Vanguard Capital Management Discloses New 5.2% Stake in Qualys Inc (QLYS)

On April 30, 2026, Vanguard Capital Management LLC filed a Schedule 13G with the SEC, reporting a new 5.2% stake in Qualys Inc (QLYS). As of the event date on March 31, 2026, Vanguard beneficially owns 1,858,676 shares of Qualys common stock. This position represents a significant increase from a previously reported 0.0% ownership interest, crossing the 5% regulatory threshold. The filing indicates that Vanguard Capital Management exercises sole dispositive power over all 1,858,676 shares, while holding sole voting power over 274,070 shares. The reporting person is an investment adviser, and the securities were acquired in the ordinary course of business without the intent to influence or change the control of the issuer. The filing also covers several Vanguard affiliates, including Vanguard Asset Management Limited and Vanguard Global Advisers, LLC. No other single person associated with the filing holds an interest exceeding 5% of the class. Qualys Inc is headquartered in Foster City, California.