Consolidated and Combined Balance Sheets - USD ($)	Jun. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 613,759,000	$ 7,227,000
Tax incentive receivable	13,939,000	2,633,000
Prepaid expenses and other current assets	15,984,000	1,305,000
Total current assets	643,682,000	11,165,000
Property and equipment, net	74,800	0
Tax incentive receivable	0	552,000
Total assets	643,757,000	11,717,000
Current liabilities:
Accounts payable	7,261,000	1,032,000
Accrued expenses and other current liabilities	16,924,000	1,047,000
Convertible term notes	0	5,339,000
Term loans	0	288,000
Derivative liability	0	913,000
Total current liabilities	24,185,000	8,619,000
Contingent value rights	33,930,000	0
Total liabilities	58,115,000	8,619,000
Commitments and contingencies (Note 7)
Convertible preferred shares (£0.0001 nominal value): No shares authorized issued and outstanding at June 30, 2021; 6,549,205 shares issued and outstanding at December 31, 2020	0	25,521,000
Combined deficit and shareholders’ equity:
Combined deficit		(22,423,000)
Series A convertible preferred shares: £0.002 nominal value: 22,840,902 shares authorized. No shares issued and outstanding	0
Ordinary shares: £0.002 nominal value: 89,899,419 shares authorized, issued and outstanding at June 30, 2021; No shares authorized, issued and outstanding at December 31, 2020	252,000
Additional paid-in capital	866,889,000
Accumulated other comprehensive income (loss)	3,225,000
Accumulated deficit	(284,724,000)
Total shareholders' equity	585,642,000
Total combined deficit and shareholders' equity		3,098,000
Total liabilities, convertible preferred shares, combined deficit and shareholders' equity	$ 643,757,000	$ 11,717,000