Item 3.01 Notice of Delisting or Failure to Satisfy a Continued Listing Rule or

           Standard; Transfer of Listing.

On November 22, 2022, Rigel Pharmaceuticals, Inc. ("Rigel") received a deficiency letter from the Listing Qualifications Department (the "Staff") of the Nasdaq Stock Market LLC ("Nasdaq") notifying Rigel that, for the last 30 consecutive business days, the bid price for Rigel's common stock, par value $0.001 per share (the "Common Stock"), closed below the $1.00 per share minimum bid price requirement for continued inclusion on the Nasdaq Capital Market pursuant to Nasdaq Listing Rule 5450(a)(1) (the "Bid Price Requirement").

In accordance with Nasdaq Listing Rule 5810(c)(3)(A) (the "Compliance Period Rule"), Rigel has been provided a period of 180 calendar days, or until May 22, 2023 (the "Compliance Date"), to regain compliance with the Bid Price Requirement. If, at any time before the Compliance Date, the bid price for the Common Stock closes at $1.00 or more for a minimum of 10 consecutive business days, as required under the Compliance Period Rule, the Staff will provide written notification to Rigel that it has regained compliance with the Bid Price Requirement.

If Rigel does not regain compliance with the Bid Price Requirement by the Compliance Date, Rigel may be eligible for an additional 180 calendar day compliance period. To qualify, Rigel will be required to meet the continued listing requirement for market value of its publicly held shares and all other initial listing standards for the Nasdaq Capital Market, with the exception of the Bid Price Requirement, and will need to provide written notice of its intention to cure the deficiency during the second 180 calendar day compliance period, by effecting a reverse stock split, if necessary.

If Rigel does not regain compliance with the Bid Price Requirement by the Compliance Date and is not eligible for an additional compliance period at that time, or the Staff concludes that Rigel will not be able to cure the deficiency during the additional compliance period, the Staff will provide written notification to Rigel that its Common Stock will be subject to delisting. At that time, Rigel may appeal the Staff's delisting determination to a Nasdaq Hearings Panel. However, there can be no assurance that such appeal would be successful.

The notification received has no immediate effect on Rigel's Nasdaq listing. Rigel's Common Stock will continue to trade on Nasdaq under the symbol "RIGL" at this time.

Rigel intends to monitor the closing bid price of the Common Stock and may, if appropriate, consider available options to regain compliance with the Bid Price Requirement, which could include seeking to effect a reverse stock split. However, there can be no assurance that Rigel will be able to regain compliance with the Bid Price Requirement.

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