Share-Based Compensation (Tables)

6 Months Ended

Sep. 30, 2019

Share-based Payment Arrangement [Abstract]

Summary of Stock Option Activity

A summary of stock option activity under the Company’s 2016 Plan is as follows:

	Number of Options
Options outstanding at March 31, 2019	5,396,465
Granted	2,470,900
Exercised	(33,461	)
Forfeited	(187,444	)
Options outstanding at September 30, 2019	7,646,460
Options vested and expected to vest at September 30, 2019	7,646,460
Vested options subject to one-year exercise restriction period beginning on August 26, 2019	735,428
Options exercisable at September 30, 2019	1,684,887

Summary of Restricted Share Awards and Restricted Stock Units Activity

A summary of restricted stock award and restricted stock unit activity under the Company’s 2016 Plan is as follows:

	Number of Shares
Unvested balance at March 31, 2019	956,066
Granted	724,554
Vested	(142,904	)
Forfeited	(8,345	)
Unvested balance at September 30, 2019	1,529,371

Schedule of Share-based Compensation

Share-based compensation expense was as follows (in thousands):

	Three Months Ended September 30,
	2019		2018
Share-based compensation expense recognized as:
R&D expenses	$	3,618	$	1,846
G&A expenses	4,313		2,879
Total	$	7,931	$	4,725

	Six Months Ended September 30,
	2019		2018
Share-based compensation expense recognized as:
R&D expenses	$	6,166	$	3,407
G&A expenses	8,217		5,562
Total	$	14,383	$	8,969