The Youngest Billionaires (Under 45): Mark Zuckerberg Tops the List — July 21, 2026

Published · By RealTimeBillionaire Data Desk

Mark Zuckerberg led The Youngest Billionaires (Under 45) on July 21, 2026 with an estimated net worth of $256.05B. Daniel Ek gained the most, up $1.24M (0.02%). Bobby Murphy fell the most, down $420.00K (0.06%).

Top 8

  1. 1Mark Zuckerberg$256.05B
  2. 2Brian Chesky$14.04B
  3. 3Pavel Durov$13.00B
  4. 4Daniel Ek$7.40B
  5. 5Brian Armstrong$4.77B
  6. 6Whitney Wolfe Herd$943.95M
  7. 7Bobby Murphy$691.52M
  8. 8Evan Spiegel$682.40M

Biggest Gainers

Biggest Losers

FAQ

Who is the richest billionaire under 45 on July 21, 2026?
Mark Zuckerberg, with an estimated net worth of $256.05B.
Who gained the most net worth on July 21, 2026?
Daniel Ek added an estimated $1.24M (0.02%), bringing their net worth to $7.40B.
Who lost the most net worth on July 21, 2026?
Bobby Murphy fell an estimated $420.00K (0.06%), bringing their net worth to $691.52M.
How many billionaires are on The Youngest Billionaires (Under 45) list?
8, with a combined estimated net worth of $297.58B as of July 21, 2026.
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Figures are directional estimates from public stock holdings, not audited valuations, and this site is not affiliated with Forbes.