Segment information (Tables)

3 Months Ended

Mar. 31, 2026

Schedule of Significant Segment Expenses

The following information represents significant segment expenses regularly provided to the CODM with the following categories (in thousands):


	Three months ended March 31,
	2026			2025
Collaboration revenue	$	3,227		$	1,447
Direct external research and development expenses:
Discovery and development		(2,559	)		(3,718	)
[225Ac]Ac-AKY-1189		(3,745	)		(2,907	)
[225Ac]Ac-AKY-2519		(2,985	)		(755	)
Unallocated research and development expenses:
Employee-related (including stock-based compensation)		(7,390	)		(5,296	)
Information technology, facilities, office and other 1		(3,357	)		(3,187	)
General and administrative expenses:
Employee-related (including stock-based compensation)		(3,424	)		(1,995	)
Professional and consulting		(1,917	)		(1,351	)
Information technology, facilities, office and other 1		(556	)		(381	)
Other segment items 2		4,381			3,158
Net loss	$	(18,325	)	$	(14,985	)

Information technology, facilities, office and other includes depreciation and amortization.

Other segment items consist of interest income and other expense, net. Interest income consists of interest earned on cash equivalents and marketable securities and amortization or accretion of discounts or premiums on marketable securities. Other expense, net consists of gains and losses on currency revaluation related to the payment of foreign vendor invoices.