<SEC-DOCUMENT>0000916076-24-000001.txt : 20240215
<SEC-HEADER>0000916076-24-000001.hdr.sgml : 20240215
<ACCEPTANCE-DATETIME>20240215085332
ACCESSION NUMBER:		0000916076-24-000001
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20240215
DATE AS OF CHANGE:		20240215

SUBJECT COMPANY:	

	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

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-12744
		FILM NUMBER:		24642317

	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

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LaTorre Craig M
		CENTRAL INDEX KEY:			0001776295
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		2710 WYCLIFF ROAD
		CITY:			RALEIGH
		STATE:			NC
		ZIP:			27607
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
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<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001776295</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>


    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0000916076</issuerCik>
      <issuerName>MARTIN MARIETTA MATERIALS INC</issuerName>
      <secFileNumber>001-12744</secFileNumber>
      <issuerAddress>
        <com:street1>4123 PARKLAKE AVE</com:street1>
        <com:city>RALEIGH</com:city>
        <com:stateOrCountry>NC</com:stateOrCountry>
        <com:zipCode>27612</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>919-781-4550</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>LaTorre Craig M</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Former Sr. VP, CHRO</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Martin Marietta Materials, Inc.</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Fidelity Investments</name>
        <address>
          <com:street1>100 Summer Street</com:street1>
          <com:city>Boston</com:city>
          <com:stateOrCountry>MA</com:stateOrCountry>
          <com:zipCode>02210</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>1667</noOfUnitsSold>
      <aggregateMarketValue>899279.82</aggregateMarketValue>
      <noOfUnitsOutstanding>61807161</noOfUnitsOutstanding>
      <approxSaleDate>02/15/2024</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <acquiredDate>12/01/2022</acquiredDate>
      <natureOfAcquisitionTransaction>Distribution of stock units awarded pursuant to the Martin Marietta Incentive Stock Plan</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Martin Marietta Materials, Inc.</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>288</amountOfSecuritiesAcquired>
      <paymentDate>12/01/2022</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <acquiredDate>02/14/2022</acquiredDate>
      <natureOfAcquisitionTransaction>Vesting and Distribution of Restricted Stock Units</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Martin Marietta Materials, Inc.</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>1379</amountOfSecuritiesAcquired>
      <paymentDate>02/14/2022</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>02/15/2024</noticeDate>
      <signature>Roselyn R. Bar, Attorney-in-Fact</signature>
    </noticeSignature>
  </formData>
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</SEC-DOCUMENT>
