The Youngest Billionaires (Under 45): Mark Zuckerberg Tops the List — July 31, 2026
Published · By News Desk (automated, compiled from live market data)
Mark Zuckerberg closed out July 31, 2026 atop The Youngest Billionaires (Under 45) list, an estimated $218.66B, built primarily on Meta Platforms. Right behind: Brian Chesky and Pavel Durov follow in the next spots, at $14.69B and $13.00B respectively. Combined, the 8 people we track here are worth $261.31B, up $2.21B from the prior session.
Mark Zuckerberg posted the day's biggest gain, adding $2.11B (0.97%) to reach $218.66B (#1). The move traces to Meta Platforms (META), which fell 7.95% on the day — most of a billionaire's daily swing simply follows their main stock's share price.
On the other side, Whitney Wolfe Herd took the day's steepest loss, down $75.00K (0.01%) to $943.65M (#6). The move traces to Bumble (BMBL), which fell 2.02% on the day — most of a billionaire's daily swing simply follows their main stock's share price.
Top 8
- 1Mark Zuckerberg$218.66B
- 2Brian Chesky$14.69B
- 3Pavel Durov$13.00B
- 4Daniel Ek$7.79B
- 5Brian Armstrong$4.84B
- 6Whitney Wolfe Herd$943.65M
- 7Bobby Murphy$696.98M
- 8Evan Spiegel$687.60M
Biggest Gainers
- Mark Zuckerberg+$2.11B (+0.97%)
- Daniel Ek+$64.78M (+0.84%)
- Brian Armstrong+$23.74M (+0.49%)
- Brian Chesky+$17.10M (+0.12%)
- Whitney Wolfe Herd-$75.00K (-0.01%)
Biggest Losers
- Whitney Wolfe Herd-$75.00K (-0.01%)
- Brian Chesky+$17.10M (+0.12%)
- Brian Armstrong+$23.74M (+0.49%)
- Daniel Ek+$64.78M (+0.84%)
- Mark Zuckerberg+$2.11B (+0.97%)
FAQ
- Who is the richest billionaire under 45 on July 31, 2026?
- Mark Zuckerberg, with an estimated net worth of $218.66B.
- Who gained the most net worth on July 31, 2026?
- Mark Zuckerberg added an estimated $2.11B (0.97%), bringing their net worth to $218.66B.
- Who lost the most net worth on July 31, 2026?
- Whitney Wolfe Herd fell an estimated $75.00K (0.01%), bringing their net worth to $943.65M.
- How many billionaires are on The Youngest Billionaires (Under 45) list?
- 8, with a combined estimated net worth of $261.31B as of July 31, 2026.
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Figures are directional estimates from public stock holdings, not audited valuations, and this site is not affiliated with Forbes.