Every Form 4 that Qualys, Inc. (QLYS) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow QLYS and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full QLYS filings page.
Qualys, Inc.'s Chief Legal Officer Bruce K. Posey reported selling a total of 1,101 shares of common stock on January 20, 2026 in multiple open-market transactions. The sales, reported on a Form 4, were executed at weighted average prices between $131.35 and $133.82 per share under a pre-arranged Rule 10b5-1 trading plan adopted on August 21, 2025. After these transactions, Posey beneficially owns 68,598 shares of Qualys common stock directly.
Qualys CEO and president Sumedh S. Thakar reported planned stock sales in his role as an insider of Qualys, Inc. On January 14, 2026, he sold a total of 5,000 shares of Qualys common stock in several open-market transactions at reported weighted-average prices ranging from about the low $130s to mid $130s per share. These transactions were marked with code “S” for sales.
All sales were made pursuant to a Rule 10b5-1 trading plan that he adopted on February 26, 2025, which is designed to pre-schedule trades. After these transactions, Thakar beneficially owned 247,800 shares of Qualys common stock in direct form.
Qualys, Inc. CEO, President and director Sumedh S. Thakar reported an insider transaction involving stock options and common shares. On 12/15/2025, he exercised a stock option for 6,500 shares of common stock at an exercise price of $25.56 per share, increasing his direct holdings.
That same day, he sold multiple blocks of Qualys common stock in open-market transactions, including 2,600 shares at $145.4927 per share and other sales at higher weighted-average prices. After these trades, he directly beneficially owned 252,800 shares of Qualys common stock. The filing notes that the sales were made under a Rule 10b5-1 trading plan adopted on February 26, 2025.
Qualys, Inc. (QLYS) reported an insider stock sale by its Chief Financial Officer. On 11/21/2025, the CFO sold a total of 7,694 shares of Qualys common stock in multiple open-market transactions, all marked as sales. The trades were executed under a pre-arranged Rule 10b5-1 trading plan adopted on August 12, 2025.
The filing states that the sale prices were weighted averages for trades within price ranges from $137.19 to $144.47 per share, and detailed price breakdowns are available upon request. Following these transactions, the CFO beneficially owns 115,580 shares of Qualys common stock, held directly.
Qualys, Inc. (QLYS) CEO and President Sumedh S. Thakar reported an option exercise and related share sales. On 11/14/2025 he exercised a stock option covering 6,500 shares of common stock at $25.56 per share. That same day he sold blocks of Qualys common stock totaling 8,500 shares at weighted average prices between about $140.71 and $143.83 per share, in several transactions. After these transactions, he directly owned 254,800 shares of Qualys common stock. The filing notes that the sales were made under a pre-arranged Rule 10b5-1 trading plan adopted on February 26, 2025, which is designed to allow insiders to sell shares according to a set schedule.
Qualys, Inc. (QLYS) CEO and President Sumedh S. Thakar reported an open-market sale of 2,200 shares of Qualys common stock. The transaction took place on 11/12/2025 at a weighted average price of $155.0427 per share, with individual sale prices ranging from $155.00 to $155.47. The filing shows that Thakar remains a significant shareholder, with 256,800 shares of Qualys common stock beneficially owned directly after this transaction. The sale was executed under a Rule 10b5-1 trading plan that Thakar adopted on February 26, 2025, which is designed to allow pre-arranged trading according to specified instructions.
Qualys (QLYS) reported an insider transaction by CFO Joo Mi Kim on 11/01/2025. The filing shows 3,802 shares of common stock were withheld to cover taxes related to the vesting of restricted stock units, coded F, at a price of $123.26 per share.
Following this administrative withholding, Kim’s beneficial ownership stands at 123,274 shares, held directly. The transaction reflects routine tax settlement rather than an open‑market sale.
Qualys (QLYS) reported an insider transaction by Chief Legal Officer Bruce K. Posey. On 11/01/2025, 2,279 shares of common stock were withheld (Transaction Code F) to cover taxes upon vesting of restricted stock units at a price of $123.26 per share. Following this administrative withholding, Posey beneficially owns 74,853 shares, held directly.
Code F indicates a tax-withholding event tied to equity vesting, not an open‑market sale. The filing lists the officer’s role and direct ownership after the transaction.
Qualys (QLYS) reported an insider transaction by CEO & President and Director Sumedh S. Thakar. On 11/01/2025, 6,043 shares of common stock were withheld at $123.26 per share to cover taxes related to the vesting of restricted stock units, coded “F” on the form.
Following this administrative withholding, Thakar directly beneficially owns 259,000 Qualys shares. The filing reflects tax settlement mechanics tied to equity compensation rather than an open-market sale.