Net Loss per Share (Tables)

12 Months Ended

Dec. 31, 2016

Computation of Company's Basic and Diluted Net Loss Per Share of Common Stock

The following table sets forth the computation of the Company’s basic and diluted net loss per share of common stock (in thousands, except per share amounts):

	Years Ended December 31,
	2016			2015			2014
Net loss attributable to Imperva, Inc. stockholders	$	(70,279	)	$	(48,882	)	$	(58,963	)
Shares used in computing net loss per share of common stock, basic and diluted		32,284			29,849			25,806
Net loss per share of common stock, basic and diluted	$	(2.18	)	$	(1.64	)	$	(2.28	)

Antidilutive Securities Excluded from Computation of Diluted Net Loss Per Share of Common Stock

The following outstanding shares of common stock equivalents were excluded from the computation of diluted net loss per share of common stock for the periods presented because including them would have been antidilutive:

	Years Ended December 31,
	2016		2015		2014
Stock options to purchase common stock		1,570,765		1,949,089		2,244,363
Restricted stock units for common stock		1,994,790		1,898,025		2,279,081
Restricted shares of common stock subject to repurchase		-		-		217,621
Restricted stock issued in connection with Skyfence acquisition		110,897		118,961		355,499