Net Loss per Share

6 Months Ended

Jun. 30, 2016

11. Net Loss per Share

The shares in the table below were excluded from the calculation of diluted net loss per share, prior to the use of the treasury stock method, due to their anti-dilutive effect:

	Three Months Ended				Six Months Ended
	June 30, 2016		June 30, 2015		June 30, 2016		June 30, 2015
Outstanding stock options		2,753,908		1,975,620		2,753,908		1,975,620
Unvested restricted stock		159,640		295,206		159,640		295,206
Unvested restricted stock units		396,813		25,875		396,813		25,875
Total		3,310,361		2,296,701		3,310,361		2,296,701