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 |
|---|---|---|---|---|---|
| Danske Bank A/S | 1 | $8 | 0.00% | +1 | New |
| JPMorgan Chase & Co | 12 | $101 | 0.00% | −759−98.4% | Reduced |
| SBI Securities Co., Ltd. | 19 | $160 | 0.00% | −808−97.7% | Reduced |
| FMR LLC | 34 | $286 | 0.00% | −742−95.6% | Reduced |
| BNP Paribas Arbitrage, SA | 50 | $421 | 0.00% | −846−94.4% | Reduced |
| Simplex Trading, LLC | 87 | $732 | 0.00% | +87 | New |
| Hollencrest Capital Management | 250 | $2.10K | 0.00% | −1,750−87.5% | Reduced |
| Tower Research Capital LLC (TRC) | 1,072 | $9.03K | 0.00% | −3,920−78.5% | Reduced |
| Bank of America Corp | 1,288 | $10.8K | 0.00% | −19,319−93.7% | Reduced |
| Morgan Stanley | 3,040 | $25.6K | 0.00% | −70,642−95.9% | Reduced |
| UBS Group AG | 3,797 | $32.0K | 0.00% | −17,641−82.3% | Reduced |
| Royal Bank of Canada | 5,449 | $46.0K | 0.00% | −74,661−93.2% | Reduced |
| FNY Investment Advisers, LLC | 6,100 | $51.0K | 0.01% | +6,100 | New |
| Tang Capital Management LLC | 6,158 | $51.9K | 0.00% | −8,217,454−99.9% | Reduced |
| Northern Trust Corp | 14,067 | $118.4K | 0.00% | −126,306−90.0% | Reduced |
| Gsa Capital Partners LLP | 17,763 | $150.0K | 0.01% | +17,763 | New |
| XTX Topco Ltd | 18,610 | $156.7K | 0.00% | −39,529−68.0% | Reduced |
| Johnson & Johnson | 22,779 | $191.8K | 0.03% | −341,693−93.8% | Reduced |
| Barclays PLC | 25,000 | $210.5K | 0.00% | −275,000−91.7% | Reduced |
| Rangeley Capital, LLC | 25,001 | $210.5K | 0.18% | −49,999−66.7% | Reduced |
| State Street Corp | 25,896 | $218.0K | 0.00% | −218,290−89.4% | Reduced |
| Maven Securities LTD | 31,250 | $263.1K | 0.03% | +31,250 | New |
| BlackRock, Inc. | 36,585 | $308.0K | 0.00% | −548,792−93.8% | Reduced |
| RBF Capital, LLC | 38,582 | $324.9K | 0.01% | −578,737−93.8% | Reduced |
| Squarepoint Ops LLC | 55,723 | $469.2K | 0.00% | +9,296+20.0% | Added |
| Bridgeway Capital Management, LLC | 56,350 | $474.5K | 0.01% | −845,250−93.8% | Reduced |
| Luminus Management LLC | 59,558 | $501.5K | 0.46% | +59,558 | New |
| Regeneron Pharmaceuticals, Inc. | 60,511 | $509.5K | 1.51% | −907,672−93.8% | Reduced |
| Burkehill Global Management, LP | 62,500 | $526.3K | 0.03% | +62,500 | New |
| Geode Capital Management, LLC | 88,856 | $748.3K | 0.00% | −617,478−87.4% | Reduced |
| DAFNA Capital Management LLC | 93,812 | $789.9K | 0.18% | +93,812 | New |
| Citadel Advisors LLC | 107,814 | $907.8K | 0.00% | −476,134−81.5% | Reduced |
| Two Sigma Advisers, LP | 111,336 | $937.4K | 0.00% | −669,646−85.7% | Reduced |
| ADAR1 Capital Management, LLC | 128,646 | $1.08M | 0.08% | +128,646 | New |
| Two Sigma Investments, LP | 144,796 | $1.22M | 0.00% | −709,772−83.1% | Reduced |
| NEXTBio Capital Management LP | 157,827 | $1.33M | 0.78% | +157,827 | New |
| Acadian Asset Management LLC | 181,395 | $1.52M | 0.00% | −2,084,096−92.0% | Reduced |
| Carlyle Group Inc. | 184,295 | $1.54M | 0.01% | −2,764,423−93.7% | Reduced |
| Alyeska Investment Group, L.P. | 203,799 | $1.72M | 0.00% | −451,866−68.9% | Reduced |
| Stonepine Capital Management, LLC | 220,011 | $1.85M | 1.47% | +220,011 | New |
| Goldman Sachs Group Inc | 234,510 | $1.97M | 0.00% | −3,517,107−93.7% | Reduced |
| Renaissance Technologies LLC | 242,945 | $2.05M | 0.00% | −1,586,004−86.7% | Reduced |
| Prosight Management, LP | 250,244 | $2.11M | 0.44% | +250,244 | New |
| Adage Capital Partners GP, L.L.C. | 274,375 | $2.31M | 0.00% | +274,375 | New |
| Vanguard Group Inc | 291,277 | $2.45M | 0.00% | −2,981,245−91.1% | Reduced |
| Woodline Partners LP | 625,000 | $5.26M | 0.02% | +625,000 | New |
| Franklin Resources Inc | 626,571 | $5.28M | 0.00% | +626,571 | New |
| Ra Capital Management, L.P. | 948,249 | $7.98M | 0.08% | −6,592,751−87.4% | Reduced |
| OrbiMed Advisors LLC | 1,027,944 | $8.66M | 0.18% | −10,419,196−91.0% | Reduced |
| 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 |