Net Income (Loss) Per Share Attributable to Common Stockholders

12 Months Ended

Dec. 31, 2022

Net Income (Loss) Per Share Attributable to Common Stockholders

13. Net Income (Loss) Per Share Attributable to Common Stockholders

Basic and diluted earnings per share are calculated as follows:


	Year Ended
	December 31,
	2022				2021		2020
Net income (loss)	$		(115,909	)	$	121,190	$		(10,947	)
Weighted average common shares outstanding, basic			83,245,385			82,820,037			21,592,441
Dilutive effect of outstanding stock options		—				5,429,206		—
Weighted average common shares outstanding, diluted			83,245,385			88,249,243			21,592,441
Net income (loss) per share, basic	$		(1.39	)	$	1.46	$		(0.51	)
Net income (loss) per share, diluted	$		(1.39	)	$	1.37	$		(0.51	)

Stock options for the purchase of 13,632,278 weighted average shares were excluded from the computation of diluted net loss per share attributable to common stockholders for the year ended December 31, 2022 as their effect is antidilutive.

Stock options for the purchase of 3,661,548 weighted average shares were excluded from the computation of diluted net income per share attributable to common stockholders for the year ended December 31, 2021 because those options had an anti-dilutive impact due to the assumed proceeds per share using the treasury stock method being greater than the average fair value of the Company’s common shares for the period.

For the year ended December 31, 2020, options to purchase 7,917,783 shares of common stock have been excluded from the calculation of diluted net loss per share, as their effect is anti-dilutive.