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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	Director	Officer	Large Shareholder	Other
1115786	Accel Viii Lp	Accel Partners 428 University Avenue Palo Alto CA 94301	No	No	Yes	No
1119932	Accel Internet Fund Iv Lp	Accel Partners 428 University Avenue Palo Alto CA 94301	No	No	Yes	No
1194696	James Breyer	C/O Accel Partners 428 University Avenue Palo Alto CA 94301	No	No	Yes	No
1219233	C Arthur Patterson	C/O Accel Partners 428 University Avenue Palo Alto CA 94301	No	No	Yes	No
1219237	R James Swartz	C/O Accel Partners 428 University Ave Palo Alto CA 94301	No	No	Yes	No
1248474	Accel Investors 2002 Llc	Accel Partners 428 University Avenue Palo Alto CA 94301	No	No	Yes	No
1248538	Accel Viii Associates Llc	C/O Accel Partners 428 University Avenue Palo Alto CA 94301	No	No	Yes	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	2011-11-09	230,141	$18.00	230,141	No	4	P	Direct
Common Stock	Acquisiton	2011-11-09	45,208	$18.00	45,208	No	4	P	Indirect	See footnote
Common Stock	Acquisiton	2011-11-09	19,932	$18.00	19,932	No	4	P	Indirect	See footnote

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	P	Direct
No	4	P	Indirect	See footnote
No	4	P	Indirect	See footnote

Footnotes

The securities are held by Accel VIII L.P. Accel VIII Associates L.L.C. ("A8A") is the General Partner of Accel VIII L.P. and has the sole voting and investment power with respect to the shares. James W. Breyer, Arthur C. Patterson, Theresia Gouw Ranzetta, a director of the Issuer, and James R. Swartz are the Managing Members of and share voting and investment powers in such entities. Each Reporting Person disclaims beneficial ownership of all shares held by the foregoing entities except to the extent of its pecuniary interest therein.
The securities are held by Accel Internet Fund IV L.P. A8A is the General Partner of Accel Internet Fund IV L.P. and has the sole voting and investment power with respect to those entities. James W. Breyer, Arthur C. Patterson, Theresia Gouw Ranzetta, a director of the Issuer, and James R. Swartz are the Managing Members of and share voting and investment
The securities are held by Accel Investors 2002 L.L.C. ("AI2002"). James W. Breyer, Arthur C. Patterson, Theresia Gouw Ranzetta, a director of the Issuer, and James R. Swartz are the Managing Members of and share voting and investment powers in such entities. Each Reporting Person disclaims beneficial ownership of all shares held by the foregoing entities except to the extent of its pecuniary interest therein.