<SEC-DOCUMENT>0000950157-18-001002-index.html : 20180925
<SEC-HEADER>0000950157-18-001002.hdr.sgml : 20180925
<ACCEPTANCE-DATETIME>20180925171640
ACCESSION NUMBER:		0000950157-18-001002
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20180925
ITEM INFORMATION:		Entry into a Material Definitive Agreement
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20180925
DATE AS OF CHANGE:		20180925

FILER:

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

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12744
		FILM NUMBER:		181086327

	BUSINESS ADDRESS:	
		STREET 1:		2710 WYCLIFF ROAD
		CITY:			RALEIGH
		STATE:			NC
		ZIP:			27607
		BUSINESS PHONE:		919-781-4550

	MAIL ADDRESS:	
		STREET 1:		2710 WYCLIFF ROAD
		CITY:			RALEIGH
		STATE:			NC
		ZIP:			27607
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>form8k.htm
<DESCRIPTION>CURRENT REPORT
<TEXT>
Document 1 - file: form8k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.1
<SEQUENCE>2
<FILENAME>ex10-1.htm
<DESCRIPTION>TENTH AMENDMENT TO CREDIT AND SECURITY AGREEMENT
<TEXT>
Document 2 - file: ex10-1.htm

</DOCUMENT>
</SEC-DOCUMENT>