GiveRate / All records / Forbes 400 (Sept. 2026) / Robert Clark
Robert Clark
Under 1%
Robert Clark has given an estimated under 1% of current net worth ($7.0B), based on Forbes' philanthropy score.
- GiveRate
- Under 1%
- Net worth
- $7.0B
- Stated lifetime giving
- Not stated
- Forbes 400
- #245 · Construction · St. Louis, Missouri
- Status
- Source-reported range
- Sources
- Forbes 400 profile · Sept. 2026
The math
Forbes philanthropy score 1 of 5: lifetime giving is under 1% of current net worth. The range is Forbes' own banding; GiveRate shows it as published.
Profile
- Age
- 67
- Residence
- St. Louis, Missouri
- Industry
- Construction & Engineering
- Source of wealth
- Construction
- Self-made
- Yes
- One-year change
- New to the Forbes 400 in 2026 at #245 with $7.0B.
What the range means in dollars
Forbes gives Robert Clark a philanthropy score of 1 out of 5, meaning lifetime giving equals under 1% of current net worth. On a $7.0B fortune, that implies lifetime giving of less than $70M. 177 of the 400 share this score and 206 score higher.
For scale: under 1% of a $50,000 household income would be under $500.
Others in Construction & Engineering
- Diane Hendricks: Under 1% · $23.6B
- Mike Hollingshead & family: Under 1% · $7.2B
Others in Missouri
- David Steward: 1–5% · $12.3B
- Pauline MacMillan Keinath: Under 1% · $8.4B
- John Morris: 5–10% · $8.3B
- Jim Kavanaugh: Under 1% · $7.7B
- Robert Low: Under 1% · $5.6B
- Rodger Riney & family: 1–5% · $4.8B
Questions
How much has Robert Clark given to charity?
Forbes scores Robert Clark 1 of 5 for philanthropy, meaning lifetime giving of under 1% of net worth, less than $70M on a $7.0B fortune.
What is Robert Clark's net worth?
Forbes estimates $7.0B as of September 2026, ranking #245 on the Forbes 400.
What is Robert Clark's GiveRate?
Under 1%. 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