White Mountains Insurance Gp shares owned by Columbia Asset Management
Quarter-by-quarter ownership of White Mountains Insurance Gp (WTM) shares owned by Columbia Asset Management
from 13F filings
Historical chart of Columbia Asset Management investment in White Mountains Insurance Gp
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Quarterly reported holdings in White Mountains Insurance Gp by Columbia Asset Management
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $209k | 125 | 1671.52 |
| 2025-06-30 | $225k | 125 | 1795.72 |
| 2025-03-31 | $241k | 125 | 1925.81 |
| 2024-12-31 | $243k | 125 | 1945.06 |
| 2019-12-31 | $2.1k | 184 | 11.16 |
| 2019-03-31 | $170k | 184 | 923.91 |
| 2018-12-31 | $158k | 184 | 858.70 |
| 2018-09-30 | $172k | 184 | 934.78 |
| 2016-12-31 | $154k | 184 | 836.96 |