Mortimer Benjamin Zuckerman (born June 4, 1937) is a Canadian-American billionaire media proprietor, magazine editor, and investor. He is the co-founder, executive chairman and former CEO of Boston Properties, one of the largest real estate investment trusts in the US. Zuckerman is also the owner and publisher of U.S. News & World Report, where he serves as editor-in-chief. He formerly owned the New York Daily News, The Atlantic, and Fast Company. On the Forbes 2016 list of the world's billionaires, he was ranked No. 688 with a net worth of US$2.5 billion. As of January 2020, his net worth is estimated at US$ 3.0 billion.