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BRK.B insider trading

BERKSHIRE HATHAWAY INC — open-market insider buys and $1M+ sells from SEC Forms 3, 4 and 5.
Insider buys · 24 mo
2
Bought · 24 mo
$501k
Buys · last 90 days
1 · $250k
Most recent buy
2026-08-13

Recent insider filings

FiledInsiderTypeSharesPriceValue
2026-08-13O'Sullivan Michael J.
See Remarks
Bought488$512.44$250k
2026-05-06O'Sullivan Michael J.
See Remarks
Bought536$467.44$251k

Most active insider buyers

InsiderRoleBuysTotal bought
O'Sullivan Michael J.See Remarks2$501k

See BRK.B on the chart

Every insider buy and sell for BRK.B plotted on the price, the full two-year history, cluster scores and daily updates — in the members area, $29/month. A free quarterly sample of the whole dataset needs no account.

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Data from the SEC EDGAR ownership filings, refreshed daily. Only open-market purchases (transaction code P) and sales of $1M or more are shown; grants, option exercises and tax withholding are excluded because they run on schedules set years earlier. Not investment advice.