<SEC-DOCUMENT>0001564590-19-002661-index.html : 20190212
<SEC-HEADER>0001564590-19-002661.hdr.sgml : 20190212
<ACCEPTANCE-DATETIME>20190212153858
ACCESSION NUMBER:		0001564590-19-002661
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20190212
ITEM INFORMATION:		Results of Operations and Financial Condition
ITEM INFORMATION:		Regulation FD Disclosure
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20190212
DATE AS OF CHANGE:		20190212

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:		19590485

	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>mlm-8k_20190212.htm
<DESCRIPTION>MLM ER8-K 20181231
<TEXT>
Document 1 - file: mlm-8k_20190212.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>mlm-ex991_6.htm
<DESCRIPTION>EX-99.1
<TEXT>
Document 2 - file: mlm-ex991_6.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g4gyljnbljoo000001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g4gyljnbljoo000001.jpg

</DOCUMENT>
</SEC-DOCUMENT>