Net Loss Attributable to Common Stockholders Per Share

9 Months Ended

Sep. 30, 2021

Net Loss Attributable to Common Stockholders Per Share

Potentially issuable shares of common stock include shares issuable upon the exercise of outstanding employee stock option awards. Awards granted with performance conditions are excluded from the shares used to compute diluted earnings per share until the performance conditions associated with the awards are met.

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


	Three months ended September 30,				Nine months ended September 30,
	2021		2020		2021		2020

Numerator
Net loss attributable to common stockholders	$	(20,403)	$	(8,601)	$	(53,992)	$	(29,456)
Cumulative undeclared dividends on Series D convertible preferred stock	—		(140)		—		(1,735)
Net loss attributable to common stockholders, basic and diluted	$	(20,403)	$	(8,741)	$	(53,992)	$	(31,191)
Denominator
Weighted-average shares used to compute net income per share, basic and diluted	67,213,282		53,596,982		66,428,303		20,041,080
Net loss per share
Net loss per share attributable to common stockholders, basic and diluted	$	(0.30)	$	(0.16)	$	(0.81)	$	(1.56)

Since the Company was in a loss position for all periods presented, basic net loss per share attributable to common stockholders is the same as diluted net loss per share attributable to common stockholders, as the inclusion of all potential shares of common stock outstanding would have been anti-dilutive. The following weighted-average common stock equivalents were excluded from the calculation of diluted net loss per share attributable to common stockholders for the periods presented as they had an anti-dilutive effect:


	Three months ended September 30,		Nine months ended September 30,
	2021	2020	2021	2020

Convertible preferred stock (on an if-converted basis)	—	—	—	—
Options to purchase common stock	7,080,020	9,818,701	7,080,020	9,818,701
Restricted stock units	—	—	—	—
Restricted shares of common stock related to early exercise of options	520,494	7,344	520,494	7,344
Warrants to purchase Series C convertible preferred stock	—	—	—	—
Total	7,600,514	9,826,045	7,600,514	9,826,045