Basis of Presentation and significant accounting policies (Tables)

3 Months Ended

Mar. 31, 2014

Basis of Presentation and significant accounting policies

Schedule of amounts 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

The amounts 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 (in thousands):

			Period
			from April 5,
			2011
	Three Months Ended		(inception) to
	March 31,		March 31,
	2014	2013	2014
Outstanding stock options and restricted stock units	2,225	2,664	2,225
Unvested founders’ stock	823	1,645	823
Total	3,048	4,309	3,048