O'Sullivan Michael J. 4

What Happened
Michael J. O'Sullivan, Senior Vice President, General Counsel and Secretary of Berkshire Hathaway (BRK.B), reported open-market purchases on 2026-05-06 totaling 536 shares. He acquired 483 shares at a weighted-average price of $467.13 (range $467.07–$467.20) for approximately $225,624, and 53 shares at $470.22 for $24,922 — total consideration about $250,546. These transactions are purchases (insider buying).

Key Details

• Transaction date: 2026-05-06 (filed 2026-05-06) — filing appears timely.
• Trades: 483 shares @ $467.13 (weighted average; purchases executed at $467.07–$467.20) and 53 shares @ $470.22.
• Total shares bought: 536; total value: ~$250,546.
• Shares held after transaction: Not disclosed in the provided filing.
• Footnotes: F1 notes the $467.13 price is a weighted average and the filer can provide a breakdown of individual trade prices on request; F2 indicates some shares are held in a living trust of which the reporting person is trustee.
• Transaction code: P = Purchase.

Context
Open-market purchases by corporate officers are factual data points that some investors view as a positive signal, but they do not prove intent or future company performance. This filing reports direct purchases (not option exercises, gifts, or tax withholdings) and does not indicate a 10% owner change.