CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 20,948	$ 41,918
Accounts receivable	371	526
Refundable research income tax credits	10,142	4,072
Prepaid expenses and other current assets	4,369	5,175
Total current assets	35,830	51,691
Property and equipment, net	11,042	17,887
Operating lease right-of-use assets	3,064	16,869
Refundable research income tax credits, non-current	8,938	12,809
Other non-current assets	871	879
Restricted cash	0	1,500
Total assets	59,745	101,635
Current liabilities:
Accounts payable	14,437	15,485
Accrued compensation and employee benefits	17,721	14,569
Other accrued liabilities	9,409	8,195
Deferred revenues	899	7,556
Total current liabilities	42,466	45,805
Deferred revenues, non-current	5,874	5,874
Long-term portion of lease liabilities	25,093	26,253
Other non-current liabilities	580	933
Total liabilities	74,013	78,865
Commitments and contingencies
Stockholders’ equity (deficit):
Preferred stock, $0.01 par value, 5,000,000 shares authorized, and no shares issued or outstanding	0	0
Common stock, $0.01 par value; 960,000,000 shares authorized; 350,688,142 and 212,837,679 shares issued and outstanding at December 31, 2025 and 2024, respectively	3,507	2,128
Additional paid-in capital	1,610,938	1,532,489
Accumulated deficit	(1,627,249)	(1,504,317)
Accumulated other comprehensive loss	(1,464)	(7,530)
Total stockholders’ equity (deficit)	(14,268)	22,770
Total liabilities and stockholders’ equity (deficit)	$ 59,745	$ 101,635