Among prominent investors, Berkshire Hathaway (NYSE: BRK.A)(NYSE: BRK.B) CEO Warren Buffett has been in a class of his own since taking the reins in 1965. Whereas the widely followed S&P 500 has averaged a 9.9% annualized return, including dividends, since Buffett became Berkshire Hathaway CEO, the Oracle of Omaha has produced a stellar 19.8% average annual return for the company's Class A shares.

Following Warren Buffett's every move has been a profitable and generally easy thing to do, largely thanks to required quarterly Form 13F filings with the Securities and Exchange Commission.

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Source Fool.com