Mack-Cali at a Glance   The Company, serving over 2,200 tenants, owns or has interests in 300 properties totaling approximately 34.3 million square feet plus land for the development of 11.5 million square feet of commercial space. Mack-Cali's holdings are located primarily in the Northeast and Mid-Atlantic regions and include over 28.8 million square feet of office space, 5.0 million square feet of office/flex space, and 387,400 square feet of industrial/warehouse space.