Winthrop Realty Trust Inc (WRT), formerly Winthrop Realty Trust, is a diversified real estate investment trust (REIT). WRT conducts its business through its wholly owned operating partnership, WRT Realty L.P., (the Operating Partnership).The Company is engaged in the business of owning real property and real estate related assets. The Company operates in three segments: operating properties; loan assets; and REIT securities. In June 2013, Winthrop Realty Trust sold its medical office building property located in Deer Valley, Arizona. In November 2013, Winthrop Realty Trust closed on its acquisition of four newly constructed class A luxury apartment buildings. In July 2014, Winthrop Realty Trust the remaining 50% participation in the mezzanine loan indirectly secured by Water's Edge at Playa Vista.