Rigel Pharmaceuticals, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS (Tables)

CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS (Tables)

12 Months Ended

Dec. 31, 2021

CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS

Schedule of cash, cash equivalents and short-term investments

Cash, cash equivalents and short-term investments consisted of the following (in thousands):


	December 31,
	2021		2020
Cash	$	6,249	$	1,988
Money market funds		6,842		19,487
U.S. treasury bills		35,366		10,034
Government-sponsored enterprise securities		14,678		4,920
Corporate bonds and commercial paper		61,832		20,898
	$	124,967	$	57,327
Reported as:
Cash and cash equivalents	$	18,890	$	30,373
Short-term investments		106,077		26,954
	$	124,967	$	57,327

Schedule of cash equivalents and short-term investments including securities with unrealized gains and losses

Cash equivalents and short-term investments include the following securities with gross unrealized gains and losses (in thousands):


			Gross		Gross
	Amortized		Unrealized		Unrealized
December 31, 2021	Cost		Gains		Losses		Fair Value
U.S. treasury bills	$	35,416	$	—	$	(50)	$	35,366
Government-sponsored enterprise securities		14,705		—		(27)		14,678
Corporate bonds and commercial paper		61,857		2		(27)		61,832
Total	$	111,978	$	2	$	(104)	$	111,876


			Gross		Gross
	Amortized		Unrealized		Unrealized
December 31, 2020	Cost		Gains		Losses		Fair Value
U.S. treasury bills	$	10,036	$	—	$	(2)	$	10,034
Government-sponsored enterprise securities		4,920		—		—		4,920
Corporate bonds and commercial paper		20,900		—		(2)		20,898
Total	$	35,856	$	—	$	(4)	$	35,852

Schedule of fair value and gross unrealized losses of investments in unrealized loss position

The following table shows the fair value and gross unrealized losses of our investments in individual securities that are in an unrealized loss position, aggregated by investment category (in thousands):


December 31, 2021	Fair Value		Unrealized Losses
U.S. treasury bills	$	35,366	$	(50)
Government-sponsored enterprise securities		14,678		(27)
Corporate bonds and commercial paper		37,993		(27)
Total	$	88,037	$	(104)