Net Loss Per Share Attributable to Common Stockholders (Tables)

9 Months Ended

Sep. 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 September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Numerator:
Net loss attributable to common stockholders	$	(5,171	)	$	(8,755	)	$	(18,731	)	$	(23,636	)
Denominator:
Weighted-average common shares outstanding - basic and diluted		40,120			13,884			39,240			13,307
Net loss per common share - basic and diluted	$	(0.13	)	$	(0.63	)	$	(0.48	)	$	(1.78	)

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 September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Options to purchase common shares		9,224		11,514		10,127		10,862
Restricted stock units		1,829		—		1,257		—
Employee stock purchase plan shares		158		—		207		—
Common stock warrant		11		46		11		36
Convertible preferred shares (as converted)		—		17,645		—		18,040
Preferred stock warrant (as converted)		—		26		—		27
		11,222		29,231		11,602		28,965