Pauline MacMillan Keinath
$8.1B
Born
Jan 01, 1934
Age
91
Source of Wealth
Cargill
Residence
St. Louis, Missouri
Citizenship
United States
Marital Status
Married
Children
4
Education
- Pauline MacMillan Keinath is believed to be the largest shareholder of Cargill, the largest food company in the world, with an estimated 13% stake.
- Her late brother Whitney MacMillan was the last member of the family to serve as CEO of the business. He retired in 1995.
- Her 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.
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