Acadian Asset Management Inc.
AAMI- Exchange
- NYSE
- Industry
- Investment Advice
- SEC CIK
- 0001748824
In the last 90 days, Acadian Asset Management Inc. insiders filed 0 open-market purchases and 1 sale; 302 institutions reported holding it in 13F filings for Q2 2026, worth $2.58B in total; Soros Fund Management is the only superinvestor holding it.
13F holders, Q4 2025
Institutional positions in Acadian Asset Management Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 256
- +11 vs. Q3 2025
- Shares held
- 35.4M
- +505.4K (+1.4%) vs. Q3 2025
- Total value
- $1.67B
- −$15.1M (−0.9%) vs. Q3 2025
- New holders
- 36
- 90 more added
- Sold out
- 25
- 100 more reduced
5 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting AAMI on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 302 | $2.58B |
| Q1 2026 | 256 | $1.96B |
| Q4 2025 | 256 | $1.67B |
| Q3 2025 | 250 | $1.68B |
| Q2 2025 | 218 | $1.26B |
| Q1 2025 | 191 | $929.0M |
| Q4 2024 | 179 | $994.2M |
| Q3 2024 | 172 | $943.8M |
| Q2 2024 | 164 | $843.2M |
| Q1 2024 | 168 | $894.4M |
| Q4 2023 | 171 | $786.6M |
| Q3 2023 | 163 | $797.6M |
| Q2 2023 | 156 | $864.2M |
| Q1 2023 | 166 | $981.8M |
| Q4 2022 | 144 | $871.9M |
| Q3 2022 | 151 | $635.2M |
| Q2 2022 | 152 | $767.4M |
| Q1 2022 | 163 | $1.07B |
| Q4 2021 | 180 | $1.20B |
| Q3 2021 | 178 | $2.07B |
| Q2 2021 | 167 | $1.85B |
| Q1 2021 | 169 | $1.61B |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Acadian Asset Management Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Paulson & Co. Inc. | 7,743,282 | $363.9M | 11.16% | 00.0% | Unchanged |
| BlackRock, Inc. | 4,655,353 | $218.8M | 0.00% | −107,364−2.3% | Reduced |
| Vanguard Group Inc | 2,335,363 | $109.8M | 0.00% | −13,223−0.6% | Reduced |
| Jennison Associates LLC | 1,909,222 | $89.7M | 0.05% | +179,380+10.4% | Added |
| Empyrean Capital Partners, LP | 1,404,562 | $66.0M | 2.30% | −136,546−8.9% | Reduced |
| State Street Corp | 1,206,244 | $56.7M | 0.00% | +5,541+0.5% | Added |
| Dimensional Fund Advisors LP | 909,213 | $42.7M | 0.01% | −44,169−4.6% | Reduced |
| Impax Asset Management Group plc | 845,451 | $39.7M | 0.25% | +79,967+10.4% | Added |
| Soros Fund Management LLCSuperinvestorSoros Fund Management | 737,367 | $34.7M | 0.46% | +280,239+61.3% | Added |
| Geode Capital Management, LLC | 685,272 | $32.2M | 0.00% | +29,082+4.4% | Added |
| Nuveen, LLC | 652,144 | $30.7M | 0.01% | +11,590+1.8% | Added |
| Woodline Partners LP | 559,091 | $26.3M | 0.10% | +488,109+687.7% | Added |
| Federated Hermes, Inc. | 558,267 | $26.2M | 0.04% | +215,646+62.9% | Added |
| Morgan Stanley | 532,515 | $25.0M | 0.00% | +61,751+13.1% | Added |
| Arrowstreet Capital, Limited Partnership | 514,463 | $24.2M | 0.01% | −104,881−16.9% | Reduced |
| Charles Schwab Investment Management Inc | 480,306 | $22.6M | 0.00% | +31,345+7.0% | Added |
| North Reef Capital Management LP | 443,922 | $20.9M | 0.84% | −67,530−13.2% | Reduced |
| Invesco Ltd. | 420,606 | $19.8M | 0.00% | +1920.0% | Added |
| Jacobs Levy Equity Management, Inc | 419,346 | $19.7M | 0.08% | +2,848+0.7% | Added |
| GW&K Investment Management, LLC | 413,093 | $19.4M | 0.17% | +29,386+7.7% | Added |
| Allspring Global Investments Holdings, LLC | 368,164 | $17.4M | 0.03% | +79,126+27.4% | Added |
| Systematic Alpha Investments, LLC | 370,108 | $17.4M | 0.54% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 359,613 | $16.9M | 0.02% | +335,874+1,414.9% | Added |
| Two Sigma Investments, LP | 283,488 | $13.3M | 0.02% | −22,808−7.4% | Reduced |
| Northern Trust Corp | 278,985 | $13.1M | 0.00% | −8,767−3.0% | Reduced |
| Two Sigma Advisers, LP | 274,475 | $12.9M | 0.03% | −35,100−11.3% | Reduced |
| William Blair Investment Management, LLC | 255,086 | $12.0M | 0.03% | −26,232−9.3% | Reduced |
| Goldman Sachs Group Inc | 209,096 | $9.83M | 0.00% | −9,490−4.3% | Reduced |
| Bank of New York Mellon Corp | 202,368 | $9.51M | 0.00% | −6,410−3.1% | Reduced |
| Principal Financial Group Inc | 179,642 | $8.44M | 0.00% | +26,180+17.1% | Added |
| FMR LLC | 178,880 | $8.41M | 0.00% | +31,722+21.6% | Added |
| Qube Research & Technologies Ltd | 171,727 | $8.07M | 0.01% | +6,592+4.0% | Added |
| First Trust Advisors LP | 169,315 | $7.96M | 0.01% | +164,508+3,422.3% | Added |
| JPMorgan Chase & Co | 150,602 | $7.08M | 0.00% | +52,029+52.8% | Added |
| Man Group plc | 138,470 | $6.51M | 0.01% | +11,319+8.9% | Added |
| Public Sector Pension Investment Board | 123,049 | $5.78M | 0.02% | +19,680+19.0% | Added |
| Norges Bank | 120,700 | $5.67M | 0.00% | +120,700 | New |
| D. E. Shaw & Co., Inc. | 115,086 | $5.41M | 0.00% | +26,991+30.6% | Added |
| Algert Global LLC | 114,987 | $5.40M | 0.08% | +25,880+29.0% | Added |
| Jupiter Asset Management Ltd | 109,796 | $5.16M | 0.04% | +4,564+4.3% | Added |
| Brightlight Capital Management LP | 107,900 | $5.07M | 3.61% | −42,200−28.1% | Reduced |
| Allianz Asset Management GmbH | 106,998 | $5.03M | 0.01% | +40,568+61.1% | Added |
| Citadel Advisors LLC | 102,471 | $4.82M | 0.00% | +38,518+60.2% | Added |
| Tudor Investment Corp Et Al | 101,163 | $4.75M | 0.03% | −124,416−55.2% | Reduced |
| Bank of America Corp | 100,306 | $4.71M | 0.00% | +17,507+21.1% | Added |
| Renaissance Technologies LLC | 98,328 | $4.62M | 0.01% | +32,228+48.8% | Added |
| UBS Group AG | 95,075 | $4.47M | 0.00% | −81,161−46.1% | Reduced |
| AQR Capital Management LLC | 92,439 | $4.34M | 0.00% | +15,831+20.7% | Added |
| Millennium Management LLC | 88,936 | $4.18M | 0.00% | −113,349−56.0% | Reduced |
| LSV Asset Management | 82,300 | $3.87M | 0.01% | −2,100−2.5% | Reduced |
| Ameriprise Financial Inc | 79,402 | $3.73M | 0.00% | −4,145−5.0% | Reduced |
| American Century Companies Inc | 77,292 | $3.63M | 0.00% | +4,082+5.6% | Added |
| Rhumbline Advisers | 74,893 | $3.52M | 0.00% | −5,151−6.4% | Reduced |
| Legal & General Group Plc | 70,835 | $3.33M | 0.00% | −271−0.4% | Reduced |
| Victory Capital Management Inc | 69,481 | $3.27M | 0.00% | −51,174−42.4% | Reduced |
| UBS Asset Management Americas Inc | 66,621 | $3.13M | 0.00% | +905+1.4% | Added |
| Kestrel Investment Management Corp | 63,181 | $2.97M | 1.68% | −2,200−3.4% | Reduced |
| Teacher Retirement System of Texas | 62,439 | $2.93M | 0.01% | +1,396+2.3% | Added |
| Nearwater Capital Markets, Ltd | 60,000 | $2.82M | 0.05% | 00.0% | Unchanged |
| Spears Abacus Advisors LLC | 59,197 | $2.78M | 0.05% | +59,197 | New |
| Credit Agricole S A | 58,389 | $2.74M | 0.01% | +27,910+91.6% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 57,770 | $2.72M | 0.00% | +57,770 | New |
| Envestnet Asset Management Inc | 56,676 | $2.66M | 0.00% | +14,490+34.3% | Added |
| Swiss National Bank | 56,526 | $2.66M | 0.00% | +4,400+8.4% | Added |
| Barclays PLC | 55,444 | $2.61M | 0.00% | −2,008−3.5% | Reduced |
| Boston Partners | 55,124 | $2.59M | 0.00% | −1,064−1.9% | Reduced |
| ExodusPoint Capital Management, LP | 51,201 | $2.41M | 0.03% | +19,041+59.2% | Added |
| Engineers Gate Manager LP | 50,060 | $2.35M | 0.03% | −5,968−10.7% | Reduced |
| Franklin Resources Inc | 42,986 | $2.02M | 0.00% | +653+1.5% | Added |
| Citigroup Inc | 42,850 | $2.01M | 0.00% | −8,181−16.0% | Reduced |
| Voleon Capital Management LP | 42,370 | $1.99M | 0.04% | +31,509+290.1% | Added |
| BNP Paribas Arbitrage, SA | 42,187 | $1.98M | 0.00% | +5,173+14.0% | Added |
| State of Wisconsin Investment Board | 41,130 | $1.93M | 0.00% | +3,133+8.2% | Added |
| Royce & Associates LP | 39,301 | $1.85M | 0.02% | −8,351−17.5% | Reduced |
| Zacks Investment Management | 38,749 | $1.82M | 0.01% | −3,458−8.2% | Reduced |
| Alliancebernstein L.P. | 38,087 | $1.79M | 0.00% | +2,661+7.5% | Added |
| Dark Forest Capital Management LP | 37,792 | $1.78M | 0.08% | −45,751−54.8% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 35,357 | $1.66M | 0.03% | 00.0% | Unchanged |
| Prudential Financial Inc | 32,756 | $1.54M | 0.00% | −24,920−43.2% | Reduced |
| HRT Financial LP | 32,395 | $1.52M | 0.00% | +5,874+22.1% | Added |
| Kendall Capital Management | 32,260 | $1.52M | 0.32% | +17,110+112.9% | Added |
| Russell Investments Group, Ltd. | 32,131 | $1.51M | 0.00% | −1,410−4.2% | Reduced |
| Linden Thomas Advisory Services, LLC | 30,077 | $1.41M | 0.14% | +1,011+3.5% | Added |
| Brant Point Investment Management LLC | 30,000 | $1.41M | 0.34% | −30,000−50.0% | Reduced |
| Wells Fargo & Company | 29,445 | $1.38M | 0.00% | +12,923+78.2% | Added |
| DGS Capital Management, LLC | 29,386 | $1.38M | 0.24% | +2,359+8.7% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 27,967 | $1.32M | 0.00% | −4,759−14.5% | Reduced |
| California State Teachers Retirement System | 27,270 | $1.28M | 0.00% | +2,311+9.3% | Added |
| Guggenheim Capital LLC | 25,499 | $1.20M | 0.01% | +20,637+424.5% | Added |
| LPL Financial LLC | 25,079 | $1.18M | 0.00% | −793−3.1% | Reduced |
| Creative Planning | 24,839 | $1.17M | 0.00% | −1,117−4.3% | Reduced |
| Great West Life Assurance Co | 24,069 | $1.13M | 0.00% | +943+4.1% | Added |
| Panagora Asset Management Inc | 23,429 | $1.10M | 0.00% | +8,482+56.7% | Added |
| Deutsche Bank AG | 23,011 | $1.08M | 0.00% | −130,715−85.0% | Reduced |
| State Board of Administration of Florida Retirement System | 22,812 | $1.07M | 0.00% | 00.0% | Unchanged |
| Martingale Asset Management L P | 22,524 | $1.06M | 0.03% | −9,204−29.0% | Reduced |
| Concurrent Investment Advisors, LLC | 22,258 | $1.05M | 0.01% | +12,540+129.0% | Added |
| Voloridge Investment Management, LLC | 21,522 | $1.01M | 0.00% | −58,069−73.0% | Reduced |
| Summit Global Investments | 21,320 | $1.00M | 0.06% | +21,320 | New |
| XTX Topco Ltd | 20,643 | $970.2K | 0.03% | +710+3.6% | Added |