How Much of Microsoft Does Bill Gates Own?
Bill Gates has restructured his ownership stake in Microsoft over the years since co-founding the company with Paul Allen in 1975. Yahoo Finance tells us that in the Early days, Bill Gates held a substantial portion, since he has diversified his portfolio across sectors. His financial journey reflects a strategic approach to wealth management and not holding on to a majority share of Microsoft.
Bill Gates's Current Stake in Microsoft
Motley Fool reports Bill Gates' ownership of Microsoft in 2025 is set at 1.34%, a significant reduction from the 45% stake he held after the company's initial public offering (IPO) in 1986. This decrease of ownership is primarily due to systematic stock sales aimed at funding his philanthropic endeavors and diversifying his investment portfolio.
Related: Bill Gates’s Midcentury Modern Home in Medina Hits the Market for $4.9M
Related: Inside Bill Gates' Family: The Powerhouse Parents Behind His Success
Diversification: Other Companies in Gates's Portfolio
Beyond Microsoft, Bill Gates has invested in a variety of companies through his personal ventures and the Bill & Melinda Gates Foundation Trust. Investopedia document their notable holdings include:
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Berkshire Hathaway: Approximately 22% of the foundation's portfolio, valued at around $9.5 billion.
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Waste Management Inc.: The foundation owns 35.2 million shares, representing an 8.81% stake valued at $5.52 billion.
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Canadian National Railway Co.: A significant holding, reflecting Gates's interest in transportation and infrastructure.
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Caterpillar Inc.: Part of the foundation's diversified industrial investments.
Evolution of Gates's Microsoft Ownership
As reported on 24/7 Wall St. initially, Gates's stake in Microsoft was substantial, holding 45% post-IPO in 1986. Over the decades, he has systematically reduced his holdings:
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Late 1990s: Began selling portions of his shares to fund philanthropic initiatives.
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2024: Sold 5.9 million shares, a 17% decrease in his stake during the third quarter.
All of these sales help to facilitate the significant contribution to the Bill & Melinda Foundation which supports global health, education and development programs. A sign of both Bill Gates and Melinda French Gates' philanthropy, using their success and wealth to aid, a billionaire we can get behind.
Related: How Much of General Motors Does Mary Barra Own?
Melinda French Gates's Microsoft Holdings in 2025
Following their divorce in 2021, Melinda French Gates received a portion of Microsoft's stock as part of the settlement. While specific details about her current holdings are not publicly disclosed, it is known that she has been divesting shares over time. Reports indicate that Gates has continued transferring stock to his former wife, suggesting she maintains some level of investment in Microsoft.
Conclusion
Bill Gates portfolio represents a commitment to philanthropy as well as being strategic with his own wealth, managing to diversify his assets. His portfolio now spans various industries, reflecting a focus on sustainable and impactful ventures. Bill Gates exemplifies responsible and strategic investing, growing his wealth while prioritizing impactful philanthropy. His commitment to global health, education, and climate solutions sets a standard for how billionaires should use their resources to drive meaningful change.
