Schedule 13G
WTM Schedule 13G filing by Vanguard Capital Management
Vanguard Capital Management reported beneficial ownership of 128.0K shares, representing 12% of WHITE MOUNTAINS INSURANCE GROUP LTD in this filing.
FiledApr 30, 2026
Ownership dateMar 31, 2026
Reported shares128.0K
Reported ownership12%
Ownership details
Voting and dispositive power reported in the filing
These figures describe the reporting filer’s disclosed voting and investment authority. They should be read together with the reported share count and percentage.
Sole voting power
18.8K
Shared voting power
128.0K
Sole dispositive power
128.0K
Shared dispositive power
128.0K
Price context
Price dates alongside the ownership filing
Price data provides market context around the disclosure. It does not identify the filer’s actual transaction price.
Close near filing date$2,231.99as of Apr 30, 2026
Latest tracked price$2,111.91as of Aug 5, 2026
Source
Original filing and accession
Use the SEC filing as the primary source when you need the complete disclosure, footnotes, exhibits, or reporting-person details.
- Reporting filer
- Vanguard Capital Management
- CIK
- CIK0002100119
- Accession
- 0002100119-26-001212
- Form
- Schedule 13G
Read the filing in context