Buffett Warren E
SEC-identified person · CIK 315090 Identifier-verified
Public-company roles (from insider filings)
| Company | Capacity as filed | Filings |
|---|---|---|
| Berkshire Hathaway INC BRKB | Director · Chairman of the Board | filed 2006–2026 |
| Davita INC. DVA | Officer | filed 2012–2026 |
| Liberty Live Holdings, Inc. LLYVK | Officer | filed 2026–2026 |
| Sirius XM Radio INC. SIRI | Officer | filed 2024–2025 |
| Verisign INC/CA VRSN | Officer | filed 2014–2025 |
| Occidental Petroleum Corp /DE/ oxy | Officer | filed 2022–2025 |
| Bank of America Corp /DE/ bac | Officer | filed 2019–2024 |
| Liberty Spinco, Inc. LSXMK | Officer | filed 2017–2024 |
| Liberty Media LLC LSXMK | Officer | filed 2024–2024 |
| HP INC HPQ | Officer | filed 2022–2023 |
| Scripps E W CO /DE SSP | Officer | filed 2021–2021 |
| Snowflake Inc. SNOW | Officer | filed 2020–2020 |
| Axalta Coating Systems Ltd. AXTA | Officer | filed 2018–2020 |
| Liberty Global plc LBTYK | Officer | filed 2020–2020 |
| US Bancorp \DE\ USB | Officer | filed 2020–2020 |
| Bank of New York Mellon Corp bk | Officer | filed 2020–2020 |
| Delta AIR Lines, INC. DALWI | Officer | filed 2019–2020 |
| Southwest Airlines CO LUV | Officer | filed 2019–2020 |
| Phillips 66 PSX | Officer | filed 2015–2018 |
| Wells Fargo & Company/MN WFC | Officer | filed 2016–2017 |
| Symetra Financial Corp SYA | Officer | filed 2010–2016 |
| Kraft Heinz Co KHZ | Director | filed 2015–2015 |
| Washington Post CO [GHC] | Officer | filed 2014–2014 |
| USG Corp usg | Officer | filed 2006–2014 |
| Media General INC NYSE: MEG | Officer | filed 2012–2013 |
| Moodys Corp /DE/ MCO | Officer | filed 2009–2013 |
| Wesco Financial Corp WSC | Officer | filed 2011–2011 |
| Burlington Northern Santa FE, LLC BNI | Director | filed 2007–2010 |
| White Mountains Insurance Group LTD WTM | Officer | filed 2008–2008 |
| Coca Cola CO ko | Director | filed 2006–2006 |
| Ameriprise Financial INC AMP | Officer | filed 2006–2006 |
All roles under one Commission-assigned identifier - the same person by the SEC's own record, not by name matching. From the SEC's insider-transaction filings (Forms 3, 4 and 5). Every reporting director and officer carries a Commission-assigned identifier (CIK), so these footprints are identifier-verified - no name matching involved. Insiders file when they transact, so dates are filing dates: "last filed" never means "served until". This layer is not yet joined to the nonprofit register - identity joins ship only after independent review.