BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 25,291	$ 30,605
Marketable securities	207,644	171,123
Prepaid expenses and other current assets	2,654	2,652
Total current assets	235,589	204,380
Restricted cash	4,044	4,044
Property and equipment, net	7,325	4,908
Right-of-use asset	30,412	1,792
Prepaid expenses and other non-current assets	295	5,376
Total assets	277,665	220,500
Current liabilities:
Accounts payable	4,580	6,777
Accrued expenses and other current liabilities	15,768	13,093
Operating lease liability	1,481	1,832
Total current liabilities	21,829	21,702
Other liabilities	3,339	3,361
Operating lease liability	15,407
Total liabilities	40,575	25,063
Commitments (note 8)
Stockholders’ equity:
Additional paid-in capital	693,252	531,682
Accumulated other comprehensive income (loss)	223	(1,692)
Accumulated deficit	(456,390)	(334,558)
Total stockholders’ equity	237,090	195,437
Total liabilities and stockholders’ equity	277,665	220,500
Voting Common Stock
Stockholders’ equity:
Common stock	4	4
Non-voting Common Stock
Stockholders’ equity:
Common stock	$ 1	$ 1