CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 31,194	$ 52,889
Collaboration receivable, current - related party	24,453	49,391
Other receivables	2,460	3,085
Prepaid expenses and other current assets	1,295	1,911
Total current assets	59,402	107,276
Operating lease right of use assets	2,564	3,114
Other assets	153	153
Total assets	62,119	110,543
Current liabilities:
Accounts payable	780	7,306
Accrued expenses and other current liabilities	6,727	17,724
Operating lease liabilities	1,844	1,746
Income taxes payable	163	174
Deferred revenue, current	0	368
Deferred revenue, current - related party	5,431	21,756
Total current liabilities	14,945	49,074
Non-current operating lease liabilities	1,771	2,551
Deferred revenue, non-current	12,575	12,219
Deferred revenue, non-current - related party	0	576
Total liabilities	29,291	64,420
Commitments and contingencies (Note 8)
Stockholders' equity:
Preferred stock, $0.001 par value; 10,000,000 shares authorized, no shares issued and outstanding as of June 30, 2025 and December 31, 2024	0	0
Common stock, $0.001 par value; 120,000,000 shares authorized as of June 30, 2025 and December 31, 2024; 56,187,308 shares issued and outstanding as of June 30, 2025 and 54,593,527 shares issued and outstanding as of December 31, 2024	56	55
Additional paid-in capital	507,976	505,706
Accumulated deficit	(475,204)	(459,638)
Total stockholders' equity	32,828	46,123
Total liabilities and stockholders' equity	$ 62,119	$ 110,543