Changes in Beneficial Ownership · 4
Qualys, Inc.
QLYSNASDAQEQUITYCurrent
Changes in Beneficial Ownership
Structured filing — 4
form4-08212026_080829.xml
Filing details
- Report period
- 2026-08-20
- Issuer
- QUALYS, INC.
- Issuer CIK
- 0001107843
- Trading symbol
- QLYS
- Rule 10b5-1 indication
- Checked
Reporting owner 1
- Name
- Pfeiffer Wendy
- Reporting owner CIK
- 0001786612
- Relationship
- Director
- Address
- C/O QUALYS, INC., 919 E. HILLSDALE BLVD., FOSTER CITY, CA, 94404
Non-derivative transactions
| Security | Transaction date | Code | Amount | A / D | Price (USD) | Owned after | Ownership |
|---|---|---|---|---|---|---|---|
| Common Stock | 2026-08-20 | S · Form 4[F1] | 500 | D | 185 | 11,710 | D |
Table key
- S · Form 4
- Sale on the market or privately
- D
- Direct
Footnotes
- F1
- The sale transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 20, 2026.↩ 1
Signature 1
- Signed
- /s/ Bruce Posey, by power of attorney
- Date
- 2026-08-21
Company context
Qualys, Inc. (NASDAQ: QLYS) is a leader in cloud-native cyber risk management, helping organizations measure, communicate, and eliminate cyber risk. The Qualys platform and its solutions power the Risk Operations Center (ROC), unifying asset visibility, exposure management, risk prioritization, and remediation to help organizations continuously reduce risk across hybrid, multi-cloud, endpoint, and AI environments. Qualys equips security and IT teams for the Frontier AI Era with AI-speed detection, hyper-prioritization, and autonomous remediation. Trusted by more than 10,000 organizations globally, including most of the Fortune 100, Qualys helps customers transform cybersecurity into a measurable business function that strengthens resilience and drives business outcomes. For more information, please visit www.qualys.com.