Berkshire Hathaway-A BRK.A
$856,612.00 −$88.01 (-0.01%)
Market closed · Nov 9, 4:00 am ET · Last extended-hours $855,999.77 -0.07%
Open$843,280.00
Prev close$856,700.01
Day range$843,280.00 – $862,300.00
Volume169
Market cap$1.22T
P/E (TTM)14.4
Dividend yield–
Ownership & positioning
Who holds it, who is betting against it, and where the big money is moving
Institutional ownership52.3%+0.30 pts vs. prior quarter
Institutions holding5,673+10 vs. prior quarter
Insider trades (recent)10 buys / 38 sellsNet selling
Short interest0.01% of floatDays to cover 1.0 · as of 15 Oct 2026
Short-sale volume share3.3%5-day average of daily volume
Short-sale volume as % of daily volume
Large-order net flow, last 20 sessions
Net of large-order buying minus selling, in USD. Over this window: +$25.34M (9 inflow days, 11 outflow days).
Net flow by order size, last 20 sessions
Super/Big orders approximate institutional-size trades; Mid/Small approximate retail-size trades. Net buy minus sell value in each bucket, summed over the window.
The five largest holders on file together own 30.5% of shares outstanding.
Largest holders
By investor type
Reported short interest has held roughly steady near 0.01% of float over the last 6 biweekly reports (31 Jul 2026 to 15 Oct 2026).
Recent institutional activity
| Holder | Type | Period | Share change | New stake |
|---|---|---|---|---|
| Assenagon Asset Management S.A. | Mutual Fund | 2026/Q3 | +807 | 0.2% |
| Capital Research | Mutual Fund | 2026/Q3 | +1,556 | 0.3% |
| Wellington Management Group | Mutual Fund | 2026/Q3 | +1,316 | 0.2% |
| State Street Global Advisors | Mutual Fund | 2026/Q3 | +1,083 | 3.6% |
| D. E. Shaw & Co., L.P. | Hedge Fund | 2026/Q3 | +968 | 0.1% |
| Assenagon Asset Management S.A. | Mutual Fund | 2026/Q3 | +694 | 0.2% |
| Brewin Dolphin Wealth Management Limited | Mutual Fund | 2026/Q3 | +623 | 0.1% |
| Vanguard Capital Management, LLC | Mutual Fund | 2026/Q3 | +616 | 6.1% |
| National Bank Investments Inc. | Mutual Fund | 2026/Q3 | +582 | 0.1% |
| Yacktman Asset Management LP | Mutual Fund | 2026/Q3 | +564 | 0.1% |
| AQR Capital Management | Hedge Fund | 2026/Q3 | +487 | 0.1% |
| Vanguard Portfolio Management, LLC | Mutual Fund | 2026/Q3 | +437 | 1.3% |
| Two Sigma Investments, LP | Hedge Fund | 2026/Q3 | +436 | 0.1% |
| Citigroup Inc. | Public Company | 2026/Q3 | +435 | 0.1% |
| SG Americas Securities, LLC | Private Company | 2026/Q3 | +404 | 0.1% |
Institutional buy/sell activity by reporting period, largest moves first.
Insider transactions
| Date | Insider | Title | Transaction | Shares | Price | Held after |
|---|---|---|---|---|---|---|
| 20 Oct 2026 | Ajit Jain | Vice Chairman of Insurance Operations & Director | Other Disposition | -19 | – | 298 |
| 2 Sep 2026 | Ajit Jain | Vice Chairman of Insurance Operations & Director | Other Disposition | -10 | – | 317 |
| 11 Aug 2026 | Michael O'Sullivan | General Counsel | Open Market Acquisition | +488 | $513.61 | 1,151 |
| 11 Aug 2026 | Charles Chang | Senior Vice President | Open Market Acquisition | +2 | $765,189.94 | 8 |
| 13 Jul 2026 | Warren Buffett | Former Chairperson | Derivative Exercise and Sale | -12,000,000 | – | 1,162 |
| 30 Jun 2026 | Ajit Jain | Vice Chairman of Insurance Operations & Director | Other Disposition | -3 | – | 327 |
| 31 May 2026 | Charles Chang | Senior Vice President | Initial Statement of Beneficial | +0 | – | 6 |
| 21 May 2026 | Warren Buffett | Former Chairperson | Other Disposition | -160 | – | 1,162 |
| 17 May 2026 | Warren Buffett | Former Chairperson | Derivative Exercise and Sale | -37,292 | – | 1,322 |
| 17 May 2026 | Warren Buffett | Former Chairperson | Derivative Exercise and Retained | +208 | – | 1,322 |
| 13 May 2026 | Charlotte Guyman | Independent Director | Other Disposition | -574 | – | 2,888 |
| 5 May 2026 | Michael O'Sullivan | General Counsel | Open Market Acquisition | +536 | $470.22 | 663 |
| 2 May 2026 | Michael O'Sullivan | General Counsel | Initial Statement of Beneficial | +0 | – | 127 |
| 26 Mar 2026 | Ajit Jain | Vice Chairman of Insurance Operations & Director | Other Disposition | -22 | – | 330 |
| 16 Mar 2026 | Warren Buffett | Former Chairperson | Other Disposition | -2 | – | 196,315 |
| 3 Mar 2026 | Gregory Abel | Chief Executive Officer | Open Market Acquisition | +21 | $733,300.00 | 249 |
| 9 Nov 2025 | Warren Buffett | Former Chairperson | Derivative Exercise and Sale | -2,700,000 | – | 1,114 |
| 2 Nov 2025 | Charlotte Guyman | Independent Director | Derivative Exercise and Sale | -410 | – | 3,462 |
| 2 Nov 2025 | Charlotte Guyman | Independent Director | Derivative Exercise and Retained | +1,090 | – | 3,462 |
| 21 Oct 2025 | Ajit Jain | Vice Chairman of Insurance Operations & Director | Other Disposition | -32 | – | 352 |
From Form 4/Form 144 filings. Negative share counts are disposals (sales, gifts, or shares withheld for taxes); positive are acquisitions.
Short interest, by report
| Report date | Shares short | % of float | Days to cover |
|---|---|---|---|
| 15 Oct 2026 | 155 | 0.0% | 1.0 |
| 30 Sep 2026 | 177 | 0.0% | 1.0 |
| 15 Sep 2026 | 225 | 0.0% | 1.2 |
| 31 Aug 2026 | 173 | 0.0% | 1.3 |
| 14 Aug 2026 | 154 | 0.0% | 1.0 |
| 31 Jul 2026 | 161 | 0.0% | 1.0 |
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