Net Loss per Share (Tables)

6 Months Ended

Jun. 30, 2019

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 June 30,						Six Months Ended June 30,
	2019			2018			2019			2018
Numerator:
Net loss	$	(28,090	)	$	(13,533	)	$	(45,760	)	$	(26,488	)
Denominator:
Weighted-average common shares outstanding		45,409,588			44,450,312			44,970,831			28,248,337
Less: weighted-average common shares subject to vesting		(1,611,870	)		(1,916,671	)		(1,317,506	)		(2,012,330	)
Weighted-average common shares used to compute basic and diluted net loss per share		43,797,718			42,533,641			43,653,325			26,236,007
Net loss per share: basic and diluted	$	(0.64	)	$	(0.32	)	$	(1.05	)	$	(1.01	)

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:

	Six Months Ended June 30,
	2019		2018
Common stock options issued and outstanding		4,449,690		1,221,862
Unvested restricted common stock		1,257,651		636,574
Unvested early exercised common stock options		665,301		1,181,717
Total		6,372,642		3,040,153