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 |
|---|---|---|---|---|---|
| UBS Asset Management Americas Inc | 66,621 | $3.13M | 0.00% | +905+1.4% | Added |
| Victory Capital Management Inc | 69,481 | $3.27M | 0.00% | −51,174−42.4% | Reduced |
| Legal & General Group Plc | 70,835 | $3.33M | 0.00% | −271−0.4% | Reduced |
| Rhumbline Advisers | 74,893 | $3.52M | 0.00% | −5,151−6.4% | Reduced |
| American Century Companies Inc | 77,292 | $3.63M | 0.00% | +4,082+5.6% | Added |
| Ameriprise Financial Inc | 79,402 | $3.73M | 0.00% | −4,145−5.0% | Reduced |
| LSV Asset Management | 82,300 | $3.87M | 0.01% | −2,100−2.5% | Reduced |
| Millennium Management LLC | 88,936 | $4.18M | 0.00% | −113,349−56.0% | Reduced |
| AQR Capital Management LLC | 92,439 | $4.34M | 0.00% | +15,831+20.7% | Added |
| UBS Group AG | 95,075 | $4.47M | 0.00% | −81,161−46.1% | Reduced |
| Renaissance Technologies LLC | 98,328 | $4.62M | 0.01% | +32,228+48.8% | Added |
| Bank of America Corp | 100,306 | $4.71M | 0.00% | +17,507+21.1% | Added |
| Tudor Investment Corp Et Al | 101,163 | $4.75M | 0.03% | −124,416−55.2% | Reduced |
| Citadel Advisors LLC | 102,471 | $4.82M | 0.00% | +38,518+60.2% | Added |
| Allianz Asset Management GmbH | 106,998 | $5.03M | 0.01% | +40,568+61.1% | Added |
| Brightlight Capital Management LP | 107,900 | $5.07M | 3.61% | −42,200−28.1% | Reduced |
| Jupiter Asset Management Ltd | 109,796 | $5.16M | 0.04% | +4,564+4.3% | Added |
| Algert Global LLC | 114,987 | $5.40M | 0.08% | +25,880+29.0% | Added |
| D. E. Shaw & Co., Inc. | 115,086 | $5.41M | 0.00% | +26,991+30.6% | Added |
| Norges Bank | 120,700 | $5.67M | 0.00% | +120,700 | New |
| Public Sector Pension Investment Board | 123,049 | $5.78M | 0.02% | +19,680+19.0% | Added |
| Man Group plc | 138,470 | $6.51M | 0.01% | +11,319+8.9% | Added |
| JPMorgan Chase & Co | 150,602 | $7.08M | 0.00% | +52,029+52.8% | Added |
| First Trust Advisors LP | 169,315 | $7.96M | 0.01% | +164,508+3,422.3% | Added |
| Qube Research & Technologies Ltd | 171,727 | $8.07M | 0.01% | +6,592+4.0% | Added |
| FMR LLC | 178,880 | $8.41M | 0.00% | +31,722+21.6% | Added |
| Principal Financial Group Inc | 179,642 | $8.44M | 0.00% | +26,180+17.1% | Added |
| Bank of New York Mellon Corp | 202,368 | $9.51M | 0.00% | −6,410−3.1% | Reduced |
| Goldman Sachs Group Inc | 209,096 | $9.83M | 0.00% | −9,490−4.3% | Reduced |
| William Blair Investment Management, LLC | 255,086 | $12.0M | 0.03% | −26,232−9.3% | Reduced |
| Two Sigma Advisers, LP | 274,475 | $12.9M | 0.03% | −35,100−11.3% | Reduced |
| Northern Trust Corp | 278,985 | $13.1M | 0.00% | −8,767−3.0% | Reduced |
| Two Sigma Investments, LP | 283,488 | $13.3M | 0.02% | −22,808−7.4% | Reduced |
| SG Americas Securities, LLC | 359,613 | $16.9M | 0.02% | +335,874+1,414.9% | Added |
| Systematic Alpha Investments, LLC | 370,108 | $17.4M | 0.54% | 00.0% | Unchanged |
| Allspring Global Investments Holdings, LLC | 368,164 | $17.4M | 0.03% | +79,126+27.4% | Added |
| GW&K Investment Management, LLC | 413,093 | $19.4M | 0.17% | +29,386+7.7% | Added |
| Jacobs Levy Equity Management, Inc | 419,346 | $19.7M | 0.08% | +2,848+0.7% | Added |
| Invesco Ltd. | 420,606 | $19.8M | 0.00% | +1920.0% | Added |
| North Reef Capital Management LP | 443,922 | $20.9M | 0.84% | −67,530−13.2% | Reduced |
| Charles Schwab Investment Management Inc | 480,306 | $22.6M | 0.00% | +31,345+7.0% | Added |
| Arrowstreet Capital, Limited Partnership | 514,463 | $24.2M | 0.01% | −104,881−16.9% | Reduced |
| Morgan Stanley | 532,515 | $25.0M | 0.00% | +61,751+13.1% | Added |
| Federated Hermes, Inc. | 558,267 | $26.2M | 0.04% | +215,646+62.9% | Added |
| Woodline Partners LP | 559,091 | $26.3M | 0.10% | +488,109+687.7% | Added |
| Nuveen, LLC | 652,144 | $30.7M | 0.01% | +11,590+1.8% | Added |
| Geode Capital Management, LLC | 685,272 | $32.2M | 0.00% | +29,082+4.4% | Added |
| Soros Fund Management LLCSuperinvestorSoros Fund Management | 737,367 | $34.7M | 0.46% | +280,239+61.3% | Added |
| Impax Asset Management Group plc | 845,451 | $39.7M | 0.25% | +79,967+10.4% | Added |
| Dimensional Fund Advisors LP | 909,213 | $42.7M | 0.01% | −44,169−4.6% | Reduced |
| State Street Corp | 1,206,244 | $56.7M | 0.00% | +5,541+0.5% | Added |
| Empyrean Capital Partners, LP | 1,404,562 | $66.0M | 2.30% | −136,546−8.9% | Reduced |
| Jennison Associates LLC | 1,909,222 | $89.7M | 0.05% | +179,380+10.4% | Added |
| Vanguard Group Inc | 2,335,363 | $109.8M | 0.00% | −13,223−0.6% | Reduced |
| BlackRock, Inc. | 4,655,353 | $218.8M | 0.00% | −107,364−2.3% | Reduced |
| Paulson & Co. Inc. | 7,743,282 | $363.9M | 11.16% | 00.0% | Unchanged |
| Amundi | 0 | $0 | 0.00% | −252,410−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −153,464−100.0% | Sold out |
| EAM Investors, LLC | 0 | $0 | 0.00% | −99,149−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −51,179−100.0% | Sold out |
| Integrated Quantitative Investments LLC | 0 | $0 | 0.00% | −25,118−100.0% | Sold out |
| Winton Group Ltd | 0 | $0 | 0.00% | −25,057−100.0% | Sold out |
| Round Rock Advisors, LLC | 0 | $0 | 0.00% | −22,778−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −16,012−100.0% | Sold out |
| Weiss Asset Management LP | 0 | $0 | 0.00% | −9,996−100.0% | Sold out |
| Connor, Clark & Lunn Investment Management Ltd. | 0 | $0 | 0.00% | −9,613−100.0% | Sold out |
| Magnetar Financial LLC | 0 | $0 | 0.00% | −7,659−100.0% | Sold out |
| Freestone Grove Partners LP | 0 | $0 | 0.00% | −7,632−100.0% | Sold out |
| Entropy Technologies, LP | 0 | $0 | 0.00% | −7,298−100.0% | Sold out |
| Navellier & Associates Inc | 0 | $0 | 0.00% | −6,446−100.0% | Sold out |
| DRW Securities, LLC | 0 | $0 | 0.00% | −6,259−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −5,546−100.0% | Sold out |
| O'Shaughnessy Asset Management, LLC | 0 | $0 | 0.00% | −5,287−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −5,278−100.0% | Sold out |
| R Squared Ltd | 0 | $0 | 0.00% | −4,731−100.0% | Sold out |
| Scotia Capital Inc. | 0 | $0 | 0.00% | −4,478−100.0% | Sold out |
| Principal Securities, Inc. | 0 | $0 | 0.00% | −556−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −352−100.0% | Sold out |
| Wealthspire Advisors, LLC | 0 | $0 | 0.00% | −47−100.0% | Sold out |
| Accredited Investors Inc. | 0 | $0 | 0.00% | −33−100.0% | Sold out |
| Atlantic Trust, LLC | 0 | $0 | 0.00% | −32−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | – | – | – | – | Not filed |
| AXA Investment Managers S.A. | – | – | – | – | Not filed |
| Point72 (DIFC) Ltd | – | – | – | – | Not filed |
| Shell Asset Management Co | – | – | – | – | Not filed |
| Point72 Europe (London) LLP | – | – | – | – | Not filed |