WHITE MOUNTAINS INSURANCE GROUP LTD
For the period ended Mar 31, 2026. Filed May 6, 2026.
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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.
Mar 31, 2026 · Filed May 6, 2026
WTM$2,256.20+0.7%Stored close · as of Nov 9, 2026
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Item 6. Exhibits
| (a) | Exhibit number | Name |
|---|---|---|
| 31.1 | — | Principal Executive Officer Certification Pursuant to Rule 13a-14 (a) of the Securities Exchange Act of 1934, as Amended. (*) |
| 31.2 | — | Principal Financial Officer Certification Pursuant to Rule 13a-14 (a) of the Securities Exchange Act of 1934, as Amended. (*) |
| 32.1 | — | Principal Executive Officer Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. (*) |
| 32.2 | — | Principal Financial Officer Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. (*) |
| 101 | — | XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document. |
| (*) | Included herein |
|---|
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