#358
Pauline MacMillan Keinath
United States 92 years old
Overview
- Source of Wealth
- Cargill
- Industry
- Food & Beverage
- Residence
- St. Louis, Missouri
- Marital Status
- Married
- Children
- 4
Biography
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.