Net Income (Loss) per Share Attributable to Common Stockholders

9 Months Ended

Sep. 30, 2022

Net Income (Loss) per Share Attributable to Common Stockholders

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

The dilutive effect of outstanding stock options and warrants is calculated using the treasury stock method. Stock options and warrants are anti-dilutive and excluded from the diluted net income (loss) per share calculation if the exercise price exceeds the average market price of the common shares.

Potentially dilutive securities that were not included in the diluted per share calculations because they would be anti-dilutive were as follows:

	Nine Months Ended September 30,
	2022		2021
Options to purchase common stock		7,034,805		3,019,457
Common stock warrants		—		85
Total		7,034,805		3,019,542

The following table sets forth the computation of the basic and diluted net income (loss) per common share as follows (in thousands, except share and per share data):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2022			2021			2022		2021
Net income (loss) attributable to common stockholders	$	(4,884	)	$	(25,238	)	$	32,212	$	(67,604	)
Weighted-average number of shares used in computing net loss per share, basic		31,484,542			31,379,755			31,472,666		30,382,231
Effect of dilutive stock options		—			—			133,168		—
Weighted-average number of shares used in computing net loss per share, diluted		31,484,542			31,379,755			31,605,834		30,382,231
Net income (loss) per share, basic	$	(0.16	)	$	(0.80	)	$	1.02	$	(2.23	)
Net income (loss) per share, diluted	$	(0.16	)	$	(0.80	)	$	1.02	$	(2.23	)