Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 57,296	$ 76,124
Marketable securities, current	250,484	233,155
Accounts receivable	1,709	5,716
Prepaid expenses and other current assets	8,876	10,694
Total current assets	318,365	325,689
Marketable securities, non-current	90,057	142,200
Property and equipment, net	6,337	3,108
Right-of-use asset	73,122	31,945
Restricted cash	3,279	3,279
Other assets	1,315	544
Total assets	492,475	506,765
Current liabilities:
Accounts payable	4,446	4,506
Accrued expenses and other current liabilities	16,958	13,606
Deferred revenue, current	22,170	31,800
Operating lease liability, current	1,824	1,334
Long-term debt − related party, current	750	0
Total current liabilities	46,148	51,246
Deferred revenue, net of current	17,991	24,368
Operating lease liability, net of current	73,371	30,777
Long-term debt − related party, net of current	10,372	10,768
Total liabilities	147,882	117,159
Commitments and contingencies
Stockholders’ equity:
Preferred stock, par value of $0.0001 per share; 10,000,000 shares authorized, and no shares issued or outstanding as of June 30, 2022 and December 31, 2021, respectively	0	0
Common stock, par value of $0.0001 per share; 150,000,000 shares authorized, and 48,877,652 and 48,688,875 shares issued and outstanding as of June 30, 2022 and December 31, 2021, respectively	5	5
Additional paid-in capital	675,916	658,091
Accumulated other comprehensive loss	(4,581)	(775)
Accumulated deficit	(326,747)	(267,715)
Total stockholders’ equity	344,593	389,606
Total liabilities and stockholders’ equity	$ 492,475	$ 506,765