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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
1190636	M Steven Krausz	2735 Sand Hill Road Menlo Park CA 94025		Yes	No	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	Disposition	2012-11-30	1,392	$30.18	0	No	4	S	Indirect	Directly owned by EP VIII-A
Common Stock	Disposition	2012-11-30	704	$30.18	0	No	4	S	Indirect	Directly owned by EP VIII-B

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Indirect	Directly owned by EP VIII-A
No	4	S	Indirect	Directly owned by EP VIII-B

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	3,954	Direct

Reported Derivative Holdings

Sec. Name	Sec. Type	Price	Date	Expiration Date	Amount	Remaning Holdings	Nature of Ownership
Common Stock	Stock Option (right to buy)	$27.86		2022-06-06	8,399	8,399	Direct

Expiration Date	Amount	Remaning Holdings	Nature of Ownership
2022-06-06	8,399	8,399	Direct

Footnotes

Steven M. Krausz is a managing member of Presidio Management Group VIII, LLC ("PMG VIII"). PMG VIII is the general partner of US Venture Partners VIII, L.P. ("USVP VIII"), USVP Entrepreneur Partners VIII-A, L.P. ("EP VIII-A"), USVP Entrepreneur Partners VIII-B, L.P. ("EP VIII-B"), and USVP VIII Affiliates Fund, L.P. ("AFF VIII"), and Irwin Federman, Winston S. Fu, David E. Liddle, Paul A Matteucci, Jonathan D. Root, Christopher J. Rust, Casey M. Tansey, and Philip M. Young may be deemed to share voting and dispositive power over the shares held by USVP VIII, EP VIII-A, EP VIII-B and AFF VIII. Such persons and entities disclaim beneficial ownership of shares held by USVP VIII, EP VIII-A, EP VIII-B and AFF VIII except to the extent of any pecuniary interest therein.
This stock option vests as to 100% of the underlying shares 12 months following the vesting commencement date of June 7, 2012. This stock option is subject to accelerated vesting as to 100% of such shares following a change in control of the Issuer.