Acadian Asset ManagementAAMI

13F holders, Q3 2025 (September 30)
250holders +32
51new positions
20sold out
8famous investors
$48.12avg. 13F price*

At the end of Q3 2025, 250 institutions reported holding Acadian Asset Management Inc. (AAMI) in their 13F filings, up 32 from Q2 2025. 51 opened new positions and 20 sold out. The largest holders were Paulson & Co. ($372.9M), BlackRock, Inc. ($229.4M) and Vanguard Group Inc. ($113.1M). 8 famous investors held it, including John Paulson (12.6% of Paulson & Co.'s portfolio), George Soros (0.5% of Soros Fund Management's portfolio) and Paul Tudor Jones (0.1% 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 Q2 2025 → Q3 2025

InstitutionsTotal Value
New Positions51$79.4M
Exits20$10.2M

All 13F filers, Q2 2025 → Q3 2025: 3,494,486 shares bought and 4,299,196 shares sold, net −804,710 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 250 holders

Paulson & Co. 12.56% Reduce -13.5% 7,743,282 $372.9M
BlackRock, Inc. 0.00% Reduce -6.5% 4,762,717 $229.4M
Vanguard Group Inc. 0.00% Reduce -1.4% 2,348,586 $113.1M
Jennison Associates LLC 0.05% Reduce -17.3% 1,729,842 $83.3M
Empyrean Capital Partners, LP 3.32% Reduce -18.1% 1,541,108 $74.2M
State Street Corp. 0.00% Reduce -1.1% 1,200,703 $57.8M
Dimensional Fund Advisors LP 0.01% Reduce -2.4% 953,382 $45.9M
Impax Asset Management Group plc 0.22% Reduce -23.4% 765,484 $36.9M
Geode Capital Management, LLC 0.00% Add +4.6% 656,190 $31.6M
Nuveen, LLC 0.01% Add +1.4% 640,554 $30.8M
Arrowstreet Capital, Limited Partnership 0.02% Add +1.4% 619,344 $29.8M
North Reef Capital Management LP 1.15% Add +6.5% 511,452 $24.6M
Morgan Stanley 0.00% Add +4.9% 470,764 $22.7M
Soros Fund Management 0.50% Add +10.0% 457,128 $22.0M
Charles Schwab Investment Management Inc. 0.00% Add +15.2% 448,961 $21.6M
Invesco Ltd. 0.00% Add +72.1% 420,414 $20.2M
Jacobs Levy Equity Management, Inc. 0.08% New 416,498 $20.1M
GW&K Investment Management, LLC 0.16% New 383,707 $18.5M
Systematic Alpha Investments, LLC 0.59% No change 370,108 $17.8M
Federated Hermes, Inc. 0.03% Add +18.0% 342,621 $16.5M
Two Sigma Advisers, LP 0.03% Reduce -12.0% 309,575 $14.9M
Two Sigma Investments, LP 0.02% Add +24.5% 306,296 $14.8M
Northern Trust Corp. 0.00% Reduce -5.1% 287,752 $13.9M
William Blair Investment Management, LLC 0.04% Reduce -60.5% 281,318 $13.5M
Allspring Global Investments Holdings, LLC 0.02% Add +37.4% 289,038 $13.4M
Amundi 0.00% New 252,410 $11.4M
Tudor Investment Corporation 0.07% Add +42.6% 225,579 $10.9M
Goldman Sachs Group Inc. 0.00% Add +59.5% 218,586 $10.5M
Bank of New York Mellon Corp 0.00% Reduce -7.3% 208,778 $10.1M
Millennium Management 0.01% Add +1308.3% 202,285 $9.7M
UBS Group AG 0.00% Reduce -23.6% 176,236 $8.5M
Qube Research & Technologies Ltd 0.01% Add +34.2% 165,135 $8.0M
Deutsche Bank AG 0.00% Reduce -5.1% 153,726 $7.4M
Jane Street Group, LLC 0.01% Add +926.0% 153,464 $7.4M
Principal Financial Group Inc. 0.00% Add +15.2% 153,462 $7.4M
Brightlight Capital Management LP 4.37% Reduce -24.9% 150,100 $7.2M
FMR LLC 0.00% Add +51.7% 147,158 $7.1M
Man Group plc 0.01% Add +19.6% 127,151 $6.1M
Victory Capital Management Inc. 0.00% Reduce -59.5% 120,655 $5.8M
EJF Capital LP 3.25% Reduce -7.3% 116,043 $5.6M
Jupiter Asset Management Ltd. 0.04% Add +56.8% 105,232 $5.1M
Public Sector Pension Investment Board 0.02% Reduce -9.8% 103,369 $5.0M
JPMorgan Chase & Co. 0.00% Reduce -50.1% 98,573 $4.7M
Informed Momentum Co LLC 0.54% Reduce -4.8% 99,149 $4.7M
Algert Global LLC 0.07% Add +28.7% 89,107 $4.3M
D. E. Shaw & Co. 0.00% Reduce -10.6% 88,095 $4.2M
LSV Asset Management 0.01% Add +8.5% 84,400 $4.1M
Ameriprise Financial Inc. 0.00% Reduce -22.2% 83,547 $4.0M
Dark Forest Capital Management LP 0.15% Add +145.4% 83,543 $4.0M
Bank of America Corp. 0.00% Reduce -15.8% 82,799 $4.0M
Rhumbline Advisers 0.00% Reduce -2.1% 80,044 $3.9M
Voloridge Investment Management, LLC 0.01% Add +412.7% 79,591 $3.8M
AQR Capital Management 0.00% Add +14.9% 76,608 $3.7M
American Century Companies Inc. 0.00% Add +45.5% 73,210 $3.5M
Legal & General Group Plc 0.00% Reduce -3.2% 71,106 $3.4M
Woodline Partners LP 0.02% New 70,982 $3.4M
Allianz Asset Management GmbH 0.00% Add +100.3% 66,430 $3.2M
Renaissance Technologies 0.00% Reduce -33.9% 66,100 $3.2M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% Reduce -47.7% 65,716 $3.2M
Kestrel Investment Management Corp. 1.77% No change 65,381 $3.1M
Janus Henderson Group PLC 0.00% Add +420.8% 64,750 $3.1M
Citadel Advisors 0.00% Reduce -44.7% 63,953 $3.1M
Teacher Retirement System of Texas 0.01% Reduce -2.6% 61,043 $2.9M
Brant Point Investment Management LLC 0.64% Add +127.2% 60,000 $2.9M
Nearwater Capital Markets, Ltd 0.04% New 60,000 $2.9M
Prudential Financial Inc. 0.00% Add +104.8% 57,676 $2.8M
Barclays PLC 0.00% Reduce -16.8% 57,452 $2.8M
Boston Partners 0.00% Add +14.5% 56,188 $2.7M
Engineers Gate Manager LP 0.03% Add +95.5% 56,028 $2.7M
Swiss National Bank 0.00% Reduce -1.9% 52,126 $2.5M
Prelude Capital Management, LLC 0.19% Reduce -18.4% 51,179 $2.5M
Citigroup Inc. 0.00% Add +105.9% 51,031 $2.5M
Cubist Systematic Strategies, LLC 0.03% Add +626.2% 48,025 $2.3M
Royce & Associates LP 0.02% Reduce -9.2% 47,652 $2.3M
Trexquant Investment LP 0.02% New 45,977 $2.2M
Franklin Resources Inc. 0.00% Add +14.2% 42,333 $2.0M
Zacks Investment Management 0.02% New 42,207 $2.0M
Envestnet Asset Management Inc. 0.00% New 42,186 $2.0M
Squarepoint Ops LLC 0.00% New 38,380 $1.8M
State of Wisconsin Investment Board 0.00% Add +329.4% 37,997 $1.8M
BNP Paribas Financial Markets 0.00% Add +53.3% 37,014 $1.8M
Hillsdale Investment Management Inc. 0.05% Reduce -40.0% 36,100 $1.7M
Alliancebernstein L.P. 0.00% Reduce -1.7% 35,426 $1.7M
Susquehanna Portfolio Strategies, LLC 0.03% No change 35,357 $1.7M
Russell Investments Group, Ltd. 0.00% Add +1116.1% 33,541 $1.6M
Universal- Beteiligungs- und Servicegesellschaft mbH 0.00% Add +220.0% 32,726 $1.6M
ExodusPoint Capital Management, LP 0.02% New 32,160 $1.5M
Martingale Asset Management L P 0.04% Add +6.1% 31,728 $1.5M
Credit Agricole S A 0.00% — 30,479 $1.5M
Linden Thomas Advisory Services, LLC 0.14% Add +4.4% 29,066 $1.4M
Royal Bank of Canada 0.00% Add +881.3% 28,370 $1.4M
DGS Capital Management, LLC 0.24% Add +2.9% 27,027 $1.3M
Sei Investments Co. 0.00% Reduce -12.8% 26,635 $1.3M
HRT Financial LP 0.00% New 26,521 $1.3M
HSBC Holdings PLC 0.00% Reduce -12.5% 26,470 $1.3M
Creative Planning 0.00% Add +11.9% 25,956 $1.3M
LPL Financial LLC 0.00% Reduce -0.6% 25,872 $1.2M
Integrated Quantitative Investments LLC 0.34% New 25,118 $1.2M
WINTON GROUP Ltd 0.05% Add +328.3% 25,057 $1.2M
California State Teachers Retirement System 0.00% Reduce -8.5% 24,959 $1.2M
SG Americas Securities, LLC 0.00% New 23,739 $1.1M
CANADA LIFE ASSURANCE Co 0.00% No change 23,126 $1.1M
State of Tennessee, Department of Treasury 0.00% Reduce -24.5% 23,241 $1.1M
State Board of Administration of Florida Retirement System 0.00% No change 22,812 $1.1M
Round Rock Advisors LLC 0.17% New 22,778 $1.1M
AXA Investment Managers S.A. 0.00% — 20,643 $994K
Horizon Investments, LLC 0.01% Add +25.8% 20,603 $992K
XTX Topco Ltd 0.05% Reduce -34.1% 19,933 $960K
Thrivent Financial for Lutherans 0.00% Reduce -3.1% 19,119 $921K
Greenwich Wealth Management LLC 0.04% Add +0.0% 18,501 $891K
Wells Fargo & Company 0.00% Add +14.9% 16,522 $796K
Quantinno Capital Management LP 0.00% Add +16.6% 16,377 $789K
MetLife Investment Management, LLC 0.00% No change 16,309 $785K
Quadrature Capital Ltd 0.01% New 16,012 $771K
Illinois Municipal Retirement Fund 0.01% Add +5.4% 15,435 $743K
Kendall Capital Management 0.16% Add +49.6% 15,150 $730K
Panagora Asset Management Inc. 0.00% New 14,947 $720K
State of Alaska, Department of Revenue 0.01% Reduce -7.6% 14,778 $711K
Brevan Howard Capital Management LP 0.01% Add +108.4% 14,721 $709K
T. Rowe Price Associates Inc. 0.00% Add +4.4% 14,275 $688K
Susquehanna Fundamental Investments, LLC 0.03% Reduce -24.1% 14,058 $677K
Bokf, NA 0.01% Reduce -0.1% 13,907 $670K
New York State Teachers Retirement System 0.00% Reduce -3.2% 13,895 $669K
Keybank National Association 0.00% Reduce -11.2% 13,600 $655K
Manufacturers Life Insurance Company, The 0.00% Add +26.1% 12,880 $620K
MML Investors Services, LLC 0.00% New 12,853 $619K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% Reduce -18.8% 12,401 $597K
Louisiana State Employees Retirement System 0.01% Reduce -2.4% 12,200 $588K
Susquehanna International Group, LLP 0.00% Reduce -83.7% 11,652 $561K
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% Add +31.2% 11,550 $556K
KLP Kapitalforvaltning As 0.00% Reduce -36.6% 11,432 $551K
First Citizens Bank & Trust Co. 0.01% Reduce -4.3% 11,228 $541K
AlphaQuest LLC 0.04% Reduce -8.5% 11,202 $539K
Intech Investment Management LLC 0.00% Reduce -1.8% 11,141 $537K
Voleon Capital Management LP 0.01% New 10,861 $523K
Envestnet Portfolio Solutions, Inc. 0.00% Reduce -4.5% 10,800 $520K
Natixis Advisors, LLC 0.00% New 10,068 $485K
Weiss Asset Management LP 0.01% New 9,996 $481K
Concurrent Investment Advisors, LLC 0.01% New 9,718 $468K
Connor, Clark & Lunn Investment Management Ltd. 0.00% Reduce -74.1% 9,613 $463K
Optimist Retirement Group LLC 0.20% Reduce -17.4% 9,175 $442K
Verition Fund Management LLC 0.00% Reduce -51.6% 8,907 $429K
State of Wyoming 0.05% Add +47.3% 8,763 $422K
Lido Advisors, LLC 0.00% Add +12.8% 8,624 $415K
New York State Common Retirement Fund 0.00% No change 8,475 $408K
Advisory Services Network, LLC 0.01% Reduce -34.6% 8,332 $401K
Anb Bank 0.16% Reduce -2.1% 8,250 $397K
Yousif Capital Management, LLC 0.00% Reduce -19.5% 8,222 $396K
Bank of Montreal 0.00% Add +18.9% 8,111 $391K
Arizona State Retirement System 0.00% Reduce -2.1% 7,945 $383K
Teachers Retirement System of the State of Kentucky 0.00% Reduce -27.4% 7,809 $376K
Amalgamated Bank 0.00% Add +0.7% 7,714 $372K
Police & Firemen's Retirement System of New Jersey 0.00% Add +15.2% 7,710 $371K
Magnetar Financial LLC 0.00% Reduce -17.5% 7,659 $369K
Freestone Grove Partners LP 0.00% New 7,632 $368K
Polymer Capital Management (US) LLC 0.05% Reduce -42.8% 7,412 $357K
Entropy Technologies, LP 0.03% New 7,298 $351K
Cerity Partners LLC 0.00% New 7,250 $349K
Institute for Wealth Management, LLC. 0.04% Reduce -15.8% 7,220 $348K
Ensign Peak Advisors, Inc 0.00% Reduce -42.9% 7,109 $342K
Vident Advisory, LLC 0.00% Reduce -68.6% 7,002 $337K
PDT Partners, LLC 0.02% Reduce -25.1% 6,797 $327K
Commonwealth of Pennsylvania Public School Empls Retrmt SYS 0.00% Reduce -2.1% 6,749 $325K
Mariner, LLC 0.00% New 6,546 $315K
Los Angeles Capital Management LLC 0.00% New 6,504 $313K
Navellier & Associates Inc. 0.03% New 6,446 $310K
DRW Securities, LLC 0.02% New 6,259 $304K
Oregon Public Employees Retirement Fund 0.00% Reduce -3.2% 5,986 $288K
Evergreen Capital Management LLC 0.01% New 5,755 $277K
Exchange Traded Concepts, LLC 0.00% Reduce -89.4% 5,648 $272K
Aigen Investment Management, LP 0.04% New 5,546 $267K
Mackenzie Financial Corp. 0.00% New 5,425 $261K
O'shaughnessy Asset Management, LLC 0.00% New 5,287 $255K
Gsa Capital Partners LLP 0.02% New 5,278 $254K
Voya Investment Management LLC 0.00% Reduce -87.7% 5,068 $244K
ProShare Advisors LLC 0.00% Reduce -18.4% 5,051 $243K
Neuberger Berman Group LLC 0.00% New 5,044 $243K
Guggenheim Capital LLC 0.00% New 4,862 $234K
First Trust Advisors LP 0.00% New 4,807 $232K
R Squared Ltd 0.10% Reduce -23.4% 4,731 $228K
Scotia Capital Inc. 0.00% New 4,478 $216K
Pictet Asset Management Holding SA 0.00% Reduce -30.7% 4,270 $206K
Cwm, LLC 0.00% Add +162.9% 4,101 $198K
Tower Research Capital LLC (TRC) 0.00% Reduce -3.2% 3,193 $154K
Point72 (DIFC) Ltd 0.01% Add +83.5% 2,945 $142K
PNC Financial Services Group, Inc. 0.00% Reduce -7.2% 2,705 $130K
Ameritas Investment Partners, Inc. 0.00% Reduce -17.2% 2,243 $108K
WealthCollab, LLC 0.04% No change 1,848 $89K
Blue Trust, Inc. 0.00% No change 1,606 $77K
Shell Asset Management Co. 0.01% Reduce -65.8% 1,521 $73K
Quadrant Capital Group LLC 0.00% New 1,337 $64K
Cornerstone Planning Group LLC 0.01% Add +854.5% 210 $52K
GAMMA Investing LLC 0.00% No change 1,060 $51K
Public Employees Retirement System of Ohio 0.00% Reduce -22.2% 973 $47K
EverSource Wealth Advisors, LLC 0.00% Add +3.1% 895 $43K
Quantbot Technologies LP 0.00% Reduce -93.1% 859 $41K
Signaturefd, LLC 0.00% Add +1.1% 718 $35K
Smartleaf Asset Management LLC 0.00% Add +19.5% 624 $31K
US Bancorp \de 0.00% Add +2.4% 633 $30K
Arax Advisory Partners 0.00% Add +586.5% 611 $29K
Principal Securities, Inc. 0.00% New 556 $27K
Cullen/Frost Bankers, Inc. 0.00% New 451 $22K
Nisa Investment Advisors, LLC 0.00% Add +36.6% 358 $17K
Fifth Third Bancorp 0.00% Add +2.0% 355 $17K
Simplex Trading, LLC 0.00% Add +17500.0% 352 $16K
Farther Finance Advisors, LLC 0.00% Add +31.1% 312 $15K
Rockefeller Capital Management L.P. 0.00% New 308 $15K
Osaic Holdings, Inc. 0.00% Reduce -0.7% 296 $15K
Bessemer Group Inc. 0.00% Add +29.7% 249 $13K
Salomon & Ludwin, LLC 0.00% New 265 $12K
Harbor Capital Advisors, Inc. 0.00% Reduce -27.9% 220 $11K
Allworth Financial LP 0.00% Add +79.3% 217 $10K
Larson Financial Group LLC 0.00% Add +371.1% 212 $10K
Caitong International Asset Management Co., Ltd 0.01% Add +165.1% 167 $8K
Transamerica Financial Advisors, LLC 0.00% New 167 $8K
Essential Partners LLC 0.00% Add +700.0% 160 $8K
BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.00% New 151 $7K
UMB Bank, n.a. 0.00% Add +21.4% 136 $7K
Vermillion & White Wealth Management Group, LLC 0.00% No change 135 $7K
Quarry LP 0.00% Add +189.5% 110 $5K
Versant Capital Management, Inc 0.00% No change 110 $5K
MassMutual Private Wealth & Trust, FSB 0.00% No change 89 $4K
Altshuler Shaham Ltd 0.00% Reduce -39.1% 84 $4K
Colonial Trust Co / SC 0.00% No change 82 $4K
Rothschild Investment LLC 0.00% Reduce -20.0% 80 $4K
CIBC Private Wealth Group LLC 0.00% No change 73 $4K
Sterling Capital Management LLC 0.00% Reduce -3.0% 65 $3K
Private Wealth Management Group, LLC 0.00% No change 60 $3K
Parallel Advisors, LLC 0.00% Add +28.9% 58 $3K
Jones Financial Companies LLLP 0.00% No change 50 $2K
Parkside Financial Bank & Trust 0.00% No change 48 $2K
Wealthspire Advisors, LLC 0.00% New 47 $2K
Keystone Financial Group, Inc. 0.00% No change 45 $2K
First Horizon Corp. 0.00% — 45 $2K
IFP Advisors, Inc 0.00% Add +10.0% 44 $2K
SBI Securities Co., Ltd. 0.00% Add +2050.0% 43 $2K
Harvest Fund Management Co., Ltd 0.00% Reduce -11.9% 37 $2K
Clearstead Advisors, LLC 0.00% New 39 $2K
Accredited Investors Inc. 0.00% New 33 $2K
Clearstead Trust, LLC 0.00% No change 32 $2K
True Wealth Design, LLC 0.00% Add +237.5% 27 $1K
Point72 Europe (London) LLP 0.00% New 26 $1K
Farmers & Merchants Investments Inc. 0.00% No change 21 $1K
Covestor Ltd 0.00% Add +60.0% 24 $1K
Hantz Financial Services, Inc. 0.00% Add +92.9% 27 $1K
Abound Wealth Management 0.00% New 12 $578
Annis Gardner Whiting Capital Advisors, LLC 0.00% No change 10 $482
Turning Point Benefit Group, Inc. 0.00% New 6 $277
Northwestern Mutual Wealth Management Co. 0.00% New 3 $144
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.