Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 143,876	$ 143,351
Marketable securities	124,160	73,952
Prepaid expenses and other current assets	9,396	4,036
Total current assets	277,432	221,339
Property and equipment, net	11,025	10,113
Operating right-of-use assets	3,269	4,278
Restricted cash	210	100
Other long-term assets	4,354	4,411
Total assets	296,290	240,241
Current liabilities:
Accounts payable	4,660	14,189
Accrued expenses and other current liabilities	18,218	33,177
Deferred revenue, current	0	6,941
Total current liabilities	22,878	54,307
Operating lease liabilities, net of current portion	4,142	4,769
Total liabilities	27,020	59,076
Commitments and contingencies (Note 7)
Stockholders' equity:
Preferred stock, $0.0001 par value; 10,000,000 shares authorized; no shares issued or outstanding at June 30, 2025 and December 31, 2024
Common stock, $0.0001 par value; 300,000,000 shares authorized at June 30, 2025 and December 31, 2024; 87,012,835 and 64,460,829 shares issued and outstanding at June 30, 2025 and December 31, 2024, respectively	9	6
Additional paid-in capital	870,092	696,872
Accumulated other comprehensive (loss) income	(24)	57
Accumulated deficit	(600,807)	(515,770)
Total stockholders' equity	269,270	181,165
Total liabilities and stockholders' equity	$ 296,290	$ 240,241