| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
White Mountains Insurance Group Ltd (WTM) has 15 insiders with recent SEC Form 4 filings, including 6 buys and 8 sells. WTM is classified in the Insurance industry within the Financials sector.
| Role | Insider | Shares | Value | 30d |
|---|---|---|---|---|
| VP | 17.9K | $37.93M | - | |
| CEO | 13.8K | $29.33M | - | |
| Dir | 10.4K | $22.17M | - | |
| CEO | 3.6K | $7.75M | - | |
| Dir | 2.7K | $5.83M | - |
Buys and sells only
| Date | Insider | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Dec 19, 2025 | Campbell Reid Tarlton | Director | Sell | 5,000 | $0.00 | - | -32.4% | +6.8% | - | |
| Dec 19, 2025 | Rountree George Manning | Chief Executive Officer | Sell | 5,000 | $2,050.00 | $10,250,000.00 | -26.6% | +6.8% | - | |
| Dec 16, 2025 | Gelston Philip A | Director | Sell | 165 | $2,048.51 | $338,004.15 | -9.5% | +7.5% | - | |
| May 7, 2024 | White Mountains Insurance Group Ltd67 | 10% Owner | Sell | 5,000,200 | $19.00 | $95,003,800.00 | -21.9% | -4.8% | -4.0% | |
| Nov 17, 2023 | Hicks Weston M | Director | Buy | 1,000 | $1,480.56 | $1,480,557.33 | +12.1% | +19.2% | +29.8% | |
| Jun 30, 2023 | White Mountains Insurance Group Ltd67 | Director, 10% Owner | Buy | 5,916,816 | $10.00 | $59,168,160.00 | +34.9% | +9.5% | +30.9% | |
| Dec 22, 2022 | Hildreth Michaela | MD &Chief Accounting Officer | Sell | 100 | $1,371.84 | $137,184.00 | -6.4% | -3.1% | +7.2% | |
| Sep 20, 2022 | Carlson Peter M | Director | Sell | 200 | $1,400.00 | $280,000.00 | -20.2% | -1.6% | +8.7% | |
| Sep 20, 2022 | Davis Morgan W | Director | Sell | 945 | $1,400.00 | $1,323,000.00 | -12.0% | -1.6% | +8.7% | |
| May 31, 2022 | Hildreth Michaela | MD &Chief Accounting Officer | Sell | 100 | $1,270.94 | $127,094.00 | -6.0% | +10.1% | +8.8% |