Net Loss per Share

3 Months Ended

Mar. 31, 2020

The Company excluded 248,625 shares of restricted common stock for the three months ended March 31, 2020 and 603,054 shares of restricted common stock for the three months ended March 31, 2019 from the calculation of basic net loss per share because these shares had not vested.

The Company’s potential dilutive securities have been excluded from the computation of diluted net loss per share attributable to common stockholders whenever the effect of including them would be to reduce the net loss per share. In periods where there is a net loss, the weighted average number of common shares outstanding used to calculate both basic and diluted net loss per share attributable to common stockholders is the same. The following potential shares of common stock, presented based on amounts outstanding at each period end, were excluded from the calculation of diluted net loss per share attributable to common stockholders for the periods indicated because including them would have had an anti-dilutive effect:



	Three Months Ended March 31,
	2020	2019
Outstanding stock options	3,179,605	3,564,631
Unvested restricted stock units	1,756,059	484,339
Unvested restricted common stock	248,625	603,054
ESPP shares issuable and outstanding	70,661	—
	5,254,950	4,652,024