GiveRate / All records / Forbes 400 (Sept. 2026) / David Siegel
David Siegel
1–5%
David Siegel has given an estimated 1–5% of current net worth ($9.3B), based on Forbes' philanthropy score.
- GiveRate
- 1–5%
- Net worth
- $9.3B
- Stated lifetime giving
- Not stated
- Forbes 400
- #170 · Hedge funds · Scarsdale, New York
- 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
- 65
- Residence
- Scarsdale, New York
- Industry
- Finance & Investments
- Source of wealth
- Hedge funds
- Self-made
- Yes
- Role
- Co-Founder & Co-Chairman, Two Sigma
- One-year change
- $8.0B (#172) in Sept. 2025 to $9.3B (#170) in Sept. 2026, a gain of 16%.
What the range means in dollars
Forbes gives David Siegel a philanthropy score of 2 out of 5, meaning lifetime giving equals 1% to 5% of current net worth. On a $9.3B fortune, that implies lifetime giving of roughly between $93M and $465M. 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.
Giving on record
Siegel's charitable foundation, Siegel Family Endowment, is focused on technology and society and supports programs such as Scratch, which introduces children to coding.
From the Forbes profile (Sept. 2026).
Others in Finance & Investments
- Warren Buffett: ≥33.3% · $144B
- Thomas Peterffy: Under 1% · $107B
- Michael Bloomberg: ≥21.1% · $94.9B
- Jeff Yass: Under 1% · $77.8B
- Ken Griffin: 4.3% · $60.5B
- Stephen Schwarzman: 1–5% · $46.4B
Others in New York
- Michael Bloomberg: ≥21.1% · $94.9B
- Julia Koch & family: 1–5% · $84.6B
- Stephen Schwarzman: 1–5% · $46.4B
- Marilyn Simons & family: 20%+ · $36.6B
- Israel Englander: Under 1% · $27.6B
- Rupert Murdoch & family: Under 1% · $25.0B
Questions
How much has David Siegel given to charity?
Forbes scores David Siegel 2 of 5 for philanthropy, meaning lifetime giving of 1% to 5% of net worth, roughly between $93M and $465M on a $9.3B fortune.
What is David Siegel's net worth?
Forbes estimates $9.3B as of September 2026, ranking #170 on the Forbes 400.
What is David Siegel'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