Fair Value Measurements

12 Months Ended

Dec. 31, 2020

4. Fair Value Measurements

The following tables present information about the Company’s financial assets and liabilities measured at fair value on a recurring basis:

	December 31, 2020
(in thousands)	Level 1		Level 2		Level 3		Total
Cash equivalents:
Money market fund	$	55,505	$	—	$	—	$	55,505
U.S. government treasury securities		39,998		—		—		39,998
Totals	$	95,503	$	—	$	—	$	95,503
Short-term investments:
U.S. government treasury securities	$	233,663	$	—	$	—	$	233,663
Totals	$	233,663	$	—	$	—	$	233,663

	December 31, 2019
(in thousands)	Level 1		Level 2		Level 3		Total
Cash equivalents:
Money market fund	$	46,407	$	—	$	—	$	46,407
Demand deposit		10,027		—		—		10,027
Totals	$	56,434	$	—	$	—	$	56,434
Short-term investments:
U.S. government treasury securities	$	64,993	$	—	$	—	$	64,993
Totals	$	64,993	$	—	$	—	$	64,993

During the years ended December 31, 2020 and 2019, there were no transfers between levels. The Company classifies its money market fund and U.S. government treasury securities as Level 1 assets under the fair value hierarchy, as these assets have been valued using quoted market prices in active markets without any valuation adjustment.

The carrying amounts of unbilled grants receivable, prepaid expenses and other current assets, accounts payable, amount due to related party and accrued expenses approximate their fair values due to the short-term nature of these assets and liabilities.

- 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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