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PFIZER INC
$PFELast close: $27.00(2026-04-24)BRK current position: 3,711,780 shares ($0.14B as of 2020-09-30)Quarters with activity: 1CUSIP: 717081103
Price history with Berkshire transactions
InitiatedAddedTrimmedExited
PFE (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 |
|---|---|---|---|---|---|
| 2020-09-30 | 3,711,780 | +3,711,780 | initiated | $136.2M | 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).