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Becton Dickinson

$BDX
Last close: $74.10(2010-09-30)BRK current position: 1,889,889 shares ($0.14B as of 2010-09-30)Quarters with activity: 4CUSIP: 075887109
Delisted or non-tradable security. No daily market prices available for BDX. The chart below uses the IMPLIED price from each 13F filing (value ÷ shares), which gives one datapoint per quarter rather than a continuous price line. Buy/sell markers and the position-history table still reflect Berkshire's actual transactions.

Price history with Berkshire transactions

InitiatedAddedTrimmedExited
BDX (indexed, 1× = first visible date)Shares held (right axis)
0.95×1×1.05×1.1×200920100472K945K1M2MINITBuffettMungerGPT.com

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

QuarterSharesΔ SharesActionValue (USD)13F
2010-09-301,889,889—held$140MView
2010-06-301,889,889+145,761added$127.8MView
2010-03-311,744,128+244,128added$137.3MView
2009-12-311,500,000+300,000added$118.3MView
2009-09-301,200,000—held$83.7MView
2009-06-301,200,000+1,200,000initiated$85.6MView

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).