WHITE MOUNTAINS INSURANCE GROUP LTD
For the period ended Dec 31, 2025. Filed Feb 27, 2026.
View on SEC.govAbout this filing
A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.
FY2025 · Filed Feb 27, 2026
Extracted filing text, with the paragraph anchors used by the comparison.
See the whole filing, with its images and exhibitsContents
ITEM 16. Form 10-K Summary
None.
SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Company has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
| WHITE MOUNTAINS INSURANCE GROUP, LTD. | |||
| Date: | February 27, 2026 | By: | /s/ MICHAELA J. HILDRETH |
|---|---|---|---|
| Michaela J. Hildreth | |||
| Managing Director and Chief Accounting Officer | |||
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Company and in the capacities and on the dates indicated.
| Signature | Title | Date |
|---|---|---|
| /s/ LIAM P. CAFFREY | Chief Executive Officer (Principal Executive Officer) | February 27, 2026 |
| Liam P. Caffrey | ||
| REID T. CAMPBELL* | Director | February 27, 2026 |
| Reid T. Campbell | ||
| PETER M. CARLSON* | Director | February 27, 2026 |
| Peter M. Carlson | ||
| MARY C. CHOKSI* | Director | February 27, 2026 |
| Mary C. Choksi | ||
| MARGARET DILLON* | Director | February 27, 2026 |
| Margaret Dillon | ||
| PHILIP A. GELSTON* | Director | February 27, 2026 |
| Philip A. Gelston | ||
| WESTON M. HICKS* | Chairman | February 27, 2026 |
| Weston M. Hicks | ||
| /s/ MICHAELA J. HILDRETH | Managing Director and Chief Accounting Officer (Principal Accounting Officer) | February 27, 2026 |
| Michaela J. Hildreth | ||
| /s/ MICHAEL A. PAPAMICHAEL | Managing Director and Chief Financial Officer(Principal Financial Officer) | February 27, 2026 |
| Michael A. Papamichael | ||
| SUZANNE F. SHANK* | Director | February 27, 2026 |
| Suzanne F. Shank | ||
| DAVID A. TANNER* | Director | February 27, 2026 |
| David A. Tanner | ||
| STEVEN M. YI* | Director | February 27, 2026 |
| Steven M. Yi | ||
| * By: | /s/ LIAM P. CAFFREY |
|---|---|
| Liam P. Caffrey, Attorney-in-Fact |
Index to Consolidated Financial Statements and Financial Statement Schedules
| Consolidated financial statements: | ||
|---|---|---|
| Consolidated balance sheets as of December 31, 2025 and 2024 | F - 1 | |
| Consolidated statements of operations for each of the years ended December 31, 2025, 2024 and 2023 | F - 3 | |
| Consolidated statements of comprehensive income for each of the years ended December 31, 2025, 2024 and 2023 | F - 5 | |
| Consolidated statements of shareholders’ equity for each of the years ended December 31, 2025, 2024 and 2023 | F - 6 | |
| Consolidated statements of cash flows for each of the years ended December 31, 2025, 2024 and 2023 | F - 7 | |
| Notes to consolidated financial statements | F - 8 | |
| Other financial information: | ||
| Report of independent registered public accounting firm (PCAOB ID: 238) | F - 81 | |
| Financial statement schedules: | ||
| I. | Summary of investments—other than investments in related parties | FS - 1 |
| II. | Condensed financial information of the Registrant | FS - 2 |
| III. | Supplementary insurance information | FS - 5 |
| IV. | Reinsurance | FS - 6 |
| V. | Valuation of qualifying accounts | FS - 7 |
| VI. | Supplemental information concerning property and casualty insurance operations | FS - 8 |
The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.