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White Mountains Insurance Group Ltd (NYSE:WTM)
Bermuda · Delayed Price · Currency is USD
Financial Services · Insurance - Property & Casualty
2220.38-4.86 (-0.22%)
Market cap
$5.30B
Website
Insider Score
––Not scored
WTM Insider Score
Insiders here have filed 2 Form 4s in the last 90 days, but all of them are share awards, grants or other non-market transactions. Those are compensation, not a decision to buy, so they are not scored.
Congress Trading
Recent trades of WTM by members of U.S. Congress
| Politician | Type | Traded |
|---|---|---|
| Michael T. McCaulHouse / R | Sale$1.00K – $15.00K | Jun 18, 2026 |
| Michael T. McCaulHouse / R | Purchase$15.00K – $50.00K | Sep 22, 2025 |
| French HillHouse / R | Purchase$50.00K – $100.00K | Jun 23, 2025 |
| Michael T. McCaulHouse / R | Purchase$15.00K – $50.00K | Jan 23, 2025 |
| Michael T. McCaulHouse / R | Sale$1.00K – $15.00K | Aug 26, 2024 |
| Michael T. McCaulHouse / R | Purchase$15.00K – $50.00K | Jun 25, 2024 |
| Michael T. McCaulHouse / R | Sale$1.00K – $15.00K | Jan 17, 2024 |
| Michael T. McCaulHouse / R | Purchase$1.00K – $15.00K | Nov 1, 2023 |
Corporate Lobbying
Government lobbying spending instances
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Source: U.S. Senate LDA
Corporate Lobbying
WTM Estimated quarterly lobbying spending
Source: U.S. Senate LDA
U.S. Patents
New WTM patent grants
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Source: USPTO Open Data Portal
Government Contracts
Estimated quarterly amount awarded to WTM from public contracts
Source: USAspending.gov
Recently reported changes in WTM holdings by institutional investors
Scanning latest 13F filings…
Latest 0 13F filings · Source: SEC EDGAR
View all institutional owners →Congressional Trades
U.S. House and Senate disclosures referencing WTM, reported under the STOCK Act.
| Politician | Chamber | Action | Amount | Date |
|---|---|---|---|---|
| House | Sell | $1.00K – $15.00K | Jun 18, 2026 | |
| House | Buy | $15.00K – $50.00K | Sep 22, 2025 | |
| House | Buy | $50.00K – $100.00K | Jun 23, 2025 | |
| House | Buy | $15.00K – $50.00K | Jan 23, 2025 | |
| House | Sell | $1.00K – $15.00K | Aug 26, 2024 | |
| House | Buy | $15.00K – $50.00K | Jun 25, 2024 | |
| House | Sell | $1.00K – $15.00K | Jan 17, 2024 | |
| House | Buy | $1.00K – $15.00K | Nov 1, 2023 | |
| House | Buy | $15.00K – $50.00K | Nov 1, 2023 | |
| House | Sell | $1.00K – $15.00K | Dec 14, 2022 | |
| House | Buy | $1.00K – $15.00K | Feb 15, 2022 |
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.