John H. MacMillan IV IV

John H. MacMillan IV IV

John H. MacMillan IV IV (#3056)

  • $ 1 B
  • Cargill
  • United States
  • M
  • 73 Years

About Me

John G. MacMillan IV is one of 21 billionaire heirs to Cargill, America's largest private company. His great-grandfather, W.W. Cargill, founded the business as a single grain warehouse on the end of an Iowa railroad line in 1865. The family still owns roughly 90% of Cargill, which did $154 billion in 2025 sales across food, agriculture, financial and industrial divisions. The Cargill-MacMillan family collects an estimated 18% of net profits as dividends every year. He's one of nine billionaire siblings who inherited stakes in the company from their father John H. MacMillan III, who died in 2008.
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Achievements

Career Highlights

A snapshot of the defining milestones, leadership decisions, and breakthroughs that shaped John H. MacMillan IV IV’s rise and global influence.

  • #3017   Billionaires (2026)

Wealth Growth

Net Worth Growth Over Time

Tracking John H. MacMillan IV IV’s net worth journey over the years, highlighting key growth phases and financial milestones.