Net Loss Per Share

12 Months Ended

Dec. 31, 2018

3.	Net Loss Per Share

Basic net loss per share is calculated by dividing net loss by the weighted-average number of common shares outstanding during the period without consideration for common stock equivalents. Diluted net loss per share is computed by dividing net loss by the weighted-average number of common share equivalents outstanding for the period determined using the treasury-stock method. For purposes of this calculation, stock options and the warrant for common stock are considered to be common stock equivalents and are only included in the calculation of diluted net loss per share when their effect is dilutive.

The following shares of common stock equivalents were excluded from the calculation of diluted net loss per share for the periods presented because including them would have been antidilutive:


	As of December 31,
	2018		2017		2016
Options to purchase common stock		10,504,412		7,470,601		6,543,654
Warrant for common stock		73,529		—		—

Total potential dilutive shares		10,577,941		7,470,601		6,543,654