QLYS: Qualys Inc insider trading, 5% holders and institutional ownership

From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.

Insider trading

0 open-market buys totaling - and 11 sales totaling $776K in the last 180 days.

Insider sales

Trade dateInsiderRoleValue10b5-1 plan
2026-10-20Posey Bruce KOfficer$15Kyes
2026-10-20Posey Bruce KOfficer$1Kyes
2026-10-20Posey Bruce KOfficer$7Kyes
2026-10-20Posey Bruce KOfficer$46Kyes
2026-10-20Posey Bruce KOfficer$86Kyes
2026-10-20Posey Bruce KOfficer$12Kyes
2026-10-14Thakar Sumedh SCEO$75Kyes
2026-10-14Thakar Sumedh SCEO$284Kyes
2026-10-14Thakar Sumedh SCEO$76Kyes
2026-10-14Thakar Sumedh SCEO$96Kyes
2026-10-14Thakar Sumedh SCEO$78Kyes

Institutional ownership (Q2 2026)

436 institutions reported holding $4.79B of Qualys Inc on Form 13F (423 the quarter before). 86 opened a new position and 72 sold out. Shares held by institutions: same.

Largest holdersSharesValue
BlackRock, Inc.5,762,721$792.32M
VANGUARD PORTFOLIO MANAGEMENT LLC2,695,941$370.66M
VANGUARD CAPITAL MANAGEMENT LLC1,590,332$218.65M
STATE STREET CORP1,456,158$200.21M
Legal & General Group Plc1,437,373$197.62M
GEODE CAPITAL MANAGEMENT, LLC1,409,583$193.83M
AQR CAPITAL MANAGEMENT LLC1,394,771$190.60M
FIRST TRUST ADVISORS LP1,130,656$155.45M
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP985,345$135.48M
Boston Trust Walden Corp984,889$135.41M

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