Net Loss per Share (Tables)

6 Months Ended

Jun. 30, 2019

Summary of Basic and Diluted Net Loss Per Share of Common Stock

The following table summarizes the computation of basic and diluted net loss per share of our common stock for the three and six months ended June 30, 2019 and 2018:



	Three Months Ended June 30,						Six Months Ended June 30,
	2019			2018			2019			2018
	(in thousands, except share and per share data)
Numerator:
Net loss	$	(13,420	)	$	(14,333	)	$	(25,093	)	$	(30,694	)
Denominator:
Weighted-average common shares outstanding, basic and diluted	48,451,562			46,279,947			48,141,474			45,746,513
Net loss per share attributable to common stockholders, basic and diluted	$	(0.28	)	$	(0.31	)	$	(0.52	)	$	(0.67	)

Anti-Dilutive Securities Excluded from Computation Diluted Weighted Average Shares Outstanding

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 Six Months Ended June 30,
	2019	2018
Options to purchase common stock	3,137,554	4,054,256
Unvested restricted stock	—	115,168
Unvested restricted stock units	3,513,781	3,312,840
Shares to be issued under ESPP	46,331	61,966
Total	6,697,666	7,544,230