Acadian Asset Management Inc. - Common Stock (AAMI) Institutional Ownership

13F Institutional Holders and Ownership History from Q2 2019 to Q4 2025

Type / Class
Equity / Common Stock
Symbol
AAMI on NYSE
Shares outstanding
35,355,963
Price per share
$48.47
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
35,427,751
Total reported value
$1,665,378,629
% of total 13F portfolios
0%
Share change
+500,707
Value change
+$23,455,307
Number of holders
251
Price from insider filings
$48.47
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Acadian Asset Management Inc. - Common Stock (AAMI) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
PAULSON & CO. INC. 22% $306,479,102 7,743,282 PAULSON & CO. INC. 03 Sep 2025
BlackRock, Inc. 11% -23% $113,935,282 -$34,617,734 4,230,794 -23% BlackRock, Inc. 31 Mar 2025
PRUDENTIAL FINANCIAL INC 5.9% $80,821,022 2,127,989 PRUDENTIAL FINANCIAL INC 30 Jun 2025
JENNISON ASSOCIATES LLC 5.4% +12% $89,733,434 +$8,430,860 1,909,222 +10% Jennison Associates LLC 31 Dec 2025
Azora Capital LP 4.2% -24% $42,168,771 -$12,454,910 1,565,866 -23% Azora Capital LP 31 Dec 2024
Empyrean Capital Partners, LP 4.3% $74,219,761 1,541,108 Empyrean Capital Partners, LP 30 Sep 2025

As of 31 Dec 2025, 251 institutional investors reported holding 35,427,751 shares of Acadian Asset Management Inc. - Common Stock (AAMI). This represents 100% of the company’s total 35,355,963 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of Acadian Asset Management Inc. - Common Stock (AAMI) together control 82% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
PAULSON & CO. INC. 22% 7,743,282 0% 11% $363,934,254
BlackRock, Inc. 13% 4,655,353 -2.3% 0% $218,801,606
VANGUARD GROUP INC 6.6% 2,335,363 -0.56% 0% $109,762,061
JENNISON ASSOCIATES LLC 5.4% 1,909,222 +10% 0.05% $89,733,434
Empyrean Capital Partners, LP 4% 1,404,562 -8.9% 2.3% $66,014,414
STATE STREET CORP 3.4% 1,206,244 +0.46% 0% $56,693,468
DIMENSIONAL FUND ADVISORS LP 2.6% 909,213 -4.6% 0.01% $42,734,382
Impax Asset Management Group plc 2.4% 845,451 +10% 0.25% $39,736,197
SOROS FUND MANAGEMENT LLC 2.1% 737,367 +61% 0.46% $34,656,249
GEODE CAPITAL MANAGEMENT, LLC 1.9% 685,272 +4.4% 0% $32,212,205
Nuveen, LLC 1.8% 652,144 +1.8% 0.01% $30,650,768
Woodline Partners LP 1.6% 559,091 +688% 0.1% $26,277,277
FEDERATED HERMES, INC. 1.6% 558,267 +63% 0.04% $26,238,549
MORGAN STANLEY 1.5% 532,515 +13% 0% $25,028,299
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 1.5% 514,463 -17% 0.01% $24,179,761
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 1.4% 480,306 +7% 0% $22,574,382
North Reef Capital Management LP 1.3% 443,922 -13% 0.84% $20,864,334
Invesco Ltd. 1.2% 420,606 +0.05% 0% $19,768,482
JACOBS LEVY EQUITY MANAGEMENT, INC 1.2% 419,346 +0.68% 0.08% $19,709,262
GW&K Investment Management, LLC 1.2% 413,093 +7.7% 0.17% $19,415,000
Systematic Alpha Investments, LLC 1% 370,108 0% 0.54% $17,395,080
Allspring Global Investments Holdings, LLC 1% 368,164 +27% 0.03% $17,443,610
SG Americas Securities, LLC 1% 359,613 +1415% 0.02% $16,902,000
TWO SIGMA INVESTMENTS, LP 0.8% 283,488 -7.4% 0.02% $13,323,936
NORTHERN TRUST CORP 0.79% 278,985 -3% 0% $13,112,295

Institutional Holders of Acadian Asset Management Inc. - Common Stock (AAMI) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 35,427,751 $1,665,378,629 +$23,455,307 $47.00 251
2025 Q3 35,013,780 $1,684,848,667 -$35,902,068 $48.16 247
2025 Q2 35,778,019 $1,261,010,713 +$1,582,222 $35.24 213
2025 Q1 35,912,108 $928,709,663 -$47,957,442 $25.86 190
2024 Q4 37,752,569 $994,151,709 +$13,331,289 $26.34 177
2024 Q3 37,169,720 $943,763,728 -$18,137,073 $25.40 171
2024 Q2 38,054,356 $843,690,912 -$24,328,051 $22.17 164
2024 Q1 39,168,433 $894,553,117 -$39,556,496 $22.84 168
2023 Q4 41,054,968 $786,553,389 -$2,826,463 $19.16 169
2023 Q3 41,152,021 $797,584,945 -$2,468,747 $19.39 161
2023 Q2 41,244,983 $864,213,285 -$10,762,873 $20.95 155
2023 Q1 41,626,716 $981,253,379 -$13,037,587 $23.58 163
2022 Q4 42,392,867 $872,573,361 +$4,358,738 $20.58 142
2022 Q3 42,568,813 $635,085,728 -$9,035,943 $14.91 147
2022 Q2 42,621,167 $767,406,688 -$54,429,253 $18.01 148
2022 Q1 44,183,535 $1,071,418,175 -$68,689,496 $24.25 155
2021 Q4 46,943,314 $1,202,472,473 -$832,842,752 $25.60 177
2021 Q3 79,061,517 $2,067,730,261 +$6,713,987 $26.13 175
2021 Q2 78,940,057 $1,850,838,067 -$15,155,001 $23.43 163
2021 Q1 78,922,644 $1,607,966,780 -$11,281,488 $20.38 167
2020 Q4 79,614,213 $1,534,316,832 -$27,079,923 $19.28 164
2020 Q3 80,774,043 $1,041,521,316 -$14,529,395 $12.90 150
2020 Q2 81,818,677 $1,019,438,778 +$21,132,761 $12.46 138
2020 Q1 81,768,630 $522,464,351 -$18,281,434 $6.39 119
2019 Q4 83,595,313 $854,118,808 -$31,958,648 $10.22 142
2019 Q3 86,557,980 $857,806,888 +$848,751,613 $9.91 128
2019 Q2 909,087 $10,373,700 +$10,373,700 $11.41 8