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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1364962	Imperva Inc	IMPV	Services-Prepackaged Software (7372)	030460133

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1533441	K. Prashant Karnik	C/O Imperva, Inc. 3400 Bridge Parkway, Suite 200 Redwood Shores CA 94065	Senior Vp, Ww Client Services	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2012-10-19	2,500	$5.42	2,500	No	4	M	Direct
Common Stock	Disposition	2012-10-19	2,500	$31.29	0	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Employee Stock Option (right to buy)	Disposition	2012-10-19	2,500	$0.00	2,500	$5.42

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
92,500		2021-03-02	No	4	M	Direct

Footnotes

This transaction was effected pursuant to a 10b5-1 plan adopted by the Reporting Person.
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 Februrary 28, 2011 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.