13F-HR | SEC Filings Hub

Filing metadata

Accession number: 0001628280-26-073472
Form type: 13F-HR
Filer: WHITE MOUNTAINS INSURANCE GROUP LTD
CIK: CIK 776867
Filed: Nov 12, 2026
Reporting period: Sep 30, 2026
Description: Institutional holdings

Documents

0001628280-26-073472-index.htm

Complete submission

0001628280-26-073472.txt

directory listing

Filed by

WHITE MOUNTAINS INSURANCE GROUP LTD