QUALYS INC (QLYS) Institutional Ownership Changes & 13F Activity

QUALYS INC (QLYS) institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Fundsmith, Third Avenue Management, Renaissance Technologies LLC, Alapocas Investment Partners, and Torray Fund.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2020Torray FundSell-3619,099$2,328
Q3 2020FundsmithBuy189,908813,720$79,753
Q3 2020Renaissance Technologies LLCSell-180,200331,200$32,461
Q3 2020Polen Capital ManagementBuy20,53341,478$4,065
Q3 2020Torray FundBuy16019,135$1,875
Q2 2020FundsmithBuy623,812623,812$64,889
Q2 2020Renaissance Technologies LLCBuy298,300511,400$53,196
Q2 2020Polen Capital ManagementBuy20,94520,945$2,179
Q2 2020Torray FundSell-1418,975$1,974
Q1 2020Renaissance Technologies LLCSell-196,300213,100$18,538
Q1 2020Torray FundBuy3,68018,989$1,652
Q4 2019Renaissance Technologies LLCSell-43,500409,400$34,132
Q4 2019Torray FundSell-3,78215,309$1,276
Q3 2019Renaissance Technologies LLCBuy54,000452,900$34,226
Q3 2019Torray FundBuy3419,091$1,443
Q2 2019Renaissance Technologies LLCSell-230,000398,900$34,736
Q2 2019Torray FundSell-1,54019,057$1,659
Q1 2019Renaissance Technologies LLCSell-250,100628,900$52,035
Q1 2019Torray FundBuy9620,597$1,704
Q4 2018Renaissance Technologies LLCSell-179,600879,000$65,696
Q4 2018Torray FundBuy2,01220,501$1,532
Q3 2018Renaissance Technologies LLCSell-429,6001,058,600$94,321
Q3 2018Torray FundSell-88218,489$1,647
Q2 2018Torray FundSell-63419,371$1,633
Q1 2018Renaissance Technologies LLCBuy187,5001,488,200$108,267
Q1 2018Torray FundBuy3,82420,005$1,455
Q4 2017Renaissance Technologies LLCBuy185,2001,300,700$77,197
Q4 2017Torray FundBuy3,33116,181$960
Q3 2017Renaissance Technologies LLCBuy92,5001,115,500$57,783
Q3 2017Torray FundSell-1,59412,850$666

Frequently asked questions about QLYS activity

  • Which institutional owners are buying QLYS?

    Institutional owners buying QLYS 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 QLYS activity?

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

  • Is institutional interest in QLYS increasing?

    Institutional interest in QLYS 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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