Fair Value Measurements

3 Months Ended

Mar. 31, 2024

3. Fair Value Measurements

The following tables present information about the Company’s financial assets measured at fair value on a recurring basis and indicates the level of the fair value hierarchy utilized to determine such fair values as of March 31, 2024 and December 31, 2023 (in thousands):


	Fair Value Measurements at March 31, 2024:
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents
Money market fund	$	50,248	$	—	$	—	$	50,248
US treasuries		19,928		—		—		19,928
Corporate bonds		19,666		—		—		19,666
Marketable securities, current
US treasuries		167,206		—		—		167,206
US government agencies		—		106,672		—		106,672
Corporate bonds		—		153,157		—		153,157
Marketable securities, non-current
US treasuries		20,365		—		—		20,365
US government agencies		—		36,278		—		36,278
Corporate bonds		—		167,746		—		167,746
Restricted cash		5,825		—		—		5,825
Total	$	283,238	$	463,853	$	—	$	747,091


	Fair Value Measurements at December 31, 2023:
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents
Money market fund	$	78,010	$	—	$	—	$	78,010
US treasuries		27,985				—		27,985
Commercial Paper		997				—		997
Marketable securities, current
US treasuries		23,253		—		—		23,253
US government agencies		—		114,384		—		114,384
Corporate bonds		—		127,278		—		127,278
Marketable securities, non-current
US treasuries		—		—		—		-
US government agencies		—		28,307		—		28,307
Corporate bonds		—		33,127		—		33,127
Restricted cash		5,811		—		—		5,811
Total	$	136,056	$	303,096	$	—	$	439,152

During the three months ended March 31, 2024 and the year ended December 31, 2023, there were no transfers in or out of Level 3.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

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