BRK-B insider trading — Berkshire Hathaway Inc
Over the last 90 days, insiders at Berkshire Hathaway Inc (BRK-B) made 1 open-market purchase worth $250K and 0 open-market sales worth $0, making them net buyers by $250K. The largest purchase was by O'Sullivan Michael J. (See Remarks), who bought 488 shares for $250K on Aug 12, 2026.
Updated Oct 16, 2026.
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Recent BRK-B insider transactions
Every Form 4 filed by Berkshire Hathaway Inc officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Aug 12, 2026 | O'Sullivan Michael J. | See Remarks | P · Purchase | Indirect | 488 | $512.44 | $250K | Form 4 |
BRK-B insider trading FAQ
Are insiders buying BRK-B stock?
Yes. In the last 90 days, Berkshire Hathaway Inc insiders made 1 open-market purchase totaling $250K, and no open-market sales. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading BRK-B?
Recent buyers: O'Sullivan Michael J..
Where does BRK-B insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.