CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 179,947	$ 190,301
Restricted cash	34	34
Total cash, cash equivalents and restricted cash	179,981	190,335
Accounts receivable	193	429
Income tax and R&D incentive receivables	5,880	5,410
Prepaid expenses and other current assets	5,039	7,952
Total current assets	191,093	204,126
Property and equipment, net	1,337	1,448
Intangible assets, net	12,419	12,419
Other assets	811	872
Total assets	205,660	218,865
Current liabilities:
Accounts payable	2,205	2,034
Contingent consideration	4,310	6,090
Accrued expenses and other current liabilities	12,609	10,152
Total current liabilities	19,124	18,276
Other long-term liabilities	1,668	1,454
Total liabilities	20,792	19,730
Commitments and contingencies (Note 16)
Stockholders' equity:
Common stock, $0.0001 par value; 200,000,000 shares authorized; 43,219,896 and 40,993,768 shares issued and outstanding at March 31, 2022 and December 31, 2021, respectively	4	4
Additional paid-in capital	502,505	497,342
Accumulated deficit	(312,601)	(293,171)
Accumulated other comprehensive loss, net	(5,040)	(5,040)
Total stockholders' equity	184,868	199,135
Total liabilities and stockholders' equity	$ 205,660	$ 218,865