Martin A. Siegel (born 1948) is an American former investment banker who was convicted, along with Ivan Boesky and Michael Milken, for insider trading during the 1980s.
Born to a Jewish family,[1] Siegel is a graduate of Harvard Business School.
[3] In February 1986, he left Kidder to become a managing director at Drexel Burnham Lambert.
[5] His guilty plea included an agreement to pay over US$9 million in civil penalties and forfeit $10 million more in bonuses and stock owed to him by Drexel—a sum many times greater than the illegal gains from his relationship with Boesky.
[10] His involvement in criminal activities is recounted in the book Den of Thieves by Pulitzer Prize-winning author James B. Stewart.