CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 63,032	$ 182,476
Prepaid expenses	2,939	6,777
Other current assets	674	14,667
Total current assets	181,293	211,886
Property and equipment, net	20,572	24,404
Operating lease right-of-use assets	126,177	47,156
Restricted cash	13,691	14,062
Other assets	1,000	0
Total assets	342,733	297,508
Current liabilities:
Accounts payable	8,887	11,351
Accrued expenses and other current liabilities	12,600	15,904
Deferred revenue — related party	7,824	7,092
Operating lease liability	8,137	3,614
Total current liabilities	37,448	37,961
Deferred revenue, net of current — related party	58,127	63,218
Operating lease liability, net of current	108,290	37,180
Research and development funding liability	18,000	6,000
Total liabilities	221,865	144,359
Commitments and contingencies (Note 12)
Stockholders’ equity
Common stock, par value of $0.00001 per share; 775,000,000 shares authorized; 180,514,014 and 131,160,842 shares issued and outstanding as of December 31, 2025 and 2024, respectively	2	2
Additional paid-in capital	1,009,138	840,358
Accumulated other comprehensive income	82	1
Accumulated deficit	(888,354)	(687,212)
Total stockholders’ equity	120,868	153,149
Total liabilities and stockholders’ equity	342,733	297,508
Nonrelated Party
Current assets:
Short-term investments	114,648	2,998
Related Party
Current assets:
Short-term investments	$ 0	$ 4,968