What SEC filings does Qualys, Inc. submit to the SEC?

Qualys, Inc. (QLYS) submits several types of SEC filings including Form 4 (insider transactions), Form 144 (proposed insider sales), 8-K reports (material events such as earnings releases, acquisitions, leadership changes), and periodic reports — the 10-Q (quarterly) and 10-K (annual). All filings are publicly available through SEC EDGAR.

What does a Form 4 filing tell me about QLYS?

A Form 4 for QLYS discloses a transaction by a company insider — typically a director, officer, or 10%+ shareholder. It shows the source-reported date, number of shares, price, and updated ownership. These facts do not establish motive or predict future returns.

How do I interpret an 8-K filing from Qualys, Inc.?

An 8-K signals a material event requiring prompt disclosure. Common triggers include earnings pre-announcements, acquisitions, leadership appointments or departures, credit changes, or regulatory actions. Read the item codes inside the filing to understand exactly what was disclosed before drawing conclusions.

What is the difference between a 10-K and 10-Q for QLYS?

The 10-K is Qualys, Inc.'s annual report with fully audited financial statements, comprehensive MD&A, and complete risk factor disclosures — filed 60–90 days after fiscal year-end. The 10-Q is a lighter quarterly report with unaudited financials filed for the first three quarters. Together they provide a continuous financial picture of the company.

Where can I see all QLYS SEC filings directly on EDGAR?

You can view all historical Qualys, Inc. filings on the SEC EDGAR company page for QLYS. Each filing card on this page links directly to the original SEC document.

How often does Qualys, Inc. file with the SEC?

Qualys, Inc. files one 10-K per year and up to three 10-Qs per year. Form 4 insider transactions must be reported within two business days of each trade, so the frequency depends on how often insiders are buying or selling QLYS shares. 8-K filings occur whenever a material event happens — which can be several times per quarter for an active company.

QLYS SEC Filing News — Qualys, Inc.

Latest SEC filings for Qualys, Inc. (QLYS) explained in plain English. Covers insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). StrongBuyAnalytics provides navigation and brief excerpts or summaries; original filings remain at the SEC/source links and were authored by their filers, not StrongBuyAnalytics. Filing dates shown are source dates. Coverage and detection can be delayed or incomplete because of SEC availability, amendments, parsing, caching, or outages. Latest source filing date shown: 2026-09-22.

Qualys, Inc. provides cloud-based platform delivering information technology (IT), security, and compliance solutions in the United States and internationally. The company provides Qualys Cloud Apps, which include cybersecurity asset management; enterprise TruRisk management; vulnerability management, detection, and response; total application security; patch management; custom assessment and remediation; multi-vector endpoint detection and response; policy audit; and file integrity monitoring. …

Sector: Technology Industry: Software - Infrastructure Market Cap: $6.3B CIK: 1107843

Total Filings

Bullish Classifications

Bearish Classifications

Insider Transactions

Material Events (8-K)

Periodic Reports

Rule-based classifications for QLYS currently lean bearish. Of the 12 filing records displayed, 8 carry bearish classifications (such as insider sales or negative 8-K disclosures) versus 0 bullish. This does not necessarily signal fundamental deterioration — insiders sell for many reasons — but it is worth monitoring alongside the company's core financial metrics.

QLYS Filing Activity Snapshot 2026-08-03 — 2026-09-22

Insider Transactions (Form 4)

0 buys vs 8 sells

Net insider selling in this period — insiders sell for many reasons beyond conviction.

Largest Form 144 Filing

$604.7K

Thakar Sumedh S (Director, CEO & PRESIDENT) · 2026-08-17

3,200 shares · Form 4

Form 144 Notices

Proposed insider sale filed — Form 144 is a notice of intent, not a confirmed transaction. Actual sales are confirmed via Form 4.

Insider Transactions 9 · Forms 3, 4 and 5

A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 9 filings in this group are Form 4s for Qualys, Inc.

The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.

Across the 9 insider filings shown, the breakdown is 8 open-market sale and 1 tax withholding. 8 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.

What each transaction type means

Open-market sale ×8: The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Tax withholding ×1: Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.

Form 4 Open-market sale Insider Selling 2026-09-22

QLYS insider POSEY BRUCE K (CHIEF LEGAL OFFICER) sold 866 shares (~$155.4K)

POSEY BRUCE K, listed as CHIEF LEGAL OFFICER at QUALYS, INC., reported an open-market sale of 866 QLYS shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	72	$175.54	$12.6K
`S`	Open-market sale	27	$177.98	$4.8K
`S`	Open-market sale	241	$178.96	$43.1K
`S`	Open-market sale	327	$179.95	$58.8K
`S`	Open-market sale	199	$181.03	$36.0K

Filing: Form 4 (Insider Transaction) Insider: POSEY BRUCE K (CHIEF LEGAL OFFICER) Shares: 866 Est. Value: $155.4K

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-09-15

QLYS insider Thakar Sumedh S (Director, CEO & PRESIDENT) sold 3,200 shares (~$544.2K)

Thakar Sumedh S, listed as Director, CEO & PRESIDENT at QUALYS, INC., reported an open-market sale of 3,200 QLYS shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	100	$154.39	$15.4K
`S`	Open-market sale	200	$159.28	$31.9K
`S`	Open-market sale	300	$162.43	$48.7K
`S`	Open-market sale	100	$165.94	$16.6K
`S`	Open-market sale	100	$167.58	$16.8K
`S`	Open-market sale	200	$169.34	$33.9K
`S`	Open-market sale	100	$170.90	$17.1K
`S`	Open-market sale	1,500	$172.92	$259.4K
`S`	Open-market sale	500	$173.92	$87.0K
`S`	Open-market sale	100	$174.71	$17.5K

Filing: Form 4 (Insider Transaction) Insider: Thakar Sumedh S (Director, CEO & PRESIDENT) Shares: 3,200 Est. Value: $544.2K

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-09-03

QLYS insider Berquist Thomas (Director) sold 511 shares (~$89.6K)

Berquist Thomas, listed as Director at QUALYS, INC., reported an open-market sale of 511 QLYS shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	511	$175.27	$89.6K

Filing: Form 4 (Insider Transaction) Insider: Berquist Thomas (Director) Shares: 511 Est. Value: $89.6K

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-09-03

QLYS insider Kim Joo Mi (CHIEF FINANCIAL OFFICER) sold 1,030 shares (~$174.7K)

Kim Joo Mi, listed as CHIEF FINANCIAL OFFICER at QUALYS, INC., reported an open-market sale of 1,030 QLYS shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	293	$167.49	$49.1K
`S`	Open-market sale	166	$168.75	$28.0K
`S`	Open-market sale	204	$170.05	$34.7K
`S`	Open-market sale	265	$171.14	$45.4K
`S`	Open-market sale	102	$172.37	$17.6K

Filing: Form 4 (Insider Transaction) Insider: Kim Joo Mi (CHIEF FINANCIAL OFFICER) Shares: 1,030 Est. Value: $174.7K

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-08-21

QLYS insider POSEY BRUCE K (CHIEF LEGAL OFFICER) sold 866 shares (~$159.5K)

POSEY BRUCE K, listed as CHIEF LEGAL OFFICER at QUALYS, INC., reported an open-market sale of 866 QLYS shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	97	$181.99	$17.7K
`S`	Open-market sale	393	$183.58	$72.1K
`S`	Open-market sale	96	$184.25	$17.7K
`S`	Open-market sale	280	$185.91	$52.1K

Filing: Form 4 (Insider Transaction) Insider: POSEY BRUCE K (CHIEF LEGAL OFFICER) Shares: 866 Est. Value: $159.5K

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-08-21

QLYS insider Pfeiffer Wendy (Director) sold 500 shares (~$92.5K)

Pfeiffer Wendy, listed as Director at QUALYS, INC., reported an open-market sale of 500 QLYS shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	500	$185.00	$92.5K

Filing: Form 4 (Insider Transaction) Insider: Pfeiffer Wendy (Director) Shares: 500 Est. Value: $92.5K

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-08-17

QLYS insider Thakar Sumedh S (Director, CEO & PRESIDENT) sold 3,200 shares (~$604.7K)

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	406	$186.28	$75.6K
`S`	Open-market sale	794	$188.07	$149.3K
`S`	Open-market sale	1,300	$189.41	$246.2K
`S`	Open-market sale	600	$190.49	$114.3K
`S`	Open-market sale	100	$192.27	$19.2K

Filing: Form 4 (Insider Transaction) Insider: Thakar Sumedh S (Director, CEO & PRESIDENT) Shares: 3,200 Est. Value: $604.7K

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-08-04

QLYS insider Kim Joo Mi (CHIEF FINANCIAL OFFICER) sold 1,627 shares (~$249.0K)

Kim Joo Mi, listed as CHIEF FINANCIAL OFFICER at QUALYS, INC., reported an open-market sale of 1,627 QLYS shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	100	$147.22	$14.7K
`S`	Open-market sale	100	$148.54	$14.9K
`S`	Open-market sale	200	$151.47	$30.3K
`S`	Open-market sale	300	$152.78	$45.8K
`S`	Open-market sale	827	$154.51	$127.8K
`S`	Open-market sale	100	$155.12	$15.5K

Filing: Form 4 (Insider Transaction) Insider: Kim Joo Mi (CHIEF FINANCIAL OFFICER) Shares: 1,627 Est. Value: $249.0K

View on SEC EDGAR → Open Filing Document →

Form 4 Tax withholding Tax / Compensation Filing 2026-08-03

QLYS insider Form 4 filed for equity award, exercise, or tax withholding

Kim Joo Mi (CHIEF FINANCIAL OFFICER) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`F`	Tax withholding on vested shares	3,845	$144.75	$556.6K

Filing: Form 4 (Insider Transaction) Insider: Kim Joo Mi (CHIEF FINANCIAL OFFICER) Shares: 3,845

View on SEC EDGAR → Open Filing Document →

Proposed Insider Sales 1 · Form 144

A Form 144 is a notice of intent to sell restricted or control securities. It is not a record that anything was sold. Qualys, Inc. has 1 such notice in this period.

The distinction matters because a Form 144 is frequently reported as though it were a completed insider sale. The filer may sell all of the shares covered, some of them, or none at all, and there is no obligation to update the notice either way. A sale that is actually executed by an officer or director shows up separately on a Form 4, which is the filing to check before treating a proposed sale as a real one.

Form 144 Proposed Insider Sale 2026-08-20

QLYS Form 144 filed for proposed insider sale by BRUCE POSEY (2,613 shares) ~$487.8K

BRUCE POSEY filed a Form 144 with the SEC indicating intent to sell QLYS (QUALYS, INC.) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: BRUCE POSEY Shares: 2,613 Est. Value: $487.8K

View on SEC EDGAR → Open Filing Document →

Material Events 1 · Form 8-K

An 8-K reports a material event in the window between scheduled reports. There is 1 in this period for Qualys, Inc. Each 8-K names the item number it is filed under, and that number is the fastest way to tell a routine disclosure from a consequential one.

Item 2.02 is an earnings release, Item 5.02 is a change of directors or officers, and Item 1.01 or 2.01 covers a material agreement or a completed acquisition. Item 7.01 and Item 8.01 are the general-purpose disclosure items and carry no fixed meaning on their own.

Form 8-K Material Company Update 2026-08-04

QLYS filed 8-K — material company event

QUALYS, INC. filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Periodic Reports 1 · Forms 10-K and 10-Q

The periodic reports are where the audited and reviewed financial statements live. This period contains 1 quarterly report (10-Q) for Qualys, Inc.

The two are not equivalent in weight. A 10-K is audited by an external firm and includes the full risk factor disclosure, business description and management discussion; a 10-Q is unaudited, reviewed rather than examined, and much shorter. When a figure in a quarterly report is later revised, the annual report is usually where the correction appears.

An amended report — 10-K/A or 10-Q/A — restates or corrects something in the original filing, and is worth reading against the version it replaces.

Form 10-Q Quarterly Report 2026-08-04

QLYS filed Quarterly Report (10-Q)

QUALYS, INC. filed its quarterly report with the SEC. This report includes unaudited financial statements and management discussion for the quarter.

Filing: 10-Q (Quarterly Report)

View on SEC EDGAR → Open Filing Document →

How we classify Qualys, Inc.'s filings

Straight from EDGAR

Each displayed record links to an original source document. StrongBuyAnalytics provides navigation and brief excerpts or summaries, not the filing itself. Parsing may omit context or contain errors, so read the original document in full.

Transaction codes, not guesswork

The nature shown on each insider filing comes from the transaction code the filer entered on the form itself — P for an open-market purchase, A for a compensation award, F for shares withheld to pay tax, M for an option exercise. Where one filing contains several codes, the transaction table lists them line by line.

Why the distinction matters

Insider activity is routinely summarised as buying or selling, which flattens together decisions that mean very different things. Shares withheld for tax on a vesting grant are an automatic administrative step; shares bought on the open market are someone committing their own money at the current price.

What this page does not tell you

A filing records what happened, not why. Form 4 does not always disclose whether a sale was executed under a pre-arranged Rule 10b5-1 plan, and no single filing is a basis for a decision on QLYS. Read these alongside the fundamentals rather than in isolation.

Frequently Asked Questions — QLYS SEC Filings

More Tools for QLYS

QLYS Full Stock Analysis QLYS Live Chart Institutional Ownership Earnings Calendar Options Flow Scanner Semiconductor Demand Zone Tracker Sector Scanner Browse All Stocks

Want deeper QLYS analysis?

View valuation, growth metrics, the rule-based stock-page score, demand zones, peer comparison, and more — all on the QLYS stock analysis page.

QLYS Full Analysis

Publisher, sources & limitations — September 15, 2026. StrongBuyAnalytics provides navigation and brief excerpts or summaries for educational use. Original filings remain at SEC EDGAR or other displayed source links; StrongBuyAnalytics does not author them. Filing dates are source dates, not publication dates for this page. Coverage can be delayed, incomplete, amended, or unavailable because of SEC/source availability, parsing, caching, or outages. Verify every material statement in the original filing.

Data Sources · Methodology · AI Disclosure · Corrections Policy · Disclaimer