Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 157,018	$ 68,632
Short-term marketable securities	368,096	296,197
Accounts receivable	18	211
Prepaid expenses and other current assets	7,500	5,414
Total current assets	532,632	370,454
Restricted cash	757	106
Long-term marketable securities	107,492	8,317
Property and equipment, net	6,164	6,509
Right-of-use asset	2,246	2,484
Other non-current assets	25	99
Total assets	649,316	387,969
Current liabilities
Accounts payable	6,598	4,280
Accrued liabilities	18,756	16,999
Contract liability		8,568
Operating lease liabilities, current	1,747	1,871
Total current liabilities	27,101	31,718
Long-term contract liability		5,185
Long-term operating lease liabilities	1,125	1,611
Total liabilities	28,226	38,514
Commitments and contingencies (Note 6)
Stockholders’ equity
Preferred stock, $0.0001 par value, 10,000,000 shares authorized as of December 31, 2023 and December 31, 2022; no shares issued and outstanding as of December 31, 2023 and December 31, 2022
Common stock, $0.0001 par value, 300,000,000 shares authorized as of December 31, 2023 and December 31, 2022; 65,039,369 and 48,193,179 shares issued and outstanding as of December 31, 2023 and December 31, 2022	7	5
Additional paid-in capital	968,885	587,724
Accumulated other comprehensive income (loss)	562	(2,871)
Accumulated deficit	(348,364)	(235,403)
Total stockholders’ equity	621,090	349,455
Total liabilities and stockholders’ equity	$ 649,316	$ 387,969