X0306 4 2016-10-17 0 0001364962 IMPERVA INC IMPV 0001533440 Shulman Amichai C/O IMPERVA, INC. 3400 BRIDGE PARKWAY, SUITE 200 REDWOOD SHORES CA 94065 0 1 0 0 Chief Technology Officer Common Stock 2016-10-17 4 S 0 3085 48.57 D 91062 D Common Stock 18765 I See Footnote This transaction was effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person. Represents a weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from $48.05 to $48.98. The reporting person has provided to the Issuer, and undertakes to provide to the staff of the Securities and Exchange Commission or any security holder of the Issuer, upon request, full information regarding the number of shares sold at each separate price within the range. The shares are owned of record by Amichai Shulman Holdings 2000 Ltd. The Reporting Person is a director and beneficial owner of the shares held by such entity. /s/ Shulamite White, Attorney-in-Fact 2016-10-18