v3.26.1
LIABILITIES RELATED TO THE SALE OF FUTURE ROYALTIES AND DEVELOPMENT FUNDING (Tables)
6 Months Ended
Jun. 30, 2026
Related Party Transactions [Abstract]  
Schedule of Fair Value, Liabilities
The following table shows the activity with respect to the vutrisiran development funding liability, in thousands:
Carrying value as of December 31, 2025
$194,153 
Interest expense
47,837 
Amount paid
(60,915)
Carrying value as of June 30, 2026
$181,075 
The following table shows the activity with respect to the zilebesiran development funding liability, in thousands:
Carrying value as of December 31, 2025
$17,047 
Interest expense
3,810 
Amount paid
(10,562)
Amount received
12,000 
Carrying value as of June 30, 2026
$22,295 
Schedule of Royalty Liability
The following table shows the activity with respect to the liability, in thousands:
Carrying value as of December 31, 2025
$1,479,209 
Interest expense
93,632 
Payments(56,131)
Carrying value as of June 30, 2026
$1,516,710