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 Form 13F filings. 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
Q1 2026FundsmithSell-421,729226,077$19,860,864
Q1 2026Third Avenue ManagementBuy39,12039,120$3,436,692
Q1 2026Renaissance Technologies LLCBuy17,300497,600$43,714,160
Q1 2026Alapocas Investment PartnersBuy9,21258,123$5,106,106
Q1 2026Torray FundBuy4,10618,178$1,596,937
Q1 2026Sequoia Financial AdvisorsSell-2,3242,780$244,223
Q4 2025FundsmithSell-223,053647,806$86,093,417
Q4 2025Renaissance Technologies LLCBuy24,600480,300$63,831,870
Q4 2025Torray FundBuy2,59514,072$1,870,169
Q4 2025Alapocas Investment PartnersSell-1,20548,911$6,500,272
Q4 2025Sequoia Financial AdvisorsBuy4605,104$678,322
Q3 2025FundsmithBuy152,257870,859$115,240,771
Q3 2025Renaissance Technologies LLCBuy95,300455,700$60,302,781
Q3 2025Sequoia Financial AdvisorsBuy2,3374,644$614,541
Q3 2025Alapocas Investment PartnersSell-1,04050,116$6,631,850
Q3 2025Torray FundBuy30511,477$1,518,751
Q2 2025Renaissance Technologies LLCSell-21,900360,400$51,490,348
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 2025Torray FundSell-8911,172$1,596,144
Q1 2025FundsmithBuy170,593718,602$90,493,550
Q1 2025Alapocas Investment PartnersBuy53,24553,245$6,705,143
Q1 2025Renaissance Technologies LLCBuy6,200382,300$48,143,039
Q1 2025Polen Capital ManagementSell-1,95916,742$2,108,341
Q1 2025Torray FundSell-1811,261$1,418,098
Q4 2024Renaissance Technologies LLCSell-33,700376,100$52,736,742
Q4 2024Polen Capital ManagementSell-1,80318,701$2,622,312
Q4 2024Torray FundBuy5411,279$1,581,541
Q3 2024Renaissance Technologies LLCSell-64,300409,800$52,642,908

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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