<SEC-DOCUMENT>0001127602-25-006529.txt : 20250225
<SEC-HEADER>0001127602-25-006529.hdr.sgml : 20250225
<ACCEPTANCE-DATETIME>20250225132623
ACCESSION NUMBER:		0001127602-25-006529
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20250220
FILED AS OF DATE:		20250225
DATE AS OF CHANGE:		20250225

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KOHN BRADLEY D
		CENTRAL INDEX KEY:			0001339198
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12744
		FILM NUMBER:		25661360

	MAIL ADDRESS:	
		STREET 1:		C/O MEMC ELECTRONIC MATERIALS INC.
		STREET 2:		PO BOX 8
		CITY:			ST PETERS
		STATE:			MO
		ZIP:			63376

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MARTIN MARIETTA MATERIALS INC
		CENTRAL INDEX KEY:			0000916076
		STANDARD INDUSTRIAL CLASSIFICATION:	MINING, QUARRYING OF NONMETALLIC MINERALS (NO FUELS) [1400]
		ORGANIZATION NAME:           	01 Energy & Transportation
		IRS NUMBER:				561848578
		STATE OF INCORPORATION:			NC
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		4123 PARKLAKE AVE
		CITY:			RALEIGH
		STATE:			NC
		ZIP:			27612
		BUSINESS PHONE:		919-781-4550

	MAIL ADDRESS:	
		STREET 1:		4123 PARKLAKE AVE
		CITY:			RALEIGH
		STATE:			NC
		ZIP:			27612
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>form3.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2025-02-20</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000916076</issuerCik>
        <issuerName>MARTIN MARIETTA MATERIALS INC</issuerName>
        <issuerTradingSymbol>MLM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001339198</rptOwnerCik>
            <rptOwnerName>KOHN BRADLEY D</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>4123 PARKLAKE AVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>RALEIGH</rptOwnerCity>
            <rptOwnerState>NC</rptOwnerState>
            <rptOwnerZipCode>27612</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isOfficer>1</isOfficer>
            <officerTitle>SVP, General Counsel and Secy</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2644</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents unvested restricted stock units granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan. 2,644 restricted stock units were awarded on December 23, 2024, which award vests in two installments with two-thirds vesting on the third anniversary of the award date and 1/3 vesting on the fourth anniversary of the award date, subject to continued employment and other terms and conditions specified in the award agreement.</footnote>
    </footnotes>

    <remarks>Exhibit 24.1 - Power of Attorney</remarks>

    <ownerSignature>
        <signatureName>/s/ Bradley D. Kohn</signatureName>
        <signatureDate>2025-02-25</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>doc1.txt
<DESCRIPTION>POWER OF ATTORNEY (PUBLIC): POWER OF ATTORNEY
<TEXT>
BRADLEY D. KOHN
LIMITED POWER OF ATTORNEY FOR
SECTION 16 REPORTING OBLIGATIONS

     Know all by these presents, that the undersigned hereby
makes, constitutes and appoints Sara W. Brown as the
undersigned's true and lawful attorney-in-fact, with full
power and authority as hereinafter described on behalf of and
in the name, place and stead of the undersigned to:

     (1)  prepare, execute, acknowledge, deliver and file
Forms 3, 4, and 5 (including any amendments thereto and
including any Forms 144) with respect to the securities of
Martin Marietta Materials, Inc. a North Carolina corporation
(the "Company"), with the United States Securities and
Exchange Commission, any national securities exchanges and the
Company, as considered necessary or advisable under
Section 16(a) of the Securities Exchange Act of 1934 and the
rules and regulations promulgated thereunder, as amended from
time to time (the "Exchange Act");

     (2)  seek or obtain, as the undersigned's representative
and on the undersigned's behalf, information on transactions
in the Company's securities from any third party, including
brokers, employee benefit plan administrators and trustees,
and the undersigned hereby authorizes any such person to
release any such information to the undersigned and approves
and ratifies any such release of information; and

     (3)  perform any and all other acts which in the
discretion of such attorney-in-fact are necessary or desirable
for and on behalf of the undersigned in connection with the
foregoing.

The undersigned acknowledges that:

     (1)  this Power of Attorney authorizes, but does not
require, such attorney-in-fact to act in her discretion
on information provided to such attorney-in-fact without
independent verification of such information;

     (2)  any documents prepared and/or executed by
such attorney-in-fact on behalf of the undersigned pursuant to
this Power of Attorney will be in such form and will contain
such information and disclosure as such attorney-in-fact, in
her discretion, deems necessary or desirable;

     (3)  neither the Company nor such attorney-in-
fact assumes (i) any liability for the undersigned's
responsibility to comply with the requirement of the Exchange
Act, (ii) any liability of the undersigned for any failure to
comply with such requirements, or (iii) any obligation or
liability of the undersigned for profit disgorgement under
Section 16(b) of the Exchange Act; and

     (4)  this Power of Attorney does not relieve the
undersigned from responsibility for compliance with the
undersigned's obligations under the Exchange Act, including
without limitation the reporting requirements under Section 16
of the Exchange Act.

     The  undersigned hereby gives and grants the
foregoing attorney-in-fact full power and authority to do and
perform all and every act and thing whatsoever requisite,
necessary or appropriate to be done in and about the foregoing
matters as fully to all intents and purposes as the
undersigned might or could do if present, hereby ratifying all
that each such attorney-in-fact of, for and on behalf of the
undersigned, shall lawfully do or cause to be done by virtue
of this Limited Power of Attorney.

     This Power of Attorney shall remain in full force and
effect until revoked by the undersigned in a signed writing
delivered to such attorney-in-fact.

     IN WITNESS WHEREOF, the undersigned has caused this Power
of Attorney to be executed as of this 29th day of January, 2025.


                         _/s/_Bradley_D._Kohn_______
                         Bradley D. Kohn


</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
