    <SEC-DOCUMENT>0001628280-24-016583-index.html : 20240417
    <SEC-HEADER>0001628280-24-016583.hdr.sgml : 20240417
    <ACCEPTANCE-DATETIME>20240417162216
    ACCESSION NUMBER:		0001628280-24-016583
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		4
    FILED AS OF DATE:		20240417
    DATE AS OF CHANGE:		20240417

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			MATTEL INC /DE/
    		CENTRAL INDEX KEY:			0000063276
    		STANDARD INDUSTRIAL CLASSIFICATION:	DOLLS & STUFFED TOYS [3942]
    		ORGANIZATION NAME:           	04 Manufacturing
    		IRS NUMBER:				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:		24851341

    	BUSINESS ADDRESS:
    		STREET 1:		333 CONTINENTAL BLVD
    		CITY:			EL SEGUNDO
    		STATE:			CA
    		ZIP:			90245
    		BUSINESS PHONE:		3102522000
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>mattelproxyna2024.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: mattelproxyna2024.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>a2024noticeandaccess_pagex1.jpg
    <TEXT>
    Document 2 - file: a2024noticeandaccess_pagex1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>a2024noticeandaccess_pagex2.jpg
    <TEXT>
    Document 3 - file: a2024noticeandaccess_pagex2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>mat21bg_logoxr01a.jpg
    <TEXT>
    Document 4 - file: mat21bg_logoxr01a.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>