For almost six full decades, Berkshire Hathaway (NYSE: BRK.A)(NYSE: BRK.B) CEO Warren Buffett has been running circles around Wall Street's benchmark index, the S 500. Whereas the S 500 has been nearing a 35,000% aggregate gain, including dividends paid, since the mid-1960s, Berkshire Hathaway's Class A shares (BRK.A) have produced an aggregate gain of greater than 5,060,000% without a single dividend payment over the same span.

Given the Oracle of Omaha's penchant for outperforming Wall Street's major stock indexes, it's not a surprise that investors eagerly await the quarterly release of Berkshire Hathaway's Form 13F filing with the Securities and Exchange Commission.

A 13F is a required filing for institutions with at least $100 million in assets under management (AUM). It allows investors to see what Wall Street's top money managers bought and sold in the latest quarter. May 15 marked the filing deadline for the March-ended quarter.

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Source Fool.com