Insider txns (12m)
3
Stock / equity
BRK.B BERKSHIRE HATHAWAY INC
Company profile, contracts and lobbying: BERKSHIRE HATHAWAY INC
BRK.B (BERKSHIRE HATHAWAY INC) has 3 disclosed insider transactions from 1 insider in the last 12 months (3 open-market buys, 0 sales, about $250K at reported prices) and 0 congressional trades from 0 members of Congress. The most recent disclosure was filed August 13, 2026.
Open-market buys / sales
3 / 0
Congress trades (12m)
0
Distinct filers (12m)
1
Insider transactions
| Filer | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source |
|---|---|---|---|---|---|---|---|---|---|
| O'Sullivan Michael J. | Buy P | August 12, 2026 | August 13, 2026 | 1d | 43 | $514 | $22K | indirect | Form 4 ↗ |
| O'Sullivan Michael J. | Buy P | August 12, 2026 | August 13, 2026 | 1d | 400 | $513 | $205K | indirect | Form 4 ↗ |
| O'Sullivan Michael J. | Buy P | August 12, 2026 | August 13, 2026 | 1d | 45 | $511 | $23K | indirect | Form 4 ↗ |
Congressional trades
No member of Congress has disclosed a trade in this ticker in the filings we have parsed (House filings since the job went live; Senate pending).
Who is filing
- O'Sullivan Michael J. — 3 transactions
Sources and method
Insider rows are Form 4 filings for this issuer from SEC EDGAR; congressional rows are periodic transaction reports parsed from the House Clerk (and Senate eFD when live). Values use the reported price for Form 4 and the disclosed range for Congress. See methodology and corrections.
Not investment advice. Disclosures are shown as filed and may lag the trade or be amended. No recommendation is made or implied.