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
Q4 2025Renaissance Technologies LLCBuy24,600480,300$63,831,870
Q4 2025FundsmithSell-223,053647,806$86,093,417
Q3 2025Torray FundBuy30511,477$1,518,751
Q3 2025Sequoia Financial AdvisorsBuy2,3374,644$614,541
Q3 2025Alapocas Investment PartnersSell-1,04050,116$6,631,850
Q3 2025Renaissance Technologies LLCBuy95,300455,700$60,302,781
Q3 2025FundsmithBuy152,257870,859$115,240,771
Q2 2025Torray FundSell-8911,172$1,596,144
Q2 2025Polen Capital ManagementSell-15,2901,452$207,447
Q2 2025Sequoia Financial AdvisorsBuy2,3072,307$329,602
Q2 2025Alapocas Investment PartnersSell-2,08951,156$7,308,658
Q2 2025Renaissance Technologies LLCSell-21,900360,400$51,490,348
Q1 2025Torray FundSell-1811,261$1,418,098
Q1 2025Polen Capital ManagementSell-1,95916,742$2,108,341
Q1 2025Alapocas Investment PartnersBuy53,24553,245$6,705,143
Q1 2025Renaissance Technologies LLCBuy6,200382,300$48,143,039
Q1 2025FundsmithBuy170,593718,602$90,493,550
Q4 2024Torray FundBuy5411,279$1,581,541
Q4 2024Polen Capital ManagementSell-1,80318,701$2,622,312
Q4 2024Renaissance Technologies LLCSell-33,700376,100$52,736,742
Q3 2024Torray FundSell-13911,225$1,441,964
Q3 2024Polen Capital ManagementSell-5,06420,504$2,633,965
Q3 2024Renaissance Technologies LLCSell-64,300409,800$52,642,908
Q2 2024Torray FundSell-2,08711,364$1,620,506
Q2 2024Polen Capital ManagementSell-5,06725,568$3,645,964
Q2 2024Renaissance Technologies LLCBuy63,000474,100$67,606,660
Q2 2024FundsmithSell-17,237548,009$78,146,083
Q1 2024Torray FundBuy4,71313,451$1,483,808
Q1 2024Renaissance Technologies LLCBuy253,500411,100$68,600
Q1 2024Polen Capital ManagementSell-1,02530,635$5,112,003

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.