Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 34,285	$ 42,649
Accounts receivable, net of allowance for credit loss of $nil	117	0
Prepaid expenses and other current assets	5,991	1,519
Marketable securities	542,884	568,564
Interest receivable on marketable securities	3,895	3,702
Total current assets	587,172	616,434
Property and equipment, net of accumulated depreciation of $782 and $666, respectively	751	717
Intangible assets, net of amortization of $138	2,932	0
Lease security deposit	143	141
Operating lease right-of-use assets	2,723	3,605
Other non-current assets	1,075	587
Total assets	594,796	621,484
Current liabilities:
Accounts payable	5,211	2,209
Current operating lease liabilities	2,076	1,972
Contract liabilities, current portion	12,200	0
Short-term borrowings	11,634	0
Accrued expenses	19,974	9,793
Total current liabilities	51,095	13,974
Warrant liability	1,441	353
Contract liabilities, net of current portion	9,157	0
Non-current operating lease liabilities	972	2,035
Total liabilities	62,665	16,362
Commitments and contingencies (Note 12)
Mezzanine equity;
Class A convertible preferred stock, $.0001 par value per share; 851,202 shares issued and outstanding as of June 30, 2024.	274,938	0
Total Mezzanine Equity, Total	274,938	0
Stockholders' equity
Class A and Class B common stock and additional paid in capital, $0.0001 par value per share; 1,060,000,000 (Class A 1,000,000,000, Class B 60,000,000) shares authorized as of June 30, 2024 and December 31, 2023, 248,624,729 (Class A 247,624,729, Class B 1,000,000) and 219,046,219 (Class A 218,046,219, Class B 1,000,000) shares issued and outstanding as of June 30, 2024 and December 31, 2023, respectively	1,078,547	947,745
Accumulated deficit	(820,088)	(342,804)
Accumulated other comprehensive (loss) income	(1,266)	181
Total stockholders' equity	257,193	605,122
Total liabilities, mezzanine equity and stockholders' equity	$ 594,796	$ 621,484