Acadian Asset ManagementAAMI

13F holders, Q4 2025 (December 31)
256holders +6
27new positions
25sold out
9famous investors
$47.01avg. 13F price*

At the end of Q4 2025, 256 institutions reported holding Acadian Asset Management Inc. (AAMI) in their 13F filings, up 6 from Q3 2025. 27 opened new positions and 25 sold out. The largest holders were Paulson & Co. ($363.9M), BlackRock, Inc. ($218.8M) and Vanguard Group Inc. ($109.8M). 9 famous investors held it, including John Paulson (11.2% of Paulson & Co.'s portfolio), George Soros (0.6% of Soros Fund Management's portfolio) and Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio).

Company
Acadian Asset Management Inc.
CUSIP
10948W103
Latest filing quarter
Q2 2026

History

Number of 13F holders

0100200300400 Q1 2024: 168Q1 2024Q2 2024: 164Q2 2024Q3 2024: 172Q3 2024Q4 2024: 178Q4 2024Q1 2025: 191Q1 2025Q2 2025: 218Q2 2025Q3 2025: 250Q3 2025Q4 2025: 256Q4 2025Q1 2026: 256Q1 2026Q2 2026: 302Q2 2026

Total Exit/New Position Q3 2025 → Q4 2025

InstitutionsTotal Value
New Positions27$10.5M
Exits25$34.1M

All 13F filers, Q3 2025 → Q4 2025: 2,808,175 shares bought and 2,436,864 shares sold, net +371,311 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 256 holders

Paulson & Co. 11.16% No change 7,743,282 $363.9M
BlackRock, Inc. 0.00% Reduce -2.3% 4,655,353 $218.8M
Vanguard Group Inc. 0.00% Reduce -0.6% 2,335,363 $109.8M
Jennison Associates LLC 0.05% Add +10.4% 1,909,222 $89.7M
Empyrean Capital Partners, LP 2.46% Reduce -8.9% 1,404,562 $66.0M
State Street Corp. 0.00% Add +0.5% 1,206,244 $56.7M
Dimensional Fund Advisors LP 0.01% Reduce -4.6% 909,213 $42.7M
Impax Asset Management Group plc 0.25% Add +10.4% 845,451 $39.7M
Soros Fund Management 0.62% Add +61.3% 737,367 $34.7M
Geode Capital Management, LLC 0.00% Add +4.4% 685,272 $32.2M
Nuveen, LLC 0.01% Add +1.8% 652,144 $30.7M
Woodline Partners LP 0.10% Add +687.6% 559,091 $26.3M
Federated Hermes, Inc. 0.04% Add +62.9% 558,267 $26.2M
Morgan Stanley 0.00% Add +13.1% 532,515 $25.0M
Arrowstreet Capital, Limited Partnership 0.01% Reduce -16.9% 514,463 $24.2M
Charles Schwab Investment Management Inc. 0.00% Add +7.0% 480,306 $22.6M
North Reef Capital Management LP 0.84% Reduce -13.2% 443,922 $20.9M
Invesco Ltd. 0.00% Add +0.1% 420,606 $19.8M
Jacobs Levy Equity Management, Inc. 0.08% Add +0.7% 419,346 $19.7M
GW&K Investment Management, LLC 0.17% Add +7.7% 413,093 $19.4M
Allspring Global Investments Holdings, LLC 0.03% Add +27.4% 368,164 $17.4M
Systematic Alpha Investments, LLC 0.54% No change 370,108 $17.4M
SG Americas Securities, LLC 0.02% Add +1414.9% 359,613 $16.9M
Two Sigma Investments, LP 0.02% Reduce -7.5% 283,488 $13.3M
Northern Trust Corp. 0.00% Reduce -3.0% 278,985 $13.1M
Two Sigma Advisers, LP 0.03% Reduce -11.3% 274,475 $12.9M
William Blair Investment Management, LLC 0.03% Reduce -9.3% 255,086 $12.0M
Goldman Sachs Group Inc. 0.00% Reduce -4.3% 209,096 $9.8M
Bank of New York Mellon Corp 0.00% Reduce -3.1% 202,368 $9.5M
Principal Financial Group Inc. 0.00% Add +17.1% 179,642 $8.4M
FMR LLC 0.00% Add +21.6% 178,880 $8.4M
Qube Research & Technologies Ltd 0.01% Add +4.0% 171,727 $8.1M
First Trust Advisors LP 0.01% Add +3422.3% 169,315 $8.0M
JPMorgan Chase & Co. 0.00% Add +52.8% 150,602 $7.1M
Man Group plc 0.01% Add +8.9% 138,470 $6.5M
Public Sector Pension Investment Board 0.02% Add +19.0% 123,049 $5.8M
Norges Bank 0.00% — 120,700 $5.7M
D. E. Shaw & Co. 0.00% Add +30.6% 115,086 $5.4M
Algert Global LLC 0.08% Add +29.0% 114,987 $5.4M
Jupiter Asset Management Ltd. 0.04% Add +4.3% 109,796 $5.2M
Brightlight Capital Management LP 3.61% Reduce -28.1% 107,900 $5.1M
Allianz Asset Management GmbH 0.01% Add +61.1% 106,998 $5.0M
Citadel Advisors 0.00% Add +60.2% 102,471 $4.8M
Tudor Investment Corporation 0.03% Reduce -55.1% 101,163 $4.8M
Bank of America Corp. 0.00% Add +21.1% 100,306 $4.7M
Renaissance Technologies 0.01% Add +48.8% 98,328 $4.6M
UBS Group AG 0.00% Reduce -46.0% 95,075 $4.5M
AQR Capital Management 0.00% Add +20.7% 92,439 $4.3M
Millennium Management 0.00% Reduce -56.0% 88,936 $4.2M
LSV Asset Management 0.01% Reduce -2.5% 82,300 $3.9M
Ameriprise Financial Inc. 0.00% Reduce -5.0% 79,402 $3.7M
American Century Companies Inc. 0.00% Add +5.6% 77,292 $3.6M
Rhumbline Advisers 0.00% Reduce -6.4% 74,893 $3.5M
Legal & General Group Plc 0.00% Reduce -0.4% 70,835 $3.3M
Victory Capital Management Inc. 0.00% Reduce -42.4% 69,481 $3.3M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% Add +1.4% 66,621 $3.1M
Kestrel Investment Management Corp. 1.68% Reduce -3.4% 63,181 $3.0M
Teacher Retirement System of Texas 0.01% Add +2.3% 62,439 $2.9M
Nearwater Capital Markets, Ltd 0.05% No change 60,000 $2.8M
Cannell & Spears LLC 0.05% New 59,197 $2.8M
Credit Agricole S A 0.01% Add +91.6% 58,389 $2.7M
Healthcare of Ontario Pension Plan Trust Fund 0.00% New 57,770 $2.7M
Envestnet Asset Management Inc. 0.00% Add +34.4% 56,676 $2.7M
Swiss National Bank 0.00% Add +8.4% 56,526 $2.7M
Barclays PLC 0.00% Reduce -3.5% 55,444 $2.6M
Boston Partners 0.00% Reduce -1.9% 55,124 $2.6M
ExodusPoint Capital Management, LP 0.03% Add +59.2% 51,201 $2.4M
Engineers Gate Manager LP 0.03% Reduce -10.7% 50,060 $2.4M
Franklin Resources Inc. 0.00% Add +1.5% 42,986 $2.0M
Citigroup Inc. 0.00% Reduce -16.0% 42,850 $2.0M
Voleon Capital Management LP 0.04% Add +290.1% 42,370 $2.0M
BNP Paribas Financial Markets 0.00% Add +14.0% 42,187 $2.0M
State of Wisconsin Investment Board 0.00% Add +8.3% 41,130 $1.9M
Royce & Associates LP 0.02% Reduce -17.5% 39,301 $1.8M
Zacks Investment Management 0.01% Reduce -8.2% 38,749 $1.8M
Alliancebernstein L.P. 0.00% Add +7.5% 38,087 $1.8M
Dark Forest Capital Management LP 0.08% Reduce -54.8% 37,792 $1.8M
Susquehanna Portfolio Strategies, LLC 0.03% No change 35,357 $1.7M
Prudential Financial Inc. 0.00% Reduce -43.2% 32,756 $1.5M
HRT Financial LP 0.00% Add +22.1% 32,395 $1.5M
Kendall Capital Management 0.32% Add +112.9% 32,260 $1.5M
Russell Investments Group, Ltd. 0.00% Reduce -4.2% 32,131 $1.5M
Linden Thomas Advisory Services, LLC 0.14% Add +3.5% 30,077 $1.4M
Brant Point Investment Management LLC 0.34% Reduce -50.0% 30,000 $1.4M
Wells Fargo & Company 0.00% Add +78.2% 29,445 $1.4M
DGS Capital Management, LLC 0.24% Add +8.7% 29,386 $1.4M
Universal- Beteiligungs- und Servicegesellschaft mbH 0.00% Reduce -14.5% 27,967 $1.3M
California State Teachers Retirement System 0.00% Add +9.3% 27,270 $1.3M
Guggenheim Capital LLC 0.01% Add +424.4% 25,499 $1.2M
LPL Financial LLC 0.00% Reduce -3.1% 25,079 $1.2M
Creative Planning 0.00% Reduce -4.3% 24,839 $1.2M
CANADA LIFE ASSURANCE Co 0.00% Add +4.1% 24,069 $1.1M
Panagora Asset Management Inc. 0.00% Add +56.8% 23,429 $1.1M
Deutsche Bank AG 0.00% Reduce -85.0% 23,011 $1.1M
State Board of Administration of Florida Retirement System 0.00% No change 22,812 $1.1M
Martingale Asset Management L P 0.03% Reduce -29.0% 22,524 $1.1M
Concurrent Investment Advisors, LLC 0.01% Add +129.0% 22,258 $1.0M
Voloridge Investment Management, LLC 0.00% Reduce -73.0% 21,522 $1.0M
Summit Global Investments 0.06% New 21,320 $1.0M
XTX Topco Ltd 0.03% Add +3.6% 20,643 $970K
Squarepoint Ops LLC 0.00% Reduce -47.0% 20,325 $955K
MML Investors Services, LLC 0.00% Add +51.4% 19,456 $914K
Quantinno Capital Management LP 0.00% Add +16.6% 19,100 $898K
State of Alaska, Department of Revenue 0.01% Add +27.8% 18,891 $886K
Greenwich Wealth Management LLC 0.04% Reduce -0.0% 18,500 $870K
Thrivent Financial for Lutherans 0.00% Reduce -5.0% 18,158 $853K
Sei Investments Co. 0.00% Reduce -36.2% 16,993 $799K
STRS Ohio 0.00% New 15,700 $738K
T. Rowe Price Associates Inc. 0.00% Add +9.8% 15,667 $737K
MetLife Investment Management, LLC 0.00% Reduce -6.9% 15,182 $714K
Susquehanna Fundamental Investments, LLC 0.02% Add +3.2% 14,508 $682K
Bokf, NA 0.01% Reduce -0.5% 13,833 $650K
Y-Intercept (Hong Kong) Ltd 0.01% New 13,451 $632K
Illinois Municipal Retirement Fund 0.01% Reduce -13.1% 13,414 $630K
Horizon Investments, LLC 0.01% Reduce -36.9% 12,994 $611K
HSBC Holdings PLC 0.00% Reduce -51.1% 12,938 $607K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% Add +0.5% 12,462 $586K
Keybank National Association 0.00% Reduce -8.5% 12,444 $585K
Janus Henderson Group PLC 0.00% Reduce -80.8% 12,433 $585K
Intech Investment Management LLC 0.01% Add +11.0% 12,364 $581K
Manufacturers Life Insurance Company, The 0.00% Reduce -5.3% 12,201 $573K
KLP Kapitalforvaltning As 0.00% Add +6.1% 12,132 $570K
Louisiana State Employees Retirement System 0.01% Reduce -0.8% 12,100 $569K
Natixis Advisors, LLC 0.00% Add +20.0% 12,086 $568K
First Citizens Bank & Trust Co. 0.01% Reduce -0.8% 11,144 $524K
AlphaQuest LLC 0.03% Reduce -2.3% 10,941 $514K
New York State Teachers Retirement System 0.00% Reduce -22.4% 10,775 $506K
Envestnet Portfolio Solutions, Inc. 0.00% Reduce -0.6% 10,731 $504K
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% Reduce -7.9% 10,635 $500K
Brevan Howard Capital Management LP 0.01% Reduce -33.4% 9,807 $461K
Trexquant Investment LP 0.00% Reduce -79.3% 9,504 $447K
State of Wyoming 0.05% Add +5.8% 9,274 $436K
Susquehanna International Group, LLP 0.00% Reduce -21.0% 9,210 $433K
Optimist Retirement Group LLC 0.20% No change 9,175 $431K
Lido Advisors, LLC 0.00% Add +3.5% 8,922 $427K
Mangrove Partners Im, LLC 0.03% New 8,790 $413K
BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.00% Add +5583.4% 8,582 $403K
Mariner, LLC 0.00% Add +29.8% 8,495 $399K
New York State Common Retirement Fund 0.00% No change 8,475 $398K
Advisory Services Network, LLC 0.01% Add +0.5% 8,374 $394K
Yousif Capital Management, LLC 0.00% Reduce -13.1% 7,144 $386K
Anb Bank 0.15% Reduce -0.9% 8,178 $384K
Bank of Montreal 0.00% No change 8,111 $381K
Arizona State Retirement System 0.00% Reduce -0.0% 7,942 $373K
Quantbot Technologies LP 0.01% Add +819.9% 7,902 $371K
Polymer Capital Management (US) LLC 0.05% Add +6.2% 7,871 $370K
Amalgamated Bank 0.00% Reduce -0.1% 7,710 $362K
Verition Fund Management LLC 0.00% Reduce -15.9% 7,493 $352K
State of Tennessee, Department of Treasury 0.00% Reduce -73.9% 6,069 $336K
Police & Firemen's Retirement System of New Jersey 0.00% Reduce -9.5% 6,980 $328K
Teachers Retirement System of the State of Kentucky 0.00% Reduce -12.2% 6,859 $322K
PDT Partners, LLC 0.02% No change 6,797 $319K
Los Angeles Capital Management LLC 0.00% Reduce -2.3% 6,352 $316K
Commonwealth of Pennsylvania Public School Empls Retrmt SYS 0.00% Reduce -3.1% 6,542 $307K
Abacus Wealth Partners, LLC 0.03% New 6,499 $305K
Truist Financial Corp. 0.00% New 6,432 $302K
VARCOV Co. 0.12% — 6,401 $301K
Institute for Wealth Management, LLC. 0.03% Reduce -14.5% 6,170 $290K
EntryPoint Capital, LLC 0.11% New 6,097 $287K
Oregon Public Employees Retirement Fund 0.00% Add +1.7% 6,086 $286K
Cerity Partners LLC 0.00% Reduce -20.6% 5,753 $270K
Neuberger Berman Group LLC 0.00% Add +13.9% 5,745 $270K
JMN Financial LLC 0.27% — 5,687 $267K
Vident Advisory, LLC 0.00% Reduce -21.5% 5,495 $258K
Mackenzie Financial Corp. 0.00% No change 5,425 $257K
Exchange Traded Concepts, LLC 0.00% Reduce -6.8% 5,264 $247K
ProShare Advisors LLC 0.00% Add +3.2% 5,212 $245K
Jump Financial, LLC 0.00% New 5,206 $245K
EJF Capital LP 0.14% Reduce -95.6% 5,143 $242K
Voya Investment Management LLC 0.00% No change 5,068 $238K
Point72 Asset Management 0.00% New 4,948 $233K
Canada Pension Plan Investment Board 0.00% New 4,800 $226K
Swiss Life Asset Management Ltd 0.00% New 4,732 $222K
Evergreen Capital Management LLC 0.00% Reduce -21.6% 4,509 $212K
Pictet Asset Management Holding SA 0.00% Add +1.7% 4,343 $204K
Axq Capital, LP 0.05% New 4,334 $204K
Cwm, LLC 0.00% Reduce -0.5% 4,079 $192K
Ensign Peak Advisors, Inc 0.00% Reduce -57.0% 3,059 $144K
PNC Financial Services Group, Inc. 0.00% Reduce -1.1% 2,675 $126K
Kestra Advisory Services, LLC 0.00% New 2,524 $119K
Ameritas Investment Partners, Inc. 0.00% No change 2,243 $105K
Royal Bank of Canada 0.00% Reduce -92.7% 2,069 $97K
WealthCollab, LLC 0.04% No change 1,848 $87K
Quadrant Capital Group LLC 0.00% No change 1,337 $63K
GAMMA Investing LLC 0.00% Add +6.9% 1,133 $53K
Signature Equity Partners, LLC 0.03% — 1,051 $49K
Smartleaf Asset Management LLC 0.00% Add +28.9% 804 $38K
Transamerica Financial Advisors, LLC 0.00% Add +380.2% 802 $38K
Public Employees Retirement System of Ohio 0.00% Reduce -20.4% 775 $36K
EverSource Wealth Advisors, LLC 0.00% Reduce -14.1% 769 $36K
Signaturefd, LLC 0.00% Reduce -0.3% 716 $34K
US Bancorp \de 0.00% No change 633 $30K
Group One Trading LLC 0.00% New 632 $30K
Cullen/Frost Bankers, Inc. 0.00% Add +27.3% 574 $27K
Pinnacle Wealth Planning Services, Inc. 0.00% New 571 $27K
Blue Trust, Inc. 0.00% Reduce -71.9% 452 $21K
Tower Research Capital LLC (TRC) 0.00% Reduce -88.0% 383 $18K
Fifth Third Bancorp 0.00% Add +2.3% 363 $17K
Farther Finance Advisors, LLC 0.00% Add +14.7% 358 $17K
Osaic Holdings, Inc. 0.00% Reduce -2.4% 289 $14K
Nisa Investment Advisors, LLC 0.00% Reduce -19.6% 288 $14K
Bessemer Group Inc. 0.00% Add +10.8% 276 $13K
Allworth Financial LP 0.00% Add +20.7% 262 $12K
Salomon & Ludwin, LLC 0.00% Reduce -23.4% 203 $10K
Harbor Capital Advisors, Inc. 0.00% Reduce -1.8% 216 $10K
Larson Financial Group LLC 0.00% No change 212 $10K
DV Trading LLC 0.00% — 200 $9K
Hillsdale Investment Management Inc. 0.00% Reduce -99.5% 200 $9K
Sterling Capital Management LLC 0.00% Add +173.8% 178 $8K
UMB Bank, n.a. 0.00% Add +1.5% 138 $6K
Vermillion & White Wealth Management Group, LLC 0.00% No change 135 $6K
Rockefeller Capital Management L.P. 0.00% Reduce -56.8% 133 $6K
Essential Partners LLC 0.00% Reduce -22.5% 124 $6K
Versant Capital Management, Inc 0.00% No change 110 $5K
IFP Advisors, Inc 0.00% Add +122.7% 98 $5K
Rothschild Investment LLC 0.00% Add +20.0% 96 $5K
Evolution Wealth Management Inc. 0.00% New 92 $4K
Altshuler Shaham Ltd 0.00% Add +8.3% 91 $4K
MassMutual Private Wealth & Trust, FSB 0.00% No change 89 $4K
Colonial Trust Co / SC 0.00% No change 82 $4K
Parkside Financial Bank & Trust 0.00% Add +68.8% 81 $4K
CIBC Private Wealth Group LLC 0.00% Add +8.2% 79 $4K
Jones Financial Companies LLLP 0.00% Add +54.0% 77 $4K
Sound Income Strategies, LLC 0.00% New 63 $3K
Private Wealth Management Group, LLC 0.00% No change 60 $3K
Parallel Advisors, LLC 0.00% No change 58 $3K
Keystone Financial Group, Inc. 0.00% No change 45 $2K
First Horizon Corp. 0.00% No change 45 $2K
Arax Advisory Partners 0.00% Reduce -92.6% 45 $2K
Harvest Fund Management Co., Ltd 0.00% No change 37 $2K
Hantz Financial Services, Inc. 0.00% Add +74.1% 47 $2K
Torren Management, LLC 0.00% — 40 $2K
Optima Capital LLC 0.00% New 33 $2K
SageView Advisory Group, LLC 0.00% New 30 $1K
Cornerstone Planning Group LLC 0.00% Reduce -89.5% 22 $1K
Covestor Ltd 0.00% Reduce -45.8% 13 $1K
Farmers & Merchants Investments Inc. 0.00% No change 21 $987
Cornerstone Financial Management LLC 0.00% — 16 $752
Ankerstar Wealth, LLC 0.00% — 13 $611
National Bank of Canada 0.00% New 13 $611
Annis Gardner Whiting Capital Advisors, LLC 0.00% No change 10 $470
Rossby Financial, LCC 0.00% New 10 $470
Global Retirement Partners, LLC 0.00% New 9 $423
Quarry LP 0.00% Reduce -92.7% 8 $376
True Wealth Design, LLC 0.00% Reduce -70.4% 8 $376
Flagship Harbor Advisors, LLC 0.00% New 7 $329
Turning Point Benefit Group, Inc. 0.00% No change 6 $282
Clearstead Advisors, LLC 0.00% Reduce -89.7% 4 $188
Abound Wealth Management 0.00% Reduce -66.7% 4 $188
Northwestern Mutual Wealth Management Co. 0.00% No change 3 $141
SBI Securities Co., Ltd. 0.00% Reduce -93.0% 3 $141
Gilpin Wealth Management, LLC 0.00% — 2 $94
SJS Investment Consulting Inc. 0.00% New 2 $94
Caitong International Asset Management Co., Ltd 0.00% Reduce -98.8% 2 $94
MAI Capital Management 0.00% New 1 $47
Avion Wealth 0.00% No change 13 $0

"% of holder's portfolio" is AAMI's weight in each manager's 13F, not the share of Acadian Asset Management Inc. the manager owns.