Warren Buffett - $47 billion: From his Berkshire Hathaway shares, American Warren Buffet has gained $10 billion in the past year. Buffet took over Berkshire Hathaway in 1965 and used the company to invest in companies such as Geico, Dairy Quee, MidAmerican Energy, and electric-car maker BYD. Buffet is seen here in Omaha, Neb., after lunch at Piccolo's restaurant with about 150 college business students form around the United States.
PHOTO: Kent Sievers/Omaha World Herald/PSG/Newscom
