QUALYS, INC. — Director's Dealing 2017

May 2, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: QUALYS, INC. (QLYS)
CIK: 0001107843
Period of Report: 2017-04-28

Reporting Person: Deeba Amer (VP Corp Dev & Strat Alliances)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-04-28	Common Stock	A	21515	$0.00	Acquired	79353	Direct
2017-05-01	Common Stock	M	2000	$2.80	Acquired	81353	Direct
2017-05-01	Common Stock	S	2000	$38.6072	Disposed	79353	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-05-01	Stock Option (right to buy)	$2.80	M	2000	Disposed	2019-07-30	Common Stock (2000)	Direct

Footnotes

F1: The reported securities represent restricted stock units ("RSUs") which vest quarterly in installments of approximately 8.23% of the total number of RSUs over the year after May 1, 2017, and in installments of approximately 5.59% of the total number of RSUs over the three years after May 1, 2018, subject to the Reporting Person's continued service through each vesting date.

F2: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 27, 2016.

F3: The sale price represents the weighted average price of the shares sold ranging from $38.30 to $38.95 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 option is fully vested and immediately exercisable.