<SEC-DOCUMENT>0000950157-19-000284-index.html : 20190318
<SEC-HEADER>0000950157-19-000284.hdr.sgml : 20190318
<ACCEPTANCE-DATETIME>20190318172544
ACCESSION NUMBER:		0000950157-19-000284
CONFORMED SUBMISSION TYPE:	10-K/A
PUBLIC DOCUMENT COUNT:		4
CONFORMED PERIOD OF REPORT:	20181231
FILED AS OF DATE:		20190318
DATE AS OF CHANGE:		20190318

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:		10-K/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12744
		FILM NUMBER:		19689294

	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>10-K/A
<SEQUENCE>1
<FILENAME>form10-ka.htm
<DESCRIPTION>AMENDMENT NO. 1
<TEXT>
Document 1 - file: form10-ka.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.01
<SEQUENCE>2
<FILENAME>ex23-01.htm
<TEXT>
Document 2 - file: ex23-01.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.01
<SEQUENCE>3
<FILENAME>ex31-01.htm
<TEXT>
Document 3 - file: ex31-01.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.02
<SEQUENCE>4
<FILENAME>ex31-02.htm
<TEXT>
Document 4 - file: ex31-02.htm

</DOCUMENT>
</SEC-DOCUMENT>