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 worlds wealthiest people He was ranked as the worlds wealthiest person in 2008 and is the third wealthiest person in the world as of 2011 Buffett is called the Oracle of Omaha or the Sage of Omaha and is noted for his adherence to the value investing philosophy and for his personal frugality despite his immense wealth Buffett is also a notable philanthropist having pledged to give away 99 percent of his fortune to philanthropic causes primarily via the Gates Foundation He also serves as a member of the board of trustees at Grinnell College Description above from the Wikipedia article Warren Buffett licensed under CCBYSA full list of contributors on Wikipedia