SERES THERAPEUTICS INC (MCRB) Institutional Ownership Changes & 13F Activity

SERES THERAPEUTICS INC (MCRB). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q3 2020). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Renaissance Technologies LLC and ARK Invest.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Renaissance Technologies LLCSell-1,016,500-73.0%376,808$10.67MQ3 2020Nov 13, 2020
ARK InvestSell-185,901-1.5%12,293,033$348.02MQ3 2020Oct 30, 2020
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Frequently asked questions about MCRB activity

  • Which institutional owners are buying MCRB?

    Institutional owners buying MCRB 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 MCRB activity?

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

  • Is institutional interest in MCRB increasing?

    Institutional interest in MCRB 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.

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