Net Loss Per Share (Tables)

3 Months Ended

Mar. 31, 2017

Computation of Basic and Diluted Net Loss per Share

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

	Three Months Ended
	March 31,
	2017			2016
Net loss, basic and diluted	$	(14,507	)	$	(9,288	)
Weighted average shares outstanding		29,160,611			28,206,861
Less: weighted average shares subject to repurchase		(1,102	)		(12,404	)
Weighted average shares used to compute basic and diluted net loss per share		29,159,509			28,194,457
Net loss per share, basic and diluted	$	(0.50	)	$	(0.33	)

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

The following potentially dilutive securities outstanding at the end of the periods presented have been excluded from the computation of diluted shares outstanding, as the effect would be anti-dilutive:

	March 31,
	2017		2016
Unreleased restricted stock		514,060		202,291
Options to purchase common stock		2,584,911		3,170,586
Total		3,098,971		3,372,877