Marketable securities as of September 30, 2026 consisted of the following (in thousands):


	Amortized		Unrealized		Unrealized			Fair
	cost		gains		losses			value
Description
Corporate debt securities	$	270,931	$	9	$	(1,389	)	$	269,551
U.S. Treasury securities		263,977		—		(982	)		262,995
Total	$	534,908	$	9	$	(2,371	)	$	532,546

Marketable securities as of December 31, 2025 consisted of the following (in thousands):


	Amortized		Unrealized		Unrealized		Fair
	cost		gains		losses		value
Description
Corporate debt securities	$	99,543	$	53	$	—	$	99,596
U.S. Treasury securities		147,514		111		—		147,625
Total	$	247,057	$	164	$	—	$	247,221

As of September 30, 2026, unrealized gain and losses on marketable securities are recorded in accumulated other comprehensive loss in equity on the accompanying condensed consolidated balance sheet. The aggregate fair value of securities in a loss position was $514.4 million and $3.2 million as of September 30, 2026 and December 31, 2025, respectively. There were no realized gains or losses recognized on the sale or maturity of marketable securities for the three and nine months ended September 30, 2026 and 2025 and, as a result, the Company did not reclassify any amounts out of accumulated other comprehensive loss for the same periods.

The Company holds debt securities of companies with high credit quality and has determined that there was no material change in the credit risk of any of its debt securities. The Company also believes that it will be able to collect both principal and interest amounts due to it at maturity.