PACIFIC BIOSCIENCES OF CALIF (PACB) Institutional Ownership Changes & 13F Activity

PACIFIC BIOSCIENCES OF CALIF (PACB). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2021). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Viking Global Investors, ARK Invest, and Renaissance Technologies LLC.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Viking Global InvestorsBuy+980,324+334.2%1,273,659$44.54MQ2 2021Aug 16, 2021
Renaissance Technologies LLCBuy+37,300+4.8%820,800$28.70MQ2 2021Aug 13, 2021
ARK InvestSell-819,705-3.8%20,481,486$716.24MQ2 2021Aug 05, 2021
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Frequently asked questions about PACB activity

  • Which institutional owners are buying PACB?

    Institutional owners buying PACB 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 PACB activity?

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

  • Is institutional interest in PACB increasing?

    Institutional interest in PACB 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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