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Segment Reporting (Tables)

6 Months Ended

Jun. 30, 2025

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

			Three Months Ended June 30,												Six Months Ended June 30,
			2025						2024						2025						2024
			(in thousands)
Revenue			$	10,739					$	1,726					$	12,503					$	3,258
Less:
Research and development employee expense, lab supplies and overhead			2,297						6,908						6,733						14,008
Imdusiran IM-PROVE I, II & III clinical trials expense			1,405						4,010						3,789						9,399
AB-101-001 Phase 1a/1b clinical trial expense			1,738						3,186						3,637						5,996
Other early research and development programs expense			58						1,447						298						1,551
General and administrative expense			3,328						7,547						9,160						12,859
Restructuring expense			165						—						12,538						—
Other segment expense (1)			267						253						590						490
Add:
Interest income			1,042						1,829						2,239						3,374
Segment net income (loss)			$	2,523					$	(19,796)					$	(22,003)					$	(37,671)
Adjustments and reconciling items			—						—						—						—
Consolidated net income (loss)			$	2,523					$	(19,796)					$	(22,003)					$	(37,671)

(1) Other segment expense includes the change in the fair value of contingent consideration, non-cash interest expenses and foreign currency exchange gains and losses.

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- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 25
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-25

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-22

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-30

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X

- References

No definition available.

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