Marmon Holdings, an industrial conglomerate belonging to Chicago’s wealthiest family and Hyatt Hotel chain owner–the Pritzkers, would sell 60 percent of its stake worth of $4.5 billion to the investor Warren Buffet company, Berkshire Hathaway Inc. The deal was announced Tuesday December 25 on the Christmas day. Berkshire has also agreed to buy the rest of Marmon, which consists of more than 125 manufacturing and service companies, over the next 5-6years, at a price that will be based on the future earnings of the company