From Wikipedia, the free encyclopedia Warren Edward Buffett (born August 30, 1930) is an American investor, industrialist and philanthropist. He is widely regarded as one of the most successful investors in the world. Often called the "legendary investor, Warren Buffett", he is the primary shareholder, chairman and CEO of Berkshire Hathaway. He is consistently ranked among the world's wealthiest people. He was ranked as the world's wealthiest person in 2008 and is the third wealthiest person in ...