Net Loss per Share of Common Stock (Tables)

9 Months Ended

Sep. 30, 2014

Summary of Computation of Basic and Diluted Net Loss Per Share

The following table summarizes the computation of basic and diluted net loss per share attributable to common stockholders of the Company (in thousands, except share and per share data):

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2014			2013			2014			2013
Net loss attributable to common stockholders - basic and diluted	$	(13,834	)	$	(5,009	)	$	(67,419	)	$	(12,683	)
Weighted-average shares outstanding		24,194,808			250,991			17,137,647			178,023
Less: weighted average shares subject to repurchase		—			(246	)		—			(246	)
Weighted-average shares used to compute basic and diluted net loss per share		24,194,808			250,745			17,137,647			177,777
Basic and diluted net loss per common share	$	(0.57	)	$	(19.98	)	$	(3.93	)	$	(71.34	)

Summary of Potentially Dilutive Securities Excluded from Computation of Diluted Shares Outstanding

The following potentially dilutive securities outstanding at the end of the periods presented have been excluded from the computation of diluted shares outstanding:


	September 30,
	2014		2013
Convertible preferred stock		—		8,945,252
Warrants to purchase convertible preferred stock (1)		—		173,910
Options to purchase common stock		2,477,446		828,382
Restricted stock units		104,821		—

(1)	Assumes exercise of warrants to purchase convertible preferred stock at $5.17 per share.