Katherine Tanner

Owns an estimated 3% stake in Cargill, now worth an estimated $1.9 billion

Katherine Tanner owns an estimated 3% stake in Cargill, the largest food company in the world. She's 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 $110 billion in 2017 sales across food, agriculture, financial and industrial divisions.

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Federal Election Campaign Contributions

Bernie Sanders Independent US Senator and former representative from Vermont, 2016 and 2020 Democratic presidential primary candidate

• 7 contributions · 258 USD (Dec 31 '19→Mar 15 '20)

Bernie 2020

• 7 contributions · 258 USD (Dec 31 '19→Mar 15 '20)

Family

Lucy C. MacMillan Stitzer $2B Real Time Net Worth as of 11/2/22 ; Chairs Waycrosse Inc., the Cargill family investment company

• sister

Sarah Chaney Cargill heir; one of four daughters of W. Duncan MacMillan

• sister

Alexandra Daitch Cargill heir; one of four daughters of W. Duncan MacMillan

• sister

Duncan MacMillan One of the four founders of Bloomberg LP

• father

Types	Person
Aliases	Katherine MacMillan Tanner

Katherine Tanner

Owns an estimated 3% stake in Cargill, now worth an estimated $1.9 billion

Federal Election Campaign Contributions

Family

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