Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Mar. 31, 2020
Current assets:
Cash and cash equivalents	$ 713,523	$ 76,644
Marketable securities	32,324	2,997
Prepaid expenses and other current assets	8,180	8,269
Total current assets	754,027	87,910
Property and equipment, net	2,847	2,497
Operating lease right-of-use asset	10,045	11,146
Other assets	7,295	4,373
Total assets	774,214	105,926
Current liabilities:
Accounts payable	12,357	15,334
Interest payable (related party)	0	15
Accrued expenses	44,377	29,060
Upfront payment received included in current deferred revenue	100,564	40,000
Cost share advance from collaboration partner	92,415	0
Operating lease liability	1,731	1,516
Amounts due to related parties	628	0
Total current liabilities	252,072	85,925
Deferred revenue, non-current	418,344	0
Cost share advance from collaboration partner, non-current	46,424	0
Long-term operating lease liability	9,669	10,996
Long-term debt, less current maturities (related party)	313,700	113,700
Other	4,662	3,582
Total liabilities	1,044,871	214,203
Commitments and contingencies (Note 11)
Shareholders’ deficit:
Common shares, par value $0.000017727 per share, 564,111,242 shares authorized, 90,870,042 and 89,833,998 issued and outstanding at December 31, 2020 and March 31, 2020, respectively	2	2
Additional paid-in capital	711,411	684,381
Accumulated other comprehensive loss	(17,285)	(1,646)
Accumulated deficit	(964,785)	(791,014)
Total shareholders’ deficit	(270,657)	(108,277)
Total liabilities and shareholders’ deficit	$ 774,214	$ 105,926