Acadian Asset Management Inc. (AAMI) — Institutional Holders, Q2 2026
304 institutional investment managers reported a AAMI position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $2.6B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
AAMI in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- Invesco Ltd.Added · +963,829 sh+$68.9M
- DRIEHAUS CAPITAL MANAGEMENTNew · +788,901 sh+$56.4M
- Avantyr Capital PartnersNew · +767,793 sh+$54.9M
- AmundiNew · +317,315 sh+$22.7M
- HEALTHCARE OF ONTARIO PENSION PLAN FUNDAdded · +227,782 sh+$16.3M
Biggest sellers
- PAULSONTrimmed · -1,900,000 sh-$135.9M
- SG Americas SecuritiesTrimmed · -512,086 sh-$36.6M
- JENNISON ASSOCIATESTrimmed · -495,637 sh-$35.4M
- Impax Asset Management Group plcTrimmed · -473,323 sh-$33.9M
- JACOBS LEVY EQUITY MANAGEMENTTrimmed · -166,338 sh-$11.9M
AAMI 13F holders ranked 1–100 of 304
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | PAULSON#1 · 5,843,282 sh | 5,843,282 | $417.9M | 16.23% | -24.5% |
| 2 | BlackRock#2 · 4,486,535 sh | 4,486,535 | $320.9M | <0.01% | -1.9% |
| 3 | JENNISON ASSOCIATES#3 · 1,526,570 sh | 1,526,570 | $109.2M | 0.07% | -24.5% |
| 4 | Invesco Ltd.#4 · 1,376,531 sh | 1,376,531 | $98.4M | <0.01% | +233.5% |
| 5 | Empyrean Capital Partners#5 · 1,308,000 sh | 1,308,000 | $93.5M | 3.09% | 0.0% |
| 6 | STATE STREET#6 · 1,224,388 sh | 1,224,388 | $87.6M | <0.01% | +1.2% |
| 7 | VANGUARD CAPITAL MANAGEMENT#7 · 1,176,511 sh | 1,176,511 | $84.1M | <0.01% | +1.5% |
| 8 | GEODE CAPITAL MANAGEMENT#8 · 969,724 sh | 969,724 | $69.4M | <0.01% | +29.7% |
| 9 | DIMENSIONAL FUND ADVISORS#9 · 911,667 sh | 911,667 | $65.2M | 0.01% | +0.8% |
| 10 | Woodline Partners#10 · 883,540 sh | 883,540 | $63.2M | 0.20% | +25.9% |
| 11 | VANGUARD PORTFOLIO MANAGEMENT#11 · 813,352 sh | 813,352 | $58.2M | <0.01% | -8.0% |
| 12 | DRIEHAUS CAPITAL MANAGEMENT#12 · 788,901 sh | 788,901 | $56.4M | 0.33% | New |
| 13 | Avantyr Capital Partners#13 · 767,793 sh | 767,793 | $54.9M | 2.02% | New |
| 14 | MORGAN STANLEY#14 · 623,422 sh | 623,422 | $44.6M | <0.01% | +16.0% |
| 15 | SOROS FUND MANAGEMENT#15 · 610,248 sh | 610,248 | $43.6M | 0.54% | -5.9% |
| 16 | Nuveen#16 · 602,378 sh | 602,378 | $43.1M | 0.01% | +2.4% |
| 17 | FEDERATED HERMES#17 · 574,597 sh | 574,597 | $41.1M | 0.06% | +1.1% |
| 18 | Allspring Global Investments#18 · 553,623 sh | 553,623 | $39.8M | 0.06% | +32.1% |
| 19 | TWO SIGMA INVESTMENTS#19 · 523,939 sh | 523,939 | $37.5M | 0.03% | +9.4% |
| 20 | Azora Capital#20 · 496,005 sh | 496,005 | $35.5M | 1.49% | +50.6% |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT#21 · 403,342 sh | 403,342 | $28.8M | <0.01% | -11.0% |
| 22 | Systematic Alpha Investments#22 · 370,108 sh | 370,108 | $26.5M | 0.71% | 0.0% |
| 23 | GW&K Investment Management#23 · 368,935 sh | 368,935 | $26.4M | 0.21% | -1.9% |
| 24 | Impax Asset Management Group plc#24 · 350,000 sh | 350,000 | $25.0M | 0.16% | -57.5% |
| 25 | Amundi#25 · 317,315 sh | 317,315 | $22.7M | <0.01% | New |
| 26 | NORTHERN#26 · 303,111 sh | 303,111 | $21.7M | <0.01% | +8.6% |
| 27 | Boston Walden#27 · 268,707 sh | 268,707 | $19.2M | 0.15% | -4.6% |
| 28 | AQR CAPITAL MANAGEMENT#28 · 254,068 sh | 254,068 | $18.2M | <0.01% | +59.1% |
| 29 | HEALTHCARE OF ONTARIO PENSION PLAN FUND#29 · 249,082 sh | 249,082 | $17.8M | 0.03% | +1069.4% |
| 30 | GOLDMAN SACHS GROUP#30 · 244,568 sh | 244,568 | $17.5M | <0.01% | +11.5% |
| 31 | FMR#31 · 231,204 sh | 231,204 | $16.5M | <0.01% | +8.5% |
| 32 | WILLIAM BLAIR INVESTMENT MANAGEMENT#32 · 207,796 sh | 207,796 | $14.9M | 0.04% | -21.2% |
| 33 | Bank of New York Mellon#33 · 204,912 sh | 204,912 | $14.7M | <0.01% | +4.4% |
| 34 | PRINCIPAL FINANCIAL GROUP#34 · 196,988 sh | 196,988 | $14.1M | <0.01% | -3.7% |
| 35 | FIRST ADVISORS#35 · 194,899 sh | 194,899 | $13.9M | <0.01% | +0.4% |
| 36 | UBS Group AG#36 · 193,687 sh | 193,687 | $13.9M | <0.01% | -10.7% |
| 37 | VANGUARD FIDUCIARY#37 · 190,801 sh | 190,801 | $13.6M | <0.01% | +3.2% |
| 38 | Allianz Asset Management GmbH#38 · 161,768 sh | 161,768 | $11.3M | 0.01% | -10.8% |
| 39 | JACOBS LEVY EQUITY MANAGEMENT#39 · 151,793 sh | 151,793 | $10.9M | 0.04% | -52.3% |
| 40 | Jupiter Topco#40 · 151,546 sh | 151,546 | $10.8M | <0.01% | — |
| 41 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP#41 · 149,259 sh | 149,259 | $10.7M | <0.01% | -38.1% |
| 42 | BANK OF AMERICA#42 · 133,241 sh | 133,241 | $9.5M | <0.01% | -2.9% |
| 43 | JUPITER ASSET MANAGEMENT LTD#43 · 131,673 sh | 131,673 | $9.4M | 0.05% | 0.0% |
| 44 | PUBLIC SECTOR PENSION INVESTMENT BOARD#44 · 130,897 sh | 130,897 | $9.4M | 0.02% | -11.2% |
| 45 | Universal- Beteiligungs- und Servicegesellschaft mbH#45 · 105,367 sh | 105,367 | $7.5M | 0.01% | +287.5% |
| 46 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#46 · 103,504 sh | 103,504 | $7.4M | <0.01% | +53.5% |
| 47 | AMERICAN CENTURY COMPANIES#47 · 95,664 sh | 95,664 | $6.8M | <0.01% | +18.4% |
| 48 | Vident Advisory#48 · 92,774 sh | 92,774 | $6.6M | 0.05% | +18.0% |
| 49 | SG Americas Securities#49 · 91,597 sh | 91,597 | $6.6M | <0.01% | -84.8% |
| 50 | North Reef Capital Management#50 · 86,596 sh | 86,596 | $6.2M | 0.24% | -60.7% |
| 51 | Ghisallo Capital Management#51 · 85,379 sh | 85,379 | $6.1M | 0.12% | New |
| 52 | Spears Abacus Advisors#52 · 84,330 sh | 84,330 | $6.0M | 0.11% | -0.2% |
| 53 | Walleye Capital#53 · 82,585 sh | 82,585 | $5.9M | 0.02% | +321.6% |
| 54 | Informed Momentum#54 · 82,424 sh | 82,424 | $5.9M | 0.53% | New |
| 55 | JPMORGAN CHASE#55 · 81,372 sh | 81,372 | $5.9M | <0.01% | -16.6% |
| 56 | CREDIT AGRICOLE S A#56 · 80,000 sh | 80,000 | $5.7M | 0.01% | +37.0% |
| 57 | AMERIPRISE FINANCIAL#57 · 78,746 sh | 78,746 | $5.6M | <0.01% | -2.9% |
| 58 | LSV ASSET MANAGEMENT#58 · 78,300 sh | 78,300 | $5.6M | 0.01% | -4.9% |
| 59 | FRANKLIN RESOURCES#59 · 74,727 sh | 74,727 | $5.3M | <0.01% | +37.8% |
| 60 | ALGERT GLOBAL#60 · 74,067 sh | 74,067 | $5.3M | 0.06% | -23.4% |
| 61 | ENVESTNET ASSET MANAGEMENT#61 · 70,624 sh | 70,624 | $5.1M | <0.01% | +12.5% |
| 62 | Legal & General Group Plc#62 · 68,012 sh | 68,012 | $4.9M | <0.01% | +5.8% |
| 63 | Linden Thomas Advisory Services#63 · 66,756 sh | 66,756 | $4.8M | — | +12.3% |
| 64 | RHUMBLINE ADVISERS#64 · 65,048 sh | 65,048 | $4.7M | <0.01% | -9.8% |
| 65 | VICTORY CAPITAL MANAGEMENT#65 · 63,862 sh | 63,862 | $4.6M | <0.01% | +0.5% |
| 66 | Trexquant Investment#66 · 62,669 sh | 62,669 | $4.5M | 0.03% | +262.2% |
| 67 | CITADEL ADVISORS#67 · 61,940 sh | 61,940 | $4.4M | <0.01% | -23.6% |
| 68 | Qube Research & Technologies Ltd#68 · 55,830 sh | 55,830 | $4.0M | <0.01% | -68.1% |
| 69 | THORNBURG INVESTMENT MANAGEMENT#69 · 55,757 sh | 55,757 | $4.0M | 0.04% | +100.7% |
| 70 | Swiss National Bank#70 · 55,626 sh | 55,626 | $4.0M | <0.01% | -1.6% |
| 71 | Boston Partners#71 · 52,688 sh | 52,688 | $3.8M | <0.01% | -8.4% |
| 72 | MILLENNIUM MANAGEMENT#72 · 51,885 sh | 51,885 | $3.7M | <0.01% | -25.2% |
| 73 | Rockefeller Capital Management L.P.#73 · 50,010 sh | 50,010 | $3.6M | <0.01% | New |
| 74 | CITIGROUP#74 · 43,839 sh | 43,839 | $3.1M | <0.01% | +182.3% |
| 75 | EFG International AG#75 · 40,664 sh | 40,664 | $2.9M | 0.05% | -1.9% |
| 76 | MACKENZIE FINANCIAL#76 · 40,105 sh | 40,105 | $2.9M | <0.01% | New |
| 77 | Creative Planning#77 · 39,983 sh | 39,983 | $2.9M | <0.01% | +31.2% |
| 78 | STATE OF WISCONSIN INVESTMENT BOARD#78 · 38,688 sh | 38,688 | $2.8M | <0.01% | +9.2% |
| 79 | STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM#79 · 38,525 sh | 38,525 | $2.8M | <0.01% | -4.8% |
| 80 | CWA Asset Management Group#80 · 37,227 sh | 37,227 | $2.7M | — | +11.5% |
| 81 | SEI INVESTMENTS#81 · 36,368 sh | 36,368 | $2.6M | <0.01% | +35.0% |
| 82 | PDT Partners#82 · 36,197 sh | 36,197 | $2.6M | 0.14% | +164.3% |
| 83 | RAYMOND JAMES FINANCIAL#83 · 36,172 sh | 36,172 | $2.6M | <0.01% | +389.6% |
| 84 | NATIXIS ADVISORS#84 · 35,916 sh | 35,916 | $2.6M | <0.01% | +57.2% |
| 85 | VIRGINIA RETIREMENT SYSTEMS ET Al#85 · 35,400 sh | 35,400 | $2.5M | <0.01% | New |
| 86 | Redhawk Wealth Advisors#86 · 35,281 sh | 35,281 | $2.5M | — | -12.0% |
| 87 | Engineers Gate Manager#87 · 34,006 sh | 34,006 | $2.4M | 0.03% | -35.5% |
| 88 | Kendall Capital Management#88 · 33,985 sh | 33,985 | $2.4M | — | -1.4% |
| 89 | D. E. Shaw#89 · 33,743 sh | 33,743 | $2.4M | <0.01% | -40.2% |
| 90 | Y-Intercept (Hong Kong) Ltd#90 · 32,525 sh | 32,525 | $2.3M | — | +41.8% |
| 91 | Aquatic Capital Management#91 · 31,941 sh | 31,941 | $2.3M | 0.08% | +282.7% |
| 92 | RENAISSANCE TECHNOLOGIES#92 · 31,651 sh | 31,651 | $2.3M | <0.01% | -47.7% |
| 93 | HUSSMAN STRATEGIC ADVISORS#93 · 31,500 sh | 31,500 | $2.3M | 0.52% | -25.0% |
| 94 | DEUTSCHE BANK AG\#94 · 29,706 sh | 29,706 | $2.1M | <0.01% | -75.2% |
| 95 | BNP PARIBAS FINANCIAL MARKETS#95 · 29,343 sh | 29,343 | $2.1M | <0.01% | -14.2% |
| 96 | Squarepoint Ops#96 · 29,242 sh | 29,242 | $2.1M | <0.01% | New |
| 97 | Diametric Capital#97 · 27,813 sh | 27,813 | $2.0M | 0.21% | New |
| 98 | PRUDENTIAL FINANCIAL#98 · 27,496 sh | 27,496 | $2.0M | <0.01% | +1.7% |
| 99 | ALLIANCEBERNSTEIN L.P.#99 · 35,887 sh | 35,887 | $2.0M | <0.01% | -5.8% |
| 100 | XTX Topco Ltd#100 · 26,825 sh | 26,825 | $1.9M | 0.02% | +445.1% |
Funds that sold out of AAMI in Q2 2026 (18)
Held AAMI at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| Man Group plc118,071 sh | 118,071 | $6.4M |
| Karl Kapital90,048 sh | 90,048 | $4.9M |
| KESTREL INVESTMENT MANAGEMENT62,381 sh | 62,381 | $3.4M |
| Assenagon Asset Management S.A.45,836 sh | 45,836 | $2.5M |
| Susquehanna Portfolio Strategies35,357 sh | 35,357 | $1.9M |
| JANE STREET GROUP31,897 sh | 31,897 | $1.7M |
| HRT FINANCIAL25,892 sh | 25,892 | $1.4M |
| LPL Financial23,373 sh | 23,373 | $1.3M |
| IEQ CAPITAL6,839 sh | 6,839 | $372.2K |
| PANAGORA ASSET MANAGEMENT4,048 sh | 4,048 | $220.3K |
| QUADRANT CAPITAL GROUP3,034 sh | 3,034 | $131.5K |
| MAI Capital Management467 sh | 467 | $25.4K |
| Root Financial Partners77 sh | 77 | $4.2K |
| Sound Income Strategies63 sh | 63 | $3.5K |
| Keystone Financial Group45 sh | 45 | $2.5K |
| TWIN PEAKS WEALTH ADVISORS41 sh | 41 | $2.2K |
| Harvest Fund Management , Ltd37 sh | 37 | $2.0K |
| Annis Gardner Whiting Capital Advisors10 sh | 10 | $545.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.