Net loss per common stock

3 Months Ended

Mar. 31, 2020

Earnings Per Share [Abstract]

Net loss per common stock

8. Net loss per common stock

Basic and diluted net loss per share of common stock is computed by dividing net loss by the weighted average number of common stock outstanding. The 10,925,481 pre-funded warrants are included in the computation of basic and diluted net loss per common stock as the warrants are fully vested and exercisable at any time and for a nominal cash consideration.

The Company excluded the following outstanding stock options and restricted stock units from the computation of basic and diluted net loss per common stock as the effect would have been antidilutive for all periods presented.

	THREE MONTHS ENDED MARCH 31,
	2020		2019
Outstanding stock options		5,344,927		2,633,197
Restricted stock units		134,000		—
		5,478,927		2,633,197