Pennsylvania Real Estate Investment Trust engages in the ownership, management, leasing, acquisition, redevelopment, and disposition of shopping malls. The firm focuses on shopping malls located in the eastern half of the U.S. primarily in the Mid-Atlantic region. Its property portfolio includes Cherry Hill Mall, Plymouth Meeting Mall, Mall at Prince Georges, and Springfield Town Center. The company was founded by Sylvan M. Cohen in 1960 and is headquartered in Philadelphia, PA.