Adaptimmune Quarterly report [Sections 13 or 15(d)]

Quarterly report [Sections 13 or 15(d)]

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

Marketable securities - Available-for-sale debt securities (Details)

v3.25.1

Marketable securities - Available-for-sale debt securities (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2025 USD ($)
Marketable securities
Amortized cost	$ 9,193
Aggregate estimated fair value	9,193
Cash equivalents \| Corporate debt securities, Less than 3 months
Marketable securities
Amortized cost	2,205
Aggregate estimated fair value	$ 2,205
Cash equivalents \| Corporate debt securities, Less than 3 months \| Maximum
Marketable securities
Available for sale securities debt maturity period	3 months
Cash equivalents \| U.S. Treasury securities, Less than 3 months
Marketable securities
Amortized cost	$ 6,988
Aggregate estimated fair value	$ 6,988
Cash equivalents \| U.S. Treasury securities, Less than 3 months \| Maximum
Marketable securities
Available for sale securities debt maturity period	3 months
Marketable Securities
Marketable securities
Amortized cost	$ 18,512
Gross unrealized losses	(3)
Aggregate estimated fair value	18,509
Marketable Securities \| Corporate debt securities, Less than 3 months
Marketable securities
Amortized cost	6,582
Gross unrealized losses	(2)
Aggregate estimated fair value	$ 6,580
Marketable Securities \| Corporate debt securities, Less than 3 months \| Maximum
Marketable securities
Available for sale securities debt maturity period	3 months
Marketable Securities \| U.S. Treasury securities, Less than 3 months
Marketable securities
Amortized cost	$ 11,930
Gross unrealized losses	(1)
Aggregate estimated fair value	$ 11,929
Marketable Securities \| U.S. Treasury securities, Less than 3 months \| Maximum
Marketable securities
Available for sale securities debt maturity period	3 months

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