Rigel Pharmaceuticals, Inc. Announces Inducement Grant under NASDAQ Listing Rule 5635(c)(4)

SOUTH SAN FRANCISCO, Calif., Feb. 16, 2018 /PRNewswire/ -- Rigel Pharmaceuticals (Nasdaq: RIGL) today announced that on January 24, 2018 the Compensation Committee of Rigel's Board of Directors approved the grant of inducement stock options to purchase an aggregate of 30,000 shares of common stock to one new employee. This award was granted pursuant to the Rigel Pharmaceuticals, Inc. Inducement Plan, as amended, as an inducement material to the new employee entering into employment with Rigel, in accordance with NASDAQ Listing Rule 5635(c)(4).

Rigel granted stock options to purchase shares of Rigel's common stock to the employee with an exercise price of $3.79 per share, the closing price of Rigel's common stock on February 9, 2018, the first trading date prior to February 12, 2018, the effective date of such grant. The stock options vest as follows: the shares of common stock subject to the awards vest over a four year period, with one-fourth of the shares subject to such awards vesting on the first anniversary of the award's vesting commencement date.

Rigel is providing this information in accordance with NASDAQ Listing Rule 5635(c)(4).

About Rigel (www.rigel.com)

Rigel Pharmaceuticals, Inc. is a biotechnology company dedicated to discovering, developing and providing novel small molecule drugs that significantly improve the lives of patients with immune and hematological disorders, cancer and rare diseases. Rigel's pioneering research focuses on signaling pathways that are critical to disease mechanisms. The company's current clinical programs include clinical trials of fostamatinib, an oral spleen tyrosine kinase (SYK) inhibitor, in a number of indications. Rigel has submitted, and the FDA has accepted for review, an NDA for fostamatinib in patients with chronic or persistent immune thrombocytopenia (ITP). In addition, Rigel has product candidates in development with partners BerGenBio AS, Daiichi Sankyo and Aclaris Therapeutics.

Contact: Raul Rodriguez
Phone: 650.624.1302
Email: invrel@rigel.com

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SOURCE Rigel Pharmaceuticals, Inc.