NYSE · Financial Services · Holders
Berkshire Hathaway (Class A) (BRK-A) Institutional Ownership & Insider Trading History
Top BRK-A institutional shareholders, filing changes, and Form 4 insider activity with filters for buys, sales, option exercises, gifts, and tax withholding.
Section freshness
Prices as of Oct 2, 4:00 PM EDT · Fundamentals checked Oct 3, 5:39 PM EDT · Statement period ended Jun 30, 2026
Ownership read
BRK-A insider transaction activity: Net selling.
Vinva Investment Management Ltd. is the largest institutional holder. 1 sale and 0 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-A
Directional bars ignore awards, gifts, conversions, and tax withholding rows.
Top holder
184.83K
Vinva Investment Management Ltd.
Insider transaction activity
Net selling
$1.55M sold / $0.0000 bought
Observations shown
11
10 holder / 1 insider
- Holder rows
- 10
- Yahoo Finance · Filing dates shown per row
- Increased / initiated
- 6
- 4 decreased · provider-reported changes
- Insider rows
- 1
- Yahoo Finance · Filing dates shown per row
Ownership concentration and transaction activity
- Top 10 reported holders
- 49.75% 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
Reported-holder cohort only; absence from a limited provider list does not establish an exit. Changes are provider-reported and are only comparable quarter over quarter when the position periods match.
Net shares sold: 2
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: 1
Top 10 institutional holders
Berkshire Hathaway (Class A) (BRK-A) 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 | Vinva Investment Management Ltd. | 37.8% | 184.83K | +100.00% | Position as of Jun 30, 2026Filing date unknown |
| 2 | 2.98% | 14.53K | -14.51% | Position as of Jun 30, 2026Filing date unknown | |
| 3 | First Manhattan Co. LLC | 2.83% | 13.80K | -1.19% | Position as of Jun 30, 2026Filing date unknown |
| 4 | 2.12% | 10.37K | +0.61% | Position as of Jun 30, 2026Filing date unknown | |
| 5 | Lester Murray Antman dba SimplyRich | 1.34% | 6.56K | +327900.00% | Position as of Jun 30, 2026Filing date unknown |
| 6 | Coldstream Capital Management, Inc. | 1.24% | 6.04K | +100633.32% | Position as of Jun 30, 2026Filing date unknown |
| 7 | 0.42% | 2.06K | +0.15% | Position as of Jun 30, 2026Filing date unknown | |
| 8 | HighTower Advisors, LLC | 0.40% | 1.95K | -2.99% | Position as of Jun 30, 2026Filing date unknown |
| 9 | Gardner Russo & Quinn, LLC | 0.29% | 1.43K | -1.92% | Position as of Jun 30, 2026Filing date unknown |
| 10 | Everett Harris & Co/CA/ | 0.29% | 1.42K | +0.14% | Position as of Jun 30, 2026Filing date unknown |
Recent insider transactions
Berkshire Hathaway (Class A) (BRK-A) 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 | Price | Value | Transaction date |
|---|---|---|---|---|---|---|---|
| 1 | WITMER MERYL B 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. | 2 | $775,884 | $1,551,767 | Mar 3, 2025 |
Frequently asked
Common questions.
Who are the largest BRK-A shareholders?
Vinva Investment Management Ltd. is the largest reported institutional holder of BRK-A, with 184,831 shares, or about 37.84% of shares outstanding.
What does the institutional filing activity show for BRK-A?
Berkshire Hathaway (Class A) has 10 institutional rows on file: 6 increased or initiated positions and 4 reduced them.
What insider transactions are available for BRK-A?
TECHi shows 1 dated BRK-A insider transactions through Mar 3, 2025, with transaction types kept separate so administrative actions are not presented as open-market trades.
Are BRK-A insiders buying or selling?
The displayed BRK-A activity reads Net selling: 1 sale and 0 purchases. Other transaction types remain separate.
Who is the most active reported BRK-A insider?
WITMER MERYL B has the largest absolute share movement in the displayed BRK-A filing rows, totaling 2 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.
How to use this page
Use this to check who owns the float and whether insiders are active.
Best for Institutional concentration, insider transaction pattern, and float context.
Weak when Filings are delayed or transactions are administrative rather than economic.
Market closed
Regular hours: 9:30 AM–4:00 PM America/New_York
Next open: 2026-10-05 · 9:30 AM America/New_York
Exchange calendar includes scheduled holidays and early closes. Extended-session prices appear separately only when supplied by the quote source.
Shortcuts
/ search · W watchlist · C compare · F financials · E earnings · N news · T technicals · Esc close