Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Condensed Consolidated Statements of Operations and Comprehensive Loss
Collaboration revenue	$ 4,015	$ 2,364	$ 6,941	$ 3,393
Operating expenses:
In-process research and development	0	6,312	0	118,266
Research and development	40,451	29,083	77,323	44,452
General and administrative	10,042	6,978	20,732	12,983
Total operating expenses	50,493	42,373	98,055	175,701
Loss from operations	(46,478)	(40,009)	(91,114)	(172,308)
Interest income	3,081	3,887	6,077	6,694
Net loss	$ (43,397)	$ (36,122)	$ (85,037)	$ (165,614)
Per share information:
Net loss per share, basic	$ (0.5)	$ (0.6)	$ (1.02)	$ (2.97)
Net loss per share, diluted	$ (0.5)	$ (0.6)	$ (1.02)	$ (2.97)
Weighted-average shares outstanding, basic	87,010,742	59,936,703	83,231,544	55,740,543
Weighted-average shares outstanding, diluted	87,010,742	59,936,703	83,231,544	55,740,543
Comprehensive loss:
Net loss	$ (43,397)	$ (36,122)	$ (85,037)	$ (165,614)
Unrealized loss on marketable securities	(21)	(2)	(81)	(20)
Comprehensive loss	$ (43,418)	$ (36,124)	$ (85,118)	$ (165,634)