David Allen Tanner - 10 Nov 2025 Form 4 Insider Report for WHITE MOUNTAINS INSURANCE GROUP LTD (WTM)

Role
Director
Signature
Wesley C. Bell, by Power of Attorney
Issuer symbol
WTM
Transactions as of
10 Nov 2025
Net transactions value
$0
Form type
4
Filing time
10 Nov 2025, 15:30:29 UTC
Previous filing
23 May 2025
Next filing
05 Mar 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Tanner David Allen Director C/O WHITE MOUNTAINS INSURANCE GROUP, LTD, 23 SOUTH MAIN STREET, SUITE 3B, HANOVER Wesley C. Bell, by Power of Attorney 10 Nov 2025 0001318960

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction WTM Common Shares Gift $0 -4 -0.19% $0.000000 2,104 10 Nov 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.