	$20	$197.54	$186.21 - $207.58
Q2 2014	98	$20	$187.17	$171.21 - $199.62
Q1 2014	97	$19	$190.16	$175.09 - $212.40
Q4 2013	75	$16	$193.15	$175.92 - $210.55
Q3 2013	20	$4	$171.93	$151.62 - $183.39