Adicet BioACET
13F holders, Q2 2026 (June 30)56holders +8
14new positions
6sold out
2famous investors
$8.64avg. 13F price*
At the end of Q2 2026, 56 institutions reported holding Adicet Bio Inc. (ACET) in their 13F filings, up 8 from Q1 2026. 14 opened new positions and 6 sold out. The largest holders were Ra Capital Management, L.P. ($8.1M), Orbimed Advisors LLC ($7.3M) and Franklin Resources Inc. ($5.4M). 2 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Adicet Bio Inc.
- CUSIP
- 007002207
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 14 | $4.9M |
| Exits | 6 | $4.4M |
All 13F filers, Q1 2026 → Q2 2026: 865,093 shares bought and 1,105,147 shares sold, net −240,054 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 56 holders
| Ra Capital Management, L.P. | 0.07% | Reduce -21.1% | 932,624 | $8.1M |
| Orbimed Advisors LLC | 0.14% | Reduce -17.8% | 844,787 | $7.3M |
| Franklin Resources Inc. | 0.00% | No change | 626,571 | $5.4M |
| Citadel Advisors | 0.00% | Add +13.3% | 432,738 | $3.7M |
| Vanguard Capital Management LLC | 0.00% | Add +2.0% | 343,228 | $3.0M |
| Adage Capital Partners Gp, L.L.C. | 0.00% | No change | 274,375 | $2.4M |
| Renaissance Technologies | 0.00% | Add +14.3% | 265,945 | $2.3M |
| Stonepine Capital Management, LLC | 1.61% | Add +10.6% | 245,518 | $2.1M |
| Alyeska Investment Group, L.P. | 0.00% | No change | 203,799 | $1.8M |
| Schonfeld Strategic Advisors LLC | 0.01% | New | 195,514 | $1.7M |
| Carlyle Group Inc. | 0.02% | No change | 184,295 | $1.6M |
| NEXTBio Capital Management LP | 0.63% | No change | 157,827 | $1.4M |
| Acadian Asset Management LLC | 0.00% | Add +5.7% | 124,832 | $1.1M |
| Two Sigma Investments, LP | 0.00% | Add +124.7% | 96,839 | $837K |
| Geode Capital Management, LLC | 0.00% | Reduce -5.4% | 95,634 | $827K |
| DAFNA Capital Management LLC | 0.15% | No change | 93,812 | $811K |
| Bridgeway Capital Management, LLC | 0.01% | New | 85,959 | $743K |
| Marshall Wace, LLP | 0.00% | New | 79,488 | $687K |
| Trexquant Investment LP | 0.00% | Add +78.6% | 78,002 | $674K |
| Jane Street Group, LLC | 0.00% | Add +90.3% | 70,561 | $610K |
| Burkehill Global Management, LP | 0.02% | No change | 62,500 | $540K |
| BlackRock, Inc. | 0.00% | Add +69.8% | 62,126 | $537K |
| Regeneron Pharmaceuticals, Inc. | 0.29% | New | 60,511 | $523K |
| Rangeley Capital, LLC | 0.43% | Reduce -9.1% | 50,892 | $440K |
| Vanguard Fiduciary Trust Co. | 0.00% | Add +0.7% | 50,670 | $438K |
| RBF Capital, LLC | 0.01% | No change | 38,582 | $333K |
| State Street Corp. | 0.00% | No change | 36,222 | $313K |
| Quadrature Capital Ltd | 0.00% | New | 36,193 | $313K |
| Dimensional Fund Advisors LP | 0.00% | Add +193.2% | 31,603 | $273K |
| UBS Group AG | 0.00% | Reduce -22.3% | 29,817 | $258K |
| Verdad Advisers, LP | 0.21% | New | 25,200 | $218K |
| XTX Topco Ltd | 0.00% | Add +27.0% | 24,284 | $210K |
| Johnson & Johnson | 0.02% | No change | 22,779 | $197K |
| Susquehanna International Group, LLP | 0.00% | New | 20,650 | $178K |
| Prelude Capital Management, LLC | 0.01% | New | 18,550 | $160K |
| Northern Trust Corp. | 0.00% | Reduce -4.0% | 18,436 | $159K |
| Occudo Quantitative Strategies LP | 0.01% | Add +10.2% | 16,636 | $144K |
| Squarepoint Ops LLC | 0.00% | New | 15,254 | $132K |
| Vontobel Holding Ltd. | 0.00% | Reduce -3.3% | 13,776 | $119K |
| Axq Capital, LP | 0.01% | New | 10,991 | $95K |
| Jump Financial, LLC | 0.00% | New | 10,942 | $95K |
| Arax Advisory Partners | 0.00% | New | 6,000 | $52K |
| Vanguard Global Advisers, LLC | 0.00% | No change | 5,221 | $45K |
| Simplex Trading, LLC | 0.00% | Add +245.6% | 4,814 | $42K |
| Morgan Stanley | 0.00% | Reduce -34.4% | 2,291 | $20K |
| Royal Bank of Canada | 0.00% | Add +0.1% | 1,701 | $15K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -80.5% | 277 | $2K |
| Avion Wealth | 0.00% | No change | 246 | $2K |
| JPMorgan Chase & Co. | 0.00% | Add +2350.0% | 196 | $2K |
| BNP Paribas Financial Markets | 0.00% | No change | 50 | $432 |
| Caitong International Asset Management Co., Ltd | 0.00% | Add +1466.7% | 47 | $406 |
| SBI Securities Co., Ltd. | 0.00% | Add +26.3% | 24 | $207 |
| National Bank of Canada | 0.00% | No change | 17 | $146 |
| FMR LLC | 0.00% | New | 6 | $52 |
| TD Waterhouse Canada Inc. | 0.00% | New | 3 | $26 |
| Danske Bank A/S | 0.00% | No change | 1 | $9 |
"% of holder's portfolio" is ACET's weight in each manager's 13F, not the share of Adicet Bio Inc. the manager owns.