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
-$71,174,802
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% $248,138,590 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 -$71,174,802 $238.43 441
2025 Q2 26,821,076 $5,277,536,259 -$84,552,041 $196.77 429
2025 Q1 27,296,144 $4,585,891,852 -$145,951,287 $168.03 391
2024 Q4 28,076,314 $5,191,887,063 +$33,933,110 $184.92 400
2024 Q3 27,856,069 $4,953,998,820 -$198,235,453 $177.80 414
2024 Q2 29,231,919 $4,567,342,679 -$115,794,823 $156.23 401
2024 Q1 29,950,321 $5,013,112,530 -$224,261,536 $167.47 397
2023 Q4 47,481 $7,189,572 -$1,488,459 $151.42 4
2023 Q3 31,453,857 $4,099,779,029 -$155,187,620 $130.34 350
2023 Q2 32,531,590 $4,875,608,797 -$401,237,826 $149.89 372
2023 Q1 34,073,325 $4,851,489,737 -$59,524,905 $142.42 378
2022 Q4 34,114,173 $5,405,614,863 +$200,710,875 $158.43 356
2022 Q3 35,874,242 $4,014,304,040 -$91,043,578 $111.85 306
2022 Q2 36,310,537 $4,226,248,942 -$85,999,410 $116.60 288
2022 Q1 36,688,791 $5,164,169,891 -$199,579,428 $140.95 315
2021 Q4 39,110,906 $6,431,446,872 -$207,050,794 $164.51 346
2021 Q3 39,931,117 $6,032,368,519 -$169,014,852 $151.09 325
2021 Q2 41,026,691 $6,326,189,391 -$158,988,080 $154.21 329
2021 Q1 42,017,945 $6,262,830,180 -$439,736,739 $149.03 306
2020 Q4 45,205,292 $4,597,103,767 -$71,498,787 $101.70 282
2020 Q3 45,962,358 $3,143,113,986 -$5,321,335 $68.38 258
2020 Q2 46,497,956 $3,466,153,686 -$15,025,471 $74.56 274
2020 Q1 46,686,632 $2,761,556,064 -$102,176,450 $59.14 271
2019 Q4 47,577,125 $4,029,344,436 -$47,438,200 $84.74 327
2019 Q3 49,029,153 $4,084,872,532 +$134,635,300 $83.35 335
2019 Q2 46,878,595 $4,318,582,014 -$92,998,403 $92.14 369
2019 Q1 48,224,218 $5,162,564,886 -$126,425,506 $107.11 407
2018 Q4 49,476,234 $4,816,092,103 +$59,155,523 $97.44 421
2018 Q3 49,064,469 $6,702,601,762 -$187,350,623 $136.72 469
2018 Q2 50,369,176 $7,484,765,131 -$149,919,983 $148.67 487
2018 Q1 51,385,217 $9,732,958,983 -$268,529,131 $189.58 517
2017 Q4 52,629,709 $10,795,065,440 -$174,459,017 $205.25 514
2017 Q3 53,549,775 $10,164,862,214 -$112,548,816 $189.83 475
2017 Q2 54,305,977 $9,008,393,486 +$156,715,555 $165.86 467
2017 Q1 53,892,182 $8,836,607,581 +$468,815,071 $163.94 499
2016 Q4 54,723,478 $7,951,673,683 +$58,260,554 $145.30 509
2016 Q3 53,542,428 $7,743,311,730 -$96,801,511 $144.70 484
2016 Q2 54,297,743 $7,642,884,426 +$135,343,175 $140.77 488
2016 Q1 53,297,921 $8,657,010,706 +$192,302,668 $162.40 459
2015 Q4 52,335,980 $8,360,741,405 -$37,112,997 $159.76 462
2015 Q3 51,144,925 $8,748,136,737 -$126,847,399 $170.99 472
2015 Q2 51,914,491 $11,348,665,772 -$267,104,879 $218.60 486
2015 Q1 53,054,379 $11,395,089,175 +$48,735,763 $214.78 486
2014 Q4 53,758,141 $11,408,297,919 +$160,813,360 $212.24 472
2014 Q3 53,983,622 $10,815,981,071 -$150,569,243 $200.36 461
2014 Q2 54,462,676 $11,186,067,239 +$236,235,661 $205.40 453
2014 Q1 52,443,549 $10,489,378,301 -$17,615,603 $200.05 443