---
title: "BUFFETT WARREN E — Ownership Dossier"
canonical: https://whiteintel.dev/entity/9e82f7cc-125c-5dcf-b22d-28507894353e
json: https://whiteintel.dev/api/public/dossier/9e82f7cc-125c-5dcf-b22d-28507894353e
identifier: sec:0000315090
jurisdiction: US
risk: Medium
source: WhiteIntel corporate-ownership graph
---

# BUFFETT WARREN E

**Type:** Person  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0000315090`  
**Risk level:** Medium  
**Canonical dossier:** https://whiteintel.dev/entity/9e82f7cc-125c-5dcf-b22d-28507894353e  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/9e82f7cc-125c-5dcf-b22d-28507894353e  

## Ownership & control

### Holdings / subsidiaries

- **DAVITA INC.** (10% owner) — https://whiteintel.dev/entity/88b159d2-1136-5192-8204-776f430b2233
- **DAVITA INC.** (10% owner) — https://whiteintel.dev/entity/88b159d2-1136-5192-8204-776f430b2233
- **OCCIDENTAL PETROLEUM CORP /DE/** (10% owner) — https://whiteintel.dev/entity/073c677c-40dd-5783-90bb-4d1b959b05bf
- **SIRIUS XM HOLDINGS INC.** (10% owner) — https://whiteintel.dev/entity/7e2a92de-2deb-5281-bfd5-e48a9bc59312
- **VERISIGN INC/CA** (10% owner) — https://whiteintel.dev/entity/005c77f8-c85f-5ea1-9343-db46f05a77cb
- **BERKSHIRE HATHAWAY INC** (director) — https://whiteintel.dev/entity/280ffc7e-d80c-5cec-839c-4da3c6b851c1
- **AMERIPRISE FINANCIAL INC** (tenpercentowner) — https://whiteintel.dev/entity/a17649bf-a234-5c64-b757-1d964d9c7209
- **BERKSHIRE HATHAWAY INC** (tenpercentowner) — https://whiteintel.dev/entity/280ffc7e-d80c-5cec-839c-4da3c6b851c1
- **BERKSHIRE HATHAWAY INC** (officer) — https://whiteintel.dev/entity/280ffc7e-d80c-5cec-839c-4da3c6b851c1
- **DAVITA INC.** (tenpercentowner) — https://whiteintel.dev/entity/88b159d2-1136-5192-8204-776f430b2233
- **LIBERTY LIVE HOLDINGS, INC.** (tenpercentowner) — https://whiteintel.dev/entity/5f5d88db-a9b1-53a1-b892-bfd621b5a1a4
- **VERISIGN INC/CA** (tenpercentowner) — https://whiteintel.dev/entity/005c77f8-c85f-5ea1-9343-db46f05a77cb

…and **28** more subsidiaries/holdings. Resolve the full list with `get_dossier` on the WhiteIntel MCP (`npx -y @whiteintel/mcp-server`) or a one-off dossier — https://whiteintel.dev/pricing.

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **BUFFETT WARREN E** — https://whiteintel.dev/entity/9e82f7cc-125c-5dcf-b22d-28507894353e · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **BUFFETT WARREN E**. Human view: https://whiteintel.dev/entity/9e82f7cc-125c-5dcf-b22d-28507894353e · Structured JSON: https://whiteintel.dev/api/public/dossier/9e82f7cc-125c-5dcf-b22d-28507894353e._

_Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._