WARREN E BUFFETT
CIK 315090 · Chairman and CEO · last filed 2026-07-15
WARREN E BUFFETT is a Chairman and CEO who has filed 139 SEC Form 4 insider transactions across 14 companies since 2007. The most recent filing, for BRK.B, was dated Jul 15, 2026. Across all open-market trades the lifetime net is +$12.24B, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $110.07B across reported positions. 368 SEC filings were submitted jointly with BERKSHIRE HATHAWAY INC.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$110.07B
14
139
$12.24B
Filer Profile
STE 1440
OMAHA, NE 68131
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| BRK.B | Chairman and CEO | 12,001,162 | $505.48 | $6.07B | $0 | 38 | 2026-07-15 |
| DVA | 10%+ Owner | 28,880,209 | $178.47 | $5.15B | -$511.73M | 20 | 2026-05-05 |
| SIRI | 10%+ Owner | 121,754,529 | $25.86 | $3.15B | $708.75M | 4 | 2025-08-04 |
| VRSN | 10%+ Owner | 13,289,080 | $287.25 | $3.82B | $130.16M | 3 | 2025-01-03 |
| BAC | 10%+ Owner | 766,305,462 | $56.70 | $43.45B | -$6.79B | 7 | 2024-10-17 |
| FWONK | 10%+ Owner | 0 | $94.61 | $0 | $0 | 1 | 2024-09-12 |
| Liberty Media Corp (LSXMK) Delisted | 10%+ Owner | 4,986,588 | $22.29 | $111.15M | $2.28B | 25 | 2024-06-20 |
| OXY.WS | 10%+ Owner | 238,533,189 | $34.85 | $8.31B | $14.65B | 10 | 2023-12-13 |
| HPQ | 10%+ Owner | 102,519,035 | $31.30 | $3.21B | -$503.53M | 2 | 2023-10-02 |
| Liberty Media Corp (LSXMR) Delisted | 10%+ Owner | 35,692,115 | — | — | $336.62M | 3 | 2020-06-03 |
| LUV | 10%+ Owner | 52,644,964 | $42.68 | $2.25B | -$148.69M | 1 | 2020-04-03 |
| PSX | 10%+ Owner | 80,689,892 | $255.75 | $20.64B | $2.49B | 13 | 2016-09-19 |
| MCO | 10%+ Owner | 29,923,326 | $468.70 | $14.03B | -$1.01B | 2 | 2010-09-14 |
| BURLINGTON NORTHERN SANTA FE, LLC (BNI) Delisted | 10%+ Owner | 70,089,029 | — | — | $607.43M | 7 | 2008-12-12 |
Recent Filings
139 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-07-15 | BRK.B | Mixed | — | $0 | EDGAR |
| 2026-05-26 | BRK.B | Gift (G) | −160 | $0 | EDGAR |
| 2026-05-20 | BRK.B | Mixed | +208 | $0 | EDGAR |
| 2026-05-05 | DVA | Sell (S) | −2,440,752 | -$365.73M | EDGAR |
| 2026-03-19 | BRK.B | Gift (G) | — | $0 | EDGAR |
| 2025-11-12 | BRK.B | Mixed | — | $0 | EDGAR |
| 2025-08-04 | DVA | Sell (S) | −3,271,924 | -$460.05M | EDGAR |
| 2025-08-04 | SIRI | Buy (P) | +10,060,850 | $212.91M | EDGAR |
| 2025-07-16 | BRK.B | Gift (G) | −30 | $0 | EDGAR |
| 2025-06-30 | BRK.B | Mixed | +179 | $0 | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.