Adaptimmune Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Marketable securities - available-for-sale debt securities (Tables)

Marketable securities - available-for-sale debt securities (Tables)

3 Months Ended

Mar. 31, 2022

Marketable securities - available-for-sale debt securities

As of March 31, 2022, the Company has the following investments in marketable securities (in thousands):


				Gross		Gross		Aggregate
	Remaining	Amortized		unrealized		unrealized		estimated
	contractual maturity	cost		gains		losses		fair value
Available-for-sale debt securities:
Corporate debt securities	Less than 3 months	$	49,028	$	26	$	(10)	$	49,044
Corporate debt securities	3 months to 1 year		78,123		—		(623)		77,500
U.S. Treasury securities	3 months to 1 year		42,192		—		(48)		42,144
Agency bonds	1 year to 2 years		5,000		—		(110)		4,890
Corporate debt securities	1 year to 2 years		41,848		—		(747)		41,101
		$	216,191	$	26	$	(1,538)	$	214,679

Schedule of aggregate fair value and number of securities held by the Company in an unrealized loss position

The aggregate fair value (in thousands) and number of securities held by the Company (including those classified as cash equivalents) in an unrealized loss position as of March 31, 2022 and 31 December, 2021 are as follows:



	March 31, 2022						December 31, 2021
	Fair market value of investments in an unrealized loss position		Number of investments in an unrealized loss position		Unrealized losses		Fair market value of investments in an unrealized loss position		Number of investments in an unrealized loss position		Unrealized losses
Marketable securities in a continuous loss position for 12 months or longer:
Corporate debt securities	$	29,672		5	$	(275)	$	8,232		1		(35)

Marketable securities in a continuous loss position for less than 12 months:
Corporate debt securities	$	112,253		24	$	(1,105)	$	163,258		34	$	(348)
U.S. Treasury securities		42,144		9		(48)		—		—		—
Agency bond		4,890		1		(110)		4,993		1		(7)
	$	188,959		39	$	(1,538)	$	176,483		36	$	(390)