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, Q4 2025
Institutional positions in Adicet Bio, Inc. as of Dec 31, 2025. 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
- 49
- −5 vs. Q3 2025
- Shares held
- 6.72M
- −44.7M (−86.9%) vs. Q3 2025
- Total value
- $56.6M
- +$14.9M (+35.9%) vs. Q3 2025
- New holders
- 15
- 1 more added
- Sold out
- 20
- 33 more reduced
Compare with Q3 2025: 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 | $56.6M |
| Q3 2025 | 54 | $41.6M |
| Q2 2025 | 49 | $31.5M |
| Q1 2025 | 56 | $42.0M |
| Q4 2024 | 64 | $55.4M |
| Q3 2024 | 64 | $82.3M |
| Q2 2024 | 86 | $77.4M |
| Q1 2024 | 98 | $176.6M |
| Q4 2023 | 77 | $63.0M |
| 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 | $531.2M |
| Q3 2021 | 58 | $156.1M |
| Q2 2021 | 66 | $218.1M |
| Q1 2021 | 54 | $266.3M |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Adicet Bio, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| OrbiMed Advisors LLC | 1,027,944 | $8.66M | 0.18% | −10,419,196−91.0% | Reduced |
| Ra Capital Management, L.P. | 948,249 | $7.98M | 0.08% | −6,592,751−87.4% | Reduced |
| Franklin Resources Inc | 626,571 | $5.28M | 0.00% | +626,571 | New |
| Woodline Partners LP | 625,000 | $5.26M | 0.02% | +625,000 | New |
| Vanguard Group Inc | 291,277 | $2.45M | 0.00% | −2,981,245−91.1% | Reduced |
| Adage Capital Partners GP, L.L.C. | 274,375 | $2.31M | 0.00% | +274,375 | New |
| Prosight Management, LP | 250,244 | $2.11M | 0.44% | +250,244 | New |
| Renaissance Technologies LLC | 242,945 | $2.05M | 0.00% | −1,586,004−86.7% | Reduced |
| Goldman Sachs Group Inc | 234,510 | $1.97M | 0.00% | −3,517,107−93.7% | Reduced |
| Stonepine Capital Management, LLC | 220,011 | $1.85M | 1.47% | +220,011 | New |
| Alyeska Investment Group, L.P. | 203,799 | $1.72M | 0.00% | −451,866−68.9% | Reduced |
| Carlyle Group Inc. | 184,295 | $1.54M | 0.01% | −2,764,423−93.7% | Reduced |
| Acadian Asset Management LLC | 181,395 | $1.52M | 0.00% | −2,084,096−92.0% | Reduced |
| NEXTBio Capital Management LP | 157,827 | $1.33M | 0.78% | +157,827 | New |
| Two Sigma Investments, LP | 144,796 | $1.22M | 0.00% | −709,772−83.1% | Reduced |
| ADAR1 Capital Management, LLC | 128,646 | $1.08M | 0.08% | +128,646 | New |
| Two Sigma Advisers, LP | 111,336 | $937.4K | 0.00% | −669,646−85.7% | Reduced |
| Citadel Advisors LLC | 107,814 | $907.8K | 0.00% | −476,134−81.5% | Reduced |
| DAFNA Capital Management LLC | 93,812 | $789.9K | 0.18% | +93,812 | New |
| Geode Capital Management, LLC | 88,856 | $748.3K | 0.00% | −617,478−87.4% | Reduced |
| Burkehill Global Management, LP | 62,500 | $526.3K | 0.03% | +62,500 | New |
| Regeneron Pharmaceuticals, Inc. | 60,511 | $509.5K | 1.51% | −907,672−93.8% | Reduced |
| Luminus Management LLC | 59,558 | $501.5K | 0.46% | +59,558 | New |
| Bridgeway Capital Management, LLC | 56,350 | $474.5K | 0.01% | −845,250−93.8% | Reduced |
| Squarepoint Ops LLC | 55,723 | $469.2K | 0.00% | +9,296+20.0% | Added |
| RBF Capital, LLC | 38,582 | $324.9K | 0.01% | −578,737−93.8% | Reduced |
| BlackRock, Inc. | 36,585 | $308.0K | 0.00% | −548,792−93.8% | Reduced |
| Maven Securities LTD | 31,250 | $263.1K | 0.03% | +31,250 | New |
| State Street Corp | 25,896 | $218.0K | 0.00% | −218,290−89.4% | Reduced |
| Rangeley Capital, LLC | 25,001 | $210.5K | 0.18% | −49,999−66.7% | Reduced |
| Barclays PLC | 25,000 | $210.5K | 0.00% | −275,000−91.7% | Reduced |
| Johnson & Johnson | 22,779 | $191.8K | 0.03% | −341,693−93.8% | Reduced |
| XTX Topco Ltd | 18,610 | $156.7K | 0.00% | −39,529−68.0% | Reduced |
| Gsa Capital Partners LLP | 17,763 | $150.0K | 0.01% | +17,763 | New |
| Northern Trust Corp | 14,067 | $118.4K | 0.00% | −126,306−90.0% | Reduced |
| Tang Capital Management LLC | 6,158 | $51.9K | 0.00% | −8,217,454−99.9% | Reduced |
| FNY Investment Advisers, LLC | 6,100 | $51.0K | 0.01% | +6,100 | New |
| Royal Bank of Canada | 5,449 | $46.0K | 0.00% | −74,661−93.2% | Reduced |
| UBS Group AG | 3,797 | $32.0K | 0.00% | −17,641−82.3% | Reduced |
| Morgan Stanley | 3,040 | $25.6K | 0.00% | −70,642−95.9% | Reduced |
| Bank of America Corp | 1,288 | $10.8K | 0.00% | −19,319−93.7% | Reduced |
| Tower Research Capital LLC (TRC) | 1,072 | $9.03K | 0.00% | −3,920−78.5% | Reduced |
| Hollencrest Capital Management | 250 | $2.10K | 0.00% | −1,750−87.5% | Reduced |
| Simplex Trading, LLC | 87 | $732 | 0.00% | +87 | New |
| BNP Paribas Arbitrage, SA | 50 | $421 | 0.00% | −846−94.4% | Reduced |
| FMR LLC | 34 | $286 | 0.00% | −742−95.6% | Reduced |
| SBI Securities Co., Ltd. | 19 | $160 | 0.00% | −808−97.7% | Reduced |
| JPMorgan Chase & Co | 12 | $101 | 0.00% | −759−98.4% | Reduced |
| Danske Bank A/S | 1 | $8 | 0.00% | +1 | New |
| Millennium Management LLC | 0 | $0 | 0.00% | −565,953−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −479,108−100.0% | Sold out |
| Wealthedge Investment Advisors, LLC | 0 | $0 | 0.00% | −300,054−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −186,200−100.0% | Sold out |
| Vontobel Holding Ltd. | 0 | $0 | 0.00% | −80,000−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −79,916−100.0% | Sold out |
| Bluefin Capital Management, LLC | 0 | $0 | 0.00% | −66,854−100.0% | Sold out |
| Dimensional Fund Advisors LP | 0 | $0 | 0.00% | −52,963−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −51,733−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −40,370−100.0% | Sold out |
| Abacus Planning Group, Inc. | 0 | $0 | 0.00% | −36,764−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −25,274−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −20,257−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −18,627−100.0% | Sold out |
| Mariner, LLC | 0 | $0 | 0.00% | −14,850−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −13,265−100.0% | Sold out |
| Toth Financial Advisory Corp | 0 | $0 | 0.00% | −1,600−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −316−100.0% | Sold out |
| Citigroup Inc | 0 | $0 | 0.00% | −166−100.0% | Sold out |
| Advisor Group Holdings, Inc. | 0 | $0 | 0.00% | −10−100.0% | Sold out |