Earnings (Loss) per Share

6 Months Ended

Jun. 30, 2019

9. Earnings (Loss) per Share

Basic and diluted loss per share

For the three and six months ended June 30, 2018 and 2019, 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 and thus not included in the calculation.


	Three Months Ended				Six Months Ended
	June 30,				June 30,
(in thousands, except share and per share data)	2018		2019		2018		2019
Net loss for the period	$	(17,788)	$	(21,707)	$	(31,130)	$	(41,924)
Weighted average number of shares outstanding		40,515,920		72,526,441		38,723,718		70,624,583
Basic and diluted loss per share	$	(0.44)	$	(0.30)	$	(0.80)	$	(0.59)

The following ordinary share equivalents were excluded from the calculations of diluted earnings per share as their effect would be anti-dilutive:


	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2018		2019		2018		2019
Stock option awards		4,896,520		8,363,789		4,896,500		8,363,789
Restricted stock units		328,300		1,524,642		328,300		1,524,642