SEC Form 4Coverage since Aug 13, 2025Open-market trades only
$QLYS insider trading
Over the last 12 months, Qualys insiders reported no purchases and 49 sales totaling $23.1M across SEC Form 4 filings. 100% of those filings were made under pre-arranged 10b5-1 trading plans.
- Bought · 12m
- — 0 events
- Sold · 12m
- $23.1M 49 events
- Events · 12m
- 49 Form 4 filings, grouped
- Insiders · 12m
- 6 distinct reporters
- 10b5-1 share
- 100% of events, not dollars
Side
Price · $QLYS · 3Mvia TradingView
Top insiders · 12m
Thakar Sumedh SCEO & PRESIDENT16× · $14.6M
Kim Joo MiCHIEF FINANCIAL OFFICER14× · $6.2M
POSEY BRUCE KCHIEF LEGAL OFFICER12× · $1.7M
Pfeiffer Wendy—4× · $277K
Berquist Thomas—2× · $194K
All insider trades
50 of 59 events
Scroll the table sideways for price, value and marks.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Sep 14, 2026 | Thakar Sumedh SCEO & PRESIDENT · O·D | ▼ Sale | 3,200 | $170.05 | $544K | -1.7% | plan · 10 tranches |
| Sep 2, 2026 | Kim Joo MiCHIEF FINANCIAL OFFICER · O | ▼ Sale | 1,030 | $169.62 | $175K | -1.4% | plan · 5 tranches |
| Sep 2, 2026 | Berquist ThomasD | ▼ Sale | 511 | $175.27 | $90K | -7.5% | plan |
| Aug 20, 2026 | POSEY BRUCE KCHIEF LEGAL OFFICER · O | ▼ Sale | 866 | $184.23 | $160K | -1.4% | plan · 4 tranches |
| Aug 20, 2026 | Pfeiffer WendyD | ▼ Sale | 500 | $185 | $93K | -4.1% | plan |
| Aug 14, 2026 | Thakar Sumedh SCEO & PRESIDENT · O·D | ▼ Sale | 3,200 | $188.97 | $605K | -1.7% | plan · 5 tranches |
| Aug 3, 2026 | Kim Joo MiCHIEF FINANCIAL OFFICER · O | ▼ Sale | 1,627 | $153.04 | $249K | -2.1% | plan · 6 tranches |
| Jul 20, 2026 | POSEY BRUCE KCHIEF LEGAL OFFICER · O | ▼ Sale | 882 | $158.17 | $140K | -1.4% | plan · 4 tranches |
| Jul 20, 2026 | Pfeiffer WendyD | ▼ Sale | 500 | $158.19 | $79K | -3.9% | plan |
| Jul 14, 2026 | Thakar Sumedh SCEO & PRESIDENT · O·D | ▼ Sale | 3,200 | $160.5 | $514K | -1.6% | plan · 8 tranches |
| Jul 6, 2026 | POSEY BRUCE KCHIEF LEGAL OFFICER · O | ▼ Sale | 1,000 | $155 | $155K | -1.5% | plan |
| Jul 2, 2026 | Kim Joo MiCHIEF FINANCIAL OFFICER · O | ▼ Sale | 965 | $143.44 | $138K | -1.2% | plan |
| Jun 30, 2026 | Thakar Sumedh SCEO & PRESIDENT · O·D | ▼ Sale | 30,000 | $135 | $4.0M | -13.2% | plan · 3 tranches |
| Jun 29, 2026 | Thakar Sumedh SCEO & PRESIDENT · O·D | ▼ Sale | 10,000 | $126.75 | $1.3M | -4.2% | plan · 3 tranches |
| Jun 26, 2026 | Thakar Sumedh SCEO & PRESIDENT · O·D | ▼ Sale | 10,000 | $120.48 | $1.2M | -4.1% | plan · 2 tranches |
| Jun 22, 2026 | POSEY BRUCE KCHIEF LEGAL OFFICER · O | ▼ Sale | 865 | $109.44 | $95K | -1.3% | plan · 5 tranches |
| Jun 22, 2026 | Pfeiffer WendyD | ▼ Sale | 500 | $110.55 | $55K | -3.8% | plan |
| Jun 15, 2026 | Thakar Sumedh SCEO & PRESIDENT · O·D | ▼ Sale | 3,200 | $114.8 | $367K | -1.3% | plan · 3 tranches |
| Jun 12, 2026 | Berquist ThomasD | ▼ Sale | 939 | $110.75 | $104K | -12.2% | plan |
| Jun 12, 2026 | Hank Jeffrey PD | ▼ Sale | 940 | $109.82 | $103K | -5.7% | plan · 2 tranches |
| Jun 2, 2026 | Kim Joo MiCHIEF FINANCIAL OFFICER · O | ▼ Sale | 419 | $113.29 | $47K | -0.5% | plan |
| Jun 2, 2026 | Kim Joo MiCHIEF FINANCIAL OFFICER · O | ▼ Sale | 153 | $112.05 | $17K | -0.2% | plan |
| Jun 2, 2026 | Kim Joo MiCHIEF FINANCIAL OFFICER · O | ▼ Sale | 153 | $110.6 | $17K | -0.2% | plan |
| Jun 2, 2026 | Kim Joo MiCHIEF FINANCIAL OFFICER · O | ▼ Sale | 306 | $109.78 | $34K | -0.4% | plan |
| Jun 1, 2026 | Thakar Sumedh SCEO & PRESIDENT · O·D | ▼ Sale | 39 | $115.57 | $5K | — | plan |
| Jun 1, 2026 | Thakar Sumedh SCEO & PRESIDENT · O·D | ▼ Sale | 10,861 | $114.97 | $1.2M | -4.2% | plan |
| Jun 1, 2026 | Thakar Sumedh SCEO & PRESIDENT · O·D | ▼ Sale | 1,700 | $113.95 | $194K | -0.6% | plan |
| Jun 1, 2026 | Thakar Sumedh SCEO & PRESIDENT · O·D | ▼ Sale | 600 | $112.46 | $67K | -0.2% | plan |
| May 22, 2026 | Pfeiffer WendyD | ▼ Sale | 500 | $101.21 | $51K | -4.5% | plan |
| Mar 13, 2026 | POSEY BRUCE KCHIEF LEGAL OFFICER · O | ▼ Sale | 65 | $100.09 | $7K | -0.1% | plan |
| Mar 5, 2026 | POSEY BRUCE KCHIEF LEGAL OFFICER · O | ▼ Sale | 100 | $100.18 | $10K | -0.1% | plan |
| Feb 20, 2026 | POSEY BRUCE KCHIEF LEGAL OFFICER · O | ▼ Sale | 481 | $103.85 | $50K | -0.7% | plan · 3 tranches |
| Feb 4, 2026 | Kim Joo MiCHIEF FINANCIAL OFFICER · O | ▼ Sale | 6,799 | $128.46 | $873K | -7.1% | plan · 5 tranches |
| Feb 2, 2026 | Kim Joo MiCHIEF FINANCIAL OFFICER · O | ▼ Sale | 3,414 | $135.63 | $463K | -3.7% | plan · 3 tranches |
| Jan 20, 2026 | POSEY BRUCE KCHIEF LEGAL OFFICER · O | ▼ Sale | 1,101 | $132.34 | $146K | -1.6% | plan · 4 tranches |
| Jan 14, 2026 | Thakar Sumedh SCEO & PRESIDENT · O·D | ▼ Sale | 5,000 | $133.76 | $669K | -2% | plan · 4 tranches |
| Jan 2, 2026 | Kim Joo MiCHIEF FINANCIAL OFFICER · O | ▼ Sale | 4,753 | $130.77 | $622K | -4.8% | plan · 3 tranches |
| Dec 22, 2025 | POSEY BRUCE KCHIEF LEGAL OFFICER · O | ▼ Sale | 1,077 | $142.46 | $153K | -1.5% | plan · 3 tranches |
| Dec 15, 2025 | Thakar Sumedh SCEO & PRESIDENT · O·D | ▼ Sale | 8,500 | $147.12 | $1.3M | -3.3% | plan · 7 tranches |
| Dec 9, 2025 | Kim Joo MiCHIEF FINANCIAL OFFICER · O | ▼ Sale | 8,649 | $149.81 | $1.3M | -8% | plan · 3 tranches |
| Dec 4, 2025 | POSEY BRUCE KCHIEF LEGAL OFFICER · O | ▼ Sale | 4,077 | $146.98 | $599K | -5.4% | plan · 6 tranches |
| Dec 2, 2025 | Kim Joo MiCHIEF FINANCIAL OFFICER · O | ▼ Sale | 7,506 | $146.59 | $1.1M | -6.5% | plan · 4 tranches |
| Nov 21, 2025 | Kim Joo MiCHIEF FINANCIAL OFFICER · O | ▼ Sale | 7,694 | $141.95 | $1.1M | -6.2% | plan · 7 tranches |
| Nov 14, 2025 | Thakar Sumedh SCEO & PRESIDENT · O·D | ▼ Sale | 8,500 | $142.68 | $1.2M | -3.2% | plan · 4 tranches |
| Nov 12, 2025 | Thakar Sumedh SCEO & PRESIDENT · O·D | ▼ Sale | 2,200 | $155.04 | $341K | -0.8% | plan |
| Oct 20, 2025 | POSEY BRUCE KCHIEF LEGAL OFFICER · O | ▼ Sale | 540 | $127.12 | $69K | -0.9% | plan · 2 tranches |
| Oct 14, 2025 | Thakar Sumedh SCEO & PRESIDENT · O·D | ▼ Sale | 8,500 | $126.82 | $1.1M | -4% | plan · 2 tranches |
| Oct 6, 2025 | Kim Joo MiCHIEF FINANCIAL OFFICER · O | ▼ Sale | 787 | $129.17 | $102K | -0.8% | plan · 2 tranches |
| Sep 22, 2025 | POSEY BRUCE KCHIEF LEGAL OFFICER · O | ▼ Sale | 525 | $136.18 | $71K | -0.9% | plan · 2 tranches |
| Sep 15, 2025 | Thakar Sumedh SCEO & PRESIDENT · O·D | ▼ Sale | 8,500 | $132.49 | $1.1M | -4% | plan · 2 tranches |
Every $QLYS filing on this page is one API call away
The same Form 4 data over REST or MCP, already grouped into events with the plan flag and the dollar value read. A free key does 100 calls a day and needs no card. Prefer email? Qualys filings can reach your inbox instead.
About Form 4
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $QLYS feed.