Sumedh S. Thakar - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 3, 2026
Sumedh S. Thakar has filed 6 SEC Form 4 filings across 1 company in the last 90 days - selling. Lifetime open-market sales: $26.87M.
Profile
Sumedh S. Thakar is a corporate insider at QUALYS, INC. (QLYS). Thakar has reported 32 insider filings with the SEC since 2024. The most recent filing was in July 2026.
| Role | CEO & PRESIDENT |
|---|---|
| Notability | 25/100 |
Board memberships
- QUALYS, INC.
Awards & honors
- Led Qualys through its IPO
- Expanded service offerings in cloud security
- Increased customer base to over 10,000
Trading Pattern
InsiderAlpha's records for Sumedh S. Thakar go back to 2024: 32 primary Form 4 filings, an average of 10.7 per year. 66 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Career & Filing History
Every role Sumedh S. Thakar has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- CEO & PRESIDENT at QUALYS, INC. (QLYS) - 21 filings, 2024 to 2026
- CEO PRESIDENT at QUALYS, INC. (QLYS) - 11 filings, 2025
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-15 | QLYS | QUALYS, INC. | S - Open-market sale [10b5-1] | 200 | $163.56 | $33K |
| 2026-07-15 | QLYS | QUALYS, INC. | S - Open-market sale [10b5-1] | 200 | $162.40 | $32K |
| 2026-07-15 | QLYS | QUALYS, INC. | S - Open-market sale [10b5-1] | 1.6K | $161.69 | $254K |
| 2026-07-15 | QLYS | QUALYS, INC. | S - Open-market sale [10b5-1] | 730 | $160.81 | $117K |
| 2026-07-15 | QLYS | QUALYS, INC. | S - Open-market sale [10b5-1] | 200 | $157.75 | $32K |
| 2026-07-15 | QLYS | QUALYS, INC. | S - Open-market sale [10b5-1] | 100 | $155.30 | $16K |
| 2026-07-15 | QLYS | QUALYS, INC. | S - Open-market sale [10b5-1] | 100 | $151.53 | $15K |
| 2026-07-15 | QLYS | QUALYS, INC. | S - Open-market sale [10b5-1] | 100 | $149.30 | $15K |
| 2026-07-02 | QLYS | QUALYS, INC. | S - Open-market sale [10b5-1] | 10.0K | $140.00 | $1.40M |
| 2026-07-02 | QLYS | QUALYS, INC. | S - Open-market sale [10b5-1] | 10.0K | $135.00 | $1.35M |
| 2026-07-02 | QLYS | QUALYS, INC. | S - Open-market sale [10b5-1] | 10.0K | $130.00 | $1.30M |
| 2026-06-30 | QLYS | QUALYS, INC. | S - Open-market sale [10b5-1] | 2.3K | $127.66 | $294K |
| 2026-06-30 | QLYS | QUALYS, INC. | S - Open-market sale [10b5-1] | 5.0K | $126.96 | $634K |
| 2026-06-30 | QLYS | QUALYS, INC. | S - Open-market sale [10b5-1] | 2.7K | $125.60 | $339K |
| 2026-06-29 | QLYS | QUALYS, INC. | S - Open-market sale [10b5-1] | 200 | $121.10 | $24K |
| 2026-06-29 | QLYS | QUALYS, INC. | S - Open-market sale [10b5-1] | 9.8K | $120.47 | $1.18M |
| 2026-06-16 | QLYS | QUALYS, INC. | S - Open-market sale [10b5-1] | 1.5K | $115.66 | $173K |
| 2026-06-16 | QLYS | QUALYS, INC. | S - Open-market sale [10b5-1] | 1.5K | $114.31 | $171K |
| 2026-06-16 | QLYS | QUALYS, INC. | S - Open-market sale [10b5-1] | 200 | $112.08 | $22K |
| 2026-06-02 | QLYS | QUALYS, INC. | S - Open-market sale [10b5-1] | 39 | $115.57 | $5K |
Companies - Last 90 Days
- QUALYS, INC. (QLYS) - 6 filings, last 2026-07-15
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades at the companies Sumedh S. Thakar has recently filed at. Multiple unrelated insiders buying the same stock within a short window - cluster buying - has historically been one of the strongest Form 4 signals.
- Joo Mi Kim - $4.30M of QLYS open-market activity in the last 12 months
- Bruce K. Posey - $1.74M of QLYS open-market activity in the last 12 months
- John A. Zangardi - $1.11M of QLYS open-market activity in the last 12 months
- Kristi Marie Rogers - $229K of QLYS open-market activity in the last 12 months
- Wendy Pfeiffer - $211K of QLYS open-market activity in the last 12 months
- Thomas Berquist - $172K of QLYS open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- SUMITOMO MITSUI FINANCIAL GROUP, INC.
- Suva
- SUVRETTA CAPITAL MANAGEMENT, LLC
- Donald William Swanson
- Synchron
- Kevin Tang
- Leonard M. Tannenbaum
- TCG Crossover GP II, LLC
Frequently Asked Questions
Who is Sumedh S. Thakar?
Sumedh S. Thakar is a corporate insider at QUALYS, INC. (QLYS). Thakar has reported 32 insider filings with the SEC since 2024. The most recent filing was in July 2026.…
How many SEC Form 4 filings has Sumedh S. Thakar submitted recently?
6 primary Form 4 filings in the last 90 days, covering 1 company.
Has Sumedh S. Thakar been buying or selling stock?
Recorded transactions: 0 open-market purchases and 76 open-market sales ($26.87M) across all tracked filings.
Where can I see all of Sumedh S. Thakar's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Open the live Sumedh S. Thakar profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.