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

Paragraphs (a) and (b) of Item 5 of
the Schedule 13D are hereby amended and restated in their entirety as follows:

(a) and (b). 1700480, as a wholly-owned subsidiary
of Teachers, may be deemed to share voting and dispositive power with Teachers with respect to the 23,286,237 shares of Common Stock it beneficially owns, representing approximately 15.6% of the shares of Common Stock outstanding.
Pursuant to the Master Agreement, 1700480 agreed that if it and its affiliates collectively own (beneficially or of record) more than 9.9% of the outstanding shares of Common Stock, 1700480 will cause to be voted in accordance with the
recommendations of the Issuers Board of Directors all of the shares of Common Stock owned by them in excess of such number of shares that represents 9.9% of the outstanding shares of Common Stock. The foregoing summary of the Master Agreement
is qualified in its entirety by reference to the full text of the Master Agreement.

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