QLYS
Qualys, Inc.$224.12+0.00 (—)Prev Close$230.29·MCap$7.75B·P/E40.05·Vol—·Yield—
▲
Buys (12M)
0
$0.00
▼
Sells (12M)
53
$28.82M
◆
Net Activity
Net Seller
$28.82M
●
Active Insiders
6
last 12 mo
Over the past 12 months, insider activity at Qualys, Inc. (QLYS) has been exclusively selling, with 0 insider purchases totaling $0.00 and 53 insider sales totaling $28.82M. The most recent insider transaction was by POSEY BRUCE K (officer: CHIEF LEGAL OFFICER), who sold $167.0K worth of shares on Oct 21, 2026. Qualys, Inc. operates in the Technology sector, within the Software - Infrastructure industry, with a market cap of $7.75B.
QLYS Insider Trading Activity
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Oct 21, 2026 | POSEY BRUCE K | officer: CHIEF LEGAL OFFICER | Sell | 881 | $189.52 | $167.0K | 58,604 |
| Oct 15, 2026 | Thakar Sumedh S | director, officer: CEO & PRESIDENT | Sell | 2,400 | $190.81 | $457.9K | 178,438 |
| Sep 22, 2026 | POSEY BRUCE K | officer: CHIEF LEGAL OFFICER | Sell | 866 | $179.49 | $155.4K | 59,482 |
| Sep 15, 2026 | Thakar Sumedh S | director, officer: CEO & PRESIDENT | Sell | 2,600 | $171.70 | $446.4K | 182,938 |
| Sep 3, 2026 | Kim Joo Mi | officer: CHIEF FINANCIAL OFFICER | Sell | 1,030 | $169.62 | $174.7K | 75,450 |
| Sep 3, 2026 | Berquist Thomas | director | Sell | 511 | $175.27 | $89.6K | 6,270 |
| Aug 21, 2026 | Pfeiffer Wendy | director | Sell | 500 | $185.00 | $92.5K | 11,710 |
| Aug 21, 2026 | POSEY BRUCE K | officer: CHIEF LEGAL OFFICER | Sell | 866 | $184.23 | $159.5K | 60,323 |
| Aug 17, 2026 | Thakar Sumedh S | director, officer: CEO & PRESIDENT | Sell | 3,200 | $188.97 | $604.7K | 186,332 |
| Aug 4, 2026 | Kim Joo Mi | officer: CHIEF FINANCIAL OFFICER | Sell | 1,427 | $153.76 | $219.4K | 76,970 |
| Jul 21, 2026 | POSEY BRUCE K | officer: CHIEF LEGAL OFFICER | Sell | 882 | $158.17 | $139.5K | 63,328 |
| Jul 21, 2026 | Pfeiffer Wendy | director | Sell | 500 | $158.19 | $79.1K | 12,210 |
| Jul 15, 2026 | Thakar Sumedh S | director, officer: CEO & PRESIDENT | Sell | 2,600 | $161.35 | $419.5K | 196,386 |
| Jul 6, 2026 | Kim Joo Mi | officer: CHIEF FINANCIAL OFFICER | Sell | 965 | $143.44 | $138.4K | 81,215 |
| Jul 6, 2026 | POSEY BRUCE K | officer: CHIEF LEGAL OFFICER | Sell | 1,000 | $155.00 | $155.0K | 63,571 |
| Jul 1, 2026 | Thakar Sumedh S | director, officer: CEO & PRESIDENT | Sell | 10,000 | $140.00 | $1.40M | 196,686 |
| Jun 30, 2026 | Thakar Sumedh S | director, officer: CEO & PRESIDENT | Sell | 10,000 | $126.75 | $1.27M | 233,986 |
| Jun 29, 2026 | Thakar Sumedh S | director, officer: CEO & PRESIDENT | Sell | 10,000 | $120.48 | $1.20M | 236,886 |
| Jun 23, 2026 | POSEY BRUCE K | officer: CHIEF LEGAL OFFICER | Sell | 865 | $109.44 | $94.7K | 65,388 |
| Jun 23, 2026 | Pfeiffer Wendy | director | Sell | 500 | $110.55 | $55.3K | 12,710 |
| Jun 16, 2026 | Thakar Sumedh S | director, officer: CEO & PRESIDENT | Sell | 1,700 | $115.24 | $195.9K | 249,686 |
| Jun 15, 2026 | Berquist Thomas | director | Sell | 939 | $110.75 | $104.0K | 6,781 |
| Jun 15, 2026 | Hank Jeffrey P | director | Sell | 940 | $109.82 | $103.2K | 16,046 |
| Jun 3, 2026 | Kim Joo Mi | officer: CHIEF FINANCIAL OFFICER | Sell | 878 | $111.85 | $98.2K | 82,905 |
| Jun 2, 2026 | Thakar Sumedh S | director, officer: CEO & PRESIDENT | Sell | 13,200 | $114.73 | $1.51M | 262,486 |
| May 26, 2026 | Pfeiffer Wendy | director | Sell | 500 | $101.21 | $50.6K | 10,582 |
| May 21, 2026 | Kim Joo Mi | officer: CHIEF FINANCIAL OFFICER | Sell | 1,627 | $100.17 | $163.0K | 83,211 |
| May 21, 2026 | POSEY BRUCE K | officer: CHIEF LEGAL OFFICER | Sell | 3,249 | $100.25 | $325.7K | 66,351 |
| Mar 16, 2026 | POSEY BRUCE K | officer: CHIEF LEGAL OFFICER | Sell | 65 | $100.09 | $6.5K | 70,955 |
| Mar 6, 2026 | POSEY BRUCE K | officer: CHIEF LEGAL OFFICER | Sell | 100 | $100.18 | $10.0K | 71,020 |
| Feb 24, 2026 | POSEY BRUCE K | officer: CHIEF LEGAL OFFICER | Sell | 481 | $103.85 | $49.9K | 71,391 |
| Feb 6, 2026 | Kim Joo Mi | officer: CHIEF FINANCIAL OFFICER | Sell | 6,399 | $128.56 | $822.7K | 94,788 |
| Feb 4, 2026 | Kim Joo Mi | CHIEF FINANCIAL OFFICER | Sell | 6,799 | $128.46 | $873.4K | 0 |
| Feb 3, 2026 | Kim Joo Mi | officer: CHIEF FINANCIAL OFFICER | Sell | 9,446 | $129.51 | $1.22M | 89,795 |
| Feb 3, 2026 | POSEY BRUCE K | CHIEF LEGAL OFFICER | Sell | 3,645 | $127.52 | $464.8K | 0 |
| Feb 3, 2026 | Thakar Sumedh S | CEO & PRESIDENT | Sell | 28,493 | $127.52 | $3.63M | 0 |
| Feb 1, 2026 | Kim Joo Mi | CHIEF FINANCIAL OFFICER | Sell | 6,183 | $133.96 | $828.3K | 0 |
| Feb 1, 2026 | POSEY BRUCE K | CHIEF LEGAL OFFICER | Sell | 1,659 | $131.90 | $218.8K | 0 |
| Feb 1, 2026 | Thakar Sumedh S | CEO & PRESIDENT | Sell | 5,662 | $131.90 | $746.8K | 0 |
| Jan 22, 2026 | POSEY BRUCE K | officer: CHIEF LEGAL OFFICER | Sell | 995 | $132.11 | $131.5K | 69,030 |
| Jan 20, 2026 | POSEY BRUCE K | CHIEF LEGAL OFFICER | Sell | 1,101 | $132.34 | $145.7K | 0 |
| Jan 16, 2026 | Thakar Sumedh S | director, officer: CEO & PRESIDENT | Sell | 4,800 | $133.72 | $641.9K | 252,400 |
| Jan 14, 2026 | Thakar Sumedh S | CEO & PRESIDENT | Sell | 5,000 | $133.76 | $668.8K | 0 |
| Jan 5, 2026 | Kim Joo Mi | officer: CHIEF FINANCIAL OFFICER | Sell | 4,653 | $130.71 | $608.2K | 97,169 |
| Jan 2, 2026 | Kim Joo Mi | CHIEF FINANCIAL OFFICER | Sell | 4,753 | $130.77 | $621.5K | 0 |
| Dec 22, 2025 | POSEY BRUCE K | CHIEF LEGAL OFFICER | Sell | 1,077 | $142.46 | $153.4K | 0 |
| Dec 15, 2025 | Thakar Sumedh S | CEO & PRESIDENT | Sell | 8,500 | $147.12 | $1.25M | 0 |
| Dec 9, 2025 | Kim Joo Mi | CHIEF FINANCIAL OFFICER | Sell | 8,649 | $149.81 | $1.30M | 0 |
| Dec 3, 2025 | POSEY BRUCE K | CHIEF LEGAL OFFICER | Sell | 4,077 | $146.98 | $599.2K | 0 |
| Dec 2, 2025 | Kim Joo Mi | CHIEF FINANCIAL OFFICER | Sell | 7,506 | $146.59 | $1.10M | 0 |
Showing 1–50 of 260
1 / 6
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QLYS Insider Buying Activity
The following table shows recent insider purchases of Qualys, Inc. (QLYS) stock reported via SEC Form 4 filings.
No insider buying activity found for QLYS in the last 12 months.
QLYS Insider Selling Activity
The following table shows recent insider sales of Qualys, Inc. (QLYS) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Oct 21, 2026 | POSEY BRUCE K | officer: CHIEF LEGAL OFFICER | Sell | 881 | $189.52 | $167.0K | 58,604 |
| Oct 15, 2026 | Thakar Sumedh S | director, officer: CEO & PRESIDENT | Sell | 2,400 | $190.81 | $457.9K | 178,438 |
| Sep 22, 2026 | POSEY BRUCE K | officer: CHIEF LEGAL OFFICER | Sell | 866 | $179.49 | $155.4K | 59,482 |
| Sep 15, 2026 | Thakar Sumedh S | director, officer: CEO & PRESIDENT | Sell | 2,600 | $171.70 | $446.4K | 182,938 |
| Sep 3, 2026 | Kim Joo Mi | officer: CHIEF FINANCIAL OFFICER | Sell | 1,030 | $169.62 | $174.7K | 75,450 |
| Sep 3, 2026 | Berquist Thomas | director | Sell | 511 | $175.27 | $89.6K | 6,270 |
| Aug 21, 2026 | Pfeiffer Wendy | director | Sell | 500 | $185.00 | $92.5K | 11,710 |
| Aug 21, 2026 | POSEY BRUCE K | officer: CHIEF LEGAL OFFICER | Sell | 866 | $184.23 | $159.5K | 60,323 |
| Aug 17, 2026 | Thakar Sumedh S | director, officer: CEO & PRESIDENT | Sell | 3,200 | $188.97 | $604.7K | 186,332 |
| Aug 4, 2026 | Kim Joo Mi | officer: CHIEF FINANCIAL OFFICER | Sell | 1,427 | $153.76 | $219.4K | 76,970 |
| Jul 21, 2026 | POSEY BRUCE K | officer: CHIEF LEGAL OFFICER | Sell | 882 | $158.17 | $139.5K | 63,328 |
| Jul 21, 2026 | Pfeiffer Wendy | director | Sell | 500 | $158.19 | $79.1K | 12,210 |
| Jul 15, 2026 | Thakar Sumedh S | director, officer: CEO & PRESIDENT | Sell | 2,600 | $161.35 | $419.5K | 196,386 |
| Jul 6, 2026 | Kim Joo Mi | officer: CHIEF FINANCIAL OFFICER | Sell | 965 | $143.44 | $138.4K | 81,215 |
| Jul 6, 2026 | POSEY BRUCE K | officer: CHIEF LEGAL OFFICER | Sell | 1,000 | $155.00 | $155.0K | 63,571 |
| Jul 1, 2026 | Thakar Sumedh S | director, officer: CEO & PRESIDENT | Sell | 10,000 | $140.00 | $1.40M | 196,686 |
| Jun 30, 2026 | Thakar Sumedh S | director, officer: CEO & PRESIDENT | Sell | 10,000 | $126.75 | $1.27M | 233,986 |
| Jun 29, 2026 | Thakar Sumedh S | director, officer: CEO & PRESIDENT | Sell | 10,000 | $120.48 | $1.20M | 236,886 |
| Jun 23, 2026 | POSEY BRUCE K | officer: CHIEF LEGAL OFFICER | Sell | 865 | $109.44 | $94.7K | 65,388 |
| Jun 23, 2026 | Pfeiffer Wendy | director | Sell | 500 | $110.55 | $55.3K | 12,710 |
| Jun 16, 2026 | Thakar Sumedh S | director, officer: CEO & PRESIDENT | Sell | 1,700 | $115.24 | $195.9K | 249,686 |
| Jun 15, 2026 | Berquist Thomas | director | Sell | 939 | $110.75 | $104.0K | 6,781 |
| Jun 15, 2026 | Hank Jeffrey P | director | Sell | 940 | $109.82 | $103.2K | 16,046 |
| Jun 3, 2026 | Kim Joo Mi | officer: CHIEF FINANCIAL OFFICER | Sell | 878 | $111.85 | $98.2K | 82,905 |
| Jun 2, 2026 | Thakar Sumedh S | director, officer: CEO & PRESIDENT | Sell | 13,200 | $114.73 | $1.51M | 262,486 |
| May 26, 2026 | Pfeiffer Wendy | director | Sell | 500 | $101.21 | $50.6K | 10,582 |
| May 21, 2026 | Kim Joo Mi | officer: CHIEF FINANCIAL OFFICER | Sell | 1,627 | $100.17 | $163.0K | 83,211 |
| May 21, 2026 | POSEY BRUCE K | officer: CHIEF LEGAL OFFICER | Sell | 3,249 | $100.25 | $325.7K | 66,351 |
| Mar 16, 2026 | POSEY BRUCE K | officer: CHIEF LEGAL OFFICER | Sell | 65 | $100.09 | $6.5K | 70,955 |
| Mar 6, 2026 | POSEY BRUCE K | officer: CHIEF LEGAL OFFICER | Sell | 100 | $100.18 | $10.0K | 71,020 |
| Feb 24, 2026 | POSEY BRUCE K | officer: CHIEF LEGAL OFFICER | Sell | 481 | $103.85 | $49.9K | 71,391 |
| Feb 6, 2026 | Kim Joo Mi | officer: CHIEF FINANCIAL OFFICER | Sell | 6,399 | $128.56 | $822.7K | 94,788 |
| Feb 4, 2026 | Kim Joo Mi | CHIEF FINANCIAL OFFICER | Sell | 6,799 | $128.46 | $873.4K | 0 |
| Feb 3, 2026 | Kim Joo Mi | officer: CHIEF FINANCIAL OFFICER | Sell | 9,446 | $129.51 | $1.22M | 89,795 |
| Feb 3, 2026 | POSEY BRUCE K | CHIEF LEGAL OFFICER | Sell | 3,645 | $127.52 | $464.8K | 0 |
| Feb 3, 2026 | Thakar Sumedh S | CEO & PRESIDENT | Sell | 28,493 | $127.52 | $3.63M | 0 |
| Feb 1, 2026 | Kim Joo Mi | CHIEF FINANCIAL OFFICER | Sell | 6,183 | $133.96 | $828.3K | 0 |
| Feb 1, 2026 | POSEY BRUCE K | CHIEF LEGAL OFFICER | Sell | 1,659 | $131.90 | $218.8K | 0 |
| Feb 1, 2026 | Thakar Sumedh S | CEO & PRESIDENT | Sell | 5,662 | $131.90 | $746.8K | 0 |
| Jan 22, 2026 | POSEY BRUCE K | officer: CHIEF LEGAL OFFICER | Sell | 995 | $132.11 | $131.5K | 69,030 |
| Jan 20, 2026 | POSEY BRUCE K | CHIEF LEGAL OFFICER | Sell | 1,101 | $132.34 | $145.7K | 0 |
| Jan 16, 2026 | Thakar Sumedh S | director, officer: CEO & PRESIDENT | Sell | 4,800 | $133.72 | $641.9K | 252,400 |
| Jan 14, 2026 | Thakar Sumedh S | CEO & PRESIDENT | Sell | 5,000 | $133.76 | $668.8K | 0 |
| Jan 5, 2026 | Kim Joo Mi | officer: CHIEF FINANCIAL OFFICER | Sell | 4,653 | $130.71 | $608.2K | 97,169 |
| Jan 2, 2026 | Kim Joo Mi | CHIEF FINANCIAL OFFICER | Sell | 4,753 | $130.77 | $621.5K | 0 |
| Dec 22, 2025 | POSEY BRUCE K | CHIEF LEGAL OFFICER | Sell | 1,077 | $142.46 | $153.4K | 0 |
| Dec 15, 2025 | Thakar Sumedh S | CEO & PRESIDENT | Sell | 8,500 | $147.12 | $1.25M | 0 |
| Dec 9, 2025 | Kim Joo Mi | CHIEF FINANCIAL OFFICER | Sell | 8,649 | $149.81 | $1.30M | 0 |
| Dec 3, 2025 | POSEY BRUCE K | CHIEF LEGAL OFFICER | Sell | 4,077 | $146.98 | $599.2K | 0 |
| Dec 2, 2025 | Kim Joo Mi | CHIEF FINANCIAL OFFICER | Sell | 7,506 | $146.59 | $1.10M | 0 |
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