Adicet Bio, Inc. - ACET
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ORBIMED ADVISORS LLC | History | Reduced | 1,027,944 | 8,655 | 0.18% | 0.22% | 1 | -10,419,196 | -91.02% | Q4 2025 | Feb 17, 2026 |
| RA CAPITAL MANAGEMENT, L.P. | History | Reduced | 948,249 | 7,984 | 0.08% | 0.08% | 2 | -6,592,751 | -87.43% | Q4 2025 | Feb 17, 2026 |
| FRANKLIN RESOURCES INC | History | New | 626,571 | 5,275 | 0.0% | — | 3 | +626,571 | New | Q4 2025 | Feb 11, 2026 |
| Woodline Partners LP | History | New | 625,000 | 5,262 | 0.02% | — | 4 | +625,000 | New | Q4 2025 | Feb 17, 2026 |
| VANGUARD GROUP INC | History | Reduced | 291,277 | 2,452 | 0.0% | 0.0% | 5 | -2,981,245 | -91.1% | Q4 2025 | Jan 29, 2026 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | History | New | 274,375 | 2,310 | 0.0% | — | 6 | +274,375 | New | Q4 2025 | Feb 17, 2026 |
| Prosight Management, LP | History | New | 250,244 | 2,107 | 0.44% | — | 7 | +250,244 | New | Q4 2025 | Feb 13, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Reduced | 242,945 | 2,045 | 0.0% | 0.0% | 8 | -1,586,004 | -86.72% | Q4 2025 | Feb 12, 2026 |
| GOLDMAN SACHS GROUP INC | History | Reduced | 234,510 | 1,974 | 0.0% | 0.0% | 9 | -3,517,107 | -93.75% | Q4 2025 | Mar 25, 2026 |
| Stonepine Capital Management, LLC | History | New | 220,011 | 1,852 | 1.35% | — | 10 | +220,011 | New | Q4 2025 | Feb 13, 2026 |
| Alyeska Investment Group, L.P. | History | Reduced | 203,799 | 1,715 | 0.0% | 0.0% | 11 | -451,866 | -68.92% | Q4 2025 | Feb 13, 2026 |
| Carlyle Group Inc. | History | Reduced | 184,295 | 1,544 | 0.01% | 0.06% | 12 | -2,764,423 | -93.75% | Q4 2025 | Feb 13, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | History | Reduced | 181,395 | 1,525 | 0.0% | 0.0% | 13 | -2,084,096 | -91.99% | Q4 2025 | Feb 10, 2026 |
| NEXTBio Capital Management LP | History | New | 157,827 | 1,328 | 0.78% | — | 14 | +157,827 | New | Q4 2025 | Feb 13, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | Reduced | 144,796 | 1,219 | 0.0% | 0.0% | 15 | -709,772 | -83.06% | Q4 2025 | Feb 17, 2026 |
| ADAR1 Capital Management, LLC | History | New | 128,646 | 1,083 | 0.08% | — | 16 | +128,646 | New | Q4 2025 | Feb 18, 2026 |
| TWO SIGMA ADVISERS, LP | History | Reduced | 111,336 | 937 | 0.0% | 0.0% | 17 | -669,646 | -85.74% | Q4 2025 | Feb 17, 2026 |
| CITADEL ADVISORS LLC | History | Reduced | 107,814 | 907 | 0.0% | 0.0% | 18 | -476,134 | -81.54% | Q4 2025 | Feb 17, 2026 |
| DAFNA Capital Management LLC | History | New | 93,812 | 789 | 0.18% | — | 19 | +93,812 | New | Q4 2025 | Feb 17, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Reduced | 88,856 | 748 | 0.0% | 0.0% | 20 | -617,478 | -87.42% | Q4 2025 | Feb 09, 2026 |
| Burkehill Global Management, LP | History | New | 62,500 | 526 | 0.03% | — | 21 | +62,500 | New | Q4 2025 | Feb 17, 2026 |
| REGENERON PHARMACEUTICALS, INC. | History | Reduced | 60,511 | 509 | 1.51% | 0.11% | 22 | -907,672 | -93.75% | Q4 2025 | Feb 06, 2026 |
| LUMINUS MANAGEMENT LLC | History | New | 59,558 | 501 | 0.44% | — | 23 | +59,558 | New | Q4 2025 | Feb 17, 2026 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | History | Reduced | 56,350 | 474 | 0.01% | 0.02% | 24 | -845,250 | -93.75% | Q4 2025 | Feb 17, 2026 |
| Squarepoint Ops LLC | History | Added to | 55,723 | 469 | 0.0% | 0.0% | 25 | +9,296 | 20.02% | Q4 2025 | Feb 13, 2026 |
| RBF Capital, LLC | History | Reduced | 38,582 | 324 | 0.01% | 0.02% | 26 | -578,737 | -93.75% | Q4 2025 | Feb 17, 2026 |
| BlackRock, Inc. | History | Reduced | 36,585 | 308 | 0.0% | 0.0% | 27 | -548,792 | -93.75% | Q4 2025 | Feb 12, 2026 |
| Maven Securities LTD | History | New | 31,250 | 263 | 0.01% | — | 28 | +31,250 | New | Q4 2025 | Feb 13, 2026 |
| STATE STREET CORP | History | Reduced | 25,896 | 218 | 0.0% | 0.0% | 29 | -218,290 | -89.39% | Q4 2025 | Feb 13, 2026 |
| BARCLAYS PLC | History | Reduced | 25,000 | 210 | 0.0% | 0.0% | 30 | -275,000 | -91.67% | Q4 2025 | Feb 13, 2026 |
| Rangeley Capital, LLC | History | Reduced | 25,001 | 210 | 0.17% | 0.05% | 31 | -49,999 | -66.67% | Q4 2025 | Feb 17, 2026 |
| JOHNSON & JOHNSON | History | Reduced | 22,779 | 191 | 0.03% | 0.06% | 32 | -341,693 | -93.75% | Q4 2025 | Mar 18, 2026 |
| XTX Topco Ltd | History | Reduced | 18,610 | 156 | 0.0% | 0.0% | 33 | -39,529 | -67.99% | Q4 2025 | Feb 17, 2026 |
| GSA CAPITAL PARTNERS LLP | History | New | 17,763 | 150 | 0.01% | — | 34 | +17,763 | New | Q4 2025 | Feb 06, 2026 |
| NORTHERN TRUST CORP | History | Reduced | 14,067 | 118 | 0.0% | 0.0% | 35 | -126,306 | -89.98% | Q4 2025 | Feb 17, 2026 |
| TANG CAPITAL MANAGEMENT LLC | History | Reduced | 6,158 | 51 | 0.0% | 0.26% | 36 | -8,217,454 | -99.93% | Q4 2025 | Feb 17, 2026 |
| FNY Investment Advisers, LLC | History | New | 6,100 | 51 | 0.01% | — | 37 | +6,100 | New | Q4 2025 | Jan 16, 2026 |
| ROYAL BANK OF CANADA | History | New | 5,449 | 46 | 0.0% | — | 38 | +5,449 | New | Q4 2025 | Feb 17, 2026 |
| UBS Group AG | History | Reduced | 3,797 | 31 | 0.0% | 0.0% | 39 | -17,641 | -82.29% | Q4 2025 | Jan 29, 2026 |
| MORGAN STANLEY | History | Reduced | 3,040 | 25 | 0.0% | 0.0% | 40 | -70,642 | -95.87% | Q4 2025 | Feb 13, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Reduced | 1,288 | 10 | 0.0% | 0.0% | 41 | -19,319 | -93.75% | Q4 2025 | Feb 17, 2026 |
| Tower Research Capital LLC (TRC) | History | Reduced | 1,072 | 9 | 0.0% | 0.0% | 42 | -3,920 | -78.53% | Q4 2025 | Feb 17, 2026 |
| HOLLENCREST CAPITAL MANAGEMENT | History | Reduced | 250 | 2 | 0.0% | 0.0% | 43 | -1,750 | -87.5% | Q4 2025 | Feb 12, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -565,953 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Schonfeld Strategic Advisors LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -479,108 | -100.0% | Q3 2025 | Nov 14, 2025 |
| WEALTHEDGE INVESTMENT ADVISORS, LLC | History | Closed out | 0 | 0 | — | 0.09% | — | -300,054 | -100.0% | Q3 2025 | Nov 12, 2025 |
| JANE STREET GROUP, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -186,200 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Vontobel Holding Ltd. | History | Closed out | 0 | 0 | — | 0.0% | — | -80,000 | -100.0% | Q3 2025 | Oct 15, 2025 |
| Virtu Financial LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -79,916 | -100.0% | Q3 2025 | Nov 14, 2025 |
| DIMENSIONAL FUND ADVISORS LP | History | Closed out | 0 | 0 | — | 0.0% | — | -52,963 | -100.0% | Q3 2025 | Nov 12, 2025 |
| MARSHALL WACE, LLP | History | Closed out | 0 | 0 | — | 0.0% | — | -51,733 | -100.0% | Q3 2025 | Nov 13, 2025 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Closed out | 0 | 0 | — | 0.0% | — | -40,370 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Abacus Planning Group, Inc. | History | Closed out | 0 | 0 | — | 0.0% | — | -36,764 | -100.0% | Q3 2025 | Oct 22, 2025 |
| TWO SIGMA SECURITIES, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -25,274 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Qube Research & Technologies Ltd | History | Closed out | 0 | 0 | — | 0.0% | — | -20,257 | -100.0% | Q3 2025 | Nov 14, 2025 |
| HRT FINANCIAL LP | History | Closed out | 0 | 0 | — | 0.0% | — | -18,627 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Mariner, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -14,850 | -100.0% | Q3 2025 | Nov 14, 2025 |
| RAYMOND JAMES FINANCIAL INC | History | Closed out | 0 | 0 | — | 0.0% | — | -13,265 | -100.0% | Q3 2025 | Nov 14, 2025 |
| TOTH FINANCIAL ADVISORY CORP | History | Closed out | 0 | 0 | — | 0.0% | — | -1,600 | -100.0% | Q3 2025 | Oct 09, 2025 |
| BNP PARIBAS FINANCIAL MARKETS | History | Reduced | 50 | 0 | — | — | — | -846 | -94.42% | Q4 2025 | Feb 10, 2026 |
| SBI Securities Co., Ltd. | History | Reduced | 19 | 0 | — | — | — | -808 | -97.7% | Q4 2025 | Feb 03, 2026 |
| JPMORGAN CHASE & CO | History | Reduced | 12 | 0 | — | — | — | -759 | -98.44% | Q4 2025 | Feb 11, 2026 |
| FMR LLC | History | Reduced | 34 | 0 | — | — | — | -742 | -95.62% | Q4 2025 | Feb 17, 2026 |
| Advisory Services Network, LLC | History | Closed out | 0 | 0 | — | — | — | -316 | -100.0% | Q3 2025 | Nov 18, 2025 |
| CITIGROUP INC | History | Closed out | 0 | 0 | — | — | — | -166 | -100.0% | Q3 2025 | Nov 10, 2025 |
| SIMPLEX TRADING, LLC | History | New | 87 | 0 | — | — | — | +87 | New | Q4 2025 | Feb 11, 2026 |
| OSAIC HOLDINGS, INC. | History | Closed out | 0 | 0 | — | — | — | -10 | -100.0% | Q3 2025 | Nov 14, 2025 |
| DANSKE BANK A/S | History | New | 1 | 0 | — | — | — | +1 | New | Q4 2025 | Feb 02, 2026 |