Net Loss Per Share

12 Months Ended

Dec. 31, 2021

18. Net loss per share

Basic and diluted net loss per share attributable to common stockholders was calculated as follows (in thousands, except share and per share data):


	YEAR ENDED DECEMBER 31,
	2021			2020
Numerator:
Net loss	$	(37,157	)	$	(91,665	)
Cumulative dividends on redeemable convertible preferred stock		—			(10,831	)
Net loss attributable to common stockholders	$	(37,157	)	$	(102,496	)
Denominator:
Weighted average common shares outstanding, basic and diluted		21,794,546			6,332,841
Net loss per share attributable to common stockholders, basic and diluted	$	(1.70	)	$	(16.18	)

As of December 31, 2021 and 2020, we had 4,763,489 and 4,543,318 outstanding stock options, respectively, representing potential common shares, presented based on amounts outstanding at each period end, were excluded from the calculation of diluted net loss per share attributable to common stockholders for the periods indicated because including them would have been anti-dilutive.