Insider Trading
Current insider transactions (SEC Form 4) — buys and sells by officers, directors, and major shareholders.
| Ticker | Insider | Title | Date | Transaction | Price ($) | Shares | Value ($) | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|
| BRK-A | O'Sullivan Michael J. | See Remarks | 08/12/2026 | Kauf | 513.61 | 43 | 22,085 | Form 4 |
| BRK-A | O'Sullivan Michael J. | See Remarks | 08/12/2026 | Kauf | 512.52 | 400 | 205,008 | Form 4 |
| BRK-A | O'Sullivan Michael J. | See Remarks | 08/12/2026 | Kauf | 510.64 | 45 | 22,979 | Form 4 |
A compact market overview — not investment advice. Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q).