Net Loss per Share

3 Months Ended

Mar. 31, 2020

Earnings Per Share [Abstract]

Net Loss per Share

13. Net Loss per Share

Basic net loss per share is computed by dividing the net loss by the weighted average number of common shares outstanding during the period. For periods in which the Company reports net income, diluted net income per share is determined by adding to the basic weighted average number of common shares outstanding the total number of dilutive common equivalent shares using the treasury stock method, unless the effect is anti-dilutive. Potentially dilutive shares were not included in the calculation of diluted net loss per share for each of the three months ended March 31, 2020 and 2019, respectively, as their inclusion would be anti-dilutive.

Potential common stock equivalents excluded from the calculation of diluted earnings per share because the effect would have been anti-dilutive were as follows:

	Three Months Ended March 31,
	2020		2019
Stock options		14,204,662		8,956,961
ESPP		39,744		—
Warrants		486,812		486,812
Restricted stock units		2,046,583		1,265,151
Performance stock units		—		321,666
Deferred stock units		—		35,418
		16,777,801		11,066,008