John MacMillan
$1.5B
Born
Sep 20, 1949
Age
76
Source of Wealth
Cargill
Residence
Plymouth, Minnesota
Citizenship
United States
Marital Status
Children
4
Education
- John MacMillan is one of 12 billionaire heirs to Cargill, the world's biggest agriculture business.
- His great-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.
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