302. Patrick Ryan
$2.7 billion * self-made score: source: insurance age: 80 residence: Winnetka, ill. B.B.A., northwestern ’59 The former CEO of insurance giant Aon, Ryan came out of retirement in 2010 to form Ryan Specialty Group, a wholesale brokerage and insurance firm. Ryan, a part owner of the Chicago Bears, and his wife have donated nearly $200 million to his alma mater, Northwestern University.