I-MAB-SPONSORED ADR (IMAB) Institutional Ownership Changes & 13F Activity

I-MAB-SPONSORED ADR (IMAB). 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 Marshall Wace, Llp, Siren, L.L.C., Two Sigma Investments, Lp, Aihc Capital Management Ltd, and E Fund Management Co., Ltd..

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Citadel Advisors LlcBuy+456,215+273.8%622,831$1.21MQ2 2026Sep 02, 2026
Two Sigma Investments, LpBuy+851,348851,348$1.66MQ2 2026Aug 14, 2026
Woodline Partners LpSell-350,000-50.0%350,000$682.50KQ2 2026Aug 14, 2026
Invesco Ltd.Buy+62,88562,885$122.63KQ2 2026Aug 14, 2026
Goldman Sachs Group IncBuy+48,858+43.4%161,321$314.58KQ2 2026Aug 14, 2026
Barclays PlcSell-20,280-6.8%279,019$544.09KQ2 2026Aug 14, 2026
Jane Street Group, LlcBuy+18,34318,343$35.77KQ2 2026Aug 14, 2026
Susquehanna International Group, LlpBuy+15,722+122.7%28,539$55.65KQ2 2026Aug 14, 2026
Two Sigma Securities, LlcBuy+15,64115,641$30.50KQ2 2026Aug 14, 2026
Aigen Investment Management, LpBuy+11,42611,426$22.28KQ2 2026Aug 14, 2026
Squarepoint Ops LlcBuy+2,661+11.2%26,468$51.61KQ2 2026Aug 14, 2026
Group One Trading LlcBuy+143143$279.00Q2 2026Aug 14, 2026
Osaic Holdings, Inc.Buy+3030$58.00Q2 2026Aug 14, 2026
Marshall Wace, LlpBuy+1,231,9461,231,946$2.40MQ2 2026Aug 13, 2026
Siren, L.L.C.Sell-995,261-33.2%2,004,739$3.91MQ2 2026Aug 13, 2026
Aihc Capital Management LtdBuy+615,100+27.2%2,878,033$5.61MQ2 2026Aug 13, 2026
Renaissance Technologies LLCBuy+485,814+178.3%758,226$1.48MQ2 2026Aug 13, 2026
Ubs Group AgBuy+238,239+374.9%301,780$588.47KQ2 2026Aug 13, 2026
Morgan StanleySell-184,970-4.8%3,653,228$7.12MQ2 2026Aug 13, 2026
Headlands Technologies LlcBuy+65,18365,183$127.11KQ2 2026Aug 13, 2026
Bnp Paribas Financial MarketsSell-44,266-60.6%28,836$56.23KQ2 2026Aug 13, 2026
Jpmorgan Chase & CoBuy+81,55681,556$161.48KQ2 2026Aug 12, 2026
Simplex Trading, LlcBuy+1,9671,967$3.83KQ2 2026Aug 12, 2026
E Fund Management Co., Ltd.Buy+589,020589,020$1.15MQ2 2026Aug 11, 2026
Dimensional Fund Advisors LpSell-29,981-20.5%116,341$226.86KQ2 2026Aug 11, 2026
Tower Research Capital Llc (Trc)Buy+1,085+33.5%4,326$8.44KQ2 2026Aug 11, 2026
Blackrock, Inc.Buy+58,712+9.4%686,208$1.34MQ2 2026Aug 07, 2026
Sg Americas Securities, LlcBuy+38,19838,198$74.00KQ2 2026Aug 07, 2026
State Street CorpSell-9,731-2.6%360,376$702.73KQ2 2026Aug 07, 2026
Gf Fund Management Co. Ltd.Buy+56+2.4%2,377$4.63KQ2 2026Aug 07, 2026
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Frequently asked questions about IMAB activity

  • Which institutional owners are buying IMAB?

    Institutional owners buying IMAB 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 IMAB activity?

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

  • Is institutional interest in IMAB increasing?

    Institutional interest in IMAB 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.