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EXXON MOBIL CORP
$XOMLast close: $148.91(2026-04-24)BRK current position: 41,129,643 shares ($3.87B as of 2014-09-30)Quarters with activity: 5CUSIP: 30231G102
Price history with Berkshire transactions
InitiatedAddedTrimmedExited
XOM (indexed, 1× = first visible date)S&P 500 (indexed)Shares held (right axis)
Hover for daily price. Triangle markers show quarter-end Berkshire buy (▲ green) / sell (▼ orange/red) events from 13F-HR filings. Quarter-level granularity only — actual trade dates are not disclosed.
Berkshire's quarterly position history
| Quarter | Shares | Δ Shares | Action | Value (USD) | 13F |
|---|---|---|---|---|---|
| 2014-09-30 | 41,129,643 | — | held | $3,868.2M | View |
| 2014-06-30 | 41,129,643 | — | held | $4,140.9M | View |
| 2014-03-31 | 41,129,643 | — | held | $4,017.5M | View |
| 2013-12-31 | 41,129,643 | +1,040,272 | added | $4,162.3M | View |
| 2013-09-30 | 40,089,371 | +8,845,261 | added | $3,449.3M | View |
| 2013-06-30 | 31,244,110 | +30,822,310 | added | $2,822.9M | View |
| 2011-09-30 | 421,800 | — | held | $30.6M | View |
| 2011-06-30 | 421,800 | — | held | $34.3M | View |
| 2011-03-31 | 421,800 | — | held | $35.5M | View |
| 2010-12-31 | 421,800 | — | held | $30.8M | View |
| 2010-09-30 | 421,800 | — | held | $26.1M | View |
| 2010-06-30 | 421,800 | — | held | $24.1M | View |
| 2010-03-31 | 421,800 | — | held | $28.3M | View |
| 2009-12-31 | 421,800 | -854,490 | trimmed | $28.8M | View |
| 2009-09-30 | 1,276,290 | +1,276,290 | initiated | $87.6M | View |
Prices via Yahoo Finance. Berkshire position data from quarterly 13F-HR filings. 13F has a ~45-day filing lag and only covers long US-listed equity positions. Cost basis below is approximated from the quarter-end value at which shares were added (FIFO).