Author: Sean Williams, The Motley Fool

Form 13F filings allow investors to see what stocks Wall Street’s greatest money managers have been buying, selling, and holding.

This past Saturday, the Oracle of Omaha specifically called out two holdings that he and his top investment aides were selling during the March-ended quarter.

A relatively modest amount of money can go a long way when it’s put to work in game-changing businesses.

These highly-profitable and exceptionally cheap industry leaders are ripe for the picking by patient investors.

In short, Wall Street’s hottest megacap has all the hallmarks of being in a bubble.