 As of December 31, 2019, the company owned interests in 52 properties comprising 51 million square feet of leasable area.The company name is a portmanteau of its founders, Mace Siegel and Richard Cohen.The company traces its antecedents to the MaceRich Real Estate Company founded in New York in 1964 by "Mace Siegel" and "Richard Cohen" who combined their first names to name their company.