Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Consolidated Statements of Operations and Comprehensive Loss
Collaboration revenue	$ 9,041	$ 14,018
Operating expenses:
In-process research and development	152,344	80,802
Research and development	129,542	23,089
General and administrative	32,955	19,657
Total operating expenses	314,841	123,548
Loss from operations	(305,800)	(109,530)
Interest income	12,837	2,724
Net loss	$ (292,963)	$ (106,806)
Per share information:
Net loss per share, basic	$ (5.00)	$ (5.38)
Net loss per share, diluted	$ (5.00)	$ (5.38)
Weighted-average shares outstanding, basic	58,639,441	19,843,651
Weighted-average shares outstanding, diluted	58,639,441	19,843,651
Comprehensive loss:
Net loss	$ (292,963)	$ (106,806)
Unrealized gain on marketable securities	35	22
Comprehensive loss	$ (292,928)	$ (106,784)