AFFILIATED MANAGERS GROUP

Ticker: AMG CUSIP: 008252108 Class: COM

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q4 2025

Shares 325,696 Value ($000) $93,892 Avg Close $258.45 Range $230.09 - $299.69

Q3 2025

Shares 334,368 Value ($000) $79,723 Avg Close $220.39 Range $194.74 - $250.14

Q2 2025

Shares 335,151 Value ($000) $65,948 Avg Close $173.47 Range $139.20 - $199.47

Q1 2025

Shares 385,292 Value ($000) $64,741 Avg Close $174.30 Range $151.61 - $191.09

Q4 2024

Shares 349,611 Value ($000) $64,650 Avg Close $186.57 Range $173.54 - $199.47

Q3 2024

Shares 322,621 Value ($000) $57,362 Avg Close $169.81 Range $152.32 - $189.75

Q2 2024

Shares 316,792 Value ($000) $49,492 Avg Close $159.16 Range $147.08 - $169.59

Q1 2024

Shares 303,940 Value ($000) $50,901 Avg Close $155.40 Range $145.30 - $167.84

Q4 2023

Shares 298,640 Value ($000) $45,220 Avg Close $134.30 Range $120.16 - $156.31

Q3 2023

Shares 308,352 Value ($000) $40,191 Avg Close $139.81 Range $129.01 - $163.83

Q2 2023

Shares 383,292 Value ($000) $57,452 Avg Close $143.06 Range $135.39 - $151.92

Q1 2023

Shares 371,817 Value ($000) $52,954 Avg Close $157.88 Range $132.31 - $180.50

Q4 2022

Shares 366,410 Value ($000) $58,050 Avg Close $141.36 Range $108.04 - $163.24

Q3 2022

Shares 351,703 Value ($000) $39,338 Avg Close $125.39 Range $109.48 - $141.92

Q2 2022

Shares 361,230 Value ($000) $42,120 Avg Close $128.58 Range $112.28 - $146.71

Q1 2022

Shares 384,144 Value ($000) $54,146 Avg Close $143.53 Range $121.29 - $171.22

Q4 2021

Shares 377,010 Value ($000) $62,022 Avg Close $167.52 Range $146.96 - $191.42

Q3 2021

Shares 372,057 Value ($000) $56,214 Avg Close $163.56 Range $146.02 - $180.77

Q2 2021

Shares 384,661 Value ($000) $59,318 Avg Close $159.33 Range $147.97 - $176.63

Q1 2021

Shares 392,091 Value ($000) $58,434 Avg Close $130.58 Range $98.76 - $153.37

Q4 2020

Shares 389,885 Value ($000) $39,652 Avg Close $86.25 Range $66.34 - $103.21

Q3 2020

Shares 389,683 Value ($000) $26,647 Avg Close $69.80 Range $62.10 - $75.77

Q2 2020

Shares 410,168 Value ($000) $30,582 Avg Close $67.48 Range $53.23 - $82.32

Q1 2020

Shares 433,957 Value ($000) $25,664 Avg Close $74.64 Range $44.30 - $88.80

Q4 2019

Shares 417,202 Value ($000) $35,354 Avg Close $81.44 Range $70.43 - $87.94

Q3 2019

Shares 569,269 Value ($000) $47,449 Avg Close $82.65 Range $73.22 - $92.84

Q2 2019

Shares 574,699 Value ($000) $52,953 Avg Close $96.65 Range $82.01 - $113.84

Q1 2019

Shares 574,346 Value ($000) $61,518 Avg Close $104.33 Range $93.26 - $110.96

Q4 2018

Shares 572,814 Value ($000) $55,814 Avg Close $110.59 Range $86.74 - $136.36

Q3 2018

Shares 567,641 Value ($000) $77,609 Avg Close $144.30 Range $133.37 - $159.64

Q2 2018

Shares 569,467 Value ($000) $84,661 Avg Close $160.74 Range $145.08 - $182.71

Q1 2018

Shares 581,488 Value ($000) $110,237 Avg Close $189.64 Range $169.45 - $211.08

Q4 2017

Shares 604,603 Value ($000) $124,095 Avg Close $188.42 Range $173.99 - $202.01

Q3 2017

Shares 625,610 Value ($000) $118,759 Avg Close $172.79 Range $161.15 - $186.54

Q2 2017

Shares 599,967 Value ($000) $99,510 Avg Close $154.87 Range $144.44 - $164.19

Q1 2017

Shares 596,687 Value ($000) $97,822 Avg Close $153.31 Range $135.07 - $166.39

Q4 2016

Shares 590,432 Value ($000) $85,789 Avg Close $140.58 Range $126.32 - $157.66

Q3 2016

Shares 710,285 Value ($000) $102,778 Avg Close $138.59 Range $126.84 - $143.96

Q2 2016

Shares 722,260 Value ($000) $101,673 Avg Close $158.47 Range $126.98 - $174.12

Q1 2016

Shares 732,478 Value ($000) $120,426 Avg Close $135.06 Range $112.27 - $159.84

Q4 2015

Shares 735,330 Value ($000) $117,477 Avg Close $166.43 Range $137.16 - $184.66

Q3 2015

Shares 792,414 Value ($000) $135,494 Avg Close $190.37 Range $159.30 - $214.73

Q2 2015

Shares 618,159 Value ($000) $135,130 Avg Close $215.27 Range $205.22 - $223.28

Q1 2015

Shares 832,913 Value ($000) $178,893 Avg Close $204.27 Range $185.26 - $214.40

Q4 2014

Shares 851,088 Value ($000) $180,635 Avg Close $192.32 Range $168.87 - $209.59

Q3 2014

Shares 828,543 Value ($000) $166,006 Avg Close $197.54 Range $186.21 - $207.58

Q2 2014

Shares 713,469 Value ($000) $146,546 Avg Close $187.17 Range $171.21 - $199.62

Q1 2014

Shares 727,117 Value ($000) $145,460 Avg Close $190.16 Range $175.09 - $212.40

Q4 2013

Shares 578,974 Value ($000) $125,569 Avg Close $193.15 Range $175.92 - $210.55

Q3 2013

Shares 577,851 Value ($000) $105,539 Avg Close $171.93 Range $151.62 - $183.39

Q2 2013

Shares 585,164 Value ($000) $95,931 Avg Close $153.14 Range $138.12 - $166.12

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	325,696	$93,892	$258.45	$230.09 - $299.69
Q3 2025	334,368	$79,723	$220.39	$194.74 - $250.14
Q2 2025	335,151	$65,948	$173.47	$139.20 - $199.47
Q1 2025	385,292	$64,741	$174.30	$151.61 - $191.09
Q4 2024	349,611	$64,650	$186.57	$173.54 - $199.47
Q3 2024	322,621	$57,362	$169.81	$152.32 - $189.75
Q2 2024	316,792	$49,492	$159.16	$147.08 - $169.59
Q1 2024	303,940	$50,901	$155.40	$145.30 - $167.84
Q4 2023	298,640	$45,220	$134.30	$120.16 - $156.31
Q3 2023	308,352	$40,191	$139.81	$129.01 - $163.83
Q2 2023	383,292	$57,452	$143.06	$135.39 - $151.92
Q1 2023	371,817	$52,954	$157.88	$132.31 - $180.50
Q4 2022	366,410	$58,050	$141.36	$108.04 - $163.24
Q3 2022	351,703	$39,338	$125.39	$109.48 - $141.92
Q2 2022	361,230	$42,120	$128.58	$112.28 - $146.71
Q1 2022	384,144	$54,146	$143.53	$121.29 - $171.22
Q4 2021	377,010	$62,022	$167.52	$146.96 - $191.42
Q3 2021	372,057	$56,214	$163.56	$146.02 - $180.77
Q2 2021	384,661	$59,318	$159.33	$147.97 - $176.63
Q1 2021	392,091	$58,434	$130.58	$98.76 - $153.37
Q4 2020	389,885	$39,652	$86.25	$66.34 - $103.21
Q3 2020	389,683	$26,647	$69.80	$62.10 - $75.77
Q2 2020	410,168	$30,582	$67.48	$53.23 - $82.32
Q1 2020	433,957	$25,664	$74.64	$44.30 - $88.80
Q4 2019	417,202	$35,354	$81.44	$70.43 - $87.94
Q3 2019	569,269	$47,449	$82.65	$73.22 - $92.84
Q2 2019	574,699	$52,953	$96.65	$82.01 - $113.84
Q1 2019	574,346	$61,518	$104.33	$93.26 - $110.96
Q4 2018	572,814	$55,814	$110.59	$86.74 - $136.36
Q3 2018	567,641	$77,609	$144.30	$133.37 - $159.64
Q2 2018	569,467	$84,661	$160.74	$145.08 - $182.71
Q1 2018	581,488	$110,237	$189.64	$169.45 - $211.08
Q4 2017	604,603	$124,095	$188.42	$173.99 - $202.01
Q3 2017	625,610	$118,759	$172.79	$161.15 - $186.54
Q2 2017	599,967	$99,510	$154.87	$144.44 - $164.19
Q1 2017	596,687	$97,822	$153.31	$135.07 - $166.39
Q4 2016	590,432	$85,789	$140.58	$126.32 - $157.66
Q3 2016	710,285	$102,778	$138.59	$126.84 - $143.96
Q2 2016	722,260	$101,673	$158.47	$126.98 - $174.12
Q1 2016	732,478	$120,426	$135.06	$112.27 - $159.84
Q4 2015	735,330	$117,477	$166.43	$137.16 - $184.66
Q3 2015	792,414	$135,494	$190.37	$159.30 - $214.73
Q2 2015	618,159	$135,130	$215.27	$205.22 - $223.28
Q1 2015	832,913	$178,893	$204.27	$185.26 - $214.40
Q4 2014	851,088	$180,635	$192.32	$168.87 - $209.59
Q3 2014	828,543	$166,006	$197.54	$186.21 - $207.58
Q2 2014	713,469	$146,546	$187.17	$171.21 - $199.62
Q1 2014	727,117	$145,460	$190.16	$175.09 - $212.40
Q4 2013	578,974	$125,569	$193.15	$175.92 - $210.55
Q3 2013	577,851	$105,539	$171.93	$151.62 - $183.39
Q2 2013	585,164	$95,931	$153.14	$138.12 - $166.12