Billionaire Bill Gates Dumps $2,228,403,000 in Microsoft and Warren Buffett’s Berkshire Hathaway
Bill Gates is unloading billions of dollars in shares of the company he co-founded, Microsoft (MSFT), while reducing a significant portion of his stake in Warren Buffett’s Berkshire Hathaway (BRK-B).
The 13F filing of the Gates Foundation Trust shows that Gates sold 1,500,000 MSFT shares, valued at $1.04 billion, in Q4 of 2025.
The move trimmed the foundation’s Microsoft holdings from 9,191,207 shares in Q3 to 7,691,207 by the next quarter, representing a 16% decline. As of December 31st, the Gates Foundation Trust’s MSFT ownership stands at $3.719 billion.
The foundation also dumped $1.187 billion worth of Berkshire Hathaway shares in Q4, cutting its position by 2,358,460 BRK-B shares. At the end of Q4 2025, the Gates Foundation Trust owns 19,406,764 BRK-B shares valued at $9.754 billion.
On top of selling portions of its MSFT and BRK-B stakes, the Gates Foundation Trust did not unload any of its other holdings. It also did not accumulate or add to any of its existing positions.
Looking at the foundation’s portfolio, Berkshire Hathaway remains at the top, even after the massive sale, accounting for 27.59% of its total holdings. Coming in at number two is the environmental services provider Waste Management (WM), allocating 17.98% of its portfolio to WM. Other major holdings in the foundation’s portfolio include the Canadian National Railway Company (CNR.TO), Microsoft and Caterpillar (CAT) at 14.49%, 10.52% and 10.29%, respectively.
The Gates Foundation Trust currently oversees over $35 billion in securities.
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