ADICET BIO INC (ACET) Institutional Ownership Changes & 13F Activity

ADICET BIO INC (ACET). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q4 2025). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Orbimed Advisors Llc, Ra Capital Management, L.P., Woodline Partners Lp, Adage Capital Partners Gp, L.L.C., and Prosight Management, Lp.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Bluefin Capital Management, LlcSell-66,854-100.0%0$0.00Q4 2025Apr 29, 2026
Orbimed Advisors LlcBuy+1,027,944—1,027,944$8.66MQ4 2025Feb 17, 2026
Ra Capital Management, L.P.Buy+948,249—948,249$7.98MQ4 2025Feb 17, 2026
Woodline Partners LpBuy+625,000—625,000$5.26MQ4 2025Feb 17, 2026
Adage Capital Partners Gp, L.L.C.Buy+274,375—274,375$2.31MQ4 2025Feb 17, 2026
Two Sigma Investments, LpBuy+144,796—144,796$1.22MQ4 2025Feb 17, 2026
Adar1 Capital Management, LlcBuy+128,646—128,646$1.08MQ4 2025Feb 17, 2026
Two Sigma Advisers, LpBuy+111,336—111,336$937.45KQ4 2025Feb 17, 2026
Citadel Advisors LlcBuy+107,814—107,814$907.79KQ4 2025Feb 17, 2026
Dafna Capital Management LlcBuy+93,812—93,812$789.90KQ4 2025Feb 17, 2026
Burkehill Global Management, LpBuy+62,500—62,500$526.25KQ4 2025Feb 17, 2026
Luminus Management LlcBuy+59,558—59,558$501.48KQ4 2025Feb 17, 2026
Bridgeway Capital Management, LlcBuy+56,350—56,350$474.47KQ4 2025Feb 17, 2026
Rbf Capital, LlcBuy+38,582—38,582$324.86KQ4 2025Feb 17, 2026
Rangeley Capital, LlcBuy+25,001—25,001$210.51KQ4 2025Feb 17, 2026
Xtx Topco LtdBuy+18,610—18,610$156.70KQ4 2025Feb 17, 2026
Northern Trust CorpBuy+14,067—14,067$118.44KQ4 2025Feb 17, 2026
Tang Capital Management LlcBuy+6,158—6,158$51.85KQ4 2025Feb 17, 2026
Royal Bank Of CanadaBuy+5,449—5,449$46.00KQ4 2025Feb 17, 2026
Bank Of America CorpBuy+1,288—1,288$10.85KQ4 2025Feb 17, 2026
Tower Research Capital Llc (Trc)Buy+1,072—1,072$9.03KQ4 2025Feb 17, 2026
Fmr LlcBuy+34—34$286.00Q4 2025Feb 17, 2026
Prosight Management, LpBuy+250,244—250,244$2.11MQ4 2025Feb 13, 2026
Stonepine Capital Management, LlcBuy+220,011—220,011$1.85MQ4 2025Feb 13, 2026
Alyeska Investment Group, L.P.Buy+203,799—203,799$1.72MQ4 2025Feb 13, 2026
Carlyle Group Inc.Buy+184,295—184,295$1.54MQ4 2025Feb 13, 2026
Nextbio Capital Management LpBuy+157,827—157,827$1.33MQ4 2025Feb 13, 2026
Squarepoint Ops LlcBuy+55,723—55,723$469.19KQ4 2025Feb 13, 2026
Maven Securities LtdBuy+31,250—31,250$263.13KQ4 2025Feb 13, 2026
State Street CorpBuy+25,896—25,896$218.04KQ4 2025Feb 13, 2026
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Frequently asked questions about ACET activity

  • Which institutional owners are buying ACET?

    Institutional owners buying ACET include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in ACET activity?

    "Buy" means an investor increased their reported position in ACET compared to the prior reporting period. This reflects growing exposure to ADICET BIO INC (ACET) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in ACET increasing?

    Institutional interest in ACET can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.