Condensed Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 118,710	$ 340,396
Marketable securities	467,590	270,331
Prepaid and other assets	10,847	12,215
Total current assets	597,147	622,942
Property and equipment, net	7,845	6,254
Restricted cash	251	251
Right-of-use assets	8,259	8,755
Other assets	474	598
Total assets	613,976	638,800
Current liabilities:
Accounts payable and accrued liabilities	33,890	32,572
Accrued compensation	6,009	11,190
Lease liabilities, current portion	3,129	3,105
Deferred revenue, current portion	5,057	5,041
Total current liabilities	48,085	51,908
Lease liabilities, net of current portion	6,976	7,582
Deferred revenue, net of current portion	0	1,235
Total liabilities	55,061	60,725
Contingencies (Note 7)
Stockholders’ equity:
Common stock, $0.0001 par value; authorized shares – 400,000; issued and outstanding shares – 70,813 and 69,768 at March 31, 2023 and December 31, 2022, respectively	7	7
Additional paid-in capital	971,375	939,310
Accumulated other comprehensive loss	(1,529)	(2,698)
Accumulated deficit	(410,938)	(358,544)
Total stockholders’ equity	558,915	578,075
Total liabilities and stockholders’ equity	$ 613,976	$ 638,800