    <SEC-DOCUMENT>0001308179-25-000367-index.html : 20250403
    <SEC-HEADER>0001308179-25-000367.hdr.sgml : 20250403
    <ACCEPTANCE-DATETIME>20250403160401
    ACCESSION NUMBER:		0001308179-25-000367
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		4
    FILED AS OF DATE:		20250403
    DATE AS OF CHANGE:		20250403

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			MATTEL INC /DE/
    		CENTRAL INDEX KEY:			0000063276
    		STANDARD INDUSTRIAL CLASSIFICATION:	DOLLS & STUFFED TOYS [3942]
    		ORGANIZATION NAME:           	04 Manufacturing
    		EIN:				951567322
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-05647
    		FILM NUMBER:		25809308

    	BUSINESS ADDRESS:
    		STREET 1:		333 CONTINENTAL BLVD
    		CITY:			EL SEGUNDO
    		STATE:			CA
    		ZIP:			90245
    		BUSINESS PHONE:		3102522000

    	MAIL ADDRESS:
    		STREET 1:		333 CONTINENTAL BLVD
    		CITY:			EL SEGUNDO
    		STATE:			CA
    		ZIP:			90245
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>mattel2025noticeandaccess.htm
    <DESCRIPTION>DEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALS
    <TEXT>
    Document 1 - file: mattel2025noticeandaccess.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>mat2024_def14cover.jpg
    <TEXT>
    Document 2 - file: mat2024_def14cover.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>notice-andxaccess_1.jpg
    <TEXT>
    Document 3 - file: notice-andxaccess_1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>notice-andxaccess_2.jpg
    <TEXT>
    Document 4 - file: notice-andxaccess_2.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>