Pauline MacMillan Keinath

Pauline MacMillan Keinath is an American billionaire heiress. Pauline MacMillan was born on July 31, 1934 in Hennepin County, Minnesota. She is a great-granddaughter of William W. Cargill, the founder of Cargill, the largest private company in the US.

  • Pauline MacMillan Keinath is believed to be the largest shareholder of Cargill, the largest food company in the world, with an estimated 12% stake.
  • Her brother Whitney MacMillan was the last member of the family to serve as CEO of the business, but 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 $114 billion in 2019 sales across food, agriculture, financial and industrial divisions.

Cargill Pauline MacMillan Keinath