QUALYS, INC. — Director's Dealing 2017

May 10, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: QUALYS, INC. (QLYS)
CIK: 0001107843
Period of Report: 2017-05-09

Reporting Person: Thakar Sumedh S (Chief Product Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-05-09	Common Stock	M	1800	$8.40	Acquired	140950	Direct
2017-05-09	Common Stock	S	4119	$40.8669	Disposed	136831	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-05-09	Stock Option (right to buy)	$8.40	M	1800	Disposed	2022-04-29	Common Stock (1800)	Direct

Footnotes

F1: The sale transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 27, 2016.

F2: The sale price represents the weighted average price of the shares sold ranging from $40.75 to $41.075 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 option is subject to an early exercise provision and was immediately exercisable. One forty-eighth of the shares subject to the option vested on May 30, 2012 and one forty-eighth of the shares subject to the option vested monthly thereafter.