Stephen Robert earned his undergraduate degree from Brown University in 1962 and attended Columbia Business School and the London School of Economics.
Robert joined Oppenheimer & Co. in 1968 as a portfolio manager of the Oppenheimer Fund. He became a partner of Oppenheimer & Co. in 1970 and a member of the Executive Committee and director of research in 1977. In 1979, he became president of the firm and in1983 assumed the role of chairman and CEO. In March 1986, Robert led a management team which returned Oppenheimer to private ownership through a management buy-out. In November 1997, Oppenheimer & Co., Inc. was acquired by the Canadian Imperial Bank of Commerce.
Robert has served as Chancellor of Brown University and has been a Trustee or Fellow of the University since 1984. He is a former Board member of the New York Philharmonic and Thirteen/WNET.