For the last six decades, Berkshire Hathaway (NYSE: BRK.A)(NYSE: BRK.B) CEO Warren Buffett has been dazzling Wall Street with his investing prowess. Whereas the benchmark S 500 has delivered a respectable gain, including dividends, of a little over 35,000% since Buffett took over as CEO, the affably named "Oracle of Omaha" has overseen an aggregate return in his company's Class A shares (BRK.A) of almost 5,000,000%!

When you're absolutely crushing Wall Street's widely followed stock indexes, you're bound to draw a lot of attention. It's why 40,000 people flock to Berkshire Hathaway's shareholder meeting each year, and it's what compels investors to seek out Berkshire's quarterly Form 13F filings.

A 13F provides investors with an over-the-shoulder look of what Wall Street's brightest investment minds have been buying and selling in the most recent quarter. However, Berkshire Hathaway's 13Fs fail to tell investors the complete story of what's under the hood.

Continue reading

Source Fool.com