Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001318960-25-000008
Filing Date
2025-11-10
Accepted
2025-11-10 15:30:29
Documents
1
Period of Report
2025-11-10

Document Format Files

Seq Description Document Type Size
1 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES form4.html 4  
1 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES form4.xml 4 2885
  Complete submission text file 0001318960-25-000008.txt   4719
Mailing Address 23 SOUTH MAIN STREET SUITE 3B HANOVER NH 03755
Business Address 23 SOUTH MAIN STREET SUITE 3B HANOVER NH 03755 603 640 2200
WHITE MOUNTAINS INSURANCE GROUP LTD (Issuer) CIK: 0000776867 (see all company filings)

EIN.: 942708455 | State of Incorp.: D0 | Fiscal Year End: 1231
SIC: 6331 Fire, Marine & Casualty Insurance
(CF Office: 02 Finance)

Mailing Address C/O ARLON GROUP LLC 277 PARK AVE NEW YORK NY 10172
Business Address
Tanner David Allen (Reporting) CIK: 0001318960 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-08993 | Film No.: 251465878