Quick Takeaways
- Neuberger Berman Group LLC filed SCHEDULE 13G for WHITE MOUNTAINS INSURANCE GROUP LT COMMON (WTM).
- Disclosed ownership: 5.1%.
- Date of event: 31 Dec 2025.
Neuberger Berman Group LLC - 31 Dec 2025 SCHEDULE 13G Report for WHITE MOUNTAINS INSURANCE GROUP LT COMMON (WTM)
- Filing Manager
- Neuberger Berman Group LLC
- Reporting Manager
- Neuberger Berman Group LLC
- Symbol
- WTM
- Shares outstanding
- 2,542,235 shares
- Disclosed Ownership
- 129,654 shares
- Ownership
- 5.1%
- Form type
- SCHEDULE 13G
- Filing time
- 05 Feb 2026, 15:08:16 UTC
- Date of event
- 31 Dec 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"Neuberger Berman Group LLC disclosed 5.1% ownership in WHITE MOUNTAINS INSURANCE GROUP LT COMMON (WTM) on 31 Dec 2025."
What Changed
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 05 Feb 2026, 15:08.
Why This Matters
- 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.
Official SEC Source
Backed by Schedule 13D/13G
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
See Original FilingReporting Managers (2)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Neuberger Berman Group LLC | 5.1% | 129,654 | 0 | 118,463 | Brad Cetron | Brad Cetron / Managing Director | |
| Neuberger Berman Investment Advisers LLC | 4.9% | 125,524 | 0 | 114,540 | Brad Cetron | Brad Cetron / Managing Director |