Net Loss Per Share Attributable to Common Stockholders

6 Months Ended

Jun. 30, 2021

Net Loss Per Share Attributable to Common Stockholders

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


	Six Months Ended June 30,
	2021	2020
Options to purchase common stock	3,842,588	2,529,999
Restricted stock awards granted and not purchased	4,195	4,195
Unvested restricted shares	66,046	197,891
Total	3,912,829	2,732,085

A reconciliation of the numerator and denominator used in the calculation of the basic and diluted net loss per share attributable to common stockholders is as follows (in thousands, except share and per share amounts):


	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Net loss per share:
Net loss	$	(22,831)	$	(17,001)	$	(45,687)	$	(5,972)
Net loss attributable to common stockholders	$	(22,831)	$	(17,001)	$	(45,687)	$	(5,972)
Weighted-average common shares outstanding used to calculate net loss per share attributable to common stockholders:
Basic	35,746,922		12,253,943		35,726,393		7,062,780
Diluted	35,746,922		12,253,943		35,726,393		7,062,780
Net loss per share attributable to common stockholders:
Basic	$	(0.64)	$	(1.39)	$	(1.28)	$	(0.85)
Diluted	$	(0.64)	$	(1.39)	$	(1.28)	$	(0.85)