X0306 4 2019-08-21 0 0000912242 MACERICH CO MAC 0001022056 O HERN THOMAS E 401 WILSHIRE BLVD. SUITE 700 SANTA MONICA CA 90401 1 1 0 0 Chief Executive Officer Common Stock 2019-08-21 4 P 0 5000 28.0162 A 78621 D Excludes 5,201 shares held indirectly by the reporting person through the Company's 401(k) Plan and 2,982 shares held by his children who share the reporting person's household. The reporting person disclaims beneficial ownership of all shares held by his children and this report should not be deemed an admission that the reporting person is the beneficial owner of such shares for purposes of Section 16 or otherwise. Includes 2,441 shares held in joint accounts for the reporting person and two of his sons. Ann C. Menard for Thomas E. O'Hern 2019-08-21