Insider txns (12m)
33
Stock / equity
BRK-B BERKSHIRE HATHAWAY INC
- Company
- BERKSHIRE HATHAWAY INC
- Security
- Equity
- Size, estimated from filings
- Mega cap ($200B and up)
- Insiders on record
- 5
- Latest trade on record
- October 21, 2026
BRK-B (BERKSHIRE HATHAWAY INC) has 33 disclosed insider transactions from 5 insiders in the last 12 months (20 open-market buys, 0 sales, about $13.4M at reported prices) and 0 congressional trades from 0 members of Congress. The most recent disclosure was filed October 23, 2026.
Open-market buys / sales
20 / 0
Congress trades (12m)
0
Distinct filers (12m)
5
Share price
Price and chart by TradingView for BERKSHIRE HATHAWAY INC. US share prices here are delayed, not real-time. The trade records on this page come from government filings, not from this chart.
BRK-B in charts
Who is trading this stock
Which people account for the buying and selling over the last 12 months?
BoughtSold
1 person accounts for the disclosed buying and selling in BRK-B over the last 12 months; the most active is O'Sullivan Michael J. with $251K.
Insider holdings over time
Is an insider building or unwinding a position? Shares held directly after each filing.
Jain AjitGUYMAN CHARLOTTE
Jain Ajit reported 298 shares held after the latest filing, against 352 at the first on record.
Insiders trading BRK-B
Everyone who filed a Form 4 for this ticker, by number of rows on record. "Bought" and "sold" count open-market purchases (code P) and sales only; awards, option exercises and shares withheld for tax are in the row count but not in those two columns.
| Insider | Role | Rows | Bought | Sold | Value bought | Value sold | Latest |
|---|---|---|---|---|---|---|---|
| Abel Gregory E. | See Remarks | 18 | 0 | 0 | — | — | March 4, 2026 |
| BUFFETT WARREN E | Director | 7 | 0 | 0 | — | — | March 17, 2026 |
| GUYMAN CHARLOTTE | Director | 4 | 0 | 0 | — | — | May 14, 2026 |
| Jain Ajit | Vice Chairman | 3 | 0 | 0 | — | — | October 21, 2026 |
| O'Sullivan Michael J. | See Remarks | 2 | 2 | 0 | $251K | — | May 6, 2026 |
What kind of transactions these are 3 Form 4 codes
| Code | Meaning | Rows | Shares | Value at reported prices |
|---|---|---|---|---|
| P | Open-market purchase | 20 | 557 | $13.4M |
| G | Gift | 10 | 2,701,059 | — |
| C | Conversion of a derivative | 4 | 2,703,301 | — |
What each code means: Form 4 transaction codes.
Insider transactions
| Filer | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| Jain Ajit | Other G | October 21, 2026 | October 23, 2026 | 2d | 19 | — | — | Form 4 ↗ | ||
| GUYMAN CHARLOTTE | Other G | May 14, 2026 | May 18, 2026 | 4d | 574 | — | — | Form 4 ↗ | ||
| O'Sullivan Michael J. | Buy P | May 6, 2026 | May 6, 2026 | 0d | 53 | $470 | $25K | indirect | Form 4 ↗ | |
| O'Sullivan Michael J. | Buy P | May 6, 2026 | May 6, 2026 | 0d | 483 | $467 | $226K | indirect | Form 4 ↗ | |
| Jain Ajit | Other G | March 27, 2026 | March 27, 2026 | 0d | 22 | — | — | Form 4 ↗ | ||
| BUFFETT WARREN E | Other G | March 17, 2026 | March 19, 2026 | 2d | 2 | — | — | derivative | Form 4 ↗ | |
| Abel Gregory E. | Option / conversion P | March 4, 2026 | March 5, 2026 | 1d | 1 | $733,300 | $733K | indirectderivative | Form 4 ↗ | |
| Abel Gregory E. | Option / conversion P | March 4, 2026 | March 5, 2026 | 1d | 1 | $733,100 | $733K | indirectderivative | Form 4 ↗ | |
| Abel Gregory E. | Option / conversion P | March 4, 2026 | March 5, 2026 | 1d | 1 | $732,500 | $733K | indirectderivative | Form 4 ↗ | |
| Abel Gregory E. | Option / conversion P | March 4, 2026 | March 5, 2026 | 1d | 2 | $366,000 | $732K | indirectderivative | Form 4 ↗ | |
| Abel Gregory E. | Option / conversion P | March 4, 2026 | March 5, 2026 | 1d | 1 | $731,350 | $731K | indirectderivative | Form 4 ↗ | |
| Abel Gregory E. | Option / conversion P | March 4, 2026 | March 5, 2026 | 1d | 1 | $730,707 | $731K | indirectderivative | Form 4 ↗ | |
| Abel Gregory E. | Option / conversion P | March 4, 2026 | March 5, 2026 | 1d | 1 | $730,700 | $731K | indirectderivative | Form 4 ↗ | |
| Abel Gregory E. | Option / conversion P | March 4, 2026 | March 5, 2026 | 1d | 1 | $730,145 | $730K | indirectderivative | Form 4 ↗ | |
| Abel Gregory E. | Option / conversion P | March 4, 2026 | March 5, 2026 | 1d | 1 | $729,000 | $729K | indirectderivative | Form 4 ↗ | |
| Abel Gregory E. | Option / conversion P | March 4, 2026 | March 5, 2026 | 1d | 2 | $363,765 | $728K | indirectderivative | Form 4 ↗ | |
| Abel Gregory E. | Option / conversion P | March 4, 2026 | March 5, 2026 | 1d | 1 | $727,453 | $727K | indirectderivative | Form 4 ↗ | |
| Abel Gregory E. | Option / conversion P | March 4, 2026 | March 5, 2026 | 1d | 2 | $363,593 | $727K | indirectderivative | Form 4 ↗ | |
| Abel Gregory E. | Option / conversion P | March 4, 2026 | March 5, 2026 | 1d | 1 | $726,995 | $727K | indirectderivative | Form 4 ↗ | |
| Abel Gregory E. | Option / conversion P | March 4, 2026 | March 5, 2026 | 1d | 1 | $726,408 | $726K | indirectderivative | Form 4 ↗ | |
| Abel Gregory E. | Option / conversion P | March 4, 2026 | March 5, 2026 | 1d | 1 | $726,079 | $726K | indirectderivative | Form 4 ↗ | |
| Abel Gregory E. | Option / conversion P | March 4, 2026 | March 5, 2026 | 1d | 1 | $726,000 | $726K | indirectderivative | Form 4 ↗ | |
| Abel Gregory E. | Option / conversion P | March 4, 2026 | March 5, 2026 | 1d | 1 | $725,995 | $726K | indirectderivative | Form 4 ↗ | |
| Abel Gregory E. | Option / conversion P | March 4, 2026 | March 5, 2026 | 1d | 1 | $725,210 | $725K | indirectderivative | Form 4 ↗ | |
| BUFFETT WARREN E | Exchange C | November 10, 2025 | November 12, 2025 | 2d | 1,800 | — | — | derivative | Form 4 ↗ | |
| BUFFETT WARREN E | Other G | November 10, 2025 | November 12, 2025 | 2d | 400,000 | — | — | Form 4 ↗ | ||
| BUFFETT WARREN E | Other G | November 10, 2025 | November 12, 2025 | 2d | 400,000 | — | — | Form 4 ↗ | ||
| BUFFETT WARREN E | Other G | November 10, 2025 | November 12, 2025 | 2d | 400,000 | — | — | Form 4 ↗ | ||
| BUFFETT WARREN E | Other G | November 10, 2025 | November 12, 2025 | 2d | 1,500,000 | — | — | Form 4 ↗ | ||
| BUFFETT WARREN E | Exchange C | November 10, 2025 | November 12, 2025 | 2d | 2,700,000 | — | — | Form 4 ↗ | ||
| GUYMAN CHARLOTTE | Exchange C | November 3, 2025 | November 5, 2025 | 2d | 1 | — | — | derivative | Form 4 ↗ | |
| GUYMAN CHARLOTTE | Other G | November 3, 2025 | November 5, 2025 | 2d | 410 | — | — | Form 4 ↗ | ||
| GUYMAN CHARLOTTE | Exchange C | November 3, 2025 | November 5, 2025 | 2d | 1,500 | — | — | Form 4 ↗ | ||
| Jain Ajit | Other G | October 22, 2025 | October 24, 2025 | 2d | 32 | — | — | Form 4 ↗ |
Congressional trades
No member of Congress has disclosed a trade in this ticker in the filings we have parsed.
Related stocks
Tickers traded by the same people who traded BRK-B, by number of filers in common. It shows overlap in public filings and nothing else.
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- What disclosure data cannot tell you Filings are late by design: up to 45 days for Congress, two business days for insiders.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| SEC EDGAR, Form 4 | 9 | 34 | October 24, 2025 | October 23, 2026 | Form 4 list on EDGAR |
Site built October 27, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Insider rows are Form 4 filings for this issuer from SEC EDGAR; congressional rows are periodic transaction reports parsed from the House Clerk and the Senate eFD. 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.