Figures computed from official regulatory filings — methodology.
| Insider | Type | Value · USD | |
|---|---|---|---|
| BERKSHIRE HATHAWAY INC | Other | $641.6M | SEC |
| Fry Michael W. | Other | $661K | SEC |
| Hunt Mark E | Other | $458.5K | SEC |
| Hunt Mark E | Other | $16K | SEC |
| BURGESS PETER S | Other | $224K | SEC |
| Grady Lois W | Other | $224K | SEC |
| Goldstein David S | Other | $278.5K | SEC |
| Guilbert Daniel R | OtherD | — | SEC |
| Hunt Mark E | Other | $32K | SEC |
| Hunt Mark E | Other | $16K | SEC |
| MARRA THOMAS M | Other | $10.9M | SEC |
| Katzmar Holmes Christine Ann | Other | $170K | SEC |
| Meister Margaret A. | Other | $3.2M | SEC |
| WHITE MOUNTAINS INSURANCE GROUP LTD | Other | $658M | SEC |
| Brooks Tommie D. | Other | $170K | SEC |
| Hunt Mark E | Other | $670.4K | SEC |
| MARRA THOMAS M | OtherD | — | SEC |
| Goldstein David S | Other | $188.8K | SEC |
| Guilbert Daniel R | Other | $661K | SEC |
| Meister Margaret A. | OtherD | — | SEC |
| Guilbert Daniel R | Other | $1.5M | SEC |
| LUSARDI ROBERT R | Other | $327.2K | SEC |
| Fry Michael W. | OtherD | — | SEC |
| SMITH LOWNDES ANDREW | Other | $320K | SEC |
| Katzmar Holmes Christine Ann | Other | $505.4K | SEC |