Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Condensed Consolidated Statements of Operations and Comprehensive Loss
Collaboration revenue	$ 2,910	$ 3,565	$ 6,303	$ 10,192
Operating expenses:
In-process research and development	6,706		124,972
Research and development	37,200	3,823	81,652	13,452
General and administrative	9,526	4,375	22,509	11,617
Total operating expenses	53,432	8,198	229,133	25,069
Loss from operations	(50,522)	(4,633)	(222,830)	(14,877)
Interest income	3,422	288	10,116	705
Net loss	$ (47,100)	$ (4,345)	$ (212,714)	$ (14,172)
Per share information:
Net loss per share, basic	$ (0.78)	$ (0.36)	$ (3.72)	$ (1.16)
Net loss per share, diluted	$ (0.78)	$ (0.36)	$ (3.72)	$ (1.16)
Weighted-average shares outstanding, basic	60,205,327	12,202,335	57,239,668	12,194,277
Weighted-average shares outstanding, diluted	60,205,327	12,202,335	57,239,668	12,194,277
Comprehensive loss:
Net loss	$ (47,100)	$ (4,345)	$ (212,714)	$ (14,172)
Unrealized gain on marketable securities	68		48
Comprehensive loss	$ (47,032)	$ (4,345)	$ (212,666)	$ (14,172)