from 10-Q 68 pages ​ Certain Confidential Information Contained in This Document, Marked by [***], Has Been Omitted Because It Is Both (I) Not Material and (II) Is the Type That the Registrant Treats as Private or Confidential. Asset Purchase Agreement Between Blueprint Medicines Corporation and Rigel Pharmaceuticals, Inc. Dated as of February 22, 2024

from 10-Q 2 pages Certain Confidential Information Contained in This Document, Marked by [***], Has Been Omitted Because It Is Both (I) Not Material and (II) Is the Type That the Registrant Treats as Private or Confidential. ​ ​ Amendment No. 2 to the License and Collaboration Agreement ​

from 10-Q 17 pages ​ Certain Confidential Information Contained in This Document, Marked by [***], Has Been Omitted Because It Is Both (I) Not Material and (II) Is the Type That the Registrant Treats as Private or Confidential

from 10-Q 13 pages Rigel Pharmaceuticals, Inc. Inducement Plan Adopted by the Compensation Committee: October 10, 2016 Amended by the Compensation Committee: January 3, 2017 Amended by the Compensation Committee: August 16, 2017 Amended by the Compensation Committee: November 7, 2017 Amended by the Compensation Committee: December 23, 2017 Amended by the Compensation Committee: January 24, 2018 Amended by the Compensation Committee: August 19, 2020 Amended by the Compensation Committee: September 30, 2021 Amended by the Compensation Committee: January 4, 2022 Amended by the Compensation Committee: April 4, 2022 Amended by the Compensation Committee: December 8, 2022 Amended by the Compensation Committee: April 4, 2023 Amended by the Compensation Committee: June 29, 2023 Amended by the Compensation Committee: October 3, 2023 Amended by the Compensation Committee: December 26, 2023 Amended by the Compensation Committee: March 26, 2024 Amended by the Compensation Committee: April 4, 2024 ​

from 10-Q ~5 pages Management certification of annual or quarterly disclosure

from 10-Q ~5 pages Management certification of annual or quarterly disclosure

from 10-Q 1 page Management certification of financial report

from 10-Q rigl-20240331x10q004.jpg