Marketable securities

9 Months Ended

Sep. 30, 2024

Marketable securities as of September 30, 2024 consisted of the following (in thousands):


	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Marketable securities, current:
Corporate debt securities	$	161,256	$	342	$	(33)	$	161,565
U.S. Treasury securities	23,233		28		—		23,261
U.S. government debt securities	11,160		9		(2)		11,167
Marketable securities, non-current:
Corporate debt securities	27,297		120		(10)		27,407
U.S. government debt securities	1,350		1		—		1,351

Total marketable securities, current and non-current	$	224,296	$	500	$	(45)	$	224,751

Marketable securities as of December 31, 2023 consisted of the following (in thousands):


	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Marketable securities, current:
Corporate debt securities	$	100,903	$	16	$	(221)	$	100,698
U.S. government debt securities	20,457		14		(43)		20,428
U.S. Treasury securities	5,965		1		—		5,966
Marketable securities, non-current:
Corporate debt securities	27,901		120		(14)		28,007


Total marketable securities, current and non-current	$	155,226	$	151	$	(278)	$	155,099

Marketable securities classified as current have maturities of less than one year and are classified as available-for-sale. Marketable securities classified as non-current are those that: (i) have a maturity of greater than one year, and (ii) are not intended to be liquidated within the next twelve months, although these funds are available for use and, therefore, are classified as available-for-sale. No available-for-sale debt securities held as of September 30, 2024 or December 31, 2023 had remaining maturities greater than five years.

Based on factors such as historical experience, market data, issuer-specific factors, and current economic conditions, the Company did not record an allowance for credit losses at September 30, 2024 and December 31, 2023, related to these securities.