    <SEC-DOCUMENT>0000950170-23-012806-index.html : 20230414
    <SEC-HEADER>0000950170-23-012806.hdr.sgml : 20230414
    <ACCEPTANCE-DATETIME>20230414090055
    ACCESSION NUMBER:		0000950170-23-012806
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		3
    CONFORMED PERIOD OF REPORT:	20230607
    FILED AS OF DATE:		20230414
    DATE AS OF CHANGE:		20230414

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			IDEAYA Biosciences, Inc.
    		CENTRAL INDEX KEY:			0001676725
    		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
    		IRS NUMBER:				474268251
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-38915
    		FILM NUMBER:		23819896

    	BUSINESS ADDRESS:
    		STREET 1:		7000 SHORELINE COURT, SUITE 350
    		CITY:			SOUTH SAN FRANCISCO
    		STATE:			CA
    		ZIP:			94080
    		BUSINESS PHONE:		650-443-6209

    	MAIL ADDRESS:
    		STREET 1:		7000 SHORELINE COURT, SUITE 350
    		CITY:			SOUTH SAN FRANCISCO
    		STATE:			CA
    		ZIP:			94080

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	Ideaya Biosciences, Inc.
    		DATE OF NAME CHANGE:	20160609
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>idya-def_14a-2023.htm
    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: idya-def_14a-2023.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>img11151858_0.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: img11151858_0.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>img11151858_1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: img11151858_1.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>