13D Filing: Ontario Teachers Pension Plan Board and Macerich Co (MAC)

NAMES OF
REPORTING PERSONS

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only)

1700480 Ontario Inc.

CHECK THE APPROPRIATE BOX IF A MEMBER
OF A GROUP (See Instructions)

(a)  ¨        (b)  ¨

SEC USE ONLY

SOURCE OF FUNDS (See Instructions)

    OO

CHECK BOX IF DISCLOSURE OF LEGAL
PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)    ¨

CITIZENSHIP OR PLACE OF
ORGANIZATION

    Ontario, Canada

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

SOLE VOTING POWER

    0

SHARED VOTING POWER

    23,286,237

SOLE DISPOSITIVE POWER

    0

SHARED DISPOSITIVE POWER

    23,286,237

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

    23,286,237

CHECK BOX IF THE AGGREGATE AMOUNT IN
ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)    ¨

PERCENT OF CLASS REPRESENTED BY AMOUNT
IN ROW (11)

    15.6%

TYPE OF REPORTING PERSON (See
Instructions)

    CO