Net Loss per Share

9 Months Ended

Sep. 30, 2016

Note 7. Net Loss per Share

The following table summarizes the computation of basic and diluted net loss per share of our common stock for the three and nine months ended September 30, 2016 and 2015:


	Three Months Ended September 30,						Nine Months Ended September 30,
	2016			2015			2016			2015
	(in thousands, except share and per share data)
Numerator:
Net loss	$	(10,194	)	$	(11,825	)	$	(39,226	)	$	(28,751	)
Accretion of preferred stock to redemption value		—			—			—			(35,061	)
Beneficial conversion charge relating to IPO participation payment		—			(14,161	)		—			(14,161	)

Net loss attributable to common stockholders, basic and diluted	$	(10,194	)	$	(25,986	)	$	(39,226	)	$	(77,973	)

Denominator:
Weighted-average common shares outstanding, basic and diluted		41,482,173			33,020,484			41,033,080			19,544,759

Net loss per share attributable to common stockholders, basic and diluted	$	(0.25	)	$	(0.79	)	$	(0.96	)	$	(3.99	)

The following potentially dilutive securities outstanding, prior to the use of the treasury stock method or if-converted method, have been excluded from the computation of diluted weighted-average shares outstanding for the respective periods below because they would have been anti-dilutive:


	Three and Nine Months Ended September 30,
	2016		2015
Options to purchase common stock		4,520,062		4,060,480
Unvested restricted stock		696,187		372,775
Unvested restricted stock units		657,427		—
Warrants to purchase common stock		—		200,000
Shares to be issued under ESPP		15,087		—

Total		5,888,763		4,633,255