White Mountains Insurance Group Ltd: Form 10-K for the period ended Dec 31, 2025
Filed with the SEC on Feb 27, 2026 and accepted by EDGAR at Feb 27, 2026, 09:21 ET.
Sections
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Figures reported in this filing
Standardized line items from the XBRL in this filing, for the period ended 2025-12-31. Comparative periods it repeats are left out.
| Line item | Period | Value | XBRL concept |
|---|---|---|---|
| Revenue | 12 months2025-01-01 to 2025-12-31 | $3.73bn | us-gaap:Revenues |
| Cost of revenue | 12 months2025-01-01 to 2025-12-31 | $151.8m | us-gaap:CostOfGoodsAndServicesSold |
| Interest expense | 12 months2025-01-01 to 2025-12-31 | $78.4m | us-gaap:InterestExpense |
| Income tax | 12 months2025-01-01 to 2025-12-31 | $126.9m | us-gaap:IncomeTaxExpenseBenefit |
| Net income | 12 months2025-01-01 to 2025-12-31 | $1.11bn | us-gaap:NetIncomeLoss |
| Diluted EPS | 12 months2025-01-01 to 2025-12-31 | $430.14 | us-gaap:EarningsPerShareDiluted |
| Basic EPS | 12 months2025-01-01 to 2025-12-31 | $430.14 | us-gaap:EarningsPerShareBasic |
| Diluted shares (weighted) | 12 months2025-01-01 to 2025-12-31 | 2,534,300 shares | us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding |
| Operating cash flow | 12 months2025-01-01 to 2025-12-31 | $550.5m | us-gaap:NetCashProvidedByUsedInOperatingActivities |
| Dividends paid | 12 months2025-01-01 to 2025-12-31 | $2.6m | us-gaap:PaymentsOfDividendsCommonStock |
| Share repurchases | 12 months2025-01-01 to 2025-12-31 | $202.6m | us-gaap:PaymentsForRepurchaseOfCommonStock |
| Total assets | At period end2025-12-31 | $12.31bn | us-gaap:Assets |
| Total liabilities | At period end2025-12-31 | $6.05bn | us-gaap:Liabilities |
| Long-term debt | At period end2025-12-31 | $837.0m | us-gaap:LongTermDebt |
| Shareholders' equity | At period end2025-12-31 | $5.43bn | us-gaap:StockholdersEquity |
Source: SEC EDGAR, the filing index for accession 0001628280-26-012603. Last ingested by Listed: Oct 30, 2026, 21:03 ET. Listed shows no prices and gives no investment advice.