10. Net Loss per Share

Diluted net loss per share is the same as basic net loss per share for all periods presented because the effects of potentially dilutive items were anti-dilutive, given the Company’s net loss. The following securities have been excluded from the calculation of weighted-average shares of common stock outstanding because the effect is anti-dilutive for the three and six months ended June 30, 2018 and 2017:

	Three and Six Months Ended June 30,
	2018	2017
Stock options	4,659,638	5,095,909
Restricted stock units	1,280,627	1,355,393

Basic and diluted net loss per share is calculated as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
Numerator (in thousands):
Net loss	$	(18,347	)	$	(11,754	)	$	(33,218	)	$	(15,193	)

Denominator:
Weighted-average shares of common stock outstanding, basic and diluted	54,981,192			47,668,397			53,840,582			47,454,059

Net loss per share, basic and diluted	$	(0.33	)	$	(0.25	)	$	(0.62	)	$	(0.32	)