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Buy WTM
White Mountains Insurance Group Stock Insider Power
Based on the 100 latest insides trades, we have calculated the insider power to be negative at -78.57. In total, the insiders bought 29.84K and sold 21.65K WTM shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.
Insider Power
|
-78.57 |
| ● Buy | 29.84K shares |
| ● Sell | 21.65K shares |
|
75% Buy Activity
Strong Negative Correlation
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Historical Insider Trades
| Date | Type | Person | Role | Amount |
|---|---|---|---|---|
|
Feb 26, 2025 Buy |
Caffrey Liam P EVP& Chief Financial Officer |
1 025 Value: $1.88M |
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|
Feb 26, 2025 Buy |
Harrison Giles E EVP & Chief Strategy Officer |
900 Value: $1.65M |
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Feb 26, 2025 Buy |
Seelig Robert Lawrence EVP & General Counsel |
825 Value: $1.51M |
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Feb 26, 2025 Buy |
Hildreth Michaela Md & Chief Accounting Officer |
625 Value: $1.15M |
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Feb 26, 2025 Buy |
Hildreth Michaela Md & Chief Accounting Officer |
625 Value: $1.15M |
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|
Feb 26, 2025 Buy |
Seelig Robert Lawrence EVP & General Counsel |
825 Value: $1.51M |
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|
Feb 26, 2025 Buy |
Harrison Giles E EVP & Chief Strategy Officer |
900 Value: $1.65M |
||
|
Feb 26, 2025 Buy |
Caffrey Liam P EVP& Chief Financial Officer |
1 025 Value: $1.88M |
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|
Feb 26, 2025 Buy |
Rountree George Manning Chief Executive Officer |
1 625 Value: $2.98M |
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Jan 01, 2025 Sell |
Rountree George Manning Chief Executive Officer |
1 067 Value: $2.08M |
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Jan 01, 2025 Sell |
Caffrey Liam P President & CFO |
420 Value: $816.9K |
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Jan 01, 2025 Sell |
Seelig Robert Lawrence EVP & General Counsel |
496 Value: $964.7K |
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Jan 01, 2025 Sell |
Hildreth Michaela Md & Chief Accounting Officer |
323 Value: $628.3K |
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Jan 01, 2025 Sell |
Hildreth Michaela Md & Chief Accounting Officer |
323 Value: $628.3K |
||
|
Jan 01, 2025 Sell |
Seelig Robert Lawrence EVP & General Counsel |
496 Value: $964.7K |
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Jan 01, 2025 Sell |
Caffrey Liam P President & CFO |
420 Value: $816.9K |
||
|
Jan 01, 2025 Sell |
Rountree George Manning Chief Executive Officer |
1 067 Value: $2.08M |
||
|
Nov 29, 2024 Sell |
Hildreth Michaela Md & Chief Accounting Officer |
75 Value: $0 |
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Nov 29, 2024 Sell |
Hildreth Michaela Md & Chief Accounting Officer |
75 Value: $0 |
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|
Jun 10, 2024 Buy |
Harrison Giles E EVP & Chief Strategy Officer |
1 000 Value: $1.73M |
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Jun 10, 2024 Buy |
Harrison Giles E EVP & Chief Strategy Officer |
0 Value: $0 |
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Jun 10, 2024 Buy |
Harrison Giles E EVP & Chief Strategy Officer |
0 Value: $0 |
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Jun 10, 2024 Buy |
Harrison Giles E EVP & Chief Strategy Officer |
1 000 Value: $1.73M |
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|
May 23, 2024 Buy |
Yi Steven Director |
165 Value: $0 |
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May 23, 2024 Buy |
Tanner David Allen Director |
165 Value: $0 |
About Insider Power
Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.
It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.
While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.
* October 6th, 2025 - Tested on 5562 stocks
