Net Loss per Share

12 Months Ended

Dec. 31, 2019

Net Loss per Share

Net Loss per Share

15. Net Loss per Share

The Company calculates basic net loss per share by dividing net loss by the weighted average number of common shares outstanding, excluding restricted common stock. The Company has generated a net loss in all periods presented, so the basic and diluted net loss per share are the same, as the inclusion of the potentially dilutive securities would be anti-dilutive.

Basic and diluted net loss per share is calculated as follows (in thousands, except share and per share data):

	Year Ended		Year Ended
	December 31, 2019		December 31, 2018
Net loss	$	(51,000)	$	(49,326)
Weighted average common shares outstanding, basic and diluted		27,537,939		15,655,293
Net loss per share, basic and diluted	$	(1.85)	$	(3.15)

The following table sets forth the outstanding common stock equivalents, presented based on amounts outstanding at each period end, that have been excluded from the calculation of diluted net loss per share for the periods indicated because their inclusion would have been anti‑dilutive:

	Year Ended December 31,
	2019	2018
Restricted common stock	302,360	664,174
Warrant	7,614	7,614
Stock options	2,401,382	1,627,947
	2,711,356	2,299,735