Net Loss per Share (Tables)

3 Months Ended

Mar. 31, 2018

Computation of Basic and Diluted Net Loss Per Share

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

	Three Months Ended March 31,
	2018			2017
Numerator:
Net loss	$	(12,954	)	$	(7,200	)
Denominator:
Weighted-average common shares outstanding		11,598,421			3,549,791
Less: weighted-average common shares subject to repurchase		(2,110,069	)		(2,097,576	)
Weighted-average common shares used to compute basic and diluted net loss per share		9,488,352			1,452,215
Net loss per share: basic and diluted	$	(1.37	)	$	(4.96	)

Summary of Outstanding Potentially Dilutive Securities Excluded from Computation of Diluted Net Loss per Share

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

	Three Months Ended March 31,
	2018		2017
Convertible preferred stock		—		21,307,645
Common stock options issued and outstanding		1,009,216		527,703
Unvested restricted common stock		810,185		1,504,629
Unvested early exercised common stock options		1,329,165		717,956
Total		3,148,566		24,057,933