Net Loss Per Share

3 Months Ended

Mar. 31, 2018

8. Net Loss Per Share

Basic and diluted net loss per share is computed by dividing net loss by the weighted-average number of common stock outstanding during the period. For periods in which the Company generated a net loss, the Company does not include the potential impact of dilutive securities in diluted net loss per share, as the impact of these items is anti-dilutive.

The following weighted-average equity instruments were excluded from the calculation of diluted net loss per share because their effect would have been anti-dilutive for the periods presented:

	Three Months Ended
	March 31,
	2018		2017
Unvested restricted common stock		32,066		74,013
Options to purchase common stock		2,695,802		1,330,481