Adicet Bio, Inc.
ACET- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001720580
No open-market purchases or sales by Adicet Bio, Inc. insiders were filed in the last 90 days; 56 institutions reported holding it in 13F filings for Q2 2026, worth $52.8M in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in Adicet Bio, Inc. as of Jun 30, 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
- 56
- +7 vs. Q1 2026
- Shares held
- 6.11M
- −300.6K (−4.7%) vs. Q1 2026
- Total value
- $52.8M
- +$9.13M (+20.9%) vs. Q1 2026
- New holders
- 13
- 18 more added
- Sold out
- 6
- 9 more reduced
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ACET 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 | 56 | $52.8M |
| Q1 2026 | 49 | $43.7M |
| Q4 2025 | 49 | $56.9M |
| Q3 2025 | 54 | $41.6M |
| Q2 2025 | 49 | $31.5M |
| Q1 2025 | 56 | $42.0M |
| Q4 2024 | 64 | $55.4M |
| Q3 2024 | 64 | $82.4M |
| Q2 2024 | 86 | $77.4M |
| Q1 2024 | 98 | $195.9M |
| Q4 2023 | 77 | $68.4M |
| Q3 2023 | 84 | $48.9M |
| Q2 2023 | 95 | $90.4M |
| Q1 2023 | 107 | $231.3M |
| Q4 2022 | 100 | $375.7M |
| Q3 2022 | 102 | $590.7M |
| Q2 2022 | 101 | $555.9M |
| Q1 2022 | 88 | $660.4M |
| Q4 2021 | 81 | $531.9M |
| Q3 2021 | 58 | $156.1M |
| Q2 2021 | 66 | $218.1M |
| Q1 2021 | 54 | $266.3M |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Adicet Bio, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Ra Capital Management, L.P. | 932,624 | $8.06M | 0.07% | −250,000−21.1% | Reduced |
| OrbiMed Advisors LLC | 844,787 | $7.30M | 0.14% | −183,157−17.8% | Reduced |
| Franklin Resources Inc | 626,571 | $5.41M | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 432,738 | $3.74M | 0.00% | +50,915+13.3% | Added |
| Vanguard Capital Management LLC | 343,228 | $2.97M | 0.00% | +6,704+2.0% | Added |
| Adage Capital Partners GP, L.L.C. | 274,375 | $2.37M | 0.00% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 265,945 | $2.30M | 0.00% | +33,354+14.3% | Added |
| Stonepine Capital Management, LLC | 245,518 | $2.12M | 1.61% | +23,563+10.6% | Added |
| Alyeska Investment Group, L.P. | 203,799 | $1.76M | 0.00% | 00.0% | Unchanged |
| Schonfeld Strategic Advisors LLC | 195,514 | $1.69M | 0.01% | +195,514 | New |
| Carlyle Group Inc. | 184,295 | $1.59M | 0.02% | 00.0% | Unchanged |
| NEXTBio Capital Management LP | 157,827 | $1.36M | 0.63% | 00.0% | Unchanged |
| Acadian Asset Management LLC | 124,832 | $1.08M | 0.00% | +6,694+5.7% | Added |
| Two Sigma Investments, LP | 96,839 | $836.7K | 0.00% | +53,733+124.7% | Added |
| Geode Capital Management, LLC | 95,634 | $826.7K | 0.00% | −5,501−5.4% | Reduced |
| DAFNA Capital Management LLC | 93,812 | $810.5K | 0.15% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 85,959 | $742.7K | 0.01% | +85,959 | New |
| Marshall Wace, LLP | 79,488 | $686.8K | 0.00% | +79,488 | New |
| Trexquant Investment LP | 78,002 | $673.9K | 0.00% | +34,336+78.6% | Added |
| Jane Street Group, LLC | 70,561 | $609.6K | 0.00% | +33,477+90.3% | Added |
| Burkehill Global Management, LP | 62,500 | $540.0K | 0.02% | 00.0% | Unchanged |
| BlackRock, Inc. | 62,126 | $536.8K | 0.00% | +25,541+69.8% | Added |
| Regeneron Pharmaceuticals, Inc. | 60,511 | $522.8K | 0.30% | 00.0% | Unchanged |
| Rangeley Capital, LLC | 50,892 | $439.7K | 0.41% | −5,108−9.1% | Reduced |
| Vanguard Fiduciary Trust Co | 50,670 | $437.8K | 0.00% | +336+0.7% | Added |
| RBF Capital, LLC | 38,582 | $333.3K | 0.01% | 00.0% | Unchanged |
| State Street Corp | 36,222 | $313.0K | 0.00% | 00.0% | Unchanged |
| Quadrature Capital Ltd | 36,193 | $312.7K | 0.00% | +36,193 | New |
| Dimensional Fund Advisors LP | 31,603 | $273.0K | 0.00% | +20,825+193.2% | Added |
| UBS Group AG | 29,817 | $257.6K | 0.00% | −8,551−22.3% | Reduced |
| Verdad Advisers, LP | 25,200 | $217.7K | 0.21% | +25,200 | New |
| XTX Topco Ltd | 24,284 | $209.8K | 0.00% | +5,158+27.0% | Added |
| Johnson & Johnson | 22,779 | $196.8K | 0.02% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 20,650 | $178.4K | 0.00% | +20,650 | New |
| Prelude Capital Management, LLC | 18,550 | $160.3K | 0.01% | +18,550 | New |
| Northern Trust Corp | 18,436 | $159.3K | 0.00% | −764−4.0% | Reduced |
| Occudo Quantitative Strategies LP | 16,636 | $143.7K | 0.01% | +1,536+10.2% | Added |
| Squarepoint Ops LLC | 15,254 | $131.8K | 0.00% | +15,254 | New |
| Vontobel Holding Ltd. | 13,776 | $119.0K | 0.00% | −471−3.3% | Reduced |
| Axq Capital, LP | 10,991 | $95.0K | 0.01% | +10,991 | New |
| Jump Financial, LLC | 10,942 | $94.5K | 0.00% | +10,942 | New |
| SRS Capital Advisors, Inc. | 6,000 | $51.8K | 0.00% | +6,000 | New |
| Vanguard Global Advisers, LLC | 5,221 | $45.1K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 4,814 | $41.6K | 0.00% | +3,421+245.6% | Added |
| Morgan Stanley | 2,291 | $19.8K | 0.00% | −1,202−34.4% | Reduced |
| Royal Bank of Canada | 1,701 | $15.0K | 0.00% | +2+0.1% | Added |
| Tower Research Capital LLC (TRC) | 277 | $2.39K | 0.00% | −1,144−80.5% | Reduced |
| Avion Wealth | 246 | $2.00K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 196 | $1.68K | 0.00% | +188+2,350.0% | Added |
| BNP Paribas Arbitrage, SA | 50 | $432 | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 47 | $406 | 0.00% | +44+1,466.7% | Added |
| SBI Securities Co., Ltd. | 24 | $207 | 0.00% | +5+26.3% | Added |
| National Bank of Canada | 17 | $146 | 0.00% | 00.0% | Unchanged |
| FMR LLC | 6 | $52 | 0.00% | +6 | New |
| TD Waterhouse Canada Inc. | 3 | $26 | 0.00% | +3 | New |
| Danske Bank A/S | 1 | $9 | 0.00% | 00.0% | Unchanged |
| Woodline Partners LP | 0 | $0 | 0.00% | −313,124−100.0% | Sold out |
| Prosight Management, LP | 0 | $0 | 0.00% | −250,244−100.0% | Sold out |
| ADAR1 Capital Management, LLC | 0 | $0 | 0.00% | −53,827−100.0% | Sold out |
| Barclays PLC | 0 | $0 | 0.00% | −25,000−100.0% | Sold out |
| GWM Advisors LLC | 0 | $0 | 0.00% | −3,854−100.0% | Sold out |
| FNY Investment Advisers, LLC | 0 | $0 | 0.00% | −3,200−100.0% | Sold out |