No. 35United States
John Mars
Candy, pet food · Jackson, Wyoming
Net worth
$50.3B
Today
$00.00%Past month
$00.00%As of Nov 11, 2026, 1:50 PM EST
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.
Net worth over time
0.00%+$0 over the past month
$50B$50B$50B
Oct 12Nov 10
Principal holdings
1 positions| Company | Industry | Share | Value |
|---|---|---|---|
Private holdings | Food & Beverage | 100.0% | $50.3B |
Also known for
- 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.