CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 135,858	$ 190,301
Restricted cash	34	34
Total cash, cash equivalents and restricted cash	135,892	190,335
Short-term investments	48,898
Accounts receivable	195	429
Income tax and R&D incentive receivables	5,900	5,410
Prepaid expenses and other current assets	4,619	7,952
Total current assets	195,504	204,126
Property and equipment, net	1,236	1,448
Intangible assets, net	12,419	12,419
Other assets	747	872
Total assets	209,906	218,865
Current liabilities:
Accounts payable	2,872	2,034
Contingent consideration		6,090
Accrued expenses and other current liabilities	10,973	10,152
Total current liabilities	13,845	18,276
Other long-term liabilities	1,526	1,454
Total liabilities	15,371	19,730
Commitments and contingencies (Note 14)
Stockholders' equity:
Common stock, $0.0001 par value; 200,000,000 shares authorized; 46,372,105 and 40,993,768 shares issued and outstanding as of June 30, 2022 and December 31, 2021, respectively	5	4
Additional paid-in capital	532,398	497,342
Accumulated deficit	(332,708)	(293,171)
Accumulated other comprehensive loss, net	(5,160)	(5,040)
Total stockholders' equity	194,535	199,135
Total liabilities and stockholders' equity	$ 209,906	$ 218,865