Sam Altman Net Worth
The latest reputable estimate puts Sam Altman's net worth at about $4 billion, published May 12, 2026, according to Forbes.
Published estimates ranged from $3.3 billion to $4 billion between May 12, 2026 to August 3, 2026.
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What the fortune is made of
Most of this estimate is a stake in OpenAI and his venture investments. It is not cash in the bank: the number rises and falls with the share price, so it can change by billions in a single trading day.
How these figures are sourced
Each estimate on this page is shown with its source and whether the date is the valuation date stated by the source or the article publication date. Figures below 0.4 times or above 2.5 times the median of recent estimates are dropped as outliers. The range is a span of past published estimates across different dates, not a measure of uncertainty about the figure today. This page records when it was last checked.