The Company’s investments in debt securities are carried at fair value and classified as current assets available-for-sale and represent the investment of funds available for current operations. Accretion of bond discount and interest income on marketable securities is included in other income as a separate component of other income (expense) on the statement of operations and comprehensive loss. Unrealized gains and losses on available-for-sale debt securities are included in other comprehensive income or loss, and charged to income or expense in the period when realized. The following tables summarize the gross unrealized gains and losses of the Company’s available-for-sale securities (in thousands):


	As of June 30, 2024
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Market Value
Available-for-sale securities:
U.S. treasury securities	$	53,558	$	—	$	(13	)	$	53,545
Total	$	53,558	$	—	$	(13	)	$	53,545

         
        As of December 31, 2023

         
        Amortized
Cost

        Gross 
Unrealized 
Gains

        Gross 
Unrealized
Losses

        Fair 
Market
Value


Available-for-sale securities:
U.S. treasury securities	$	75,324	$	8	$	(1	)	$	75,331
Total	$	75,324	$	8	$	(1	)	$	75,331

As of June 30, 2024, the Company considered the unrealized losses in its investment portfolio to be temporary in nature and not due to credit losses. The Company has the intent and ability to hold such investments until their recovery at fair value. The Company did not have any realized gains or losses in its available for sale securities during the three and six months ended June 30, 2024 and 2023.