Net Loss Per Share

9 Months Ended

Sep. 30, 2019

Net Loss Per ShareBasic net loss from continuing operations per share is calculated by dividing net loss from continuing operations by the weighted average number of shares outstanding for the period. Diluted net loss from continuing operations per share is calculated by dividing net loss from continuing operations by the weighted average number of shares of common stock and

potential dilutive common stock equivalents outstanding during the period if the effect is dilutive. Our potentially dilutive shares of common stock include outstanding stock options, restricted stock units and warrants to purchase common stock.

A reconciliation of the numerators and denominators used in computing net loss from continuing operations per share is as follows (in thousands, except per share amounts):


	Three Months Ended September 30,						Nine Months Ended September 30,
	2019		2018		2019		2018
Numerator:
Net loss from continuing operations	$	(290,478)	$	(42,264)	$	(363,443)	$	(101,283)

Denominator:
Shares used in per share calculation	43,029		39,242		42,577		36,485

Net loss from continuing operations per share, basic and diluted	$	(6.75)	$	(1.08)	$	(8.54)	$	(2.78)

The following table presents the potential shares of common stock outstanding that were excluded from the computation of diluted net loss from continuing operations per share for the periods presented because including them would have been anti-dilutive (in thousands):


	Three Months Ended September 30,			Nine Months Ended September 30,
	2019	2018	2019	2018
Shares subject to outstanding stock options	4,172	3,957	4,040	3,752
Shares subject to outstanding restricted stock units	402	303	371	287
Shares subject to outstanding warrants to purchase common stock	28	28	28	35
Total	4,602	4,288	4,439	4,074