GiveRate / All records / Forbes 400 (Sept. 2026) / James Clark
James Clark
1–5%
James Clark has given an estimated 1–5% of current net worth ($8.4B), based on Forbes' philanthropy score.
- GiveRate
- 1–5%
- Net worth
- $8.4B
- Stated lifetime giving
- Not stated
- Forbes 400
- #196 · Netscape, investments · Palm Beach, Florida
- Status
- Source-reported range
- Sources
- Forbes 400 profile · Sept. 2026
The math
Forbes philanthropy score 2 of 5: lifetime giving is 1–5% of current net worth. The range is Forbes' own banding; GiveRate shows it as published.
Profile
- Age
- 82
- Residence
- Palm Beach, Florida
- Industry
- Technology
- Source of wealth
- Netscape, investments
- Self-made
- Yes
- Role
- Cofounder, Netscape Communications Corporation
- One-year change
- $7.2B (#204) in Sept. 2025 to $8.4B (#196) in Sept. 2026, a gain of 17%.
What the range means in dollars
Forbes gives James Clark a philanthropy score of 2 out of 5, meaning lifetime giving equals 1% to 5% of current net worth. On a $8.4B fortune, that implies lifetime giving of roughly between $84M and $420M. 138 of the 400 share this score, 177 score lower and 68 score higher.
For scale: 1% to 5% of a $50,000 household income would be $500 to $2,500.
Others in Technology
- Elon Musk: Under 1% · $908B
- Jeff Bezos: 1–5% · $378B
- Larry Page: Under 1% · $278B
- Michael Dell: 1–5% · $263B
- Sergey Brin: 1–5% · $256B
- Mark Zuckerberg: 1–5% · $212B
Others in Florida
- Jeff Bezos: 1–5% · $378B
- Larry Ellison: Under 1% · $204B
- Thomas Peterffy: Under 1% · $107B
- Ken Griffin: 4.3% · $60.5B
- David Tepper: 1–5% · $28.5B
- Stephen Ross: 1–5% · $21.5B
Questions
How much has James Clark given to charity?
Forbes scores James Clark 2 of 5 for philanthropy, meaning lifetime giving of 1% to 5% of net worth, roughly between $84M and $420M on a $8.4B fortune.
What is James Clark's net worth?
Forbes estimates $8.4B as of September 2026, ranking #196 on the Forbes 400.
What is James Clark's GiveRate?
1–5%. 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