Net Loss Per Share Attributable to Common Stockholders (Tables)

6 Months Ended

Jun. 30, 2017

Computation of Basic and Diluted Net Loss Per Share

The following table sets forth the computation of basic and diluted net loss per share (in thousands, except per share data):


	Three Months Ended June 30,						Six Months Ended June 30,
	2017			2016			2017			2016
Numerator:
Net loss attributable to common stockholders	$	(7,013	)	$	(8,985	)	$	(13,560	)	$	(14,881	)
Denominator:
Weighted-average common shares outstanding - basic and diluted		39,175			13,036			38,793			13,016
Net loss per common share - basic and diluted	$	(0.18	)	$	(0.69	)	$	(0.35	)	$	(1.14	)

Schedule of Antidilutive Securities Excluded from Computation of Diluted Net Loss Per Share

The following weighted-average outstanding shares of common stock equivalents were excluded from the computation of diluted net loss per share attributable to common stockholders for the periods presented because the impact of including them would have been antidilutive (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Options to purchase common shares		10,145		10,693		10,587		10,515
Restricted stock units		1,286		—		966		—
Employee stock purchase plan shares		212		—		231		—
Common stock warrant		11		42		11		30
Convertible preferred shares (as converted)		—		18,240		—		18,240
Preferred stock warrant (as converted)		—		27		—		27
		11,654		29,002		11,795		28,812