Barry Gosin will step down as CEO of Newmark at the end of the year, ending a 48-year run at the helm of the brokerage and commercial real estate services firm. Gosin will continue to serve as chairman of Newmark’s operating company, Newmark & Co. Real Estate Inc., and will “focus on relevant and impactful topics,” the company said in a news release Friday morning. The board of directors expects to select a new CEO by the end of the year. As part of the transition plans, Gosin entered into a new employment agreement that will keep him in the chairman position up to 2029. In another executive suite move, Newmark named Kyle Lutnick, Howard Lutnick’s son, as the brokerage’s chief strategy officer in May.