Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 152,406	$ 178,689
Marketable securities		111,421
Prepaid expenses and other current assets	4,802	2,612
Total current assets	157,208	292,722
Property and equipment, net	8,706	7,242
Right-of-use assets	57,743	64,357
Restricted cash	5,031	5,031
Long-term deposit and other assets	101	1,766
Total assets	228,789	371,118
Current liabilities:
Accounts payable	1,241	4,278
Accrued expenses and other current liabilities	7,668	15,410
Operating lease liability, current portion	7,167	4,570
Deferred revenue, current portion	2,619	11,698
Total current liabilities	18,695	35,956
Deferred revenue, net of current portion		1,246
Operating lease liability, net of current portion	54,437	60,739
Long-term debt and accrued interest	32,534	32,072
Other long term liabilities		135
Total liabilities	105,666	130,148
Commitments and contingencies (Note 10)
Stockholders' equity:
Additional paid-in capital	627,979	616,009
Accumulated other comprehensive income		51
Accumulated deficit	(504,862)	(375,096)
Total stockholders' equity	123,123	240,970
Total liabilities and stockholders' equity	228,789	371,118
Voting Common Stock
Stockholders' equity:
Common stock	5	5
Non-voting Common Stock
Stockholders' equity:
Common stock	$ 1	$ 1