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INTERNATIONAL BUSINESS
$IBMLast close: $231.98(2026-04-24)BRK current position: 2,048,045 shares ($0.31B as of 2017-12-31)Quarters with activity: 12CUSIP: 459200101
Price history with Berkshire transactions
InitiatedAddedTrimmedExited
IBMS&P 500 (right axis, $)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 |
|---|---|---|---|---|---|
| 2017-12-31 | 2,048,045 | -34,978,653 | trimmed | $314.2M | View |
| 2017-09-30 | 37,026,698 | -17,057,975 | trimmed | $5,371.8M | View |
| 2017-06-30 | 54,084,673 | -10,477,282 | trimmed | $8,319.8M | View |
| 2017-03-31 | 64,561,955 | -16,670,348 | trimmed | $11,242.8M | View |
| 2016-12-31 | 81,232,303 | — | held | $13,483.8M | View |
| 2016-09-30 | 81,232,303 | — | held | $12,903.8M | View |
| 2016-06-30 | 81,232,303 | — | held | $12,329.4M | View |
| 2016-03-31 | 81,232,303 | +198,853 | added | $12,302.6M | View |
| 2015-12-31 | 81,033,450 | — | held | $11,151.8M | View |
| 2015-09-30 | 81,033,450 | +1,468,335 | added | $11,747.4M | View |
| 2015-06-30 | 79,565,115 | — | held | $12,942.1M | View |
| 2015-03-31 | 79,565,115 | +2,593,298 | added | $12,770.2M | View |
| 2014-12-31 | 76,971,817 | +6,493,805 | added | $12,349.4M | View |
| 2014-09-30 | 70,478,012 | +304,034 | added | $13,378.8M | View |
| 2014-06-30 | 70,173,978 | +1,818,894 | added | $12,720.4M | View |
| 2014-03-31 | 68,355,084 | +233,100 | added | $13,157.7M | View |
| 2013-12-31 | 68,121,984 | — | held | $12,777.6M | View |
| 2013-09-30 | 68,121,984 | — | held | $12,614.8M | View |
| 2013-06-30 | 68,121,984 | — | held | $13,018.8M | View |
| 2013-03-31 | 68,121,984 | +68,121,984 | initiated | $14,530.4M | 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).