Microsoft, Berkshire, And Waste Management Dominate Bill Gates' $44 Billion Foundation Portfolio

The Bill & Melinda Gates Foundation takes a highly concentrated approach to managing its endowment, with just three stocks accounting for 65% of its $44 billion equity portfolio, according to a document filed with the U.S. Securities and Exchange Commission last month. Microsoft (NASDQ: MSFT) leads the foundation’s holdings at 28.5% of the portfolio, followed by Berkshire Hathaway (NYSE:BRK) (NYSE:BRK) at 21.2% and Waste Management (NYSE:WM) at 15.4%, reflecting both Gates’ tech background and W