AFFILIATED MANAGERS GROUP, INC. - Common Stock (AMG)

Historical Holders from Q1 2014 to Q4 2025

Type / Class
Equity / Common Stock
Symbol
AMG on NYSE
Shares outstanding
28,334,100
Price per share
$288.28
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares as of 30 Sep 2025
26,403,105
Holdings value
$6,297,683,236
% of all portfolios
0.01%
Share change
-399,833
Value change
-$71,174,804
Average buys %
+0%
Average sells %
-0%
Number of holders
441
Price from insider filings
$259.26
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of AFFILIATED MANAGERS GROUP, INC. - Common Stock (AMG) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
VANGUARD GROUP INC 9.8% $660,882,897 2,771,811 The Vanguard Group 30 Sep 2025
MORGAN STANLEY 7% $472,898,962 1,983,387 Morgan Stanley 30 Sep 2025
Clarkston Capital Partners, LLC 5.2% $255,527,878 1,572,189 Clarkston Capital Partners, LLC 31 Dec 2024
INTEGRATED CORE STRATEGIES (US) LLC 3.6% -34% $242,510,253 -$116,590,124 1,017,113 -32% Millennium Management LLC 30 Sep 2025
As of 30 Sep 2025, AFFILIATED MANAGERS GROUP, INC. - Common Stock (AMG) has 441 institutional shareholders filing 13F forms. They hold 26,403,105 shares of 28,334,100 outstanding shares (93%) .

Top 25 institutional shareholders own 71% of the company.

Filer Ownership Nb Shares Share Change % Portfolio % Holdings Value
BlackRock, Inc. 10% 2,821,855 -0.03% 0.01% $672,814,797
VANGUARD GROUP INC 9.8% 2,772,278 -1.4% 0.01% $660,994,243
MORGAN STANLEY 6.9% 1,941,518 -3.8% 0.03% $462,916,558
ARIEL INVESTMENTS, LLC 4.5% 1,263,824 -6.7% 3.2% $301,333,556
Clarkston Capital Partners, LLC 4.3% 1,232,333 -14% 6.3% $293,825,157
Boston Partners 4.1% 1,157,344 +2.1% 0.28% $275,956,760
MILLENNIUM MANAGEMENT LLC 3.6% 1,017,113 -35% 0.19% $242,510,253
STATE STREET CORP 3.4% 963,708 -1.8% 0.01% $229,776,898
DIMENSIONAL FUND ADVISORS LP 2.4% 684,116 +1.2% 0.04% $163,113,287
CITADEL ADVISORS LLC 2.3% 645,141 +0.84% 0.12% $153,820,968
LYRICAL ASSET MANAGEMENT LP 2% 579,835 +7.6% 1.9% $138,250,059
FULLER & THALER ASSET MANAGEMENT, INC. 2% 570,275 -0.1% 0.46% $135,970,765
GEODE CAPITAL MANAGEMENT, LLC 1.8% 509,831 +1.1% 0.01% $121,581,284
LSV ASSET MANAGEMENT 1.7% 479,624 +0.71% 0.25% $114,357,000
Channing Capital Management, LLC 1.5% 425,037 -1.3% 2.7% $101,341,572
Allianz Asset Management GmbH 1.4% 393,161 +15% 0.12% $93,741,377
UBS Group AG 1.2% 350,212 +97% 0.02% $83,501,047
Balyasny Asset Management L.P. 1.2% 336,063 +7.9% 0.16% $80,127,501
NORTHERN TRUST CORP 1.2% 334,368 -0.23% 0.01% $79,723,363
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 1.1% 312,568 +0.39% 0.01% $74,525,588
Alyeska Investment Group, L.P. 1% 295,081 0.21% $70,356,163
Kiltearn Partners LLP 1% 283,814 -5.4% 14% $67,669,772
BRUNI J V & CO /CO 0.9% 254,989 -13% 6.1% $60,797,027
Holocene Advisors, LP 0.9% 253,935 +152% 0.14% $60,545,722
PRICE T ROWE ASSOCIATES INC /MD/ 0.86% 244,253 +4.3% 0.01% $58,239,000

Institutional Holders of AFFILIATED MANAGERS GROUP, INC. - Common Stock (AMG) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price Investors
2025 Q4 150,546 $43,507,196 -$1,239,036 $288.28 17
2025 Q3 26,403,105 $6,297,683,236 -$71,174,804 $238.43 441
2025 Q2 26,821,076 $5,277,536,259 -$84,552,044 $196.77 429
2025 Q1 27,306,479 $4,587,628,181 -$145,951,145 $168.03 392
2024 Q4 28,085,768 $5,193,636,087 -$37,146,826 $184.92 402
2024 Q3 28,242,165 $5,022,646,889 -$137,327,716 $177.80 415
2024 Q2 29,228,697 $4,566,839,022 -$179,986,644 $156.23 400
2024 Q1 30,357,618 $5,081,322,483 -$178,552,037 $167.47 397
2023 Q4 31,461,140 $4,763,852,793 -$11,154,607 $151.42 378
2023 Q3 31,835,853 $4,149,568,321 -$160,169,124 $130.34 351
2023 Q2 32,934,145 $4,935,947,671 -$231,274,446 $149.89 373
2023 Q1 34,481,765 $4,909,680,816 -$59,148,004 $142.42 381
2022 Q4 34,137,955 $5,409,381,533 +$201,992,929 $158.43 359
2022 Q3 36,229,129 $4,053,998,764 -$95,089,153 $111.85 313
2022 Q2 37,040,598 $4,318,576,540 -$58,258,396 $116.60 295
2022 Q1 37,733,230 $5,311,429,681 -$218,204,978 $140.95 321
2021 Q4 39,151,044 $6,438,057,146 -$164,556,122 $164.51 353
2021 Q3 39,928,917 $6,032,107,463 -$170,562,006 $151.09 324
2021 Q2 41,048,842 $6,329,674,747 -$157,575,379 $154.21 329
2021 Q1 42,090,229 $6,273,698,852 -$440,697,642 $149.03 306
2020 Q4 45,205,424 $4,597,117,191 -$72,126,508 $101.70 284
2020 Q3 45,969,550 $3,143,604,380 -$5,955,763 $68.38 264
2020 Q2 46,508,681 $3,466,955,019 -$13,902,860 $74.56 278
2020 Q1 46,784,701 $2,767,447,075 -$113,671,530 $59.14 280
2019 Q4 47,711,945 $4,040,768,672 -$45,362,983 $84.74 334
2019 Q3 49,102,123 $4,090,952,532 +$39,428,685 $83.35 339
2019 Q2 48,473,514 $4,465,537,014 -$31,880,160 $92.14 375
2019 Q1 48,891,361 $5,234,014,886 -$154,855,612 $107.11 412
2018 Q4 50,409,061 $4,906,977,103 +$53,794,751 $97.44 427
2018 Q3 49,151,455 $6,714,493,562 -$191,621,615 $136.72 475
2018 Q2 50,468,817 $7,499,570,931 -$191,203,585 $148.67 493
2018 Q1 51,531,521 $9,760,694,183 -$262,996,308 $189.58 520
2017 Q4 52,827,259 $10,835,609,440 -$175,408,484 $205.25 518
2017 Q3 53,589,907 $10,172,478,414 -$112,608,493 $189.83 477
2017 Q2 54,361,565 $9,017,611,886 +$140,994,861 $165.86 470
2017 Q1 53,956,649 $8,847,175,181 +$469,802,414 $163.94 504
2016 Q4 54,853,984 $7,971,388,132 +$66,774,045 $145.30 513
2016 Q3 53,601,357 $7,752,548,730 -$108,654,946 $144.70 487
2016 Q2 54,381,822 $7,654,720,426 +$132,371,054 $140.77 492
2016 Q1 53,349,360 $8,665,363,706 +$192,150,836 $162.40 464
2015 Q4 52,357,591 $8,364,624,405 -$11,524,045 $159.76 465
2015 Q3 52,447,025 $8,970,785,737 -$306,320,879 $170.99 476
2015 Q2 52,933,510 $11,571,421,772 -$228,468,555 $218.60 490
2015 Q1 53,987,010 $11,595,398,567 +$51,137,312 $214.78 486
2014 Q4 53,793,721 $11,415,848,919 +$180,294,979 $212.24 475
2014 Q3 54,246,431 $10,868,638,071 -$145,805,813 $200.36 463
2014 Q2 54,910,852 $11,278,073,239 +$275,675,443 $205.40 453
2014 Q1 52,825,053 $10,565,698,089 +$122,385 $200.05 446