Berkshire Hathaway CEO Warren Buffett has led his company on a world-beating run that's spanned nearly six decades. When the Oracle of Omaha purchased a controlling stake in the company that would be the foundation of his financial empire, it was trading at just $18 per share.Jump ahead to today, and a single share of Berkshire's Class A stock is trading at about $563,000. If you invested $1,000 in Berkshire shares on the day that Buffett purchased a controlling stake in the company and held through the yea ...