Condensed Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 139,262	$ 320,448
Marketable securities	257,809	85,095
Prepaid and other assets	7,729	5,598
Total current assets	404,800	411,141
Property and equipment, net	5,029	4,805
Restricted cash	501	251
Right-of-use asset	10,257	10,784
Other assets	548	599
Total assets	421,135	427,580
Current liabilities:
Accounts payable and accrued liabilities	18,821	14,085
Accrued compensation	4,241	8,940
Lease liabilities, current portion	2,544	1,769
Deferred revenue, current portion	5,314	4,864
Total current liabilities	30,920	29,658
Lease liabilities, net of current portion	9,347	9,960
Deferred revenue, net of current portion	5,160	6,532
Total liabilities	45,427	46,150
Commitments and contingencies (Note 7)	0	0
Stockholders’ equity:
Preferred stock, $0.0001 par value; authorized shares – 40,000; issued and outstanding shares – none	0	0
Common stock, $0.0001 par value; authorized shares – 400,000; issued and outstanding shares – 49,281 and 47,754 at March 31, 2022 and December 31, 2021, respectively	5	5
Additional paid-in capital	596,513	566,161
Accumulated other comprehensive loss	(2,026)	(187)
Accumulated deficit	(218,784)	(184,549)
Total stockholders’ equity	375,708	381,430
Total liabilities and stockholders’ equity	$ 421,135	$ 427,580