Net Loss per Share

9 Months Ended

Sep. 30, 2019

11. Net Loss per Share

Basic and diluted net loss per share attributable to common stockholders was calculated as follows for the three and nine months ended September 30, 2019 and 2018:

	For the three months ended September 30,						For the nine months ended September 30,
(In thousands, except per share amounts)	2019			2018			2019			2018
Numerator:
Net loss	$	(38,232	)	$	(43,640	)	$	(116,257	)	$	(129,084	)
Net loss:	$	(38,232	)	$	(43,640	)	$	(116,257	)	$	(129,084	)
Denominator:
Weighted average common shares outstanding, basic and diluted		38,125			37,818			38,043			37,712
Net loss per share, basic and diluted	$	(1.00	)	$	(1.15	)	$	(3.06	)	$	(3.42	)

The following common stock equivalents were excluded from the calculation of diluted net loss per share for the periods indicated as including them would have an anti-dilutive effect:

	For the three months ended September 30,				For the nine months ended September 30,
	2019		2018		2019		2018
Shares issuable upon conversion of the 2024 Convertible Notes		7,515		7,515		7,515		7,515
Stock options		5,157		4,653		5,016		4,466
Restricted stock units		908		297		782		269
Total		13,580		12,465		13,313		12,250