QUALYS INC (QLYS) Stock Institutional Trading Activity


QUALYS INC (QLYS) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Fundsmith, Renaissance Technologies LLC, Sequoia Financial Advisors, Alapocas Investment Partners, and Torray Fund. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2022Renaissance Technologies LLCBuy31,00044,600$6,351
Q1 2022Polen Capital ManagementBuy15,195114,864$16,358
Q1 2022FundsmithSell-133,995938,828$133,698
Q4 2021Torray FundSell-4,47911,154$1,531
Q4 2021FundsmithBuy2,3101,072,823$147,213
Q4 2021ARK InvestBuy1,4131,413$194
Q4 2021Renaissance Technologies LLCSell-66,10013,600$1,866
Q4 2021Polen Capital ManagementBuy22,18699,669$13,677
Q3 2021Torray FundSell-1,94815,633$1,740
Q3 2021FundsmithBuy3,8391,070,513$119,137
Q3 2021Polen Capital ManagementBuy6,55377,483$8,623
Q3 2021Renaissance Technologies LLCSell-22,20079,700$8,870
Q2 2021Torray FundBuy2,31017,581$1,770
Q2 2021FundsmithBuy5,6081,066,674$107,403
Q2 2021Polen Capital ManagementBuy4,26570,930$7,142
Q1 2021Torray FundSell-3,82815,271$1,600
Q1 2021FundsmithBuy127,2791,061,066$111,178
Q1 2021Polen Capital ManagementBuy13,05866,665$6,985
Q4 2020Torray FundSell-3619,099$2,328
Q4 2020FundsmithBuy120,067933,787$113,801
Q4 2020Polen Capital ManagementBuy12,12953,607$6,533
Q4 2020Renaissance Technologies LLCSell-229,300101,900$12,419
Q3 2020Torray FundBuy16019,135$1,875
Q3 2020FundsmithBuy189,908813,720$79,753
Q3 2020Polen Capital ManagementBuy20,53341,478$4,065
Q3 2020Renaissance Technologies LLCSell-180,200331,200$32,461
Q2 2020Torray FundSell-1418,975$1,974
Q2 2020FundsmithBuy623,812623,812$64,889
Q2 2020Polen Capital ManagementBuy20,94520,945$2,179
Q2 2020Renaissance Technologies LLCBuy298,300511,400$53,196

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.