Net Loss Per Share (Notes)

12 Months Ended

Dec. 31, 2019

Net Loss Per Common Share

Basic and diluted net loss per common share is determined by dividing net loss applicable to common stockholders by the weighted average common shares outstanding during the period. For all periods presented, the outstanding shares of preferred stock, warrants, stock option awards and restricted stock units have been excluded from the calculation because their effects would be anti-dilutive. Therefore, the weighted average common shares outstanding used to calculate both basic and diluted loss per common share are the same.

The following potentially dilutive securities were excluded from the computation of diluted weighted average common shares outstanding due to their anti-dilutive effect:



	As of December 31,
	2019	2018
Vested and unvested stock options	4,428,985	3,130,700
Restricted stock units	125,000	—
Warrants	95,431	102,647
	4,649,416	3,233,347