X0306 4 2016-01-04 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 2016-01-04 4 M 0 1875 32.79 A 88615 D Common Stock 2016-01-04 4 M 0 937 34.55 A 89552 D Common Stock 2016-01-04 4 S 0 700 59.54 D 88852 D Common Stock 2016-01-04 4 S 0 1822 60.52 D 87030 D Common Stock 2016-01-04 4 S 0 290 61.55 D 86740 D Common Stock 2016-01-04 4 S 0 800 59.57 D 32965 I See Footnote Common Stock 2016-01-04 4 S 0 1900 60.50 D 31065 I See Footnote Common Stock 2016-01-04 4 S 0 300 61.46 D 30765 I See Footnote Employee Stock Option (right to buy) 32.79 2016-01-04 4 M 0 1875 0.00 D 2022-02-07 Common Stock 1875 0 D Employee Stock Option (right to buy) 34.55 2016-01-04 4 M 0 937 0.00 D 2023-02-04 Common Stock 937 3750 D This transaction was effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person. Represents a weighted average sales price per share. These shares were sold in multiple transactions at prices ranging from $59.15 to $60.00. 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. Represents a weighted average sales price per share. These shares were sold in multiple transactions at prices ranging from $60.23 to $61.23. 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. Represents a weighted average sales price per share. These shares were sold in multiple transactions at prices ranging from $61.44 to $61.69. 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. Represents a weighted average sales price per share. These shares were sold in multiple transactions at prices ranging from $59.19 to $60.17. 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. Represents a weighted average sales price per share. These shares were sold in multiple transactions at prices ranging from $60.23 to $61.18. 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. Represents a weighted average sales price per share. These shares were sold in multiple transactions at prices ranging from $61.39 to $61.49. 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. This Stock Option vests over four years of continuous service as follows: 25% of the underlying shares vest one year following the vesting commencement date of January 1, 2012, with the remaining 75% vesting in equal quarterly installments over the next three years. This Stock Option is subject to accelerated vesting in the event of a termination of employment of the Reporting Person under certain circumstances following a change in control of the Issuer. This Stock Option vests over four years of continuous service as follows: 25% of the underlying shares vest one year following the vesting commencement date of January 1, 2013, with the remaining 75% vesting in equal quarterly installments over the next three years. This Stock Option is subject to accelerated vesting in the event of a termination of employment of the Reporting Person under certain circumstances following a change in control of the Issuer. /s/ Tram Phi, Attorney-in-Fact 2016-01-05