<SEC-DOCUMENT>0001193125-18-028220-index.html : 20180201
<SEC-HEADER>0001193125-18-028220.hdr.sgml : 20180201
<ACCEPTANCE-DATETIME>20180201061104
ACCESSION NUMBER:		0001193125-18-028220
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20180201
DATE AS OF CHANGE:		20180201
GROUP MEMBERS:		1700480 ONTARIO INC.

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MACERICH CO
		CENTRAL INDEX KEY:			0000912242
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				954448705
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-43323
		FILM NUMBER:		18564581

	BUSINESS ADDRESS:	
		STREET 1:		401 WILSHIRE BLVD
		STREET 2:		STE 700
		CITY:			SANTA MONICA
		STATE:			CA
		ZIP:			90401
		BUSINESS PHONE:		3103946000

	MAIL ADDRESS:	
		STREET 1:		401 WILSHIRE BLVD SUITE 700
		CITY:			SANTA MONICA
		STATE:			CA
		ZIP:			90401

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ONTARIO TEACHERS PENSION PLAN BOARD
		CENTRAL INDEX KEY:			0000937567
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			A6
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		5650 YONGE STREET
		STREET 2:		NORTH YORK
		CITY:			TORONTO
		STATE:			A6
		ZIP:			M2M 4H5
		BUSINESS PHONE:		4167305300

	MAIL ADDRESS:	
		STREET 1:		5650 YONGE STREET
		STREET 2:		NORTH YORK
		CITY:			TORONTO
		STATE:			A6
		ZIP:			M2M 4H5
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>d529241dsc13da.htm
<DESCRIPTION>AMENDMENT NO. 5 TO SCHEDULE 13D
<TEXT>
Document 1 - file: d529241dsc13da.htm

</DOCUMENT>
</SEC-DOCUMENT>