Key facts
- MORGAN STANLEY filed SCHEDULE 13G/A for WHITE MOUNTAINS INSURANCE GROUP LTD Common Stock (WTM).
- Disclosed ownership: 3%.
- Date of event: 31 Dec 2025.
MORGAN STANLEY - 31 Dec 2025 SCHEDULE 13G/A Report for WHITE MOUNTAINS INSURANCE GROUP LTD Common Stock (WTM)
- Symbol
- WTM
- Shares outstanding
- 2,560,567 shares
- Disclosed shares
- 76,817 shares
- Ownership percentage
- 3%
- Form type
- SCHEDULE 13G/A
- Filing time
- 12 Feb 2026, 10:38:19 UTC
- Event date
- 31 Dec 2025
- Previous filing
- 07 Nov 2025
- SEC filing
- View on sec.gov
Subject security
Ownership signal
SEC evidence
Key filing fact
MORGAN STANLEY disclosed 3% ownership in WHITE MOUNTAINS INSURANCE GROUP LTD Common Stock (WTM) on 31 Dec 2025.
Change
- Previous schedule filing date: 07 Nov 2025.
- Current filing was accepted on 12 Feb 2026, 10:38.
Research use
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Reporting managers (1)
Names, ownership, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Morgan Stanley | 3% | 76,817 | 0 | 53,289 | Chris O'Hara | Authorized Signatory, Morgan Stanley |
CIK / CUSIP context first