Net Loss Per Share of Common Stock

9 Months Ended

Sep. 30, 2020

The following table sets forth the computation of basic and diluted earnings per share for the three and nine months ended September 30, 2020 and 2019:


	Three months ended September 30,				Nine months ended September 30,
	2020		2019		2020		2019
Net loss—basic and diluted	$	(10,473,847)	$	(22,773,281)	$	(18,031,641)	$	(32,624,697)
Deemed dividend related to Warrant Exchange (Note 12)	—		—		(12,546,340)		—
Net loss to common stockholders	$	(10,473,847)	$	(22,773,281)	$	(30,577,981)	$	(32,624,697)
Shares used in calculating net loss per common share—basic and diluted	141,591,218		6,411,308		92,764,157		5,839,840
Net loss per common share—basic and diluted	$	(0.07)	$	(3.55)	$	(0.33)	$	(5.59)

The following potentially dilutive securities have been excluded from the computation of diluted weighted average shares outstanding, as their inclusion would have been antidilutive:


	Three months ended September 30,		Nine months ended September 30,
	2020	2019	2020	2019
Options to purchase common stock	4,268,277	500,933	4,268,277	500,933
Warrants	870,017	870,017	870,017	870,017
Series A Warrants	—	8,771,928	—	8,771,928
Series B Warrants (1)	—	8,007,461	—	8,007,461
Series C Warrants	—	50,000,000	—	50,000,000
Total	5,138,294	68,150,339	5,138,294	68,150,339

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(1) Series B Warrants do not include the additional Series B Warrants that were contingent upon the reset pricing as discussed in Note 12.