43. David Tepper
The hedge fund legend has been steadily returning money to client investors of his Appaloosa Management for the past 6 years. The firm now manages some $17 billion, the majority of which belongs to him and his employees. Tepper, who relocated to Miami Beach, Florida, from New Jersey, gave a $67 million gift to one of his alma maters, Carnegie Mellon, to sponsor the David Tepper Quadrangle, a new building aiming to create a collaborative-learning environment.