ASSEMBLY BIOSCIENCES INC (ASMB) Institutional Ownership Changes & 13F Activity

ASSEMBLY BIOSCIENCES INC (ASMB). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Paradigm Biocapital Advisors Lp, Commodore Capital Lp, Seven Fleet Capital Management Lp, Farallon Capital Management Llc, and Parkman Healthcare Partners Llc.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Citadel Advisors LlcBuy+166,377+654.1%191,814$5.27MQ2 2026Sep 02, 2026
California State Teachers Retirement SystemBuy+3,8733,873$3.87KQ2 2026Aug 24, 2026
Seven Fleet Capital Management LpBuy+377,000+671.5%433,147$11.90MQ2 2026Aug 17, 2026
Paradigm Biocapital Advisors LpBuy+888,497+133.6%1,553,748$42.70MQ2 2026Aug 14, 2026
Commodore Capital LpBuy+415,000+41.5%1,415,000$38.88MQ2 2026Aug 14, 2026
Farallon Capital Management LlcBuy+377,000+30.7%1,604,590$44.09MQ2 2026Aug 14, 2026
Parkman Healthcare Partners LlcBuy+309,954+75.4%721,181$19.82MQ2 2026Aug 14, 2026
Ameriprise Financial IncBuy+230,000230,000$6.32MQ2 2026Aug 14, 2026
Squadron Capital Management LlcBuy+160,000160,000$4.40MQ2 2026Aug 14, 2026
Woodline Partners LpBuy+150,780150,780$4.14MQ2 2026Aug 14, 2026
Driehaus Capital Management LlcBuy+150,000150,000$4.12MQ2 2026Aug 14, 2026
Ally Bridge Group (Ny) LlcBuy+140,000140,000$3.85MQ2 2026Aug 14, 2026
Schonfeld Strategic Advisors LlcBuy+121,653+101.0%242,153$6.65MQ2 2026Aug 14, 2026
Point72 Asset Management, L.P.Buy+116,488+33.9%460,593$12.66MQ2 2026Aug 14, 2026
Goldman Sachs Group IncBuy+101,628+280.7%137,833$3.79MQ2 2026Aug 14, 2026
Millennium Management LlcBuy+65,157+27.9%298,807$8.21MQ2 2026Aug 14, 2026
Caption Management, LlcSell-59,012-72.1%22,829$627.34KQ2 2026Aug 14, 2026
Xtx Topco LtdBuy+32,133+297.9%42,918$1.18MQ2 2026Aug 14, 2026
Charles Schwab Investment Management IncBuy+29,12829,128$800.44KQ2 2026Aug 14, 2026
Sixth Street Partners Management Company, L.P.Buy+29,12829,128$800.44KQ2 2026Aug 14, 2026
Eversept Partners, LpSell-24,379-59.6%16,510$453.69KQ2 2026Aug 14, 2026
Trexquant Investment LpBuy+22,920+100.8%45,661$1.25MQ2 2026Aug 14, 2026
Barclays PlcSell-20,917-77.3%6,133$168.54KQ2 2026Aug 14, 2026
Qube Research & Technologies LtdSell-17,768-25.7%51,488$1.41MQ2 2026Aug 14, 2026
Hsbc Holdings PlcBuy+16,93516,935$17.10KQ2 2026Aug 14, 2026
Stempoint Capital LpSell-15,057-8.1%170,378$4.68MQ2 2026Aug 14, 2026
Invesco Ltd.Buy+11,86411,864$326.02KQ2 2026Aug 14, 2026
Squarepoint Ops LlcBuy+10,410+43.7%34,214$940.20KQ2 2026Aug 14, 2026
Integrated Quantitative Investments LlcBuy+10,07810,078$276.94KQ2 2026Aug 14, 2026
Engineers Gate Manager LpBuy+8,343+88.5%17,766$488.21KQ2 2026Aug 14, 2026
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Frequently asked questions about ASMB activity

  • Which institutional owners are buying ASMB?

    Institutional owners buying ASMB 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 ASMB activity?

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

  • Is institutional interest in ASMB increasing?

    Institutional interest in ASMB 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.