Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
CURRENT ASSETS
Cash and cash equivalents	$ 227,552	$ 188,893
Marketable securities	257,089	150,384
Prepaid expenses and other current assets	2,632	2,251
Total current assets	487,273	341,528
Restricted cash	319	322
Other non-current assets	10	9
TOTAL ASSETS	487,602	341,859
CURRENT LIABILITIES
Accounts payable	3,106	896
CVR liability	2,590	1,390
Accrued and other current liabilities	21,594	13,108
Related party accounts payable and other current liabilities	15,528	16,584
Total current liabilities	42,818	31,978
Non-current CVR liability	39,110	41,310
TOTAL LIABILITIES	81,928	73,288
Commitments and Contingencies (Note 6)
STOCKHOLDERS’ EQUITY
Common stock, $0.0001 par value; 400,000,000 shares authorized as of March 31, 2024 and December 31, 2023; 36,629,680 shares and 36,057,109 shares issued and outstanding as of March 31, 2024 and December 31, 2023, respectively	10	10
Additional paid-in capital	775,966	763,191
Accumulated other comprehensive (loss) income	(363)	302
Accumulated deficit	(808,271)	(764,414)
TOTAL STOCKHOLDERS’ EQUITY	152,269	184,016
TOTAL LIABILITIES, CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS’ EQUITY	487,602	341,859
Series B Non Voting Convertible Preferred Stock
CURRENT LIABILITIES
Series B non-voting convertible preferred stock, $0.0001 par value; 271,625 and $150,000 shares authorized as of March 31, 2024 and December 31, 2023, respectively; $271,625 and $150,000 shares issued and outstanding as of March 31, 2024 and December 31, 2023, respectively	253,405	84,555
Series A Non Voting Convertible Preferred Stock
STOCKHOLDERS’ EQUITY
Series A non-voting convertible preferred stock & preferred stock shares authorized, issued, and outstanding, value	184,927	184,927
Preferred Stock, Excluding Series A Non Voting Convertible Preferred Stock
STOCKHOLDERS’ EQUITY
Series A non-voting convertible preferred stock & preferred stock shares authorized, issued, and outstanding, value	$ 0	$ 0