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Adicet Bio (ACET) Institutional Ownership

Adicet Bio logo
$6.50 -0.14 (-2.11%)
Closing price 10/2/2026 04:00 PM Eastern
Extended Trading
$6.60 +0.10 (+1.48%)
As of 10/2/2026 07:57 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for Adicet Bio (NASDAQ:ACET)

Current
Institutional Ownership
Percentage
83.89%
Number of
Institutional Buyers
(last 12 months)
20
Total
Institutional Inflows
(last 12 months)
$22.62M
Number of
Institutional Sellers
(last 12 months)
19
Total
Institutional Outflows
(last 12 months)
$334.39M
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ACET Institutional Buying and Selling by Quarter

Adicet Bio Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
9/9/2026Squarepoint Ops LLC15,254$132K0.0%N/A0.163%
8/21/2026AXQ Capital LP10,991$95K0.0%N/A0.117%
8/8/2026Regeneron Pharmaceuticals Inc.60,511$522.82K0.0%N/A0.647%
8/6/2026Johnson & Johnson22,779$196.81K0.0%N/A0.244%
6/3/2026NewEdge Advisors LLC3,854$26K0.0%N/A0.041%
5/18/2026ADAR1 Capital Management LLC53,827$367K0.0%-58.2%0.576%
5/15/2026Rangeley Capital LLC56,000$381K0.3%+124.0%0.599%
5/14/2026Renaissance Technologies LLC232,591$1.58M0.0%-4.3%2.423%
5/7/2026Dimensional Fund Advisors LP10,778$73K0.0%N/A0.112%
2/18/2026XTX Topco Ltd18,610$157K0.0%-68.0%0.194%
2/18/2026Tang Capital Management LLC6,158$52K0.0%-99.9%0.064%
2/18/2026Orbimed Advisors LLC1,027,944$8.66M0.2%-91.0%10.732%
2/18/2026Bridgeway Capital Management LLC56,350$474K0.0%-93.8%0.588%
2/17/2026Luminus Management LLC59,558$501K0.4%N/A0.622%
2/17/2026ADAR1 Capital Management LLC128,646$1.08M0.1%N/A1.343%
2/17/2026Burkehill Global Management LP62,500$526K0.0%N/A0.652%
2/17/2026RA Capital Management L.P.948,249$7.98M0.1%-87.4%9.898%
2/17/2026Adage Capital Partners GP L.L.C.274,375$2.31M0.0%N/A2.864%
2/17/2026Royal Bank of Canada5,449$46K0.0%-93.2%0.057%
2/17/2026RBF Capital LLC38,582$325K0.0%-93.8%0.403%
2/16/2026Squarepoint Ops LLC55,723$469K0.0%+20.0%0.582%
2/16/2026Maven Securities LTD31,250$263K0.0%N/A0.326%
2/16/2026NEXTBio Capital Management LP157,827$1.33M0.8%N/A1.647%
2/16/2026Johnson & Johnson22,779$192K0.0%-93.8%0.237%
2/16/2026Barclays PLC25,000$210K0.0%-91.7%0.261%
2/13/2026Prosight Management LP250,244$2.11M0.4%N/A2.612%
2/13/2026Carlyle Group Inc.184,295$1.54M0.0%-93.7%1.924%
2/13/2026Alyeska Investment Group L.P.203,799$1.72M0.0%-68.9%2.127%
2/13/2026State Street Corp25,896$218K0.0%-89.4%0.270%
2/12/2026Renaissance Technologies LLC242,945$2.05M0.0%-86.7%2.536%
2/11/2026Franklin Resources Inc.626,571$5.28M0.0%N/A6.540%
2/10/2026Goldman Sachs Group Inc.234,510$1.98M0.0%-93.7%2.448%
2/9/2026Geode Capital Management LLC88,856$748K0.0%-87.4%0.928%
2/6/2026Regeneron Pharmaceuticals Inc.60,511$510K1.5%-93.8%0.632%
1/16/2026FNY Investment Advisers LLC6,100$51K0.0%N/A0.064%
11/17/2025Susquehanna International Group LLP40,370$33K0.0%N/A0.026%
11/17/2025Millennium Management LLC565,953$459K0.0%-4.5%0.369%
11/17/2025Citadel Advisors LLC583,948$473K0.0%+19.8%0.381%
11/14/2025Schonfeld Strategic Advisors LLC479,108$388K0.0%-74.5%0.313%
11/14/2025Virtu Financial LLC79,916$65K0.0%N/A0.096%
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11/14/2025Two Sigma Investments LP854,568$692K0.0%+66.6%1.027%
11/14/2025Squarepoint Ops LLC46,427$38K0.0%N/A0.056%
8/13/2025Wealthedge Investment Advisors LLC313,108$191K0.1%+37.4%0.379%
8/8/2025Geode Capital Management LLC706,334$431K0.0%-8.4%0.854%
7/23/2025Vontobel Holding Ltd.80,000$49K0.0%+33.3%0.097%
6/27/2025Goldman Sachs Group Inc.3,816,556$2.88M0.0%+1.7%4.614%
5/21/2025Acadian Asset Management LLC2,039,324$1.54M0.0%+1.8%2.466%
5/16/2025Goldman Sachs Group Inc.3,816,556$2.88M0.0%+1.7%4.614%
5/14/2025Stonepine Capital Management LLC508,266$384K0.4%-27.4%0.615%
5/13/2025Wealthedge Investment Advisors LLC227,801$172K0.1%+208.8%0.275%
3/12/2025Wealthedge Investment Advisors LLC73,764$71K0.0%N/A0.090%
2/17/2025Squarepoint Ops LLC184,356$177K0.0%N/A0.224%
2/17/2025Two Sigma Advisers LP794,039$764K0.0%+12.4%0.964%
2/17/2025Stonepine Capital Management LLC700,000$673K0.5%+14.9%0.850%
2/17/2025Tang Capital Management LLC8,145,988$7.84M0.5%-0.9%9.886%
2/17/2025Millennium Management LLC1,814,314$1.75M0.0%-7.4%2.202%
2/17/2025D. E. Shaw & Co. Inc.847,064$815K0.0%-7.6%1.028%
2/17/2025Bridgeway Capital Management LLC1,026,600$988K0.0%+20.5%1.246%
2/17/2025Bank of America Corp DE37,363$36K0.0%-46.8%0.045%
2/14/2025Northern Trust Corp140,369$135K0.0%+25.1%0.170%
2/13/2025Marshall Wace LLP40,306$39K0.0%-72.2%0.049%
2/13/2025XTX Topco Ltd68,197$66K0.0%-76.7%0.083%
2/13/2025Renaissance Technologies LLC916,500$882K0.0%-25.6%1.112%
2/12/2025Diametric Capital LP85,517$82K0.1%-22.1%0.104%
2/12/2025Norges Bank429,550$413K0.0%N/A0.521%
2/12/2025JPMorgan Chase & Co.150,485$145K0.0%+87.3%0.183%
2/11/2025Virtu Financial LLC30,611$29K0.0%N/A0.037%
2/7/2025Regeneron Pharmaceuticals Inc.968,183$931K0.1%N/A1.175%
12/26/2024JPMorgan Chase & Co.80,353$116K0.0%+10,321.9%0.098%
11/16/2024Geode Capital Management LLC768,566$1.11M0.0%+14.5%0.933%
11/15/2024XTX Topco Ltd292,180$421K0.0%+12.5%0.355%
11/15/2024Jane Street Group LLC74,767$108K0.0%-63.9%0.091%
11/15/2024State Street Corp229,721$331K0.0%-6.2%0.279%
11/15/2024RBF Capital LLC601,135$866K0.0%+62.5%0.730%
11/15/2024Point72 Asia Singapore Pte. Ltd.41,115$59K0.0%-19.2%0.050%
11/13/2024FMR LLC276,169$398K0.0%+31.3%0.335%
11/8/2024Connor Clark & Lunn Investment Management Ltd.180,793$260K0.0%-15.1%0.219%
11/6/2024Cornercap Investment Counsel Inc.18,074$26K0.0%-53.3%0.022%
11/5/2024GSA Capital Partners LLP39,208$56K0.0%+161.3%0.048%
10/21/2024Castleview Partners LLC52,368$75K0.0%N/A0.064%
9/16/2024Point72 DIFC Ltd33,441$40K0.0%+77.5%0.041%
9/16/2024Cubist Systematic Strategies LLC409,049$495K0.0%+790.1%0.496%
9/16/2024Point72 Asia Singapore Pte. Ltd.50,888$62K0.0%N/A0.062%
8/21/2024Stonepine Capital Management LLC609,446$737K0.7%+330.6%0.740%
8/15/2024Millennium Management LLC3,621,670$4.38M0.0%-11.8%4.408%
8/15/2024AQR Capital Management LLC136,765$165K0.0%+478.3%0.166%
8/15/2024Point72 Asia Singapore Pte. Ltd.50,888$62K0.0%N/A0.062%
8/14/2024Squarepoint Ops LLC362,230$438K0.0%+2,728.8%0.441%
8/14/2024Cubist Systematic Strategies LLC409,049$495K0.0%+790.1%0.498%
8/14/2024Point72 DIFC Ltd33,441$40K0.0%+77.5%0.041%
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8/14/2024Marshall Wace LLP35,323$43K0.0%N/A0.043%
8/12/2024XTX Topco Ltd259,788$314K0.0%+14.9%0.316%
8/9/2024Renaissance Technologies LLC1,512,600$1.83M0.0%+44.2%1.841%
8/9/2024Dimensional Fund Advisors LP147,814$179K0.0%-21.9%0.180%
8/8/2024American Century Companies Inc.76,087$92K0.0%+22.9%0.093%
8/7/2024Cowen AND Company LLC801,298$970K0.0%-6.8%0.975%
8/6/2024Acadian Asset Management LLC1,085,093$1.31M0.0%+205.4%1.321%
8/1/2024Rhumbline Advisers20,819$25K0.0%-65.6%0.025%
5/17/2024RA Capital Management L.P.7,541,000$17.72M0.2%N/A9.177%
5/16/2024Bayesian Capital Management LP38,421$90K0.0%N/A0.047%


ACET Institutional Ownership - Frequently Asked Questions

During the previous two years, 55 institutional investors and hedge funds held shares of Adicet Bio. The most heavily invested institutionals were Orbimed Advisors LLC ($8.66M), RA Capital Management L.P. ($7.98M), Franklin Resources Inc. ($5.28M), Adage Capital Partners GP L.L.C. ($2.31M), Prosight Management LP ($2.11M), Goldman Sachs Group Inc. ($1.98M), and Alyeska Investment Group L.P. ($1.72M).Learn more on Adicet Bio's institutional investors.

83.89% of Adicet Bio's stock is owned by institutional investors. Learn more on ACET's institutional investor holdings.

Of the 36 institutional investors that purchased Adicet Bio's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Regeneron Pharmaceuticals Inc. ($1.03M), Franklin Resources Inc. ($626.57K), Norges Bank ($429.55K), Two Sigma Investments LP ($341.76K), Wealthedge Investment Advisors LLC ($313.11K), Adage Capital Partners GP L.L.C. ($274.38K), and Squarepoint Ops LLC ($255.33K).

Institutional investors have bought a total of 2,366,349 shares in the last 24 months. This purchase volume represents approximately $22.62M in transactions.

Of the 19 institutional investors that sold Adicet Bio's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Orbimed Advisors LLC ($10.42M), Tang Capital Management LLC ($8.22M), RA Capital Management L.P. ($6.59M), Goldman Sachs Group Inc. ($3.52M), Carlyle Group Inc. ($2.76M), Renaissance Technologies LLC ($1.60M), and Schonfeld Strategic Advisors LLC ($1.40M).

Institutional investors have sold a total of 38,959,645 shares in the last 24 months. This volume of shares sold represents approximately $334.39M in transactions.


Related Companies

Institutional ownership data for NASDAQ:ACET is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 9/9/2026. New 13F filings are added each quarter as they're published.
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