The following tables provide information about the Company’s financial instruments that are measured at fair value on a recurring basis and indicate the fair value hierarchy of the valuation techniques utilized to determine such values as of September 30, 2022 and December 31, 2021:


	September 30, 2022
	Level 1		Level 2		Level 3		Total
	(in thousands)
Assets:
Cash equivalents:
Money market funds	$	8,025	$	—	$	—	$	8,025
Commercial paper	—		5,646		—		5,646
Total cash equivalents	8,025		5,646		—		13,671
Marketable securities:
Corporate debt securities	32,473		—		—		32,473
U.S. treasury securities	29,073		—		—		29,073
U.S. government agency bonds	24,955		—		—		24,955
Total marketable securities	86,501		—		—		86,501
Total assets at fair value	$	94,526	$	5,646	$	—	$	100,172


	December 31, 2021
	Level 1		Level 2		Level 3		Total
	(in thousands)
Assets:
Cash equivalents:
Money market funds	$	41,376	$	—	$	—	$	41,376
Commercial paper	—		12,098		—		12,098
Total cash equivalents	41,376		12,098		—		53,474
Marketable securities:
Corporate debt securities	55,921		—		—		55,921
U.S. treasury securities	37,190		—		—		37,190
U.S. government agency bonds	28,166		—		—		28,166
Total marketable securities	121,277		—		—		121,277
Total assets at fair value	$	162,653	$	12,098	$	—	$	174,751

The following tables summarize the cost, gross unrealized gains, gross unrealized losses and fair value of the marketable securities as of September 30, 2022 and December 31, 2021:


	September 30, 2022
	Cost or Amortized Cost		Unrealized				Fair Value
			Gains		Losses
	(in thousands)
Corporate debt securities	$	32,984	$	—	$	(511)	$	32,473
U.S. treasury securities	29,596		—		(523)		29,073
U.S. government agency bonds	25,553		—		(598)		24,955
Total	$	88,133	$	—	$	(1,632)	$	86,501