X0306 4 2016-02-04 0 0001107843 QUALYS, INC. QLYS 0001392155 Headley Todd P C/O QUALYS, INC. 1600 BRIDGE PARKWAY REDWOOD CITY CA 94065 1 0 0 0 Common Stock 2016-02-04 4 A 0 14142 0.00 A 14142 D The reported securities represent restricted stock units which vest in three (3) equal annual installments on each of the first three (3) anniversaries of March 1, 2016, subject to the Reporting Person's continued service through each vesting date. /s/ Bruce Posey, by power of attorney for Todd P. Headley 2016-02-05