X0306 4 2019-05-31 0 0000912242 MACERICH CO MAC 0001762914 Volk Kenneth 401 WILSHIRE BLVD. SUITE 700 SANTA MONICA CA 90401 0 1 0 0 SVP, Chief Marketing Officer Common Stock 2019-05-31 4 A 0 618 30.88 A 13017 D Common Stock 2019-05-31 5 F 0 E 28 36.33 D 12989 D The reporting person is voluntarily reporting the acquisition of the issuer's common stock pursuant to the issuer's Employee Stock Purchase Plan ("ESPP") for the six month ESPP offering period ended May 31, 2019. This transaction is exempt pursuant to Rule 16b-3(c). In accordance with the ESPP, the shares were purchased at a 15% discount from the closing price of the issuer's common stock on May 31, 2019. Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the reporting person's acquisition of shares pursuant to the ESPP on May 31, 2019. Lisa R. Pena for Kenneth L. Volk 2019-06-04