Net Loss Per Share (Tables)

9 Months Ended

Sep. 30, 2018

Summary of Calculation of Basic and Diluted Net Loss Per Share

The following table presents the calculation of basic and diluted net loss per share (in thousands, except per share data):

	Three Months Ended						Nine Months Ended
	September 30, 2018			September 30, 2017			September 30, 2018			September 30, 2017
Numerator:
Net loss allocable to common stockholders	$	(9,527	)	$	(46,235	)	$	(15,635	)	$	(70,450	)
Denominator:
Weighted-average shares used in computing net loss per share, basic and diluted		106,884			5,260			103,035			4,999
Net loss per share, basic and diluted	$	(0.09	)	$	(8.79	)	$	(0.15	)	$	(14.09	)

Schedule of Antidilutive Securities Excluded from Calculation of Diluted Net Loss Per Share

The potential common shares that would be excluded from the calculation of diluted net loss per share because of their anti-dilutive effect are as follows (in thousands):

	Three Months Ended				Nine Months Ended
	September 30, 2018		September 30, 2017		September 30, 2018		September 30, 2017
Equity awards to purchase common stock		20,575		27,326		20,575		27,326
Unvested shares of common stock issued upon early exercise of stock options and business acquisition		83		52		83		52
Warrants to purchase convertible preferred stock		—		2,226		—		2,226
Convertible preferred stock		—		80,844		—		80,844
Total		20,658		110,448		20,658		110,448