11. Net Income (Loss) Per Share of Common Stock

The following table presents the calculation of basic and diluted net income (loss) per share of common stock for the periods indicated:


	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2018		2017		2018		2017
Net income (loss) attributable to common stockholders (basic)	$	(6,138,352)	$	4,759,844	$	(20,487,172)	$	(1,761,156)
Interest on convertible debt, net of tax		—		209,149		—		—
Net income (loss) attributable to common stockholders - diluted	$	(6,138,352)	$	4,968,993	$	(20,487,172)	$	(1,761,156)
Shares used to compute net income (loss) per common share - basic		12,061,672		3,695,660		10,701,977		1,883,115
Dilutive effect of warrants		—		45,026		—		—
Dilutive effect of convertible debt		—		739,550		—		—
Shares used to compute net income (loss) per common share - diluted		12,061,672		4,480,235		10,701,977		1,883,115
Net loss per share attributable to common stockholders - basic	$	(0.51)	$	1.29	$	(1.91)	$	(0.94)
Net loss per share attributable to common stockholders - diluted	$	(0.51)	$	1.11	$	(1.91)	$	(0.94)

Basic net loss per share is calculated by dividing net loss by the weighted-average number of common shares outstanding during the period. Diluted net loss per share is computed by dividing net loss by the weighted-average number of common shares and common share equivalents outstanding for the period. Common stock equivalents are only included when their effect is dilutive. In the three months ended September 30, 2017, the convertible debt and certain warrant shares were dilutive. The rights of the holders of voting common stock and non-voting common stock are identical, except with respect to voting and conversion. Shares of Jaguar non-voting common stock have the same rights to dividend and other distributions as voting common stock. For the three months ended September 30, 2018 and the nine months ended September 30, 2018 and 2017, the Company's potentially dilutive securities which include stock options, convertible preferred stock and common stock warrants have been excluded from the computation of diluted net loss per share as they would be anti-dilutive.