Net Loss per Share

12 Months Ended

Dec. 31, 2020

The Company calculates earnings per share (“EPS”) in accordance with the provisions of ASC 260-10 and the guidance of SEC Staff Accounting Bulletin (“SAB”) No. 98. Under ASC 260-10, basic EPS excludes dilution for common stock equivalents and is computed by dividing net income or loss attributable to common shareholders by the weighted average number of common shares outstanding for the period. All options, warrants or other potentially dilutive instruments issued for nominal consideration are required to be included in the calculation of basic and diluted net income attributable to common stockholders. Diluted EPS is calculated using the treasury stock method and reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock and resulted in the issuance of common stock.

Diluted net loss per common share for the year ended December 31, 2020 does not include the effect of options to purchase 7,283,938 shares of common stock as the effect of their inclusion is anti-dilutive. Diluted net loss per common share for the year ended December 31, 2019 does not include the effect of options to purchase 8,848,907 shares of common stock as the effect of their inclusion is anti-dilutive. Diluted net loss per common share for the year ended December 31, 2018 does not include the effect of options to purchase 8,957,672 shares of common stock as the effect of their inclusion is anti-dilutive.

A reconciliation of shares used in calculating basic and diluted earnings per share follows:


	Year Ended December 31,
	2020	2019	2018
Basic	65,888,450	62,593,026	59,203,400
Effect of assumed exercised options	—	—	—
Diluted	65,888,450	62,593,026	59,203,400