As of the latest Form 4 filed Jul 1, 2026.
What Qualys Inc insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 34 most recent filings for QLYS.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-07-01 | 2026-06-30 | Thakar Sumedh S CEO & PRESIDENT | SSale | −10.0K | $140.00 | $1.40M | Yes (planned) | Form 4 ↗ |
| 2026-07-01 | 2026-06-30 | Thakar Sumedh S, CEO & PRESIDENT | SSale | −10.0K | $135.00 | $1.35M | Yes (planned) | Form 4 ↗ |
| 2026-07-01 | 2026-06-30 | Thakar Sumedh S, CEO & PRESIDENT | SSale | −10.0K | $130.00 | $1.30M | Yes (planned) | Form 4 ↗ |
| 2026-06-30 | 2026-06-29 | Thakar Sumedh S CEO & PRESIDENT | SSale | −2.31K | $127.66 | $294K | Yes (planned) | Form 4 ↗ |
| 2026-06-30 | 2026-06-29 | Thakar Sumedh S, CEO & PRESIDENT | SSale | −4.99K | $126.96 | $634K | Yes (planned) | Form 4 ↗ |
| 2026-06-30 | 2026-06-29 | Thakar Sumedh S, CEO & PRESIDENT | SSale | −2.70K | $125.60 | $339K | Yes (planned) | Form 4 ↗ |
| 2026-06-29 | 2026-06-26 | Thakar Sumedh S CEO & PRESIDENT | SSale | −200.00 | $121.10 | $24.2K | Yes (planned) | Form 4 ↗ |
| 2026-06-29 | 2026-06-26 | Thakar Sumedh S, CEO & PRESIDENT | SSale | −9.80K | $120.47 | $1.18M | Yes (planned) | Form 4 ↗ |
| 2026-06-23 | 2026-06-22 | Pfeiffer Wendy Director | SSale | −500.00 | $110.55 | $55.3K | Yes (planned) | Form 4 ↗ |
| 2026-06-23 | 2026-06-22 | POSEY BRUCE K CHIEF LEGAL OFFICER | SSale | −123.00 | $111.73 | $13.7K | Yes (planned) | Form 4 ↗ |
| 2026-06-23 | 2026-06-22 | POSEY BRUCE K, CHIEF LEGAL OFFICER | SSale | −41.00 | $110.48 | $4.53K | Yes (planned) | Form 4 ↗ |
| 2026-06-23 | 2026-06-22 | POSEY BRUCE K, CHIEF LEGAL OFFICER | SSale | −188.00 | $109.84 | $20.6K | Yes (planned) | Form 4 ↗ |
| 2026-06-23 | 2026-06-22 | POSEY BRUCE K, CHIEF LEGAL OFFICER | SSale | −465.00 | $108.80 | $50.6K | Yes (planned) | Form 4 ↗ |
| 2026-06-23 | 2026-06-22 | POSEY BRUCE K, CHIEF LEGAL OFFICER | SSale | −48.00 | $107.40 | $5.16K | Yes (planned) | Form 4 ↗ |
| 2026-06-16 | 2026-06-15 | Thakar Sumedh S CEO & PRESIDENT | SSale | −1.50K | $115.66 | $173K | Yes (planned) | Form 4 ↗ |
| 2026-06-16 | 2026-06-15 | Thakar Sumedh S, CEO & PRESIDENT | SSale | −1.50K | $114.31 | $171K | Yes (planned) | Form 4 ↗ |
| 2026-06-16 | 2026-06-15 | Thakar Sumedh S, CEO & PRESIDENT | SSale | −200.00 | $112.08 | $22.4K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-12 | Berquist Thomas Director | SSale | −939.00 | $110.75 | $104K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-12 | Hank Jeffrey P Director | SSale | −470.00 | $110.75 | $52.1K | No | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | Hank Jeffrey P, Director | SSale | −470.00 | $108.88 | $51.2K | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-10 | Zangardi John A. Director | AAward | +2.63K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-10 | Pfeiffer Wendy Director | AAward | +2.63K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-10 | Brooks Bradford L. Director | AAward | +2.63K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-10 | Rogers Kristi Marie Director | AAward | +2.63K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-10 | Berquist Thomas Director | AAward | +2.63K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-10 | Hank Jeffrey P Director | AAward | +2.63K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-03 | 2026-06-02 | Kim Joo Mi CHIEF FINANCIAL OFFICER | SSale | −419.00 | $113.29 | $47.5K | Yes (planned) | Form 4 ↗ |
| 2026-06-03 | 2026-06-02 | Kim Joo Mi, CHIEF FINANCIAL OFFICER | SSale | −153.00 | $112.05 | $17.1K | Yes (planned) | Form 4 ↗ |
| 2026-06-03 | 2026-06-02 | Kim Joo Mi, CHIEF FINANCIAL OFFICER | SSale | −153.00 | $110.60 | $16.9K | Yes (planned) | Form 4 ↗ |
| 2026-06-03 | 2026-06-02 | Kim Joo Mi, CHIEF FINANCIAL OFFICER | SSale | −306.00 | $109.79 | $33.6K | Yes (planned) | Form 4 ↗ |
| 2026-06-02 | 2026-06-01 | Thakar Sumedh S CEO & PRESIDENT | SSale | −39.00 | $115.57 | $4.51K | Yes (planned) | Form 4 ↗ |
| 2026-06-02 | 2026-06-01 | Thakar Sumedh S, CEO & PRESIDENT | SSale | −10.9K | $114.97 | $1.25M | Yes (planned) | Form 4 ↗ |
| 2026-06-02 | 2026-06-01 | Thakar Sumedh S, CEO & PRESIDENT | SSale | −1.70K | $113.95 | $194K | Yes (planned) | Form 4 ↗ |
| 2026-06-02 | 2026-06-01 | Thakar Sumedh S, CEO & PRESIDENT | SSale | −600.00 | $112.46 | $67.5K | Yes (planned) | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also QLYS’s full analysis or the market-wide insider trading feed. The tabs above jump to QLYS’s other SEC data.
Source: SEC Form 4 filings for QLYS, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
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