Net Loss per Share

3 Months Ended

Mar. 31, 2019

Earnings Per Share [Abstract]

Net Loss per Share

10. Net Loss per Share

The following table sets forth the computation of basic and diluted net loss per share attributable to common stockholders (in thousands, except share and per share amounts):

	Three Months Ended March 31,
	2019			2018
Numerator
Net loss	$	(37,470	)	$	(17,820	)
Denominator
Weighted average shares outstanding		40,512,983			35,889,835
Less: weighted average shares subject to repurchase		(6,670	)		(62,600	)
Weighted average shares used to compute basic and diluted net    loss per share		40,506,313			35,827,235
Net loss per share, basic and diluted	$	(0.93	)	$	(0.50	)

The following outstanding shares of potentially dilutive securities were excluded from the computation of diluted net loss per share attributable to common stockholders for the periods presented because including them would have been antidilutive:

	As of March 31,
	2019		2018
Common stock subject to repurchase		5,003		51,767
Options and awards issued and outstanding		5,257,140		3,793,364

As of March 31, 2019, the Company has contributions from plan participants of $0.7 million under the 2015 Employee Stock Purchase Plan (“2015 ESPP”), which if converted, would be equivalent to approximately 15,000 shares based on 85% of the stock price at the beginning of the offering period. As of March 31, 2018, the Company had contributions from plan participants of $0.4 million under the 2015 ESPP, which if converted, would have been equivalent to approximately 11,000 shares based on 85% of the stock price at the beginning of the offering period.