QUALYS INC (QLYS) Institutional Ownership and Insiders Activity

QUALYS INC (QLYS) is widely held by institutional investors, with 424 firms reporting positions valued at approximately $5.05B based on SEC Form 13F filings for the quarter ended June 30, 2026.

Blackrock, Inc. is the largest disclosed holder, reporting approximately $792.32M in QLYS holdings in its latest filing.

Recent insider activity includes 40 tracked Form 4 transactions over the last three months, reflecting ongoing executive and director trading activity.