Net Loss Per Share (Tables)

9 Months Ended

Sep. 30, 2015

Net Loss Per Share

Potentially dilutive shares not included in the calculation of dilutive EPS

	Three months ended		Nine months ended
	September 30,		September 30,
	2015	2014	2015	2014
	(in thousands)
Options to purchase common stock	9,399	4,270	9,399	7,968
Warrants	410	401	410	401
Common stock subject to repurchase	1,403	440	1,403	1,758
Convertible preferred stock	—	—	—	27,048
	11,212	5,111	11,212	37,175

Basic and diluted net (loss) earnings per common share

	Three months ended				Nine months ended
	September 30,				September 30,
	2015		2014		2015		2014
Basic earnings per common share:
Net (loss) income	$	(17,630)	$	3,724	$	(47,315)	$	(6,406)
Less: Noncumulative dividends on convertible preferred stock		—		(2,552)		—		—
Undistributed earnings to participating securities		—		(1,000)		—		—
Net (loss) income attributable to common shares, basic		(17,630)		172		(47,315)		(6,406)
Weighted-average common shares outstanding		46,380		6,689		20,252		6,646
Less:  weighted-average unvested common shares subject to repurchase		(1,436)		(1,823)		(1,531)		(1,918)
Weighted-average number of shares used in computing net loss per share, basic		44,944		4,866		18,721		4,728
Basic net (loss) income per share	$	(0.39)	$	0.04	$	(2.53)	$	(1.35)
Diluted earnings per common share:
Net (loss) income attributable to common shares, basic	$	(17,630)	$	172	$	(47,315)	$	(6,406)
Adjustment to undistributed  earnings to participating securities		—		1,000		—		—
Net (loss) income attributable to common shares, diluted		(17,630)		1,172		(47,315)		(6,406)
Weighted-average number of shares used in computing net loss per share, basic		44,944		4,866		18,721		4,728
Add:  Weighted average number of potential dilutive common shares		—		32,065		—		—
Weighted-average number of shares unused in computing net loss per share, diluted		44,944		36,931		18,721		4,728
Diluted net (loss) income  per share	$	(0.39)	$	0.03	$	(2.53)	$	(1.35)