Robert Greifeld

Robert Greifeld (born 1957) is an American businessman and was the chairman of Nasdaq, the largest electronic screen-based equity securities market in the United States. He served as CEO from 2003-2016 and was succeeded by Adena Friedman. Greifeld focused the NASDAQ-OMX mission on being the premier U.S equities market, leveraging NASDAQ-OMX's fundamental market structure advantage. He stepped down as Chairman in May 2017 and to become Chairman of Virtu Financial.