Transactions
3
Insider / QUALYS, INC.
Berquist Thomas
Director at QUALYS, INC.
- Company
- QUALYS, INC.
- Ticker
- QLYS
- First filing on record
- June 11, 2026
- Latest trade on record
- September 2, 2026
- SEC filings
- EDGAR ↗
Berquist Thomas, Director at QUALYS, INC., has disclosed 3 transactions in QLYS since June 11, 2026: 0 purchases (0 open-market buys) and 2 sales, worth about $194K at the reported prices. The latest was filed September 3, 2026, 1 day after the trade.
Open-market buys
0
Sales
2
Avg. disclosure lag
1.7d
Trading in charts
Trade timeline
When does this person trade, how big, and in which direction? Every trade in the last 12 months.
Bought (above the line)Sold (below the line)Other transaction
In the last 12 months Berquist Thomas made no purchases and 2 sales worth $194K, plus 1 other transaction. Dot size is the dollar amount.
Portfolio mix
Which stocks does this person trade most? Tile size is dollars traded, all time on record.
Berquist Thomas has traded 1 stock on record; the largest by dollars is QLYS.
Reporting lag
Does this person report on time? One bar per filing against the Form 4 deadline.
On timeLate
0 of 3 filings on record were reported after the Form 4 deadline (two business days, counted here as 4 calendar days).
What kind of transactions
Most Form 4 rows are pay arriving or tax being withheld, not a decision to buy or sell. Only code P is an open-market purchase and code S an open-market sale. What each code means: Form 4 transaction codes.
| Code | Meaning | Rows | Shares | Value |
|---|---|---|---|---|
| S | Open-market sale | 2 | 1,450 | $194K |
| A | Grant or award | 1 | 2,628 | — |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2026 | 3 | 0 | 2 · $194K |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| QLYS | Sell S | September 2, 2026 | September 3, 2026 | 1d | 511 | $175 | $90K | 10b5-1 plan | Form 4 ↗ | |
| QLYS | Sell S | June 12, 2026 | June 15, 2026 | 3d | 939 | $111 | $104K | 10b5-1 plan | Form 4 ↗ | |
| QLYS | Other A | June 10, 2026 | June 11, 2026 | 1d | 2,628 | — | — | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| September 3, 2026 | Form 4 | 0001433254-26-000006 | 1 | published | EDGAR ↗ |
| June 15, 2026 | Form 4 | 0001433254-26-000004 | 1 | published | EDGAR ↗ |
| June 11, 2026 | Form 4 | 0001433254-26-000002 | 1 | published | EDGAR ↗ |
Other insiders at QUALYS, INC.
- Thakar Sumedh S CEO & PRESIDENT 80 rows
- POSEY BRUCE K CHIEF LEGAL OFFICER 62 rows
- Kim Joo Mi CHIEF FINANCIAL OFFICER 57 rows
- Pfeiffer Wendy Director 5 rows
- Hank Jeffrey P Director 3 rows
- Brooks Bradford L. Director 2 rows
- Rogers Kristi Marie Director 1 row
- Zangardi John A. Director 1 row
Everyone on file, with contracts and lobbying under the company's name: QUALYS, INC..
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- Rule 10b5-1 trading plans The plan must be set up when the insider has no important non-public information.
- What disclosure data cannot tell you Filings are late by design: up to 45 days for Congress, two business days for insiders.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| SEC EDGAR, Form 4 | 3 | 3 | June 11, 2026 | September 3, 2026 | Form 4 list on EDGAR |
Site built October 27, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Every row comes from the reporting owner's Form 4 as filed with the SEC (EDGAR ownership XML), read daily. "Value" is shares × the reported price; code P is an open-market purchase, S a sale, M an option exercise, A a grant. The lag is the filing date minus the trade date; Form 4 is due within two business days. Amendments (4/A) are not merged. Details on the methodology page; report an error on corrections.
Not investment advice. Figures are public disclosures shown as filed; they may lag the trade and may be amended later. No recommendation is made or implied.