<SEC-DOCUMENT>0000899140-21-000229-index.html : 20210212
<SEC-HEADER>0000899140-21-000229.hdr.sgml : 20210212
<ACCEPTANCE-DATETIME>20210212165422
ACCESSION NUMBER:		0000899140-21-000229
CONFORMED SUBMISSION TYPE:	SC 13G
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20210212
DATE AS OF CHANGE:		20210212
GROUP MEMBERS:		GEORGE S. LOENING

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]
		IRS NUMBER:				561848578
		STATE OF INCORPORATION:			NC
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-47249
		FILM NUMBER:		21628903

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Select Equity Group, L.P.
		CENTRAL INDEX KEY:			0001592643
		IRS NUMBER:				463465710
		STATE OF INCORPORATION:			DE

	FILING VALUES:
		FORM TYPE:		SC 13G

	BUSINESS ADDRESS:	
		STREET 1:		380 LAFAYETTE STREET
		STREET 2:		6TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10003
		BUSINESS PHONE:		212 475-8335

	MAIL ADDRESS:	
		STREET 1:		380 LAFAYETTE STREET
		STREET 2:		6TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10003
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G
<SEQUENCE>1
<FILENAME>s40473860a.htm
<DESCRIPTION>SCHEDULE 13G
<TEXT>
Document 1 - file: s40473860a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>s40473860b.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
Document 2 - file: s40473860b.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.2
<SEQUENCE>3
<FILENAME>s40473860c.htm
<DESCRIPTION>EXHIBIT 99.2
<TEXT>
Document 3 - file: s40473860c.htm

</DOCUMENT>
</SEC-DOCUMENT>