Net Loss Per Share

12 Months Ended

Dec. 31, 2016

12. NET LOSS PER SHARE

Basic net loss per share is calculated by dividing net loss by the weighted-average number of common shares outstanding during the period, less shares subject to repurchase, and excludes any dilutive effects of share-based awards and warrants. Diluted net loss per common share is computed giving effect to all potential dilutive common shares, including common stock issuable upon exercise of stock options, and unvested restricted common stock and stock units. As the Company had net losses for the years ended December 31, 2016, 2015 and 2014, all potential common shares were determined to be anti-dilutive. The following table sets forth the computation of net loss per common share (in thousands, except share and per share amounts):


	December 31,
	2016			2015			2014
Numerator:
Net loss	$	(112,387	)	$	(29,621	)	$	(3,214	)

Denominator:
Weighted average number of shares outstanding—basic and diluted		40,118,522			22,892,640			10,248,337

Net loss per share-basic and diluted	$	(2.80	)	$	(1.29	)	$	(0.31	)

Potentially dilutive securities that were not included in the diluted per share calculations because they would be anti-dilutive were as follows:


	December 31,
	2016		2015		2014
Options to purchase common stock		2,557,314		1,244,442		1,007,724
Warrants to purchase common stock		2,172,899		300,302		—

Total		4,730,213		1,544,744		1,007,724