Net loss per share

6 Months Ended

Jun. 30, 2016

Earnings Per Share [Abstract]

Net loss per share

9. Net Loss Per Share

The following table sets forth the outstanding potentially dilutive securities that have been excluded in the calculation of diluted net loss per share because to do so would be anti-dilutive (in common stock equivalent shares):

	As of June 30,
	2016	2015
Redeemable convertible preferred stock	—	17,647,054
Unvested restricted common stock	1,450,352	2,160,342
Outstanding stock options	1,783,951	339,035
Total	3,234,303	20,146,431