Earnings (Loss) per Share

3 Months Ended

Mar. 31, 2020

10. Earnings (Loss) per Share

Basic and diluted loss per share

For the three months ended March 31, 2019 and 2020, basic and diluted net loss per share was determined by dividing net loss attributable to shareholders by the weighted average number of shares outstanding during the period. Diluted net loss per share is the same as basic net loss per share during the periods presented as the effects of the Company’s potential ordinary share equivalents are antidilutive since the Company had net losses for each period presented below.


	Three Months Ended
	March 31,
(in thousands, except per share data)	2019		2020
Net loss for the period	$	(20,217)	$	(23,259)
Weighted average number of shares outstanding		68,701,599		94,595,152
Basic and diluted loss per share	$	(0.29)	$	(0.25)

The following ordinary share equivalents were excluded from the calculations of diluted earnings per share as their effect would be anti-dilutive since the Company had net losses for each period presented below:


	Three Months Ended
	March 31,
	2019	2020
Stock option awards	8,242,762	11,227,159
Restricted stock units	1,792,850	2,287,021