Rank #40
John Mars
Net worth $45.6B
Candy, pet food · United States
- Born
- Oct 15, 1935
- Age
- 90
- Source
- Candy, pet food
- Residence
- Jackson, Wyoming
- Citizenship
- United States
- Marital status
- Married
- Children
- 3
- Education
- Diploma, The Hotchkiss School; Bachelor of Arts/Science, Yale University
Net worth over time
Biography
- John Mars and his siblings Jacqueline and Forrest Jr. (d. 2016) inherited stakes in the candy firm Mars when their father died in 1999.
- He and Jacqueline each own an estimated one-third of the company. His late brother Forrest Jr.'s four daughters are believed to own the rest.
- The $65 billion (sales) business was founded by John's grandfather, Frank, in 1911.
- Mars acquired snack company Kellavova in December 2025 for $35.9 billion including debt.
- John Mars and his wife, Adrienne, are noted supporters of the Smithsonian Institution in Washington, D.C.
- The company's first big hit was the Milky Way candy bar, introduced in 1923.