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, Q1 2026
Institutional positions in Acadian Asset Management Inc. as of Mar 31, 2026. 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
- +4 vs. Q4 2025
- Shares held
- 36.0M
- +2.96M (+9.0%) vs. Q4 2025
- Total value
- $1.96B
- +$405.9M (+26.2%) vs. Q4 2025
- New holders
- 38
- 89 more added
- Sold out
- 34
- 88 more reduced
4 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Acadian Asset Management Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Paulson & Co. Inc. | 7,743,282 | $421.4M | 13.54% | 00.0% | Unchanged |
| BlackRock, Inc. | 4,574,232 | $248.9M | 0.00% | −81,121−1.7% | Reduced |
| Jennison Associates LLC | 2,022,207 | $110.0M | 0.08% | +112,985+5.9% | Added |
| Empyrean Capital Partners, LP | 1,308,190 | $71.2M | 2.37% | −96,372−6.9% | Reduced |
| State Street Corp | 1,209,440 | $65.8M | 0.00% | +3,196+0.3% | Added |
| Vanguard Capital Management LLC | 1,158,887 | $63.1M | 0.00% | +1,158,887 | New |
| Dimensional Fund Advisors LP | 904,549 | $49.2M | 0.01% | −4,664−0.5% | Reduced |
| Vanguard Portfolio Management LLC | 883,909 | $48.1M | 0.00% | +883,909 | New |
| Impax Asset Management Group plc | 823,323 | $44.8M | 0.31% | −22,128−2.6% | Reduced |
| Geode Capital Management, LLC | 747,822 | $40.7M | 0.00% | +62,550+9.1% | Added |
| Woodline Partners LP | 701,720 | $38.2M | 0.14% | +142,629+25.5% | Added |
| Soros Fund Management LLCSuperinvestorSoros Fund Management | 648,807 | $35.3M | 0.48% | −88,560−12.0% | Reduced |
| SG Americas Securities, LLC | 603,683 | $32.9M | 0.04% | +244,070+67.9% | Added |
| Nuveen, LLC | 588,464 | $32.0M | 0.01% | −63,680−9.8% | Reduced |
| Federated Hermes, Inc. | 568,320 | $30.9M | 0.05% | +10,053+1.8% | Added |
| Morgan Stanley | 537,643 | $29.3M | 0.00% | +5,128+1.0% | Added |
| Two Sigma Investments, LP | 478,814 | $26.1M | 0.02% | +195,326+68.9% | Added |
| Charles Schwab Investment Management Inc | 453,320 | $24.7M | 0.00% | −26,986−5.6% | Reduced |
| Allspring Global Investments Holdings, LLC | 419,239 | $23.6M | 0.04% | +51,075+13.9% | Added |
| Invesco Ltd. | 412,702 | $22.5M | 0.00% | −7,904−1.9% | Reduced |
| GW&K Investment Management, LLC | 375,977 | $20.5M | 0.18% | −37,116−9.0% | Reduced |
| Systematic Alpha Investments, LLC | 370,108 | $20.1M | 0.71% | 00.0% | Unchanged |
| Azora Capital LP | 329,349 | $17.9M | 1.18% | +329,349 | New |
| Jacobs Levy Equity Management, Inc | 318,131 | $17.3M | 0.07% | −101,215−24.1% | Reduced |
| Boston Trust Walden Corp | 281,604 | $15.3M | 0.13% | +281,604 | New |
| Northern Trust Corp | 279,061 | $15.2M | 0.00% | +760.0% | Added |
| William Blair Investment Management, LLC | 263,737 | $14.4M | 0.05% | +8,651+3.4% | Added |
| Arrowstreet Capital, Limited Partnership | 241,200 | $13.1M | 0.01% | −273,263−53.1% | Reduced |
| North Reef Capital Management LP | 220,239 | $12.0M | 0.41% | −223,683−50.4% | Reduced |
| Goldman Sachs Group Inc | 219,292 | $11.9M | 0.00% | +10,196+4.9% | Added |
| UBS Group AG | 216,817 | $11.8M | 0.00% | +121,742+128.0% | Added |
| FMR LLC | 213,004 | $11.6M | 0.00% | +34,124+19.1% | Added |
| Principal Financial Group Inc | 204,527 | $11.1M | 0.01% | +24,885+13.9% | Added |
| Bank of New York Mellon Corp | 196,225 | $10.7M | 0.00% | −6,143−3.0% | Reduced |
| Janus Henderson Group PLC | 195,337 | $10.6M | 0.01% | +182,904+1,471.1% | Added |
| First Trust Advisors LP | 194,170 | $10.6M | 0.01% | +24,855+14.7% | Added |
| Vanguard Fiduciary Trust Co | 184,875 | $10.1M | 0.00% | +184,875 | New |
| Allianz Asset Management GmbH | 181,393 | $9.87M | 0.01% | +74,395+69.5% | Added |
| Qube Research & Technologies Ltd | 174,938 | $9.52M | 0.01% | +3,211+1.9% | Added |
| AQR Capital Management LLC | 159,669 | $8.69M | 0.00% | +67,230+72.7% | Added |
| Public Sector Pension Investment Board | 147,353 | $8.02M | 0.02% | +24,304+19.8% | Added |
| Bank of America Corp | 137,218 | $7.47M | 0.00% | +36,912+36.8% | Added |
| Jupiter Asset Management Ltd | 131,673 | $7.17M | 0.04% | +21,877+19.9% | Added |
| Deutsche Bank AG | 119,736 | $6.52M | 0.00% | +96,725+420.3% | Added |
| Man Group plc | 118,071 | $6.43M | 0.01% | −20,399−14.7% | Reduced |
| Brightlight Capital Management LP | 100,200 | $5.45M | 5.38% | −7,700−7.1% | Reduced |
| Algert Global LLC | 96,687 | $5.26M | 0.08% | −18,300−15.9% | Reduced |
| JPMorgan Chase & Co | 97,620 | $5.10M | 0.00% | −52,982−35.2% | Reduced |
| Karl Kapital LLC | 90,048 | $4.90M | 3.39% | +90,048 | New |
| Spears Abacus Advisors LLC | 84,459 | $4.60M | 0.09% | +25,262+42.7% | Added |
| LSV Asset Management | 82,300 | $4.48M | 0.01% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 81,107 | $4.41M | 0.00% | +1,705+2.1% | Added |
| Citadel Advisors LLC | 81,023 | $4.41M | 0.00% | −21,448−20.9% | Reduced |
| American Century Companies Inc | 80,776 | $4.40M | 0.00% | +3,484+4.5% | Added |
| Vident Advisory, LLC | 78,642 | $4.28M | 0.04% | +73,147+1,331.2% | Added |
| Rhumbline Advisers | 72,136 | $3.93M | 0.00% | −2,757−3.7% | Reduced |
| Millennium Management LLC | 69,334 | $3.77M | 0.00% | −19,602−22.0% | Reduced |
| UBS Asset Management Americas Inc | 67,421 | $3.67M | 0.00% | +800+1.2% | Added |
| Legal & General Group Plc | 64,288 | $3.50M | 0.00% | −6,547−9.2% | Reduced |
| Victory Capital Management Inc | 63,557 | $3.46M | 0.00% | −5,924−8.5% | Reduced |
| Envestnet Asset Management Inc | 62,788 | $3.42M | 0.00% | +6,112+10.8% | Added |
| Kestrel Investment Management Corp | 62,381 | $3.39M | 2.03% | −800−1.3% | Reduced |
| Renaissance Technologies LLC | 60,544 | $3.29M | 0.01% | −37,784−38.4% | Reduced |
| Linden Thomas Advisory Services, LLC | 59,448 | $3.24M | 0.31% | +29,371+97.7% | Added |
| Credit Agricole S A | 58,389 | $3.18M | 0.01% | 00.0% | Unchanged |
| Boston Partners | 57,533 | $3.13M | 0.00% | +2,409+4.4% | Added |
| Swiss National Bank | 56,526 | $3.08M | 0.00% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 56,410 | $3.07M | 0.00% | −58,676−51.0% | Reduced |
| Franklin Resources Inc | 54,244 | $2.95M | 0.00% | +11,258+26.2% | Added |
| Engineers Gate Manager LP | 52,696 | $2.87M | 0.04% | +2,636+5.3% | Added |
| Zacks Investment Management | 50,853 | $2.77M | 0.02% | +12,104+31.2% | Added |
| Assenagon Asset Management S.A. | 45,836 | $2.49M | 0.00% | +45,836 | New |
| Hussman Strategic Advisors, Inc. | 42,000 | $2.29M | 0.49% | +42,000 | New |
| EFG International AG | 41,435 | $2.25M | 0.05% | +41,435 | New |
| State Board of Administration of Florida Retirement System | 40,459 | $2.20M | 0.00% | +17,647+77.4% | Added |
| Redhawk Wealth Advisors, Inc. | 40,092 | $2.18M | 0.24% | +40,092 | New |
| Intech Investment Management LLC | 39,108 | $2.13M | 0.02% | +26,744+216.3% | Added |
| State of Wisconsin Investment Board | 35,418 | $1.93M | 0.00% | −5,712−13.9% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 35,357 | $1.92M | 0.03% | 00.0% | Unchanged |
| Kendall Capital Management | 34,460 | $1.88M | 0.38% | +2,200+6.8% | Added |
| BNP Paribas Arbitrage, SA | 34,194 | $1.86M | 0.00% | −7,993−18.9% | Reduced |
| CWA Asset Management Group, LLC | 33,388 | $1.82M | 0.06% | +33,388 | New |
| Alliancebernstein L.P. | 38,087 | $1.79M | 0.00% | 00.0% | Unchanged |
| Royce & Associates LP | 32,218 | $1.75M | 0.02% | −7,083−18.0% | Reduced |
| Jane Street Group, LLC | 31,897 | $1.74M | 0.00% | +31,897 | New |
| Dark Forest Capital Management LP | 30,948 | $1.68M | 0.15% | −6,844−18.1% | Reduced |
| Creative Planning | 30,467 | $1.66M | 0.00% | +5,628+22.7% | Added |
| DGS Capital Management, LLC | 29,489 | $1.60M | 0.26% | +103+0.4% | Added |
| Thornburg Investment Management Inc | 27,786 | $1.51M | 0.02% | +27,786 | New |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 27,191 | $1.48M | 0.00% | −776−2.8% | Reduced |
| Teacher Retirement System of Texas | 27,166 | $1.48M | 0.01% | −35,273−56.5% | Reduced |
| California State Teachers Retirement System | 27,070 | $1.47M | 0.00% | −200−0.7% | Reduced |
| Prudential Financial Inc | 27,036 | $1.47M | 0.00% | −5,720−17.5% | Reduced |
| SEI Investments Co | 26,930 | $1.47M | 0.00% | +9,937+58.5% | Added |
| Russell Investments Group, Ltd. | 26,901 | $1.46M | 0.00% | −5,230−16.3% | Reduced |
| HRT Financial LP | 25,892 | $1.41M | 0.00% | −6,503−20.1% | Reduced |
| State of Tennessee, Treasury Department | 24,827 | $1.35M | 0.00% | +18,758+309.1% | Added |
| Great West Life Assurance Co | 24,069 | $1.31M | 0.00% | 00.0% | Unchanged |
| LPL Financial LLC | 23,373 | $1.27M | 0.00% | −1,706−6.8% | Reduced |
| Voleon Capital Management LP | 23,036 | $1.25M | 0.03% | −19,334−45.6% | Reduced |