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Buy MTG
MGIC Investment Stock Insider Power
Based on the 100 latest insides trades, we have calculated the insider power to be negative at -50.99. In total, the insiders bought 2.08B and sold 2.35M MTG 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
|
-50.99 |
| ● Buy | 2.08B shares |
| ● Sell | 2.35M shares |
|
73% Buy Activity
Weak Negative Correlation
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Historical Insider Trades
| Date | Type | Person | Role | Amount |
|---|---|---|---|---|
|
Feb 04, 2026 Buy |
Colson Nathaniel H Officer EVP, CFO & Cro |
24 070 Value: $640.3K |
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|
Feb 04, 2026 Buy |
Miosi Salvatore A President & COO |
33 096 Value: $880.4K |
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|
Feb 04, 2026 Buy |
Sperber Julie K. Vp-chief Accounting Officer |
2 821 Value: $75.0K |
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|
Feb 04, 2026 Buy |
Culver Curt S Director |
5 077 Value: $135.1K |
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Feb 04, 2026 Buy |
Hartzell Jay C. Director |
5 077 Value: $135.1K |
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|
Feb 04, 2026 Buy |
Sculley Sheryl L. Director |
5 077 Value: $135.1K |
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Feb 04, 2026 Buy |
O'leary-gill Daniela Director |
5 077 Value: $135.1K |
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|
Feb 04, 2026 Buy |
Klein Martin P Director |
5 077 Value: $135.1K |
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|
Feb 04, 2026 Buy |
Thompson Michael Leal Director |
5 077 Value: $135.1K |
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Feb 04, 2026 Buy |
Chaplin C Edward Director |
5 077 Value: $135.1K |
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|
Feb 04, 2026 Buy |
Zandi Mark Director |
5 077 Value: $135.1K |
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|
Feb 04, 2026 Buy |
Kozlak Jodee A Director |
5 077 Value: $135.1K |
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|
Feb 02, 2026 Sell |
Miosi Salvatore A President & COO |
30 000 Value: $818.0K |
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Jan 21, 2026 Sell |
Miosi Salvatore A President & COO |
309 839 Value: $0 |
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Jan 21, 2026 Buy |
Miosi Salvatore A President & COO |
309 839 Value: $8.27M |
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Jan 13, 2026 Sell |
Mattke Timothy J. Chief Executive Officer |
542 Value: $15.1K |
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Jan 13, 2026 Sell |
Mattke Timothy J. Chief Executive Officer |
9 203 Value: $250.1K |
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Jan 13, 2026 Sell |
Mattke Timothy J. Chief Executive Officer |
11 240 Value: $291.1K |
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Jan 13, 2026 Sell |
Mattke Timothy J. Chief Executive Officer |
3 020 Value: $83.9K |
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Jan 13, 2026 Sell |
Mattke Timothy J. Chief Executive Officer |
52 145 Value: $1.42M |
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Jan 13, 2026 Sell |
Mattke Timothy J. Chief Executive Officer |
63 053 Value: $1.63M |
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|
Jan 02, 2026 Sell |
Miosi Salvatore A President & COO |
30 000 Value: $874.0K |
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Dec 01, 2025 Sell |
Miosi Salvatore A President & COO |
30 000 Value: $852.0K |
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Feb 14, 2025 Sell |
Miosi Salvatore A President & COO |
75 005 Value: $0 |
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Feb 14, 2025 Buy |
Miosi Salvatore A President & COO |
75 005 Value: $1.85M |
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
