Adaptimmune Annual report [Section 13 and 15(d), not S-K Item 405]

Annual report [Section 13 and 15(d), not S-K Item 405]

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Restructuring programs (Tables)

v3.25.1

Restructuring programs (Tables)

12 Months Ended

Dec. 31, 2024

Restructuring Programs

Schedule of amounts incurred in relation to the redundancy programme



		Contractual termination benefits		One-time employee termination benefits		Total restructuring cost
Amount incurred in the year ended, and cumulative amount incurred to, December 31, 2024	$	4,102	$	1,809	$	5,911
Remaining amount expected to be incurred in future periods		—		1,938		1,938
Total amount expected to be incurred	$	4,102	$	3,747	$	7,849


			One-time
	Contractual		employee		Total
	termination		termination		restructuring
	benefits		benefits		costs
Cumulative amount incurred to December 31, 2022	$	1,171	$	1,114	$	2,285
Amount incurred in the year ended December 31, 2023		778		925		1,703
Total amount and cumulative amount incurred to December 31, 2023	$	1,949	$	2,039	$	3,988

Schedule of changes in the restructuring provision



		Contractual termination benefits		One-time employee termination benefits		Total restructuring provision

Liability at December 31, 2023	$	—	$	—	$	—
Costs incurred and charged to selling, general and administrative expenses		4,130		1,820		5,950
Effects of foreign exchange rates		(28)		(11)		(39)
Liability at December 31, 2024	$	4,102	$	1,809	$	5,911

Schedule of amounts incurred in relation to redundancies


	Year ended
	December 31, 2023

Severance and other cash payments	$	5,655

Accelerated vesting of share-based compensation awards							1,032
Total and cumulative amount incurred						$	6,687

Summary of changes in the liability in the Consolidated Balance Sheet



	2024		2023

Liability at January 1, 2024 and June 1, 2023	$	573		$	805
Costs incurred and charged to Research and development expenses		—			1,267
Costs incurred and charged to Selling, general and administrative expenses		—			4,388
Costs paid during the period		(573)			(5,887)
Total liability at December 31	$	—		$	573

- Definition

Tabular disclosure of expected costs to be incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets.

+ References

No definition available.

+ Details

Name:	adap_RestructuringAndRelatedCostsExpectToBeIncurredTableTextBlock
Namespace Prefix:	adap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

- Definition

Tabular disclosure of changes in the liability in the Consolidated Balance Sheet.

+ References

No definition available.

+ Details

Name:	adap_ScheduleOfChangesInLiabilityInConsolidatedBalanceSheet
Namespace Prefix:	adap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

Name:	us-gaap_RestructuringAndRelatedActivitiesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Tabular disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 420
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.P.3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479823/420-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 420
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.P.4)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482017/420-10-50-1

+ Details

Name:	us-gaap_ScheduleOfRestructuringAndRelatedCostsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

- Definition

Tabular disclosure of an entity's restructuring reserve that occurred during the period associated with the exit from or disposal of business activities or restructurings for each major type of cost. This element may also include a description of any reversal and other adjustment made during the period to the amount of an accrued liability for restructuring activities. This element may be used to encapsulate the roll forward presentations of an entity's restructuring reserve by type of cost and in total, and explanation of changes that occurred in the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 420
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.P.4.b.2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482017/420-10-50-1

+ Details

Name:	us-gaap_ScheduleOfRestructuringReserveByTypeOfCostTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration