QUALYS, INC. — Director's Dealing 2025

Dec 17, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: QUALYS, INC. (QLYS)
CIK: 0001107843
Period of Report: 2025-12-15

Reporting Person: Thakar Sumedh S (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-12-15	Common Stock	M	6500	$25.56	Acquired	261300	Direct
2025-12-15	Common Stock	S	2600	$145.4927	Disposed	258700	Direct
2025-12-15	Common Stock	S	2100	$146.3312	Disposed	256600	Direct
2025-12-15	Common Stock	S	1400	$147.1641	Disposed	255200	Direct
2025-12-15	Common Stock	S	1243	$148.3272	Disposed	253957	Direct
2025-12-15	Common Stock	S	357	$149.5408	Disposed	253600	Direct
2025-12-15	Common Stock	S	200	$150.105	Disposed	253400	Direct
2025-12-15	Common Stock	S	600	$151.9443	Disposed	252800	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-12-15	Stock Option (right to buy)	$25.56	M	6500	Disposed	2026-04-28	Common Stock (6500)	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 26, 2025.

F2: The sale price represents the weighted average price of the shares sold ranging from $144.99 to $145.97 per share. Upon request by the Commission staff, the Issuer or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

F3: The sale price represents the weighted average price of the shares sold ranging from $146.01 to $146.99 per share. Upon request by the Commission staff, the Issuer or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

F4: The sale price represents the weighted average price of the shares sold ranging from $147.02 to $147.48 per share. Upon request by the Commission staff, the Issuer or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

F5: The sale price represents the weighted average price of the shares sold ranging from $148.04 to $149.00 per share. Upon request by the Commission staff, the Issuer or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

F6: The sale price represents the weighted average price of the shares sold ranging from $149.07 to $150.05 per share. Upon request by the Commission staff, the Issuer or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

F7: The sale price represents the weighted average price of the shares sold ranging from $150.10 to $150.11 per share. Upon request by the Commission staff, the Issuer or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

F8: The sale price represents the weighted average price of the shares sold ranging from $151.19 to $152.05 per share. Upon request by the Commission staff, the Issuer or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

F9: The option is fully vested and immediately exercisable.