Price history
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CB
Reviewed research will appear here when it is published.
| Portfolio Manager | Recent activity | Shares | Value | Portfolio |
|---|---|---|---|---|
| Berkshire Hathaway Inc. | CBUnchanged | 34,249,183 | $11,162,836,000 | 4.24% |
Long-term company research
Research pending
Fundamental research pending
Reviewed company research will appear here when available.
Insider activity
Open-market purchases and sales only.
| Date | Insider | Type | Shares | Price | Value | Source |
|---|---|---|---|---|---|---|
| 2026-07-28 | Wayland Joseph F | Sale | 8,502 | $365 | $3.1M | SEC ↗ |
| 2026-06-08 | Ortega Juan Luis | Sale | 3,886 | $322 | $1.3M | SEC ↗ |
| 2026-05-27 | Keogh John W | Sale | 20,176 | $321 | $6.5M | SEC ↗ |
| 2026-05-27 | Keogh John W | Sale | 2,824 | $322 | $909,185 | SEC ↗ |
| 2026-05-21 | ATIEH MICHAEL G | Sale | 578 | $330 | $190,468 | SEC ↗ |
| 2026-03-19 | Steimer Olivier | Sale | 2,000 | $329 | $658,600 | SEC ↗ |
| 2026-03-06 | Ohsiek George F. | Sale | 770 | $325 | $250,408 | SEC ↗ |
| 2026-03-04 | Johns Bryce L. | Sale | 1,500 | $337 | $504,925 | SEC ↗ |
| 2026-03-03 | Wayland Joseph F | Sale | 7,645 | $336 | $2.6M | SEC ↗ |
| 2026-02-13 | Ohsiek George F. | Sale | 3,900 | $324 | $1.3M | SEC ↗ |
| 2026-02-12 | Ohsiek George F. | Sale | 1,240 | $329 | $407,923 | SEC ↗ |
| 2026-02-12 | GREENBERG EVAN G | Sale | 14,925 | $335 | $5.0M | SEC ↗ |
| 2026-02-06 | BOROUGHS TIMOTHY ALAN | Sale | 13,181 | $332 | $4.4M | SEC ↗ |
| 2026-02-06 | BOROUGHS TIMOTHY ALAN | Sale | 14,636 | $332 | $4.9M | SEC ↗ |
| 2026-02-05 | GREENBERG EVAN G | Sale | 15,060 | $331 | $5.0M | SEC ↗ |
| 2025-12-02 | Ortega Juan Luis | Sale | 864 | $294 | $253,666 | SEC ↗ |
| 2025-12-02 | Ortega Juan LuisExecutive Vice President* | Sale | 4,357 | $295 | $1.3M | SEC ↗ |
| 2025-11-24 | BOROUGHS TIMOTHY ALANExecutive Vice President* | Sale | 10,580 | $296 | $3.1M | SEC ↗ |
| 2025-11-24 | BOROUGHS TIMOTHY ALANExecutive Vice President* | Sale | 850 | $295 | $250,912 | SEC ↗ |
| 2025-11-14 | Lupica John JVice Chrm, Chubb Group* | Sale | 16,375 | $296 | $4.9M | SEC ↗ |