Acadian Asset ManagementAAMI
13F holders, Q2 2026 (June 30)302holders +46
65new positions
18sold out
8famous investors
$71.50avg. 13F price*
At the end of Q2 2026, 302 institutions reported holding Acadian Asset Management Inc. (AAMI) in their 13F filings, up 46 from Q1 2026. 65 opened new positions and 18 sold out. The largest holders were Paulson & Co. ($417.9M), BlackRock, Inc. ($320.9M) and Jennison Associates LLC ($109.2M). 8 famous investors held it, including John Paulson (16.2% of Paulson & Co.'s portfolio), George Soros (0.8% of Soros Fund Management's portfolio) and Cliff Asness (0.0% of AQR Capital Management's portfolio).
- Company
- Acadian Asset Management Inc.
- CUSIP
- 10948W103
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 65 | $178.1M |
| Exits | 18 | $24.3M |
All 13F filers, Q1 2026 → Q2 2026: 5,423,575 shares bought and 5,173,966 shares sold, net +249,609 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 302 holders
| Paulson & Co. | 16.23% | Reduce -24.5% | 5,843,282 | $417.9M |
| BlackRock, Inc. | 0.00% | Reduce -1.9% | 4,486,535 | $320.9M |
| Jennison Associates LLC | 0.07% | Reduce -24.5% | 1,526,570 | $109.2M |
| Invesco Ltd. | 0.01% | Add +233.5% | 1,376,531 | $98.4M |
| Empyrean Capital Partners, LP | 3.57% | Reduce -0.0% | 1,308,000 | $93.5M |
| State Street Corp. | 0.00% | Add +1.2% | 1,224,388 | $87.6M |
| Vanguard Capital Management LLC | 0.00% | Add +1.5% | 1,176,511 | $84.1M |
| Geode Capital Management, LLC | 0.00% | Add +29.7% | 969,724 | $69.4M |
| Dimensional Fund Advisors LP | 0.01% | Add +0.8% | 911,667 | $65.2M |
| Woodline Partners LP | 0.20% | Add +25.9% | 883,540 | $63.2M |
| Vanguard Portfolio Management LLC | 0.00% | Reduce -8.0% | 813,352 | $58.2M |
| Driehaus Capital Management LLC | 0.33% | New | 788,901 | $56.4M |
| Avantyr Capital Partners, LP | 2.02% | New | 767,793 | $54.9M |
| Morgan Stanley | 0.00% | Add +15.9% | 623,422 | $44.6M |
| Soros Fund Management | 0.76% | Reduce -5.9% | 610,248 | $43.6M |
| Nuveen, LLC | 0.01% | Add +2.4% | 602,378 | $43.1M |
| Federated Hermes, Inc. | 0.06% | Add +1.1% | 574,597 | $41.1M |
| Allspring Global Investments Holdings, LLC | 0.06% | Add +32.0% | 553,623 | $39.8M |
| Two Sigma Investments, LP | 0.03% | Add +9.4% | 523,939 | $37.5M |
| Azora Capital LP | 1.49% | Add +50.6% | 496,005 | $35.5M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -11.0% | 403,342 | $28.8M |
| Systematic Alpha Investments, LLC | 0.71% | No change | 370,108 | $26.5M |
| GW&K Investment Management, LLC | 0.21% | Reduce -1.9% | 368,935 | $26.4M |
| Impax Asset Management Group plc | 0.16% | Reduce -57.5% | 350,000 | $25.0M |
| Amundi | 0.01% | New | 317,315 | $22.7M |
| Northern Trust Corp. | 0.00% | Add +8.6% | 303,111 | $21.7M |
| Boston Trust Walden Corp | 0.15% | Reduce -4.6% | 268,707 | $19.2M |
| AQR Capital Management | 0.01% | Add +59.1% | 254,068 | $18.2M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.03% | Add +1069.4% | 249,082 | $17.8M |
| Goldman Sachs Group Inc. | 0.00% | Add +11.5% | 244,568 | $17.5M |
| FMR LLC | 0.00% | Add +8.5% | 231,204 | $16.5M |
| William Blair Investment Management, LLC | 0.04% | Reduce -21.2% | 207,796 | $14.9M |
| Bank of New York Mellon Corp | 0.00% | Add +4.4% | 204,912 | $14.7M |
| Principal Financial Group Inc. | 0.01% | Reduce -3.7% | 196,988 | $14.1M |
| First Trust Advisors LP | 0.01% | Add +0.4% | 194,899 | $13.9M |
| UBS Group AG | 0.00% | Reduce -10.7% | 193,687 | $13.9M |
| Vanguard Fiduciary Trust Co. | 0.00% | Add +3.2% | 190,801 | $13.6M |
| Allianz Asset Management GmbH | 0.01% | Reduce -6.0% | 170,518 | $12.2M |
| Jacobs Levy Equity Management, Inc. | 0.04% | Reduce -52.3% | 151,793 | $10.9M |
| Jupiter Topco LLC | 0.00% | — | 151,546 | $10.8M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Reduce -38.1% | 149,259 | $10.7M |
| Bank of America Corp. | 0.00% | Reduce -2.9% | 133,241 | $9.5M |
| Jupiter Asset Management Ltd. | 0.05% | No change | 131,673 | $9.4M |
| Public Sector Pension Investment Board | 0.02% | Reduce -11.2% | 130,897 | $9.4M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.01% | Add +287.5% | 105,367 | $7.5M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +53.5% | 103,504 | $7.4M |
| American Century Companies Inc. | 0.00% | Add +18.4% | 95,664 | $6.8M |
| Vident Advisory, LLC | 0.05% | Add +18.0% | 92,774 | $6.6M |
| SG Americas Securities, LLC | 0.00% | Reduce -84.8% | 91,597 | $6.6M |
| North Reef Capital Management LP | 0.24% | Reduce -60.7% | 86,596 | $6.2M |
| Ghisallo Capital Management LLC | 0.15% | New | 85,379 | $6.1M |
| Cannell & Spears LLC | 0.11% | Reduce -0.1% | 84,330 | $6.0M |
| Walleye Capital LLC | 0.03% | Add +321.6% | 82,585 | $5.9M |
| Informed Momentum Co LLC | 0.53% | New | 82,424 | $5.9M |
| JPMorgan Chase & Co. | 0.00% | Reduce -16.6% | 81,372 | $5.9M |
| Credit Agricole S A | 0.01% | Add +37.0% | 80,000 | $5.7M |
| Ameriprise Financial Inc. | 0.00% | Reduce -2.9% | 78,746 | $5.6M |
| LSV Asset Management | 0.01% | Reduce -4.9% | 78,300 | $5.6M |
| Franklin Resources Inc. | 0.00% | Add +37.8% | 74,727 | $5.3M |
| Algert Global LLC | 0.06% | Reduce -23.4% | 74,067 | $5.3M |
| Envestnet Asset Management Inc. | 0.00% | Add +12.5% | 70,624 | $5.1M |
| Legal & General Group Plc | 0.00% | Add +5.8% | 68,012 | $4.9M |
| Linden Thomas Advisory Services, LLC | 0.39% | Add +12.3% | 66,756 | $4.8M |
| Rhumbline Advisers | 0.00% | Reduce -9.8% | 65,048 | $4.7M |
| Victory Capital Management Inc. | 0.00% | Add +0.5% | 63,862 | $4.6M |
| Trexquant Investment LP | 0.03% | Add +262.2% | 62,669 | $4.5M |
| Citadel Advisors | 0.00% | Reduce -23.6% | 61,940 | $4.4M |
| Qube Research & Technologies Ltd | 0.00% | Reduce -68.1% | 55,830 | $4.0M |
| Thornburg Investment Management Inc. | 0.04% | Add +100.7% | 55,757 | $4.0M |
| Swiss National Bank | 0.00% | Reduce -1.6% | 55,626 | $4.0M |
| Boston Partners | 0.00% | Reduce -8.4% | 52,688 | $3.8M |
| Millennium Management | 0.00% | Reduce -25.2% | 51,885 | $3.7M |
| Rockefeller Capital Management L.P. | 0.01% | Add +10819.2% | 50,010 | $3.6M |
| Citigroup Inc. | 0.00% | Add +182.3% | 43,839 | $3.1M |
| EFG International AG | 0.05% | Reduce -1.9% | 40,664 | $2.9M |
| Mackenzie Financial Corp. | 0.00% | New | 40,105 | $2.9M |
| Creative Planning | 0.00% | Add +31.2% | 39,983 | $2.9M |
| State of Wisconsin Investment Board | 0.01% | Add +9.2% | 38,688 | $2.8M |
| State Board of Administration of Florida Retirement System | 0.00% | Reduce -4.8% | 38,525 | $2.8M |
| CWA Asset Management Group, LLC | 0.08% | Add +11.5% | 37,227 | $2.7M |
| Sei Investments Co. | 0.00% | Add +35.0% | 36,368 | $2.6M |
| PDT Partners, LLC | 0.14% | Add +164.3% | 36,197 | $2.6M |
| Raymond James Financial Inc. | 0.00% | Add +389.6% | 36,172 | $2.6M |
| Natixis Advisors, LLC | 0.00% | Add +57.2% | 35,916 | $2.6M |
| Redhawk Wealth Advisors, Inc. | 0.25% | Reduce -12.0% | 35,281 | $2.5M |
| California State Teachers Retirement System | 0.00% | Add +27.4% | 34,481 | $2.5M |
| Engineers Gate Manager LP | 0.03% | Reduce -35.5% | 34,006 | $2.4M |
| Kendall Capital Management | 0.40% | Reduce -1.4% | 33,985 | $2.4M |
| D. E. Shaw & Co. | 0.00% | Reduce -40.2% | 33,743 | $2.4M |
| Y-Intercept (Hong Kong) Ltd | 0.05% | Add +41.8% | 32,525 | $2.3M |
| Aquatic Capital Management LLC | 0.08% | Add +282.7% | 31,941 | $2.3M |
| Renaissance Technologies | 0.00% | Reduce -47.7% | 31,651 | $2.3M |
| Hussman Strategic Advisors, Inc. | 0.52% | Reduce -25.0% | 31,500 | $2.3M |
| Deutsche Bank AG | 0.00% | Reduce -75.2% | 29,706 | $2.1M |
| BNP Paribas Financial Markets | 0.00% | Reduce -14.2% | 29,343 | $2.1M |
| Squarepoint Ops LLC | 0.00% | New | 29,242 | $2.1M |
| Diametric Capital, LP | 0.21% | New | 27,813 | $2.0M |
| Prudential Financial Inc. | 0.00% | Add +1.7% | 27,496 | $2.0M |
| Alliancebernstein L.P. | 0.00% | Reduce -5.8% | 35,887 | $2.0M |
| XTX Topco Ltd | 0.02% | Add +445.1% | 26,825 | $1.9M |
"% of holder's portfolio" is AAMI's weight in each manager's 13F, not the share of Acadian Asset Management Inc. the manager owns.