Share-based compensation (Tables)

3 Months Ended

Mar. 31, 2020

Share-based compensation

Summary of share-based compensation expense included in the unaudited consolidated statements of operations

The following table shows the total share-based compensation expense included in the unaudited consolidated statements of operations (in thousands):

	Three months ended
	March 31,
	2020		2019
Research and development	$	978	$	2,021
General and administrative		470		1,458
	$	1,448	$	3,479

Summary of all stock option activity

The following table shows information about share options and options which have a nominal exercise price (similar to restricted stock units (RSUs)) granted:

	Three months ended
	March 31,
	2020		2019
Number of options over ordinary shares granted		10,229,280		10,807,200
Weighted average fair value of ordinary shares options	$	0.51	$	0.55
Number of additional options with a nominal exercise price granted		6,060,696		6,498,126
Weighted average fair value of options with a nominal exercise price	$	0.74	$	0.94