| Title | Founder |
| Start Date | 1973-00-00 |
| Executive | yes |
| Notes | 1954 Graduates from the London School of Economics. 1956 Sails to New York, takes job trading foreign stocks with F.M. Mayer. 1973 Creates Quantum hedge fund in New York. 1998 Quantum becomes the largest hedge fund in world. 2011 Converts hedge fund to family office, returning less than $1B to investors. |