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 |
|---|---|---|---|---|---|
| Rhumbline Advisers | 72,136 | $3.93M | 0.00% | −2,757−3.7% | Reduced |
| Vident Advisory, LLC | 78,642 | $4.28M | 0.04% | +73,147+1,331.2% | Added |
| American Century Companies Inc | 80,776 | $4.40M | 0.00% | +3,484+4.5% | Added |
| Citadel Advisors LLC | 81,023 | $4.41M | 0.00% | −21,448−20.9% | Reduced |
| Ameriprise Financial Inc | 81,107 | $4.41M | 0.00% | +1,705+2.1% | Added |
| LSV Asset Management | 82,300 | $4.48M | 0.01% | 00.0% | Unchanged |
| Spears Abacus Advisors LLC | 84,459 | $4.60M | 0.09% | +25,262+42.7% | Added |
| Karl Kapital LLC | 90,048 | $4.90M | 3.39% | +90,048 | New |
| JPMorgan Chase & Co | 97,620 | $5.10M | 0.00% | −52,982−35.2% | Reduced |
| Algert Global LLC | 96,687 | $5.26M | 0.08% | −18,300−15.9% | Reduced |
| Brightlight Capital Management LP | 100,200 | $5.45M | 5.38% | −7,700−7.1% | Reduced |
| Man Group plc | 118,071 | $6.43M | 0.01% | −20,399−14.7% | Reduced |
| Deutsche Bank AG | 119,736 | $6.52M | 0.00% | +96,725+420.3% | Added |
| Jupiter Asset Management Ltd | 131,673 | $7.17M | 0.04% | +21,877+19.9% | Added |
| Bank of America Corp | 137,218 | $7.47M | 0.00% | +36,912+36.8% | Added |
| Public Sector Pension Investment Board | 147,353 | $8.02M | 0.02% | +24,304+19.8% | Added |
| AQR Capital Management LLC | 159,669 | $8.69M | 0.00% | +67,230+72.7% | Added |
| Qube Research & Technologies Ltd | 174,938 | $9.52M | 0.01% | +3,211+1.9% | Added |
| Allianz Asset Management GmbH | 181,393 | $9.87M | 0.01% | +74,395+69.5% | Added |
| Vanguard Fiduciary Trust Co | 184,875 | $10.1M | 0.00% | +184,875 | New |
| First Trust Advisors LP | 194,170 | $10.6M | 0.01% | +24,855+14.7% | Added |
| Janus Henderson Group PLC | 195,337 | $10.6M | 0.01% | +182,904+1,471.1% | Added |
| Bank of New York Mellon Corp | 196,225 | $10.7M | 0.00% | −6,143−3.0% | Reduced |
| Principal Financial Group Inc | 204,527 | $11.1M | 0.01% | +24,885+13.9% | Added |
| FMR LLC | 213,004 | $11.6M | 0.00% | +34,124+19.1% | Added |
| UBS Group AG | 216,817 | $11.8M | 0.00% | +121,742+128.0% | Added |
| Goldman Sachs Group Inc | 219,292 | $11.9M | 0.00% | +10,196+4.9% | Added |
| North Reef Capital Management LP | 220,239 | $12.0M | 0.41% | −223,683−50.4% | Reduced |
| Arrowstreet Capital, Limited Partnership | 241,200 | $13.1M | 0.01% | −273,263−53.1% | Reduced |
| William Blair Investment Management, LLC | 263,737 | $14.4M | 0.05% | +8,651+3.4% | Added |
| Northern Trust Corp | 279,061 | $15.2M | 0.00% | +760.0% | Added |
| Boston Trust Walden Corp | 281,604 | $15.3M | 0.13% | +281,604 | New |
| Jacobs Levy Equity Management, Inc | 318,131 | $17.3M | 0.07% | −101,215−24.1% | Reduced |
| Azora Capital LP | 329,349 | $17.9M | 1.18% | +329,349 | New |
| Systematic Alpha Investments, LLC | 370,108 | $20.1M | 0.71% | 00.0% | Unchanged |
| GW&K Investment Management, LLC | 375,977 | $20.5M | 0.18% | −37,116−9.0% | Reduced |
| Invesco Ltd. | 412,702 | $22.5M | 0.00% | −7,904−1.9% | Reduced |
| Allspring Global Investments Holdings, LLC | 419,239 | $23.6M | 0.04% | +51,075+13.9% | Added |
| Charles Schwab Investment Management Inc | 453,320 | $24.7M | 0.00% | −26,986−5.6% | Reduced |
| Two Sigma Investments, LP | 478,814 | $26.1M | 0.02% | +195,326+68.9% | Added |
| Morgan Stanley | 537,643 | $29.3M | 0.00% | +5,128+1.0% | Added |
| Federated Hermes, Inc. | 568,320 | $30.9M | 0.05% | +10,053+1.8% | Added |
| Nuveen, LLC | 588,464 | $32.0M | 0.01% | −63,680−9.8% | Reduced |
| SG Americas Securities, LLC | 603,683 | $32.9M | 0.04% | +244,070+67.9% | Added |
| Soros Fund Management LLCSuperinvestorSoros Fund Management | 648,807 | $35.3M | 0.48% | −88,560−12.0% | Reduced |
| Woodline Partners LP | 701,720 | $38.2M | 0.14% | +142,629+25.5% | Added |
| Geode Capital Management, LLC | 747,822 | $40.7M | 0.00% | +62,550+9.1% | Added |
| Impax Asset Management Group plc | 823,323 | $44.8M | 0.31% | −22,128−2.6% | Reduced |
| Vanguard Portfolio Management LLC | 883,909 | $48.1M | 0.00% | +883,909 | New |
| Dimensional Fund Advisors LP | 904,549 | $49.2M | 0.01% | −4,664−0.5% | Reduced |
| Vanguard Capital Management LLC | 1,158,887 | $63.1M | 0.00% | +1,158,887 | New |
| State Street Corp | 1,209,440 | $65.8M | 0.00% | +3,196+0.3% | Added |
| Empyrean Capital Partners, LP | 1,308,190 | $71.2M | 2.37% | −96,372−6.9% | Reduced |
| Jennison Associates LLC | 2,022,207 | $110.0M | 0.08% | +112,985+5.9% | Added |
| BlackRock, Inc. | 4,574,232 | $248.9M | 0.00% | −81,121−1.7% | Reduced |
| Paulson & Co. Inc. | 7,743,282 | $421.4M | 13.54% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −274,475−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −101,163−100.0% | Sold out |
| Nearwater Capital Markets, Ltd | 0 | $0 | 0.00% | −60,000−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −51,201−100.0% | Sold out |
| Brant Point Investment Management LLC | 0 | $0 | 0.00% | −30,000−100.0% | Sold out |
| Guggenheim Capital LLC | 0 | $0 | 0.00% | −25,499−100.0% | Sold out |
| Martingale Asset Management L P | 0 | $0 | 0.00% | −22,524−100.0% | Sold out |
| Voloridge Investment Management, LLC | 0 | $0 | 0.00% | −21,522−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −20,325−100.0% | Sold out |
| Susquehanna Fundamental Investments, LLC | 0 | $0 | 0.00% | −14,508−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −10,941−100.0% | Sold out |
| Polymer Capital Management (US) LLC | 0 | $0 | 0.00% | −7,871−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −7,493−100.0% | Sold out |
| VARCOV Co. | 0 | $0 | 0.00% | −6,401−100.0% | Sold out |
| EntryPoint Capital, LLC | 0 | $0 | 0.00% | −6,097−100.0% | Sold out |
| Mackenzie Financial Corp | 0 | $0 | 0.00% | −5,425−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −5,206−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −4,948−100.0% | Sold out |
| Canada Pension Plan Investment Board | 0 | $0 | 0.00% | −4,800−100.0% | Sold out |
| Axq Capital, LP | 0 | $0 | 0.00% | −4,334−100.0% | Sold out |
| Kestra Advisory Services, LLC | 0 | $0 | 0.00% | −2,524−100.0% | Sold out |
| Harbor Capital Advisors, Inc. | 0 | $0 | 0.00% | −216−100.0% | Sold out |
| Hillsdale Investment Management Inc. | 0 | $0 | 0.00% | −200−100.0% | Sold out |
| DV Trading LLC | 0 | $0 | 0.00% | −200−100.0% | Sold out |
| Vermillion & White Wealth Management Group, LLC | 0 | $0 | 0.00% | −135−100.0% | Sold out |
| Torren Management, LLC | 0 | $0 | 0.00% | −40−100.0% | Sold out |
| Optima Capital LLC | 0 | $0 | 0.00% | −33−100.0% | Sold out |
| SageView Advisory Group, LLC | 0 | $0 | 0.00% | −30−100.0% | Sold out |
| National Bank of Canada | 0 | $0 | 0.00% | −13−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −8−100.0% | Sold out |
| Turning Point Benefit Group, Inc. | 0 | $0 | 0.00% | −6−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Northwestern Mutual Wealth Management Co | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Caitong International Asset Management Co., Ltd | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Norges Bank | – | – | – | – | Not filed |
| CIBC Private Wealth Group, LLC | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |