ACADIAN ASSET MANAGEMENT INC (AAMI)
Institutional ownership reported to the SEC as of Q2 2026, across 30 quarters.
Institutions report 36,028,084 shares against 35,490,128 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. Over 100% because an adviser and a sub-adviser can both report the same shares, and both are counted.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| PAULSON & CO. INC. | $417.9M | 5,843,282 | 16.23% | 28q | -24.5%-$135.9M |
| BlackRock, Inc. | $320.9M | 4,486,535 | 0.00% | 8q | -1.9%-$6.3M |
| JENNISON ASSOCIATES LLC | $109.2M | 1,526,570 | 0.07% | 28q | -24.5%-$35.4M |
| Invesco Ltd. | $98.4M | 1,376,531 | 0.01% | 28q | +233.5%+$68.9M |
| Empyrean Capital Partners, LP | $93.5M | 1,308,000 | 3.09% | 18q | HELD |
| STATE STREET CORP | $87.6M | 1,224,388 | 0.00% | 28q | +1.2%+$1.1M |
| VANGUARD CAPITAL MANAGEMENT LLC | $84.1M | 1,176,511 | 0.00% | 2q | +1.5%+$1.3M |
| GEODE CAPITAL MANAGEMENT, LLC | $69.4M | 969,724 | 0.00% | 28q | +29.7%+$15.9M |
| DIMENSIONAL FUND ADVISORS LP | $65.2M | 911,667 | 0.01% | 28q | +0.8%+$509.1K |
| Woodline Partners LP | $63.2M | 883,540 | 0.20% | 4q | +25.9%+$13.0M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $58.2M | 813,352 | 0.00% | 2q | -8.0%-$5.0M |
| Driehaus Capital Management LLC | $56.4M | 788,901 | 0.33% | new | NEW |
| Avantyr Capital Partners, LP | $54.9M | 767,793 | 2.02% | new | NEW |
| MORGAN STANLEY | $44.6M | 623,422 | 0.00% | 28q | +16.0%+$6.1M |
| SOROS FUND MANAGEMENT LLC | $43.6M | 610,248 | 0.54% | 26q | -5.9%-$2.8M |
| Nuveen, LLC | $43.1M | 602,378 | 0.01% | 6q | +2.4%+$995.1K |
| FEDERATED HERMES, INC. | $41.1M | 574,597 | 0.06% | 8q | +1.1%+$448.9K |
| Allspring Global Investments Holdings, LLC | $39.8M | 553,623 | 0.06% | 5q | +32.1%+$9.7M |
| TWO SIGMA INVESTMENTS, LP | $37.5M | 523,939 | 0.03% | 14q | +9.4%+$3.2M |
| Azora Capital LP | $35.5M | 496,005 | 1.49% | 2q | +50.6%+$11.9M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $28.8M | 403,342 | 0.00% | 28q | -11.0%-$3.6M |
| Systematic Alpha Investments, LLC | $26.5M | 370,108 | 0.71% | 23q | HELD |
| GW&K Investment Management, LLC | $26.4M | 368,935 | 0.21% | 4q | -1.9%-$503.6K |
| Impax Asset Management Group plc | $25.0M | 350,000 | 0.16% | 21q | -57.5%-$33.9M |
| Amundi | $22.7M | 317,315 | 0.01% | new | NEW |
| NORTHERN TRUST CORP | $21.7M | 303,111 | 0.00% | 28q | +8.6%+$1.7M |
| Boston Trust Walden Corp | $19.2M | 268,707 | 0.15% | 2q | -4.6%-$922.4K |
| AQR CAPITAL MANAGEMENT LLC | $18.2M | 254,068 | 0.01% | 28q | +59.1%+$6.8M |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | $17.8M | 249,082 | 0.03% | 3q | +1069.4%+$16.3M |
| GOLDMAN SACHS GROUP INC | $17.5M | 244,568 | 0.00% | 28q | +11.5%+$1.8M |
| FMR LLC | $16.5M | 231,204 | 0.00% | 28q | +8.5%+$1.3M |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | $14.9M | 207,796 | 0.04% | 17q | -21.2%-$4.0M |
| Bank of New York Mellon Corp | $14.7M | 204,912 | 0.00% | 28q | +4.4%+$621.3K |
| PRINCIPAL FINANCIAL GROUP INC | $14.1M | 196,988 | 0.01% | 25q | -3.7%-$539.2K |
| FIRST TRUST ADVISORS LP | $13.9M | 194,899 | 0.01% | 4q | HELD |
| UBS Group AG | $13.9M | 193,687 | 0.00% | 28q | -10.7%-$1.7M |
| VANGUARD FIDUCIARY TRUST CO | $13.6M | 190,801 | 0.00% | 2q | +3.2%+$423.8K |
| Allianz Asset Management GmbH | $12.2M | 170,518 | 0.01% | 7q | -6.0%-$777.8K |
| JACOBS LEVY EQUITY MANAGEMENT, INC | $10.9M | 151,793 | 0.04% | 4q | -52.3%-$11.9M |
| Jupiter Topco LLC | $10.8M | 151,546 | 0.00% | new | FIRST |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $10.7M | 149,259 | 0.00% | 14q | -38.1%-$6.6M |
| BANK OF AMERICA CORP /DE/ | $9.5M | 133,241 | 0.00% | 28q | -2.9%-$284.4K |
| JUPITER ASSET MANAGEMENT LTD | $9.4M | 131,673 | 0.05% | 5q | HELD |
| Public Sector Pension Investment Board | $9.4M | 130,897 | 0.02% | 25q | -11.2%-$1.2M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | $7.5M | 105,367 | 0.01% | 6q | +287.5%+$5.6M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $7.4M | 103,504 | 0.00% | 28q | +53.5%+$2.6M |
| AMERICAN CENTURY COMPANIES INC | $6.8M | 95,664 | 0.00% | 21q | +18.4%+$1.1M |
| Vident Advisory, LLC | $6.6M | 92,774 | 0.05% | 6q | +18.0%+$1.0M |
| SG Americas Securities, LLC | $6.6M | 91,597 | 0.00% | 4q | -84.8%-$36.6M |
| North Reef Capital Management LP | $6.2M | 86,596 | 0.24% | 19q | -60.7%-$9.6M |
| Ghisallo Capital Management LLC | $6.1M | 85,379 | 0.12% | new | NEW |
| Cannell & Spears LLC | $6.0M | 84,330 | 0.11% | 3q | HELD |
| Walleye Capital LLC | $5.9M | 82,585 | 0.02% | 2q | +321.6%+$4.5M |
| Informed Momentum Co LLC | $5.9M | 82,424 | 0.53% | new | NEW |
| JPMORGAN CHASE & CO | $5.9M | 81,372 | 0.00% | 28q | -16.6%-$1.2M |
| CREDIT AGRICOLE S A | $5.7M | 80,000 | 0.01% | 4q | +37.0%+$1.5M |
| AMERIPRISE FINANCIAL INC | $5.6M | 78,746 | 0.00% | 28q | -2.9%-$169.0K |
| LSV ASSET MANAGEMENT | $5.6M | 78,300 | 0.01% | 6q | -4.9%-$286.1K |
| FRANKLIN RESOURCES INC | $5.3M | 74,727 | 0.00% | 9q | +37.8%+$1.5M |
| ALGERT GLOBAL LLC | $5.3M | 74,067 | 0.06% | 16q | -23.4%-$1.6M |
| ENVESTNET ASSET MANAGEMENT INC | $5.1M | 70,624 | 0.00% | 4q | +12.5%+$560.4K |
| Legal & General Group Plc | $4.9M | 68,012 | 0.00% | 28q | +5.8%+$266.3K |
| Linden Thomas Advisory Services, LLC | $4.8M | 66,756 | 0.39% | 12q | +12.3%+$522.7K |
| RHUMBLINE ADVISERS | $4.7M | 65,048 | 0.00% | 6q | -9.8%-$506.9K |
| VICTORY CAPITAL MANAGEMENT INC | $4.6M | 63,862 | 0.00% | 28q | HELD |
| Trexquant Investment LP | $4.5M | 62,669 | 0.03% | 4q | +262.2%+$3.2M |
| CITADEL ADVISORS LLC | $4.4M | 61,940 | 0.00% | 19q | -23.6%-$1.4M |
| Qube Research & Technologies Ltd | $4.0M | 55,830 | 0.00% | 7q | -68.1%-$8.5M |
| THORNBURG INVESTMENT MANAGEMENT INC | $4.0M | 55,757 | 0.04% | 2q | +100.7%+$2.0M |
| Swiss National Bank | $4.0M | 55,626 | 0.00% | 28q | -1.6%-$64.4K |
| Boston Partners | $3.8M | 52,688 | 0.00% | 6q | -8.4%-$346.5K |
| MILLENNIUM MANAGEMENT LLC | $3.7M | 51,885 | 0.00% | 28q | -25.2%-$1.2M |
| Rockefeller Capital Management L.P. | $3.6M | 50,010 | 0.01% | 4q | +10819.2%+$3.5M |
| CITIGROUP INC | $3.1M | 43,839 | 0.00% | 28q | +182.3%+$2.0M |
| EFG International AG | $2.9M | 40,664 | 0.05% | 2q | -1.9%-$55.2K |
| MACKENZIE FINANCIAL CORP | $2.9M | 40,105 | 0.00% | new | NEW |
| PEAK6 LLC | $2.9M CALL | options only | 0.01% | new | OPTIONS |
| Creative Planning | $2.9M | 39,983 | 0.00% | 11q | +31.2%+$680.6K |
| STATE OF WISCONSIN INVESTMENT BOARD | $2.8M | 38,688 | 0.01% | 16q | +9.2%+$233.9K |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | $2.8M | 38,525 | 0.00% | 10q | -4.8%-$138.3K |
| CWA Asset Management Group, LLC | $2.7M | 37,227 | 0.08% | 2q | +11.5%+$274.6K |
| SEI INVESTMENTS CO | $2.6M | 36,368 | 0.00% | 5q | +35.0%+$675.0K |
| PDT Partners, LLC | $2.6M | 36,197 | 0.14% | 17q | +164.3%+$1.6M |
| RAYMOND JAMES FINANCIAL INC | $2.6M | 36,172 | 0.00% | 2q | +389.6%+$2.1M |
| NATIXIS ADVISORS, LLC | $2.6M | 35,916 | 0.00% | 4q | +57.2%+$934.7K |
| Redhawk Wealth Advisors, Inc. | $2.5M | 35,281 | 0.25% | 2q | -12.0%-$344.1K |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $2.5M | 34,481 | 0.00% | 28q | +27.4%+$530.0K |
| Engineers Gate Manager LP | $2.4M | 34,006 | 0.03% | 7q | -35.5%-$1.3M |
| Kendall Capital Management | $2.4M | 33,985 | 0.40% | 5q | -1.4%-$34.0K |
| D. E. Shaw & Co., Inc. | $2.4M | 33,743 | 0.00% | 16q | -40.2%-$1.6M |
| Y-Intercept (Hong Kong) Ltd | $2.3M | 32,525 | 0.05% | 3q | +41.8%+$686.2K |
| Aquatic Capital Management LLC | $2.3M | 31,941 | 0.08% | 2q | +282.7%+$1.7M |
| RENAISSANCE TECHNOLOGIES LLC | $2.3M | 31,651 | 0.00% | 17q | -47.7%-$2.1M |
| HUSSMAN STRATEGIC ADVISORS, INC. | $2.3M | 31,500 | 0.52% | 2q | -25.0%-$751.0K |
| DEUTSCHE BANK AG\ | $2.1M | 29,706 | 0.00% | 28q | -75.2%-$6.4M |
| BNP PARIBAS FINANCIAL MARKETS | $2.1M | 29,343 | 0.00% | 7q | -14.2%-$346.9K |
| Squarepoint Ops LLC | $2.1M | 29,242 | 0.00% | new | NEW |
| Diametric Capital, LP | $2.0M | 27,813 | 0.21% | new | NEW |
| PRUDENTIAL FINANCIAL INC | $2.0M | 27,496 | 0.00% | 28q | +1.7%+$32.9K |
| ALLIANCEBERNSTEIN L.P. | $2.0M | 35,887 | 0.00% | 28q | -5.8%-$119.7K |
Showing the largest 100 of 305 reported holders.
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-03 | Wiater Christina | PAO | Sold | 25,370 | $2.2M ×3 |
Ten percent owners and entities
Usually an institution that crossed a reporting threshold, or a company taking a strategic stake, rather than an individual with a view.
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-17 | PAULSON & CO. INC. | 10% owner | Sold | 1,900,000 | $146.8M |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 67 | $29.5M | 323,234 | 11 | 22 | 16 | 0.0% |
| Q2 2026 | 305 | $2.6B | 36,028,084 | 70 | 98 | 95 | 0.1% |
| Q1 2026 | 255 | $2.0B | 35,950,949 | 32 | 86 | 85 | 0.0% |
| Q4 2025 | 256 | $1.7B | 35,459,370 | 28 | 86 | 96 | 0.0% |
| Q3 2025 | 251 | $1.7B | 35,112,745 | 56 | 82 | 87 | 0.3% |
| Q2 2025 | 217 | $1.3B | 35,792,734 | 43 | 66 | 79 | 0.0% |
| Q1 2025 | 192 | $930.7M | 35,949,610 | 30 | 59 | 65 | 0.0% |
| Q4 2024 | 179 | $994.6M | 37,762,015 | 22 | 58 | 53 | 0.0% |
| Q3 2024 | 172 | $951.6M | 37,434,393 | 23 | 38 | 79 | 0.1% |
| Q2 2024 | 164 | $849.3M | 38,257,166 | 23 | 46 | 57 | 0.1% |
| Q1 2024 | 169 | $926.2M | 40,454,580 | 25 | 48 | 60 | 0.2% |
| Q4 2023 | 170 | $801.2M | 41,776,584 | 20 | 67 | 53 | 0.1% |
| Q3 2023 | 162 | $799.0M | 41,152,021 | 16 | 58 | 59 | 0.2% |
| Q2 2023 | 158 | $864.6M | 41,245,010 | 9 | 53 | 59 | 0.1% |
| Q1 2023 | 166 | $1.1B | 44,558,271 | 26 | 36 | 69 | 0.1% |
| Q4 2022 | 145 | $872.7M | 42,361,066 | 19 | 46 | 55 | 0.1% |
| Q3 2022 | 144 | $659.9M | 44,175,753 | 12 | 47 | 58 | 0.1% |
| Q2 2022 | 145 | $795.0M | 44,094,236 | 21 | 33 | 66 | 0.1% |
| Q1 2022 | 154 | $1.1B | 45,066,798 | 13 | 41 | 84 | 1.9% |
| Q4 2021 | 177 | $1.6B | 62,098,078 | 31 | 36 | 91 | 0.8% |
| Q3 2021 | 178 | $2.5B | 94,176,319 | 31 | 38 | 78 | 0.1% |
| Q2 2021 | 164 | $2.4B | 101,630,432 | 22 | 43 | 76 | 0.1% |
| Q1 2021 | 166 | $2.0B | 98,701,477 | 26 | 57 | 66 | 1.0% |
| Q4 2020 | 163 | $2.0B | 102,062,768 | 29 | 48 | 62 | 0.0% |
| Q3 2020 | 147 | $1.3B | 98,972,477 | 27 | 41 | 62 | 0.0% |
| Q2 2020 | 136 | $1.3B | 101,253,399 | 39 | 46 | 44 | 0.0% |
| Q1 2020 | 119 | $806.7M | 126,260,260 | 13 | 35 | 53 | 0.0% |
| Q4 2019 | 141 | $1.0B | 100,903,762 | 22 | 50 | 51 | 0.0% |
| Q3 2019 | 126 | $1.8B | 181,297,885 | 120 | 1 | 2 | 0.0% |
| Q2 2019 | 9 | $808.3M | 70,839,140 | 9 | 0 | 0 | 0.0% |
