QUALYS, INC.

Under Sections 280G and 4999 of the Code, certain service providers, which may include our named executive officers, may be subject to an excise tax if they receive payments or benefits in connection with a change in control of the Company that exceeds certain prescribed limits, and the Company may forfeit a deduction on the amounts subject to this excise tax. Also, Section 409A of the Code imposes significant additional taxes on a service provider in the event the service provider receives “deferred compensation” that does not meet the requirements of Section 409A of the Code.

In 2025, we did not provide any of our named executive officers with a “gross-up” or other reimbursement payment for any excise tax liability that he or she might owe as a result of the application of Sections 280G or 4999 or for any additional tax that he or she might owe as a result of the application of Section 409A. We have not agreed and are not otherwise obligated to provide any named executive officer with such a “gross-up” or other reimbursement.