Macerich Co. operates as a real estate investment trust, which engages in the acquisition, ownership, development, redevelopment, management and leasing of regional and community shopping centers located throughout the United States. It conducts all of its operations through the operating partnership and the management companies. Read More The company was founded by Mace Siegel, Dana K. Anderson, Arthur M. Coppola and Edward C. Coppola in 1964 and is headquartered in Santa Monica, CA. The listed name for MAC is The Macerich Company.