Net (Loss) Income Per Share Attributable to Common Shareholders

3 Months Ended

Mar. 31, 2022

Net (Loss) Income Per Share Attributable to Common Shareholders

10. Net Loss Per Share Attributable to Common Shareholders

Basic net loss per share is calculated by dividing net loss attributable to common shareholders by the weighted-average number of common shares outstanding during the period. Diluted net loss per share is calculated by dividing the net loss attributable to common shareholders by the weighted-average number of common share equivalents outstanding for the period, including any dilutive effect from outstanding stock options and warrants using the treasury stock method. The Company’s net loss is net loss attributable to common shareholders for all periods presented.

The following common stock equivalents were excluded from the calculation of diluted net loss per share for the periods indicated because including them would have had an anti-dilutive effect (in thousands):


	Three Months Ended March 31,
	2022		2021
Outstanding options		8,220,458		8,572,663
Unvested restricted common shares		1,147,364		1,052,379
ESPP		10,969		10,594
Total		9,378,791		9,635,636