William MacMillan
$1.5B
as of 10/04/24
About William MacMillan
William 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 $114.6 billion in 2020 sales across food, agriculture, financial and industrial divisions.
The Cargill-MacMillan family collects an estimated 18% of net profits as dividends every year.
Personal stats
Citizenship
United States of AmericaSource of wealth
CargillResidence
Englewood, ColoradoBirth date
05/25/54 (age 70)Self-made
inheritedWilliam MacMillan’s fortune is worth
25K
troy ounces of gold
23K
median U.S. household
15K
median U.S. income
0.03%
U.S. credit card volume
0.006%
GDP of the United States
0.004%
United States debt
Net worth history
Annual ranking
Net worth over time
Real-time ranking
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