Net Loss per Share (Tables)

3 Months Ended

Mar. 31, 2016

Net Loss per Share

Basic and diluted net loss per common share

	Three months ended
	March 31,
(in thousands, except per share data)	2016		2015
Basic and diluted loss per share:
Net loss	$	(8,685)	$	(10,004)
Weighted-average common shares outstanding		50,803		6,916
Less:  weighted-average unvested common shares subject to repurchase		(364)		(1,627)
Weighted-average number of shares used in computing net loss per share, basic and diluted		50,439		5,289
Basic and diluted net loss per share	$	(0.17)	$	(1.89)

Potentially dilutive shares not included in the calculation of dilutive EPS

	Three months ended
	March 31,
	2016	2015
	(in thousands)
Options to purchase common stock	8,395	9,358
Warrants to purchase common stock	377	852
Common stock subject to repurchase	—	1,596
Convertible preferred stock	—	31,397
	8,772	43,203