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. (QLYS) director Thomas Berquist reported selling 511 shares of common stock on September 2, 2026 at $175.27 per share in an open-market or private sale. After this sale, he directly holds 6,270 shares of QUALYS common stock. The sale was made under a Rule 10b5-1 trading plan adopted on February 27, 2026.
QUALYS, INC. (QLYS) reports that Chief Financial Officer Joo Mi Kim sold a total of 1,030 shares of common stock on September 2, 2026 in multiple open-market transactions under a Rule 10b5-1 trading plan adopted on August 12, 2025. The reported weighted average sale prices for the tranches were approximately $167.49, $168.75, $170.05, $171.14, and $172.37 per share, based on price ranges disclosed in the footnotes.
QUALYS, INC. (QLYS) reported that Chief Legal Officer Bruce K. Posey sold a total of 866 shares of Common Stock on August 20, 2026 in four open-market transactions under a Rule 10b5-1 trading plan adopted on August 21, 2025. Reported weighted-average sale prices ranged from about $181.99 to $185.91 per share, with each price reflecting multiple executions within specified price ranges.
QUALYS, INC. (QLYS) director Wendy Pfeiffer reported a sale of company stock. On August 20, 2026, she sold 500 shares of Qualys common stock at $185.00 per share in a sale described as an open market or private transaction. The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted on February 20, 2026. Following this sale, she directly holds 11,710 shares of Qualys common stock.
QUALYS, INC. (QLYS) CEO & President Sumedh S Thakar reported multiple open-market sales of common stock on August 14, 2026. In total, he sold 3,200 shares at weighted-average prices ranging from about $185.79 to $192.53 per share. All sales were executed under a Rule 10b5-1 trading plan adopted on February 27, 2026, indicating they were pre-arranged rather than opportunistic discretionary trades.
Qualys, Inc. reports that its Chief Financial Officer, Joo Mi Kim, sold 1,627 shares of common stock on August 3, 2026, in six non-derivative transactions. The sales were executed as open market or private transactions pursuant to a Rule 10b5-1 trading plan adopted on August 12, 2025, with several prices reported as weighted averages over specified ranges.
QUALYS, INC. Chief Financial Officer Joo Mi Kim reported a tax-related share withholding. On 2026-08-01, 3,845 shares of common stock were withheld at $144.75 per share to cover her tax liability arising from the vesting of restricted stock units. After this non-market, tax-withholding disposition, she directly holds 77,370 shares of Qualys common stock.
Bruce K. Posey, Chief Legal Officer of QUALYS, INC., reported a tax-withholding disposition of 2,269 shares of common stock on August 1, 2026, at $144.75 per share. The shares were withheld to cover taxes on vesting restricted stock units, leaving him with 60,420 directly held shares.
Qualys, Inc. CEO and President Sumedh S. Thakar reported a tax-withholding disposition of 6,748 shares of common stock on August 1, 2026, at $144.75 per share. The shares were withheld to cover his tax liability from vesting restricted stock units, leaving him with 186,738 shares held directly afterward.
Bruce K. Posey, Chief Legal Officer of Qualys, Inc., sold a total of 882 shares of Qualys common stock on July 20, 2026 in a series of open market or private transactions. The sales were executed under a Rule 10b5-1 trading plan adopted on August 21, 2025. The transactions occurred in four tranches: 243 shares at a weighted average price of $156.7107 per share (with individual prices ranging from $156.28 to $157.08), 334 shares at a weighted average price of $158.0580 (ranging from $157.79 to $158.49), 262 shares at a weighted average price of $159.3459 (ranging from $158.91 to $159.76), and 43 shares at $160.18 per share.
Wendy Pfeiffer, a director of Qualys, Inc., reported selling 500 shares of common stock on 2026-07-20 at a price of $158.19 per share in an open market or private transaction. The sale was executed under a Rule 10b5-1 trading plan adopted on February 20, 2026, and she now directly holds 12,210 shares of Qualys common stock.
QUALYS, INC. CEO & President Sumedh S. Thakar reported open-market sales of 3,200 shares of common stock on July 14, 2026, in eight separate transactions at various prices, including $149.3000 and $163.5650 per share. According to the disclosure, these sales were effected under a Rule 10b5-1 trading plan adopted on February 27, 2026. Following the reported transactions, Thakar holds 193,486 shares of Qualys common stock directly.
QUALYS, INC. chief legal officer Bruce K. Posey reported an open-market sale of 1,000 shares of common stock at $155.00 per share. The transaction was executed under a pre-arranged Rule 10b5-1 trading plan adopted on August 21, 2025. Following this sale, he directly holds 63,571 shares.
QUALYS, INC. Chief Financial Officer Joo Mi Kim reported an open-market sale of 965 shares of Common Stock at $143.44 per share on July 2, 2026. The transaction was executed under a pre-arranged Rule 10b5-1 trading plan adopted on August 12, 2025.
After this sale, she directly held 81,215 shares. The filing reflects a relatively small, pre-planned sale compared with her remaining direct ownership position.
QUALYS, INC. CEO and President Sumedh S. Thakar reported open-market sales of a total of 30,000 shares of Common Stock on June 30, 2026. The transactions were executed in three tranches of 10,000 shares each at prices of $140.00, $135.00, and $130.00 per share. These sales were carried out under a pre-arranged Rule 10b5-1 trading plan adopted on February 27, 2026. Following the transactions, Thakar directly held 196,686 shares of Qualys Common Stock.
QUALYS, INC. CEO and President Sumedh S. Thakar reported open-market sales of a total of 10,000 shares of common stock on June 29, 2026, executed in three separate transactions at weighted average prices between about $125 and $128 per share. These trades were carried out under a pre-arranged Rule 10b5-1 trading plan adopted on February 27, 2026, indicating they were scheduled in advance. Following the transactions, Thakar directly holds 226,686 shares of Qualys common stock.
QUALYS, INC. CEO and President Sumedh S. Thakar sold a total of 10,000 shares of common stock in open-market transactions on June 26, 2026. The reported sales were executed at prices around $120–$121 per share and were carried out under a pre-arranged Rule 10b5-1 trading plan adopted on February 27, 2026. The filing indicates that Thakar continues to directly own more than 200,000 Qualys shares after these transactions.
QUALYS, INC. chief legal officer Bruce K. Posey reported selling 865 shares of Qualys common stock in multiple open-market transactions on June 22, 2026. The reported sale prices ranged roughly from the low $107 area to just above $112 per share, based on weighted average prices.
The filing notes these sales were executed under a pre-arranged Rule 10b5-1 trading plan adopted on August 21, 2025, indicating the trades were scheduled in advance rather than timed opportunistically. After these transactions, Posey continues to hold a direct ownership position in Qualys common stock.
QUALYS, INC. director Wendy Pfeiffer reported an open-market sale of 500 shares of Common Stock at $110.55 per share. After this transaction, she directly holds 12,710 shares. The sale was carried out under a pre-arranged Rule 10b5-1 trading plan adopted on February 20, 2026, indicating it was scheduled in advance as part of a trading program rather than a discretionary trade.
QUALYS, INC. CEO and President Sumedh S. Thakar sold a total of 3,200 shares of common stock in open-market transactions on June 15, 2026. The shares were sold in three blocks at weighted average prices of about $115.66, $114.31 and $112.08 per share.
These sales were made under a pre-arranged Rule 10b5-1 trading plan adopted on February 27, 2026. Following the transactions, Thakar directly holds 246,686 shares of Qualys common stock, so the sale reflects only a small portion of his overall stake.
QUALYS, INC. director Thomas Berquist reported an open-market sale of 939 shares of common stock at $110.75 per share. The transaction was made under a pre-arranged Rule 10b5-1 trading plan adopted on February 27, 2026. After the sale, he directly holds 6,781 shares.
QUALYS, INC. director Jeffrey P. Hank reported open-market sales of company common stock across two days. He sold 470 shares at $108.88 per share on June 11, 2026, and another 470 shares at $110.75 per share on June 12, 2026.
After these transactions, he directly holds 15,576 shares of Qualys common stock. According to a footnote, the sale transaction reported in this Form 4 was effected under a pre-arranged Rule 10b5-1 trading plan adopted by the reporting person.
Zangardi John A. reported acquisition or exercise transactions in this Form 4 filing.
QUALYS, INC. director John A. Zangardi received a grant of 2,628 shares of common stock in the form of restricted stock units as equity compensation. These units vest on the earlier of June 10, 2027 or the day before Qualys' 2027 annual meeting of stockholders, contingent on his continued service. Following this award, he directly holds 6,699 shares of common stock and also reports 5 shares held indirectly through his son.
Hank Jeffrey P reported acquisition or exercise transactions in this Form 4 filing.
QUALYS, INC. director Jeffrey P. Hank reported an equity compensation grant of 2,628 shares of Common Stock in the form of restricted stock units. These units vest on the earlier of June 10, 2027, or the day before the company’s 2027 annual stockholders’ meeting, contingent on his continued service.
Following this grant, Hank directly holds 16,516 shares of Qualys common stock. The transaction reflects a non-cash award to a board member rather than an open-market purchase or sale.
Rogers Kristi Marie reported acquisition or exercise transactions in this Form 4 filing.
QUALYS, INC. director Kristi Marie Rogers reported receiving a grant of 2,628 shares of Common Stock in the form of restricted stock units at no cash cost. After this award, she holds 11,224 shares directly. The RSUs vest on the earlier of June 10, 2027 or the day before Qualys’ 2027 annual meeting of stockholders, as long as she continues in service through the vesting date.
Pfeiffer Wendy reported acquisition or exercise transactions in this Form 4 filing.
QUALYS, INC. director Wendy Pfeiffer received an equity award of 2,628 shares of common stock in the form of restricted stock units at no cash cost. These units vest on the earlier of June 10, 2027, or the day before the company’s 2027 annual meeting of stockholders, conditioned on her continued service. Following this grant, she holds 13,210 shares of Qualys common stock directly.
Brooks Bradford L. reported acquisition or exercise transactions in this Form 4 filing.
QUALYS, INC. director Bradford L. Brooks received an equity grant of 2,628 shares of common stock in the form of restricted stock units. These units vest on the earlier of June 10, 2027, or the day before Qualys’ 2027 annual stockholder meeting, assuming continued service. Following this award, Brooks holds 5,826 shares directly.
QUALYS, INC. director Thomas Berquist reported an equity compensation grant in the form of restricted stock units tied to the company’s common stock. He was awarded 2,628 restricted stock units, with no cash paid per unit.
These units vest on the earlier of June 10, 2027 or the day before Qualys’ 2027 annual meeting of stockholders, subject to his continued service through the vesting date. Following this award, Berquist’s direct holdings in Qualys common stock total 7,720 shares, showing this is a routine compensation-related acquisition rather than an open-market purchase.
QUALYS, INC. Chief Financial Officer Joo Mi Kim reported selling a total of 1,031 shares of Common Stock on June 2, 2026 in open-market transactions. Sale prices ranged from about $109 to $114 per share, reported as weighted averages by price band.
The filing notes these sales were executed under a pre-arranged Rule 10b5-1 trading plan adopted on August 12, 2025, indicating they were scheduled in advance. After the reported transactions, Form 4 line items show Ms. Kim continuing to hold a sizable direct stake in Qualys shares.
QUALYS, INC. CEO and President Sumedh S. Thakar reported open-market sales of a total of 13,200 shares of Common Stock on June 1, 2026. The transactions were executed in multiple trades at weighted average prices ranging from about $112 to $116 per share.
According to a footnote, these sales were carried out under a pre-arranged Rule 10b5-1 trading plan adopted by the reporting person on February 27, 2026, indicating the timing was set in advance as part of a systematic selling program.
QUALYS, INC. director Wendy Pfeiffer reported an open-market sale of 500 shares of Common Stock at $101.21 per share. After this transaction, she directly owns 10,582 shares. The sale was carried out under a pre-arranged Rule 10b5-1 trading plan adopted on February 20, 2026, indicating it was scheduled in advance as part of ongoing portfolio management.
QUALYS, INC. chief legal officer Bruce K. Posey reported open-market sales of company common stock. He sold a total of 3,249 shares on May 19–20, 2026 at weighted average prices around $100–$101 per share under a pre-arranged Rule 10b5-1 trading plan. After these transactions, he directly holds 65,436 shares of Qualys common stock, indicating he retains a substantial equity stake despite the sales.
QUALYS, INC. Chief Financial Officer Joo Mi Kim reported an open-market sale of 1,627 shares of common stock on May 19, 2026 at a weighted average price of $100.1696 per share. After this transaction, she directly owns 83,211 shares. The sale was executed under a pre-arranged Rule 10b5-1 trading plan adopted on August 12, 2025, indicating it was scheduled in advance rather than timed discretionarily.
QUALYS, INC. chief legal officer Bruce K. Posey reported a routine tax-related share disposition. On May 1, 2026, 2,270 shares of common stock were withheld at $88.53 per share to cover his tax liability from vesting restricted stock units, rather than sold in the open market. After this withholding, he directly holds 68,685 Qualys shares.
QUALYS, INC. Chief Financial Officer Joo Mi Kim reported an automatic share disposition related to taxes on equity compensation. On May 1, 2026, 3,845 shares of common stock were withheld at $88.53 per share to cover tax liabilities from vesting restricted stock units, rather than being sold on the open market. After this withholding, Kim directly held 84,838 shares of Qualys common stock. A footnote also notes that this total includes 194 shares acquired earlier through the company’s Employee Stock Purchase Plan in an exempt transaction.
QUALYS, INC. CEO and President Sumedh S. Thakar reported a routine tax-related share disposition. On the RSU vesting date, 6,748 shares of common stock were withheld at $88.53 per share to cover his tax liability, rather than being sold on the open market.
After this withholding, he directly holds 263,086 shares of Qualys common stock. This total includes 193 shares acquired on February 15, 2026 through the company’s Employee Stock Purchase Plan in an exempt transaction.
QUALYS, INC. chief legal officer Bruce K. Posey reported a small open-market sale of common stock. He sold 65 shares on March 13, 2026 at an average price of about $100.09 per share and held 70,955 shares afterward.
The filing notes that this transaction was carried out under a pre-arranged Rule 10b5-1 trading plan adopted on August 21, 2025, indicating it was scheduled in advance rather than timed discretionarily.
Qualys chief legal officer Bruce K. Posey reported an open-market sale of 100 shares of common stock at a weighted average price of $100.1835 per share. The sale was executed under a Rule 10b5-1 trading plan adopted on August 21, 2025, and left him holding 71,020 shares.
Qualys, Inc. chief legal officer Bruce K. Posey reported selling 481 shares of common stock in open‑market transactions under a pre‑arranged Rule 10b5‑1 trading plan. The sales on February 20, 2026 were executed at weighted average prices ranging from about $102.88 to $105.32 per share. Following these sales, he directly holds 71,120 Qualys shares, including 194 shares recently acquired through the company’s employee stock purchase plan.
Qualys chief financial officer Joo Mi Kim reported multiple open-market sales of company common stock. On February 4, 2026, she sold blocks of 500, 400, 2,051, 3,648, and 200 shares at weighted average prices between $124.99 and $129.81 per share.
After these sales, she directly held 88,489 Qualys shares. All transactions were executed under a pre-established Rule 10b5-1 trading plan that she adopted on August 12, 2025, which is designed to allow scheduled sales independent of day-to-day market conditions.
Qualys, Inc. chief financial officer Joo Mi Kim reported multiple equity award vestings and related tax withholdings in company stock on February 3, 2026. Several performance share awards from 2022, 2023, and 2024 vested after the board determined performance conditions were met, resulting in stock being acquired at $0 per share. The company then withheld portions of these shares at $127.52 per share to cover Kim’s tax liabilities. Following all reported transactions, Kim directly owns 95,288 shares of Qualys common stock.
Qualys, Inc. chief legal officer Bruce K. Posey reported multiple equity award vestings and related tax withholdings in company stock. On February 3, 2026, he acquired several lots of common shares at $0 per share as performance-based restricted stock units vested after the board confirmed performance conditions were met.
To cover tax liabilities from these vestings, Posey had smaller blocks of shares withheld at a price of $127.52 per share, rather than selling stock in the open market. After the reported transactions, he directly owned 71,407 shares of Qualys common stock.
Qualys, Inc. CEO and President Sumedh S. Thakar reported multiple equity-compensation transactions in company common stock on February 3, 2026. Several performance share awards vested after the Board determined their performance conditions were met, including 20,427, 19,984 and 15,184 shares from grants made in 2022, 2023 and 2024.
Shares were also withheld at a price of $127.52 per share (transactions coded "F") to cover Thakar’s tax liabilities upon vesting, including 10,394, 10,168 and 7,726 shares tied to those awards. After these transactions, Thakar directly owned 269,641 shares of Qualys common stock.
Qualys, Inc.'s chief financial officer Joo Mi Kim reported share sales and tax withholding transactions in company stock. On February 1, 2026, 2,769 shares of common stock were withheld at $131.90 per share to cover tax liabilities from vesting restricted stock units. On February 2, 2026, she sold 2,108 shares at a weighted average price of $135.0468, 1,006 shares at $136.37, and 300 shares at $137.1908 per share. These sales were made under a pre-arranged Rule 10b5-1 trading plan adopted on August 12, 2025. Following the last reported transaction, Kim directly owned 88,489 shares of Qualys common stock.
Qualys, Inc. chief legal officer Bruce K. Posey reported a routine tax-related transaction in company stock. On 02/01/2026, 1,659 shares of Qualys common stock were withheld to cover his tax liability arising from the vesting of restricted stock units.
After this withholding, Posey directly beneficially owned 66,939 shares of Qualys common stock.
Qualys, Inc. CEO and President Sumedh S. Thakar, who also serves as a director, reported an automatic share withholding related to equity compensation. On 02/01/2026, 5,662 shares of common stock were withheld at $131.90 per share to cover his tax liability from vesting restricted stock units. After this tax withholding, he directly beneficially owned 242,138 shares of Qualys common stock.
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.