Rank #345
Pauline MacMillan Keinath
Net worth $9.8B
Cargill · United States
- Born
- Jan 01, 1934
- Age
- 92
- Source
- Cargill
- Residence
- St. Louis, Missouri
- Citizenship
- United States
- Marital status
- Married
- Children
- 4
- Education
Net worth over time
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.