NYSE · Financial Services · Holders
Berkshire Hathaway (Class B) (BRK-B) Institutional Ownership & Insider Trading History
Top BRK-B institutional shareholders, filing changes, and Form 4 insider activity with filters for buys, sales, option exercises, gifts, and tax withholding.
- Last confirmed price
- $502.65+0.43%
- Oct 2, 2026, 4:00 PM EDT · Prices may be delayed
Data dates
Prices as of Oct 2, 4:00 PM EDT · Fundamentals checked Oct 4, 9:55 PM EDT · Statement period ended Jun 30, 2026
Ownership read
BRK-B insider transaction activity: Mixed, sale-heavy.
Blackrock Inc. is the largest institutional holder. 3 sales and 2 purchases appear in the recent Form 4 filings. Use the filters below to separate open-market activity from option exercises, gifts, awards, and tax withholding.
Insider flow
BRK-B
Directional bars ignore awards, gifts, conversions, and tax withholding rows.
Top holder
121.18M
Blackrock Inc.
Insider transaction activity
Mixed, sale-heavy
$28.4M sold / $500.62K bought
Observations shown
47
10 holder / 37 insider
- Holder rows
- 10
- Yahoo Finance · Filing dates shown per row
- Increased / initiated
- 5
- 5 decreased · provider-reported changes
- Insider rows
- 37
- Yahoo Finance · Filing dates shown per row
Percent outstanding uses the quote share count, market cap divided by the share price (2.14B shares). The holder feed's percentages used a different share count, so they are not the figures on this page.
Ownership concentration and transaction activity
- Top 10 reported holders
- 21.61% outstanding
- Changes with share-count history
- Prior-position data unavailable
- New / exited positions
- 0 / 0 explicitly reported
- Largest increase with share-count history
- Prior share counts unavailable
These changes cover the holders shown. A holder missing from this list may still own shares. Compare positions from the same reporting quarters.
Net shares sold: 55,676
Sale-code S shares minus purchase-code P shares in this sample. Includes disclosed plans and unknown plan status; excludes grants, gifts, exercises and withholding. This is activity, not sentiment.
- Purchase / sale; plan unknown: 5
- Gift: 24
- Other / unclassified: 8
Top 10 institutional holders
Berkshire Hathaway (Class B) (BRK-B) institutional ownership
Ranked by reported share count, with position changes and separate position and filing dates where ownership data supplies them.
| # | Institution | % held | Shares | Change % | Position / filing date |
|---|---|---|---|---|---|
| 1 | 5.66% | 121.18M | -0.02% | Position as of Jun 30, 2026Filing date unknown | |
| 2 | 5.53% | 118.36M | +0.80% | Position as of Jun 30, 2026Filing date unknown | |
| 3 | 3.54% | 75.75M | +2.23% | Position as of Jun 30, 2026Filing date unknown | |
| 4 | 1.94% | 41.53M | +0.89% | Position as of Jun 30, 2026Filing date unknown | |
| 5 | 1.25% | 26.67M | -0.70% | Position as of Jun 30, 2026Filing date unknown | |
| 6 | 1.14% | 24.38M | +2.74% | Position as of Jun 30, 2026Filing date unknown | |
| 7 | 0.72% | 15.44M | -0.32% | Position as of Jun 30, 2026Filing date unknown | |
| 8 | Gates Foundation Trust | 0.69% | 14.69M | -13.83% | Position as of Jun 30, 2026Filing date unknown |
| 9 | 0.61% | 12.97M | -20.71% | Position as of Jun 30, 2026Filing date unknown | |
| 10 | 0.54% | 11.57M | +1.66% | Position as of Jun 30, 2026Filing date unknown |
Recent insider transactions
Berkshire Hathaway (Class B) (BRK-B) Form 4 filings
Action codes are translated so open-market buys and sales are separate from awards, gifts, conversions, and tax withholding.
| # | Insider | % company | Action | Shares | Transaction date |
|---|---|---|---|---|---|
| 1 | JAIN AJIT Officer and Director | <0.01% | SaleOpen-market or direct sale reported on Form 4.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 39.70K | Sep 28, 2026 |
| 2 | JAIN AJIT Officer and Director | <0.01% | Stock GiftTransaction code reported in the data source. Check the original Form 4 filing for details.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 10 | Sep 3, 2026 |
| 3 | O'SULLIVAN MICHAEL J General Counsel | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 488 | Aug 12, 2026 |
| 4 | BUFFETT WARREN E Director and Beneficial Owner of more than 10% of a Class of Security | 0.56% | Stock GiftTransaction code reported in the data source. Check the original Form 4 filing for details.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 12.00M | Jul 14, 2026 |
| 5 | BUFFETT WARREN E Director and Beneficial Owner of more than 10% of a Class of Security | 0.56% | OtherTransaction code reported in the data source. Check the original Form 4 filing for details.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 12.00M | Jul 14, 2026 |
| 6 | JAIN AJIT Officer and Director | <0.01% | Stock GiftTransaction code reported in the data source. Check the original Form 4 filing for details.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 3 | Jul 1, 2026 |
| 7 | BUFFETT WARREN E Director and Beneficial Owner of more than 10% of a Class of Security | <0.01% | Stock GiftTransaction code reported in the data source. Check the original Form 4 filing for details.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 160 | May 22, 2026 |
| 8 | GUYMAN CHARLOTTE M Director | <0.01% | Stock GiftTransaction code reported in the data source. Check the original Form 4 filing for details.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 574 | May 14, 2026 |
| 9 | O'SULLIVAN MICHAEL J General Counsel | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 536 | May 6, 2026 |
| 10 | JAIN AJIT Officer and Director | <0.01% | Stock GiftTransaction code reported in the data source. Check the original Form 4 filing for details.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 22 | Mar 27, 2026 |
| 11 | BUFFETT WARREN E Chief Executive Officer | 0.13% | Stock GiftTransaction code reported in the data source. Check the original Form 4 filing for details.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 2.70M | Nov 10, 2025 |
| 12 | BUFFETT WARREN E Chief Executive Officer | 0.13% | OtherTransaction code reported in the data source. Check the original Form 4 filing for details.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 2.70M | Nov 10, 2025 |
Frequently asked
Questions about this quote
Who are the largest BRK-B shareholders?
Blackrock Inc. is the largest reported institutional holder of BRK-B, with 121.18 million shares, or about 5.66% of shares outstanding.
What does the institutional filing activity show for BRK-B?
Berkshire Hathaway (Class B) has 10 institutional rows on file: 5 increased or initiated positions and 5 reduced them.
What insider transactions are available for BRK-B?
TECHi shows 37 dated BRK-B insider transactions through Sep 28, 2026, with transaction types kept separate so administrative actions are not presented as open-market trades.
Are BRK-B insiders buying or selling?
The displayed BRK-B activity reads Mixed, sale-heavy: 3 sales and 2 purchases. Other transaction types remain separate.
Who is the most active reported BRK-B insider?
BUFFETT WARREN E has the largest absolute share movement in the displayed BRK-B filing rows, totaling 58.93 million shares. The action labels provide the transaction context.
All data sources
Search the dated figures used for this view. Each entry identifies its units, reporting period and calculation status.
What this page answers
Check who owns the float and whether insiders are active.
Explore Institutional concentration, insider transaction pattern, and float context.
Keep in mind Filings are delayed or transactions are administrative rather than economic.
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Next open: 2026-10-05 · 9:30 AM America/New_York
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