Pauline MacMillan Keinath

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 $134.4 billion in 2021 sales across food, agriculture, financial and industrial divisions.