Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2021

Summary of Cash and Cash Equivalents, Money Market Funds and Short-term Investments by Significant Investment Category

The following tables show the Company’s cash and cash equivalents, Money Market Funds and short-term investments by significant investment category as of June 30, 2021 and December 31, 2020 (in thousands):


	As of June 30, 2021
	Adjusted Cost		Unrealized Gains		Unrealized Losses		Market Value
Level 1:
Money Market Funds	$	23,568	$	—	$	—	$	23,568
Level 2:
U.S. Treasury securities included in short-term investments	7,532		1		—		7,533
U.S. government agency securities included in cash and cash equivalents and short-term investments	19,028		5		—		19,033
Corporate debt securities included in cash and cash equivalents and short-term investments	183,684		11		(47)		183,648
Total financial assets	$	233,812	$	17	$	(47)	$	233,782


	As of December 31, 2020
	Adjusted Cost		Unrealized Gains		Unrealized Losses		Market Value
Level 1:
Money Market Funds	$	27,686	$	—	$	—	$	27,686
Level 2:
U.S. Treasury securities included in short-term investments	63,101		4		(1)		63,104
U.S. government agency securities included in cash and cash equivalents and short-term investments	54,183		10		—		54,193
Corporate debt securities included in cash and cash equivalents and short-term investments	118,759		1		(46)		118,714
Total financial assets	$	263,729	$	15	$	(47)	$	263,697