WHITE MOUNTAINS INSURANCE GP (WTM) Stock Ownership and Short Interest
USA - New York Stock Exchange - NYSE:WTM - BMG9618E1075 - Common Stock
2024.25 USD
-4.81 (-0.24%)
2024.25 USD
0 (0%)
| Shares Outstanding | 2.52M |
| Float | 2.44M |
| Float Short Interest Percentage | 4.38% |
| Owners (insider) | 1.49% |
| Owners (institutional) | 93.9% |
| Owners (insider) change | -0.03% |
| Owners (institutional) change | -2.24% |
Insider Transactions
Top Institutional Holders
Insider Owners
| Date | Name | Type | Shares | Price | Amount |
|---|---|---|---|---|---|
| Nov 25, 2025 | CAMPBELL REID TARLTON | Other Disposition | 50 | 0.00 | $ 0.00 |
| Nov 10, 2025 | Tanner David Allen | Other Disposition | 4 | 0.00 | $ 0.00 |
| May 22, 2025 | Tanner David Allen | Grant | 150 | 0.00 | $ 0.00 |
| May 22, 2025 | Hicks Weston M | Grant | 210 | 0.00 | $ 0.00 |
| May 22, 2025 | Gelston Philip A | Grant | 150 | 0.00 | $ 0.00 |
| May 22, 2025 | Yi Steven | Grant | 150 | 0.00 | $ 0.00 |
| May 22, 2025 | Dillon Margaret | Grant | 150 | 0.00 | $ 0.00 |
| May 22, 2025 | CHOKSI MARY C | Grant | 150 | 0.00 | $ 0.00 |
| May 22, 2025 | Carlson Peter M | Grant | 150 | 0.00 | $ 0.00 |
| May 22, 2025 | CAMPBELL REID TARLTON | Grant | 150 | 0.00 | $ 0.00 |
| May 22, 2025 | SHANK SUZANNE F. | Grant | 150 | 0.00 | $ 0.00 |
| Feb 26, 2025 | Rountree George Manning | Grant | 1625 | 0.00 | $ 0.00 |
| Feb 26, 2025 | Caffrey Liam P | Grant | 1025 | 0.00 | $ 0.00 |
| Feb 26, 2025 | Harrison Giles E | Grant | 900 | 0.00 | $ 0.00 |
| Feb 26, 2025 | SEELIG ROBERT LAWRENCE | Grant | 825 | 0.00 | $ 0.00 |
| Feb 26, 2025 | Hildreth Michaela | Grant | 625 | 0.00 | $ 0.00 |
| Jan 1, 2025 | Rountree George Manning | Option Excercise | 1067 | 1,945.06 | $ 2,075,379.02 |
| Jan 1, 2025 | Caffrey Liam P | Option Excercise | 420 | 1,945.06 | $ 816,925.20 |
| Jan 1, 2025 | SEELIG ROBERT LAWRENCE | Option Excercise | 496 | 1,945.06 | $ 964,749.76 |
| Jan 1, 2025 | Hildreth Michaela | Option Excercise | 323 | 1,945.06 | $ 628,254.38 |