CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Revenue:
Collaboration revenue	$ 4,632	$ 2,983
Operating expenses:
Research and development	160,636	155,289
General and administrative	52,346	50,161
Total operating expenses	212,982	205,450
Loss from operations	(208,350)	(202,467)
Other income:
Interest income	4,149	3,522
Accretion (amortization) of investments	2,479	3,507
Change in fair value of short-term investment — related party	432	(485)
Other income, net	148	41
Total other income, net	7,208	6,585
Net loss attributable to common stockholders, basic	(201,142)	(195,882)
Net loss attributable to common stockholders, diluted	$ (201,142)	$ (195,882)
Net loss per share attributable to common stockholders, basic (in dollars per share)	$ (1.35)	$ (1.65)
Net loss per share attributable to common stockholders, diluted (in dollars per share)	$ (1.35)	$ (1.65)
Weighted-average common shares outstanding, diluted (in shares)	148,758,527	118,600,381
Weighted-average common shares outstanding, basic (in shares)	148,758,527	118,600,381
Comprehensive loss:
Net loss	$ (201,142)	$ (195,882)
Change in unrealized loss on investments, net of tax	81	16
Comprehensive loss	(201,061)	(195,866)
Related Party
Revenue:
Collaboration revenue	4,586	1,609
Nonrelated Party
Revenue:
Collaboration revenue	$ 46	$ 1,374