White Mountains Insurance Group Ltd.
Veridion Score
Composite trend over time
Why is WTM moving today?
White Mountains Insurance Group Ltd is engaged in the business of making opportunistic and value-oriented acquisitions of businesses and assets in the insurance, financial services, and related sectors, operating these businesses and assets through its subsidiaries and, if and when attractive exit valuations become available, disposing of these businesses and assets. The company conducts its business in five areas: property and casualty insurance and reinsurance, municipal bond reinsurance, capital solutions for asset and wealth management firms, property and casualty insurance distribution, and other operations. The company has four reportable segments: Ark/WM Outrigger, HG Global, Kudu and Distinguished.
Reported fields plus Veridion-computed history. Unsourced tiles are omitted.
Warehouse intelligence for WTM.
WTM insider activity
White Mountains Insurance Group Ltd.
No multi-insider buying cluster in the last 90 days
Net selling: -$23.4M across loaded Form 4 rows.
Loaded official disclosures do not show all three sources aligned on this ticker.
| Filing date | Trade date | Insider | Title | Type | Price | Qty | Owned | Value | Receipt |
|---|---|---|---|---|---|---|---|---|---|
| 2026-01-05 | 2026-01-01 | Hildreth Michaela | Insider | sell | $2,078.03 | 274 | 2,491 | $569K | SEC Form 4 |
| 2026-01-02 | 2026-01-01 | Papamichael Michael A | Insider | sell | $2,078.03 | 131 | 772 | $272K | SEC Form 4 |
| 2026-01-02 | 2026-01-01 | Caffrey Liam P | Insider | sell | $2,078.03 | 425 | 1,655 | $883K | SEC Form 4 |
| 2026-01-02 | 2026-01-01 | SEELIG ROBERT LAWRENCE | Insider | sell | $2,078.03 | 398 | 17,907 | $827K | SEC Form 4 |
| 2025-12-22 | 2025-12-19 | CAMPBELL REID TARLTON | Insider | sell | $2,050 | 5,000 | 10,440 | $10.3M | SEC Form 4 |
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Registered lobbying filings matched to White Mountains Insurance Group Ltd..