GiveRate / All records / Forbes 400 (Sept. 2026) / John Mars
John Mars
Not scored
John Mars (Forbes 400 #21, net worth $50.3B) has no published Forbes philanthropy score.
- GiveRate
- Not scored
- Net worth
- $50.3B
- Stated lifetime giving
- —
- Forbes 400
- #21 · Candy, pet food · Jackson, Wyoming
- Status
- Pending
- Sources
- Forbes 400 profile · Sept. 2026
The math
Forbes did not publish a philanthropy score for this person.
Profile
- Age
- 90
- Residence
- Jackson, Wyoming
- Industry
- Food & Beverage
- Source of wealth
- Candy, pet food
- Self-made
- No (inherited or family wealth)
- One-year change
- $42.2B (#22) in Sept. 2025 to $50.3B (#21) in Sept. 2026, a gain of 19%.
Others in Food & Beverage
- Jacqueline Mars: Not scored · $50.3B
- Todd Graves: 1–5% · $20.0B
- J. Christopher Reyes: Under 1% · $14.3B
- Jude Reyes: Under 1% · $14.3B
- Tilman Fertitta: Under 1% · $12.6B
- Marijke Mars: Not scored · $12.6B
Others in Wyoming
- Christy Walton: Under 1% · $22.0B
- J. Joe Ricketts & family: 1–5% · $9.3B
Questions
How much has John Mars given to charity?
Forbes has not published a philanthropy score for John Mars, so GiveRate does not estimate a rate.
What is John Mars' net worth?
Forbes estimates $50.3B as of September 2026, ranking #21 on the Forbes 400.
What is John Mars' GiveRate?
Not scored. GiveRate is lifetime giving as a share of wealth, built from published Forbes figures. See giverate.org/methods/ for the method.
GiveRate is an estimate built only from the published figures above. Wealth and giving totals are themselves estimates. See methods. Spot an error? Request a correction. See all Forbes 400 (Sept. 2026) · Open in the interactive rankings · Calculate your own GiveRate