Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Dec. 31, 2025
Current assets:
Cash and cash equivalents	$ 23,706	$ 18,008
Investments in marketable short-term securities	71,520	73,463
Accounts receivable	1,312	1,447
License receivable from Genevant	178,741	0
Prepaid expenses and other current assets	1,732	1,538
Total current assets	277,011	94,456
Property and equipment, net of accumulated depreciation and impairment of $224 (December 31, 2025: $213)	22	32
Other non-current assets	131	130
Total assets	277,164	94,618
Current liabilities:
Accounts payable and accrued liabilities	4,474	5,459
Lease liability, current	631	547
Total current liabilities	5,105	6,006
Liability related to sale of future royalties	3,278	3,442
Contingent consideration	8,604	8,395
Lease liability, non-current	0	199
Total liabilities	16,987	18,042
Stockholders’ equity
Issued and outstanding: 196,947,757 (December 31, 2025: 192,531,225)	1,444,494	1,421,429
Additional paid-in capital	74,256	83,318
Deficit	(1,210,378)	(1,380,073)
Accumulated other comprehensive loss	(48,195)	(48,098)
Total stockholders’ equity	260,177	76,576
Total liabilities and stockholders’ equity	$ 277,164	$ 94,618
Common Stock, Shares Authorized, Unlimited [Fixed List]	Unlimited