Qualys, Inc. (QLYS) Institutional Ownership

Ownership Summary

According to SEC filings for the period ending September 2025, Qualys, Inc. (NASDAQ:QLYS) is held by 424 institutional firms.

• Qualys saw its institutional ownership percentage rose to 98.0% in September 2025 from 96.4% in June 2025.
• Institutional share ownership changed by 1.42% QoQ, while the number of institutional owners saw a decrease of 1.40% YoY.
• During the quarter, 203 institutions bought more Qualys shares, 164 sold shares, and 57 of the 424 total investors held their position steady.
• The total number of shares held by institutions in Qualys increased to 35.38Mn as of September 2025, a net change of up by 496.59K shares quarter on quarter, and down 732.92K shares year over year.
• BlackRock, Inc. continues to be the largest institutional holder of Qualys as of September 30, 2025, with a position of 5.48Mn shares, representing 15.18% of the company's outstanding stock.
• Among the most significant buyers of Qualys during September 2025 were RWA WEALTH PARTNERS, LLC (610.75K), Alyeska Investment Group, L.P. (164.48K), Fundsmith LLP (152.26K), VANGUARD GROUP INC (123.96K), RENAISSANCE TECHNOLOGIES LLC (95.30K).
• Leading sellers of Qualys stock in September 2025 included MORGAN STANLEY (212.53K), BlackRock, Inc. (145.89K), VOLORIDGE INVESTMENT MANAGEMENT, LLC (64.36K), MILLENNIUM MANAGEMENT LLC (62.67K), TUDOR INVESTMENT CORP ET AL (62.27K).
• The top 10 institutional holders of Qualys for the quarter ending September 2025 included BlackRock, Inc. (5.48Mn), VANGUARD GROUP INC (4.40Mn), STATE STREET CORP (1.39Mn), GEODE CAPITAL MANAGEMENT, LLC (1.21Mn), Boston Trust Walden Corp (1.15Mn), FIRST TRUST ADVISORS LP (1.11Mn), Legal & General Group Plc (1.08Mn), Neuberger Berman Group LLC (1.05Mn), AQR CAPITAL MANAGEMENT LLC (1.01Mn), Fundsmith LLP (870.86K).