Fair Value Measurements

3 Months Ended

Mar. 31, 2022

Fair Value Disclosures [Abstract]

Fair Value Measurements

5. Fair Value Measurements

As of March 31, 2022 and December 31, 2021, the Company’s financial instruments consisted of cash, cash equivalents, available-for-sale marketable securities, accounts receivable – related party, prepaid expenses, restricted cash, accounts payable and accrued liabilities. The fair values of cash, cash equivalents, accounts receivable – related party, prepaid expenses, restricted cash, accounts payable and accrued liabilities approximate their carrying values due to the short-term nature of these financial instruments. Available-for-sale marketable securities are reported at their fair values, based upon pricing of securities with the same or similar investment characteristics as provided by third-party pricing services.

The Company validates the prices provided by its third-party pricing services by reviewing their pricing methods, obtaining market values from other pricing sources, and comparing them to the share prices presented by the third-party pricing services. After completing its validation procedures, the Company did not adjust or override any fair value measurements provided by its third-party pricing services as of March 31, 2022 or December 31, 2021.

The following tables summarize the Company’s financial assets measured at fair value on a recurring basis as of March 31, 2022 and December 31, 2021.

Fair value measurement as of March 31, 2022:

			Quoted prices in		Significant other		Significant
Financial assets			active markets for		observable		unobservable
			identical assets		inputs		inputs
Type of Instrument	Total		(Level 1)		(Level 2)		(Level 3)
Cash and cash equivalents:
Money market funds and checking accounts	$	21,362	$	21,362	$	—	$	—
Available-for-sale marketable securities:
U.S. Treasury securities		15,550		—		15,550		—
U.S. government agency obligations		11,630		—		11,630		—
Corporate bonds		66,025		—		66,025		—
Commercial paper		72,789		—		72,789		—
Municipal bonds		22,211		—		22,211		—
Restricted cash:
Commercial money market account		408		408		—		—
Total financial assets	$	209,975	$	21,770	$	188,205	$	—

Fair value measurement as of December 31, 2021:

			Quoted prices in		Significant other		Significant
Financial assets			active markets for		observable		unobservable
			identical assets		inputs		inputs
Type of Instrument	Total		(Level 1)		(Level 2)		(Level 3)
Cash and cash equivalents:
Money market funds and checking accounts	$	13,453	$	13,453	$	—	$	—
Available-for-sale marketable securities:
U.S. Treasury securities		11,570		—		11,570		—
U.S. government agency obligations		16,975		—		16,975		—
Corporate bonds		66,324		—		66,324		—
Commercial paper		106,888		—		106,888		—
Municipal bonds		21,579		—		21,579		—
Restricted cash:
Commercial money market account		408		408		—		—
Total financial assets	$	237,197	$	13,861	$	223,336	$	—

There were no purchases, sales or maturities of Level 3 financial assets and no unrealized gains or losses related to Level 3 available-for-sale marketable securities during the three months ended March 31, 2022 and 2021, respectively. There were no transfers of financial assets into or out of Level 3 classification during the three months ended March 31, 2022 and 2021, respectively.