The displayed amount and rank are provisional external-reference data. Asset schedules, ownership allocations and liabilities have not yet been independently reconstructed by Other Billionaires. Read the editorial standard.
Reported source associations
Wealth-source references
These entries identify businesses associated with the source-derived record. They are not a verified ownership map, asset schedule or allocation of private-company value.
Claim-level research
Documented claims
Julia Koch and her three children inherited a 42% stake in Koch, Inc. (formerly Koch Industries) from her husband, David Koch, who died in 2019 at age 79. [2]
Published reference history
Published wealth snapshots
Published estimates remain distinct from independently calculated Other Billionaires valuations. Additional reviewed snapshots will appear as evidence is added.
Career record
Selected milestones
No milestone has yet passed the profile’s citation threshold. This section will expand during editorial review.
Philanthropy
Disclosed giving
Evidence record
Methodology and status
A dated external annual reference retained provisionally during legal and first-party valuation review. It is not an independently calculated Other Billionaires valuation.
- Schema version
- 1.2
- Historical snapshots
- 3
- Researched claims
- 1
- Last reviewed
- 2026-08-26
Citations