13D Filing: Pershing Square and Howard Hughes Corp (HHC)

Item 6. Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer

Item 6 of the Original Schedule 13D is hereby amended and supplemented by adding the following information:

On June 30, 2017, the Reporting Persons, on behalf of the Pershing Square Funds, exercised on a cashless basis and net settled all of
their Warrants (thereby acquiring 1,136,517 Common Shares). Also on June 30, 2017, the Reporting Persons, on behalf of the Pershing Square Funds, extended the Swaps and engaged in ordinary course rebalancing transactions. There were no changes
in the aggregate notional economic exposure the Pershing Square Funds have to Common Shares under Swaps as a result of such transactions. The Swaps do not give the Reporting Persons direct or indirect voting, investment or dispositive control over
any securities of the Issuer and do not require the counterparty thereto to acquire, hold, vote or dispose of any securities of the Issuer. Accordingly, the Reporting Persons disclaim any beneficial ownership of any Common Shares that may be
referenced in the swap contracts or Common Shares or other securities or financial instruments that may be held from time to time by any counterparty to the contracts.

Item 7. Material to Be Filed as Exhibits

Item 7 of the Original Schedule 13D is hereby amended and supplemented by adding a reference to the following exhibit:

Exhibit 99.12: Trading Data.