EX-32.1 9 idya-ex32_1.htm EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Yujiro Hata, President and Chief Executive Officer of IDEAYA Biosciences, Inc. (the “Company”), hereby certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

(1)
The Annual Report on Form 10-K of the Company for the period ended December 31, 2023 (the “Report”) fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and
(2)
The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: February 20, 2024 | By: | /s/ Yujiro Hata
|  | Yujiro Hata
|  | President and Chief Executive Officer
|  | (Principal Executive Officer)

I, Andres Ruiz Briseno, Senior Vice President and Head of Finance and Investor Relations of IDEAYA Biosciences, Inc. (the “Company”), hereby certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

(1)
The Annual Report on Form 10-K of the Company for the period ended December 31, 2023 (the “Report”) fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and
(2)
The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: February 20, 2024 | By: | /s/ Andres Ruiz Briseno
|  | Andres Ruiz Briseno
|  | Senior Vice President and Head of Finance and Investor Relations
|  | (Principal Financial and Accounting Officer)