Arthur Levitt Jr. (born February 3, 1931) is the former Chairman of the United States Securities and Exchange Commission (SEC). He served from 1993 to 2001 as the twenty-fifth and longest-serving chairman of the commission. Widely hailed as a champion of the individual investor, he has been criticized for not pushing for tougher accounting rules. Since May 2001 he has been employed as a senior adviser at the Carlyle Group. Levitt previously served as a policy advisor to Goldman Sachs and is a Director of Bloomberg LP, parent of Bloomberg News.