Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 484,161	$ 595,082
Tax incentive receivable	18,942	15,392
Prepaid expenses and other current assets	16,395	18,300
Total current assets	519,498	628,774
Property and equipment, net	905	162
Other, net	648	699
Total assets	521,051	629,635
Current liabilities:
Accounts payable	8,229	8,065
Accrued expenses and other current liabilities	25,340	16,573
Total current liabilities	33,569	24,638
Long term debt	67,400	75,700
Contingent value rights	0	37,700
Other, net	43	43
Total liabilities	101,012	138,081
Commitments and contingencies (Note 6)
Shareholders’ equity:
Ordinary shares: £0.002 nominal value: 152,500,000 shares authorized, 94,271,917 issued and outstanding at June 30, 2022; 152,500,000 shares authorized, 89,988,228 issued and outstanding at December 31, 2021	263	252
Additional paid-in capital	925,730	876,267
Accumulated other comprehensive (loss) income	(1,142)	688
Accumulated deficit	(504,812)	(385,653)
Total shareholders' equity	420,039	491,554
Total liabilities and shareholders' equity	$ 521,051	$ 629,635