John MacMillan

About John MacMillan

John MacMillan is one of 12 billionaire heirs to Cargill, the world's biggest agriculture business.

His 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 $114.6 billion in 2020 sales across food, agriculture, financial and industrial divisions.

The Cargill-MacMillan family collects an estimated 18% of net profits as dividends every year.