Rigel Pharmaceuticals, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Cover
- DOCUMENT AND ENTITY INFORMATION
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Stock-Based Compensation - Options and RSUs (Details)

v3.21.1

Stock-Based Compensation - Options and RSUs (Details) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended
	Jan. 31, 2021 shares	Mar. 31, 2021 USD ($) item $ / shares shares	Mar. 31, 2020 USD ($)
Stock Based Compensation
Share-based compensation \| $		$ 2,639	$ 2,024
Additional disclosures
Shares of common stock available for grant		9,702,519
2018 Plan
Additional disclosures
Additional shares approved	825,000
Employee stock option
Stock Based Compensation
Number of homogenous groups for purposes of determining fair values of options \| item		3
Contractual term of the option		10 years
Weighted-average assumptions relating to options granted
Risk-free interest rate (as a percent)		1.00%	1.30%
Expected term (in years)		6 years 6 months	6 years 6 months
Dividend yield (as a percent)		0.00%	0.00%
Expected volatility (as a percent)		70.60%	65.40%
Additional disclosures
Options granted (in shares)		5,339,981
Options outstanding		30,902,155
Grant-date weighted-average fair value (in dollars per share) \| $ / shares		$ 2.32
Options exercised during the period (in shares)		813,854
Employee stock option \| Vesting upon achievement of corporate performance-based milestones
Additional disclosures
Options outstanding		2,018,125
Total unrecognized compensation costs \| $		$ 4,200
Employee stock option \| Consultant
Stock Based Compensation
Contractual term of the option		10 years
Restricted stock units
Additional disclosures
Granted (in shares)		52,000
Weighted average fair value (in dollars per share) \| $ / shares		$ 3.77
Vesting period		2 years
Share based compensation options and RSUs
Additional disclosures
Total unrecognized compensation costs \| $		$ 18,200
Weighted-average recognition period of unamortized compensation cost		2 years 4 months 13 days

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