QUALYS INC
QLYS·74758T303·US·Common Stock·Technology - Software - Infrastructure-13D/G
QLYS (QUALYS INC) is held by 179 institutional investors as of Q2 2026. Largest holders: BlackRock, Inc. ($792.3M), VANGUARD PORTFOLIO MANAGEMENT LLC ($370.7M), VANGUARD CAPITAL MANAGEMENT LLC ($218.7M). Net institutional sentiment: Mixed. In Q2 2026, 2 members of Congress and 95 funds bought QLYS.
Who's Trading
Source dates: Price Sep 18, 2026 · Insiders Sep 15, 2026 · Activists Apr 30, 2026 · Congress Aug 5, 2026
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Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer