AFFILIATED MANAGERS GROUP

Ticker: AMG CUSIP: 008252108 Class: COM

AMERICAN CENTURY COMPANIES INC's Holding History (CIK: 0000748054)

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

Q4 2025

Shares 8,694 Value ($000) $2,506 Avg Close $258.45 Range $230.09 - $299.69

Q3 2025

Shares 7,864 Value ($000) $1,875 Avg Close $220.39 Range $194.74 - $250.14

Q2 2025

Shares 8,552 Value ($000) $1,683 Avg Close $173.47 Range $139.20 - $199.47

Q1 2025

Shares 8,448 Value ($000) $1,420 Avg Close $174.30 Range $151.61 - $191.09

Q4 2024

Shares 51,002 Value ($000) $9,431 Avg Close $186.57 Range $173.54 - $199.47

Q3 2024

Shares 8,081 Value ($000) $1,437 Avg Close $169.81 Range $152.32 - $189.75

Q2 2024

Shares 7,860 Value ($000) $1,228 Avg Close $159.16 Range $147.08 - $169.59

Q1 2024

Shares 15,457 Value ($000) $2,589 Avg Close $155.40 Range $145.30 - $167.84

Q4 2023

Shares 32,665 Value ($000) $4,946 Avg Close $134.30 Range $120.16 - $156.31

Q3 2023

Shares 14,406 Value ($000) $1,878 Avg Close $139.81 Range $129.01 - $163.83

Q2 2023

Shares 90,662 Value ($000) $13,589 Avg Close $143.06 Range $135.39 - $151.92

Q1 2023

Shares 141,844 Value ($000) $20,201 Avg Close $157.88 Range $132.31 - $180.50

Q4 2022

Shares 49,018 Value ($000) $7,766 Avg Close $141.36 Range $108.04 - $163.24

Q3 2022

Shares 2,419 Value ($000) $271 Avg Close $125.39 Range $109.48 - $141.92

Q2 2022

Shares 180,318 Value ($000) $21,025 Avg Close $128.58 Range $112.28 - $146.71

Q1 2022

Shares 123,431 Value ($000) $17,398 Avg Close $143.53 Range $121.29 - $171.22

Q4 2021

Shares 157,418 Value ($000) $25,897 Avg Close $167.52 Range $146.96 - $191.42

Q3 2021

Shares 28,668 Value ($000) $4,331 Avg Close $163.56 Range $146.02 - $180.77

Q2 2021

Shares 91,385 Value ($000) $14,092 Avg Close $159.33 Range $147.97 - $176.63

Q1 2021

Shares 93,796 Value ($000) $13,978 Avg Close $130.58 Range $98.76 - $153.37

Q3 2020

Shares 3,932 Value ($000) $269 Avg Close $69.80 Range $62.10 - $75.77

Q2 2020

Shares 4,181 Value ($000) $312 Avg Close $67.48 Range $53.23 - $82.32

Q1 2020

Shares 3,654 Value ($000) $216 Avg Close $74.64 Range $44.30 - $88.80

Q4 2019

Shares 3,276 Value ($000) $278 Avg Close $81.44 Range $70.43 - $87.94

Q4 2018

Shares 3,206 Value ($000) $312 Avg Close $110.59 Range $86.74 - $136.36

Q3 2018

Shares 170,690 Value ($000) $23,337 Avg Close $144.30 Range $133.37 - $159.64

Q2 2018

Shares 547,002 Value ($000) $81,323 Avg Close $160.74 Range $145.08 - $182.71

Q1 2018

Shares 293,626 Value ($000) $55,666 Avg Close $189.64 Range $169.45 - $211.08

Q4 2017

Shares 345,722 Value ($000) $70,959 Avg Close $188.42 Range $173.99 - $202.01

Q3 2017

Shares 615,585 Value ($000) $116,857 Avg Close $172.79 Range $161.15 - $186.54

Q2 2017

Shares 694,845 Value ($000) $115,247 Avg Close $154.87 Range $144.44 - $164.19

Q1 2017

Shares 559,182 Value ($000) $91,672 Avg Close $153.31 Range $135.07 - $166.39

Q4 2016

Shares 600,083 Value ($000) $87,192 Avg Close $140.58 Range $126.32 - $157.66

Q3 2016

Shares 692,018 Value ($000) $100,135 Avg Close $138.59 Range $126.84 - $143.96

Q2 2016

Shares 801,796 Value ($000) $112,869 Avg Close $158.47 Range $126.98 - $174.12

Q1 2016

Shares 830,936 Value ($000) $134,944 Avg Close $135.06 Range $112.27 - $159.84

Q4 2015

Shares 753,377 Value ($000) $120,360 Avg Close $166.43 Range $137.16 - $184.66

Q3 2015

Shares 854,127 Value ($000) $146,047 Avg Close $190.37 Range $159.30 - $214.73

Q2 2015

Shares 738,597 Value ($000) $161,457 Avg Close $215.27 Range $205.22 - $223.28

Q1 2015

Shares 657,043 Value ($000) $141,120 Avg Close $204.27 Range $185.26 - $214.40

Q4 2014

Shares 680,299 Value ($000) $144,387 Avg Close $192.32 Range $168.87 - $209.59

Q3 2014

Shares 661,732 Value ($000) $132,585 Avg Close $197.54 Range $186.21 - $207.58

Q2 2014

Shares 816,796 Value ($000) $167,770 Avg Close $187.17 Range $171.21 - $199.62

Q1 2014

Shares 862,624 Value ($000) $172,568 Avg Close $190.16 Range $175.09 - $212.40

Q4 2013

Shares 705,212 Value ($000) $152,946 Avg Close $193.15 Range $175.92 - $210.55

Q3 2013

Shares 756,349 Value ($000) $138,140 Avg Close $171.93 Range $151.62 - $183.39

Q2 2013

Shares 626,521 Value ($000) $102,712 Avg Close $153.14 Range $138.12 - $166.12

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	8,694	$2,506	$258.45	$230.09 - $299.69
Q3 2025	7,864	$1,875	$220.39	$194.74 - $250.14
Q2 2025	8,552	$1,683	$173.47	$139.20 - $199.47
Q1 2025	8,448	$1,420	$174.30	$151.61 - $191.09
Q4 2024	51,002	$9,431	$186.57	$173.54 - $199.47
Q3 2024	8,081	$1,437	$169.81	$152.32 - $189.75
Q2 2024	7,860	$1,228	$159.16	$147.08 - $169.59
Q1 2024	15,457	$2,589	$155.40	$145.30 - $167.84
Q4 2023	32,665	$4,946	$134.30	$120.16 - $156.31
Q3 2023	14,406	$1,878	$139.81	$129.01 - $163.83
Q2 2023	90,662	$13,589	$143.06	$135.39 - $151.92
Q1 2023	141,844	$20,201	$157.88	$132.31 - $180.50
Q4 2022	49,018	$7,766	$141.36	$108.04 - $163.24
Q3 2022	2,419	$271	$125.39	$109.48 - $141.92
Q2 2022	180,318	$21,025	$128.58	$112.28 - $146.71
Q1 2022	123,431	$17,398	$143.53	$121.29 - $171.22
Q4 2021	157,418	$25,897	$167.52	$146.96 - $191.42
Q3 2021	28,668	$4,331	$163.56	$146.02 - $180.77
Q2 2021	91,385	$14,092	$159.33	$147.97 - $176.63
Q1 2021	93,796	$13,978	$130.58	$98.76 - $153.37
Q3 2020	3,932	$269	$69.80	$62.10 - $75.77
Q2 2020	4,181	$312	$67.48	$53.23 - $82.32
Q1 2020	3,654	$216	$74.64	$44.30 - $88.80
Q4 2019	3,276	$278	$81.44	$70.43 - $87.94
Q4 2018	3,206	$312	$110.59	$86.74 - $136.36
Q3 2018	170,690	$23,337	$144.30	$133.37 - $159.64
Q2 2018	547,002	$81,323	$160.74	$145.08 - $182.71
Q1 2018	293,626	$55,666	$189.64	$169.45 - $211.08
Q4 2017	345,722	$70,959	$188.42	$173.99 - $202.01
Q3 2017	615,585	$116,857	$172.79	$161.15 - $186.54
Q2 2017	694,845	$115,247	$154.87	$144.44 - $164.19
Q1 2017	559,182	$91,672	$153.31	$135.07 - $166.39
Q4 2016	600,083	$87,192	$140.58	$126.32 - $157.66
Q3 2016	692,018	$100,135	$138.59	$126.84 - $143.96
Q2 2016	801,796	$112,869	$158.47	$126.98 - $174.12
Q1 2016	830,936	$134,944	$135.06	$112.27 - $159.84
Q4 2015	753,377	$120,360	$166.43	$137.16 - $184.66
Q3 2015	854,127	$146,047	$190.37	$159.30 - $214.73
Q2 2015	738,597	$161,457	$215.27	$205.22 - $223.28
Q1 2015	657,043	$141,120	$204.27	$185.26 - $214.40
Q4 2014	680,299	$144,387	$192.32	$168.87 - $209.59
Q3 2014	661,732	$132,585	$197.54	$186.21 - $207.58
Q2 2014	816,796	$167,770	$187.17	$171.21 - $199.62
Q1 2014	862,624	$172,568	$190.16	$175.09 - $212.40
Q4 2013	705,212	$152,946	$193.15	$175.92 - $210.55
Q3 2013	756,349	$138,140	$171.93	$151.62 - $183.39
Q2 2013	626,521	$102,712	$153.14	$138.12 - $166.12