Insider Trading
Current insider transactions (SEC Form 4) — buys and sells by officers, directors, and major shareholders.
| Ticker | Insider | Title | Date | Transaction | Price ($) | Shares | Value ($) | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|
| QLYS | Pfeiffer Wendy | Director | 07/20/2026 | Verkauf | 158.19 | 500 | 79,095 | Form 4 |
| QLYS | Posey Bruce K | CHIEF LEGAL OFFICER | 07/20/2026 | Verkauf | 160.18 | 43 | 6,888 | Form 4 |
| QLYS | Posey Bruce K | CHIEF LEGAL OFFICER | 07/20/2026 | Verkauf | 159.35 | 262 | 41,749 | Form 4 |
| QLYS | Posey Bruce K | CHIEF LEGAL OFFICER | 07/20/2026 | Verkauf | 158.06 | 334 | 52,791 | Form 4 |
| QLYS | Posey Bruce K | CHIEF LEGAL OFFICER | 07/20/2026 | Verkauf | 156.71 | 243 | 38,081 | Form 4 |
| QLYS | Thakar Sumedh S | CEO & PRESIDENT | 07/14/2026 | Verkauf | 161.69 | 1,570 | 253,861 | Form 4 |
| QLYS | Thakar Sumedh S | CEO & PRESIDENT | 07/14/2026 | Verkauf | 160.81 | 730 | 117,395 | Form 4 |
| QLYS | Thakar Sumedh S | CEO & PRESIDENT | 07/14/2026 | Verkauf | 163.57 | 200 | 32,713 | Form 4 |
| QLYS | Thakar Sumedh S | CEO & PRESIDENT | 07/14/2026 | Verkauf | 155.30 | 100 | 15,530 | Form 4 |
A compact market overview — not investment advice. Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q).