Net Loss Per Share (Tables)

9 Months Ended

Sep. 30, 2020

Schedule of Potentially Dilutive Common Stock Equivalents Excluded from Calculation of Diluted Net Loss Per Share

The following outstanding potentially dilutive common stock equivalents have been excluded from the calculation of diluted net loss per share for the periods presented due to their anti-dilutive effect:

	September 30,
	2020		2019
Common stock options issued and outstanding		6,677,969		5,625,481
Restricted stock subject to future vesting		538,326		1,125,570
Total		7,216,295		6,751,051

Schedule of Basic and Diluted Net Loss Per Share

	Three Months Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020			2019
	(in thousands except share data)
Net loss	$	(18,587	)	$	(20,299	)	$	(59,262	)	$	(45,347	)
Weighted-average number of shares-basic and diluted		33,636,651			32,864,156			33,457,768			26,950,854
Net loss per share—basic and diluted		(0.55	)		(0.62	)		(1.77	)		(1.68	)