<SEC-DOCUMENT>0002029405-26-000001.txt : 20260313
<SEC-HEADER>0002029405-26-000001.hdr.sgml : 20260313
<ACCEPTANCE-DATETIME>20260313180618
ACCESSION NUMBER:		0002029405-26-000001
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260313
FILED AS OF DATE:		20260313
DATE AS OF CHANGE:		20260313

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Melgar Lourdes
		CENTRAL INDEX KEY:			0002029405
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14946
		FILM NUMBER:		26753778

	MAIL ADDRESS:	
		STREET 1:		BEECH HILL
		STREET 2:		CLONSKEAGH
		CITY:			DUBLIN 4
		STATE:			L2
		ZIP:			D04 N2R2

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CEMEX SAB DE CV
		CENTRAL INDEX KEY:			0001076378
		STANDARD INDUSTRIAL CLASSIFICATION:	CEMENT, HYDRAULIC [3241]
		ORGANIZATION NAME:           	04 Manufacturing
		EIN:				000000000
		STATE OF INCORPORATION:			O5
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		AVE. CONSTITUTION 444 PTE
		CITY:			MONTERREY, NUEVO LEON
		STATE:			O5
		ZIP:			64000
		BUSINESS PHONE:		52(81)83283000

	MAIL ADDRESS:	
		STREET 1:		AVE. CONSTITUTION 444 PTE
		CITY:			MONTERREY, NUEVO LEON
		STATE:			O5
		ZIP:			64000

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CEMEX SA DE CV
		DATE OF NAME CHANGE:	19990810
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2026-03-13</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001076378</issuerCik>
        <issuerName>CEMEX SAB DE CV</issuerName>
        <issuerTradingSymbol>CX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002029405</rptOwnerCik>
            <rptOwnerName>Melgar Lourdes</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>BEECH HILL</rptOwnerStreet1>
            <rptOwnerStreet2>CLONSKEAGH</rptOwnerStreet2>
            <rptOwnerCity>DUBLIN 4</rptOwnerCity>
            <rptOwnerState>L2</rptOwnerState>
            <rptOwnerZipCode>D04 N2R2</rptOwnerZipCode>
            <rptOwnerStateDescription>IRELAND</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <ownerSignature>
        <signatureName>Maria de Lourdes Melgar Palacios</signatureName>
        <signatureDate>2026-03-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
