Philanthropist and Microsoft Founder Bill Gates’ current net worth stands at approximately $125-130 billion as of early 2026.

At one time, Gates had 44.9% of Microsoft shares at its 1986 IPO but sold most over decades to fund philanthropy via the Bill & Melinda Gates Foundation, retaining roughly 1% today. If he had kept his full original stake, adjusted for splits and Microsoft’s growth (market cap now over $3 trillion), estimates suggest his net worth could exceed $700-800 billion, surpassing even Elon Musk’s.

Ongoing donations totaling tens of billions reduced his Microsoft exposure, while diversified investments through Cascade Investment bolster his remaining wealth.

Microsoft stock appreciation since 1986 has multiplied original shares over 1,000-fold, highlighting the impact of his divestment.