Portrait of Sarah MacMillan

Rank #1608

Sarah MacMillan

Net worth $2.6B

Cargill · United States

Born
Jan 01, 1954
Age
72
Source
Cargill
Residence
Los Angeles, California
Citizenship
United States
Marital status
Divorced
Children
3
Education

Net worth over time

Biography

  • Sarah MacMillan owns an estimated 3% stake in Cargill, the largest food company in the world.
  • She is one of four billionaire sisters who inherited stakes in the company from their father W. Duncan MacMillan, who died in 2006.
  • Her 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.