# Warren E. Buffett > Alpha governed public record. Unknown, unavailable, and unpublished values are never inferred as zero. ## Record | Field | Value | | --- | --- | | Representation | alpha-profile-markdown-v3 | | Protocol | Alpha Governance Facts Protocol 0.1 | | Schema | alpha.governance.entity.public.v1 | | Record version | public-0 | | Canonical entity | alpha:person:warren-e-buffett | | Entity type | Person | | Canonical URL | https://registry.alpha.ac/people/warren-e-buffett | | Publication | PUBLISHED | | Verification | corroborated | | Verification schema | alpha-verification-states-v1 | | Ownership | unclaimed | | Published claims | 15 | | Claims under review | 0 | | Evidence records | 9 | | Conflicts | 0 | | Conflicts in internal review | 0 | | Observed | 2026-09-13T14:08:17.003476+00:00 | | Last reviewed | 2026-05-15T23:52:34.458+00:00 | ## Identity - Legal name: Warren E. Buffett - Display name: Warren E. Buffett ## Leadership - PUBLISHED ## Roles - Chairman at Berkshire Hathaway. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:person:warren-e-buffett:3. - Chairman of the Board of Directors at Berkshire Hathaway. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:person:warren-e-buffett:7. ## Governance - PUBLISHED ## Board committees - PUBLISHED ## AI and ML experience - AI and ML experience: not identified in the cited filing. Publication: PUBLISHED. Verification: corroborated. Assertion: source_reported. Evidence: alpha:evidence:person:warren-e-buffett:1, alpha:evidence:person:warren-e-buffett:4. ## AI expertise - AI expertise: not identified in the cited filing. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:person:warren-e-buffett:8. ## AI governance relevance - AI governance relevance reported from role and filings. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:person:warren-e-buffett:8. ## Board independence - Not independent (executive director). Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:person:warren-e-buffett:2. ## Board membership - Serves on the board of Berkshire Hathaway Inc.. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:person:warren-e-buffett:2. ## Board role - Board role: Chair. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:person:warren-e-buffett:1. ## Committee assignments - No committee assignment disclosed in the cited filing. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:person:warren-e-buffett:1. ## Cybersecurity experience - Cybersecurity experience: not identified in the cited filing. Publication: PUBLISHED. Verification: corroborated. Assertion: source_reported. Evidence: alpha:evidence:person:warren-e-buffett:4, alpha:evidence:person:warren-e-buffett:1. ## Executive company - Executive at Berkshire Hathaway Inc.. Publication: PUBLISHED. Verification: corroborated. Assertion: source_reported. Evidence: alpha:evidence:person:warren-e-buffett:1, alpha:evidence:person:warren-e-buffett:5, alpha:evidence:person:warren-e-buffett:6, alpha:evidence:person:warren-e-buffett:4, alpha:evidence:person:warren-e-buffett:8. - Executive at Berkshire Hathaway Inc. Class A. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:person:warren-e-buffett:9. ## Executive function - Enterprise Leadership (CEO). Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:person:warren-e-buffett:8. ## Executive title - Executive title: Chairman. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:person:warren-e-buffett:1. ## Technology background - Technology background: not identified in the cited filing. Publication: PUBLISHED. Verification: corroborated. Assertion: source_reported. Evidence: alpha:evidence:person:warren-e-buffett:1, alpha:evidence:person:warren-e-buffett:4. ## Coverage states | Field | Value | | --- | --- | | Identity | PUBLISHED | | Business | NOT_APPLICABLE | | Leadership | PUBLISHED | | Board and committees | PUBLISHED | | Governance | PUBLISHED | | Financials | NOT_APPLICABLE | | Workforce | NOT_APPLICABLE | | Ownership | NOT_APPLICABLE | | Ratings | NOT_PUBLISHED | | Market and index context | NOT_APPLICABLE | ## Public sources - alpha:evidence:person:warren-e-buffett:1: [BRK.B DEF 14A director slate](https://www.sec.gov/Archives/edgar/data/1067983/000119312526106253/d882687ddef14a.htm). - alpha:evidence:person:warren-e-buffett:2: [Berkshire Hathaway Inc. director board source](https://www.sec.gov/Archives/edgar/data/1067983/000119312526106253/d882687ddef14a.htm). - alpha:evidence:person:warren-e-buffett:3: [sec_proxy](https://www.sec.gov/Archives/edgar/data/1067983/000119312526106253/d882687ddef14a.htm). - alpha:evidence:person:warren-e-buffett:4: [BRK-B 10-K executive officers](https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm). - alpha:evidence:person:warren-e-buffett:5: [BRK-A 10-K executive officers](https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm). - alpha:evidence:person:warren-e-buffett:6: [BRK.B 10-K executive officers](https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm). - alpha:evidence:person:warren-e-buffett:7: [leadership_page](https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm). - alpha:evidence:person:warren-e-buffett:8: BRK.B executive roster source. - alpha:evidence:person:warren-e-buffett:9: [Berkshire Hathaway Inc. Class A key executives](https://financialmodelingprep.com/stable/key-executives?symbol=BRK-A). ## Rights | Field | Value | | --- | --- | | public_retrieval | allowed | | agent_retrieval | allowed | | redistribution | not_granted | | model_training | not_granted | | commercial_use | not_specified | | relationship_pathfinding | not_granted | | direct_contact | not_granted | ## Limitations - Only permissioned public claims and evidence are included. - Absence of a claim is not evidence that the underlying fact is false. - Public retrieval does not grant model-training or redistribution rights. - Private relationships and Council activity are excluded. ## Alternate representations - [Canonical profile](https://registry.alpha.ac/people/warren-e-buffett) - [Public Markdown](https://registry.alpha.ac/people/warren-e-buffett.md) - [Public JSON](https://registry.alpha.ac/api/public/profiles/warren-e-buffett) - [JSON-LD](https://registry.alpha.ac/api/public/profiles/warren-e-buffett?format=jsonld) - MCP resource: `alpha://people/warren-e-buffett` at https://mcp.alpha.ac/mcp