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.