QLYSTechnologyMid-Cap
QUALYS, INC. Insider Trading Activity
Every SEC Form 4 insider transaction reported for QUALYS, INC. (QLYS), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud Research Team · SEC Form 4 & insider trading data analysts
Last updated:
Quick Answer
Are QLYS insiders buying or selling?
QUALYS, INC. insiders reported 1 open-market buys ($627.9) and 368 sells ($428.3M) across 369 Form 4 filings — a net selling position of $428.3M.
Source: SEC EDGAR Form 4
Key Statistics (as of Aug 21, 2026)
Total Form 4 filings
369
SEC EDGAR
Insider filers
16
Insider buys (1)
$627.9
Insider sells (368)
$428.3M
Insider sentiment
Net sellingNet insider flow of $428.3M in net selling.
Recent QLYS insider transactions
| Date | Insider | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 21, 2026 | Bruce K Posey | CHIEF LEGAL OFFICER | Sale | 866 | $184.23 | $159.5K |
| Aug 21, 2026 | Wendy Pfeiffer | Director | Sale | 500 | $185.00 | $92.5K |
| Aug 17, 2026 | Sumedh S Thakar | CEO & PRESIDENT | Sale | 3.2K | $188.97 | $604.7K |
| Aug 4, 2026 | Joo Mi Kim | CHIEF FINANCIAL OFFICER | Sale | 1.6K | $153.04 | $249.0K |
| Jul 21, 2026 | Bruce K Posey | CHIEF LEGAL OFFICER | Sale | 882 | $158.17 | $139.5K |
| Jul 21, 2026 | Wendy Pfeiffer | Director | Sale | 500 | $158.19 | $79.1K |
| Jul 15, 2026 | Sumedh S Thakar | CEO & PRESIDENT | Sale | 3.2K | $160.50 | $513.6K |
| Jul 6, 2026 | Bruce K Posey | CHIEF LEGAL OFFICER | Sale | 1.0K | $155.00 | $155.0K |
| Jul 6, 2026 | Joo Mi Kim | CHIEF FINANCIAL OFFICER | Sale | 965 | $143.44 | $138.4K |
| Jul 2, 2026 | Sumedh S Thakar | CEO & PRESIDENT | Sale | 30.0K | $135.00 | $4.0M |
| Jun 30, 2026 | Sumedh S Thakar | CEO & PRESIDENT | Sale | 10.0K | $126.75 | $1.3M |
| Jun 29, 2026 | Sumedh S Thakar | CEO & PRESIDENT | Sale | 10.0K | $120.48 | $1.2M |
| Jun 23, 2026 | Bruce K Posey | CHIEF LEGAL OFFICER | Sale | 865 | $109.44 | $94.7K |
| Jun 23, 2026 | Wendy Pfeiffer | Director | Sale | 500 | $110.55 | $55.3K |
| Jun 16, 2026 | Sumedh S Thakar | CEO & PRESIDENT | Sale | 3.2K | $114.80 | $367.4K |
| Jun 15, 2026 | Thomas Berquist | Director | Sale | 939 | $110.75 | $104.0K |
| Jun 15, 2026 | Jeffrey P Hank | Director | Sale | 940 | $109.82 | $103.2K |
| Jun 3, 2026 | Joo Mi Kim | CHIEF FINANCIAL OFFICER | Sale | 1.0K | $111.67 | $115.1K |
| Jun 2, 2026 | Sumedh S Thakar | CEO & PRESIDENT | Sale | 13.2K | $114.73 | $1.5M |
| May 26, 2026 | Wendy Pfeiffer | Director | Sale | 500 | $101.21 | $50.6K |
| May 21, 2026 | Bruce K Posey | CHIEF LEGAL OFFICER | Sale | 3.2K | $100.25 | $325.7K |
| May 21, 2026 | Joo Mi Kim | CHIEF FINANCIAL OFFICER | Sale | 1.6K | $100.17 | $163.0K |
| Mar 17, 2026 | Bruce K Posey | CHIEF LEGAL OFFICER | Sale | 65 | $100.09 | $6.5K |
| Mar 6, 2026 | Bruce K Posey | CHIEF LEGAL OFFICER | Sale | 100 | $100.18 | $10.0K |
| Feb 24, 2026 | Bruce K Posey | CHIEF LEGAL OFFICER | Sale | 481 | $103.85 | $49.9K |
Showing the 25 most recent of 369 Form 4 filings for QUALYS, INC..
Most active QLYS insiders
- Sumedh S Thakar127 filings
- Bruce K Posey90 filings
- Joo Mi Kim36 filings
- Melissa B Fisher24 filings
- Jeffrey P Hank20 filings
Ask anything about QLYS insider activity
Use Trabud's AI agent to query QUALYS, INC.'s Form 4 history in plain English — "Show me QLYS CEO purchases this year" or compare it against any other ticker.
Open the AI agentQLYS insider trading FAQ
Are QUALYS, INC. insiders buying or selling?
Across 369 SEC Form 4 filings, QUALYS, INC. (QLYS) insiders reported 1 open-market purchases totaling $627.9 and 368 sales totaling $428.3M. That is a net selling position of $428.3M.
How many insiders trade QLYS stock?
16 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for QUALYS, INC.. The most recent filing was accepted on Aug 21, 2026.
Where does Trabud get QLYS insider trading data?
All QLYS insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.
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