Net loss per share

9 Months Ended

Sep. 30, 2022

Net loss per share

Net loss per share

12. Net loss per share

Basic loss per common share is calculated by dividing net loss applicable to common stockholders by the weighted-average number of common shares outstanding during the period. Diluted net loss per common share is calculated by increasing the denominator by the weighted-average number of additional shares that could have been outstanding from securities convertible into common stock, such as stock options, restricted stock units, and employee stock purchase plan shares (using the “treasury stock” method), and the 2018 Notes (using the “if-converted” method), unless their effect on net loss per share is anti-dilutive.

The following potentially dilutive securities 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:

	Three months ended September 30,		Nine months ended September 30,
	2022	2021	2022	2021
Outstanding stock options	13,654,175	12,947,009	13,654,175	12,947,009
Outstanding restricted stock units	2,483,652	1,749,979	2,483,652	1,749,979
2018 Notes	41,873	41,873	41,873	41,873
Employee stock purchase plan	77,700	29,328	77,700	29,328
Total potentially dilutive securities	16,257,400	14,768,189	16,257,400	14,768,189