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Buy GFF
Griffon Stock Insider Power
Based on the 100 latest insides trades, we have calculated the insider power to be negative at -28.57. In total, the insiders bought 1.45M and sold 1.39M GFF 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
|
-28.57 |
| ● Buy | 1.45M shares |
| ● Sell | 1.39M shares |
|
41% Buy Activity
Moderate Positive Correlation
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Historical Insider Trades
| Date | Type | Person | Role | Amount |
|---|---|---|---|---|
|
Nov 30, 2025 Sell |
Kaplan Seth L. Sr Vp, Gen. Counsel And Secy |
8 921 Value: $669.1K |
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|
Nov 30, 2025 Sell |
Kramer Ronald J Chairman Of The Board And CEO |
74 079 Value: $5.56M |
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|
Nov 30, 2025 Sell |
Harris Brian G EVP, Chief Financial Officer |
7 610 Value: $570.8K |
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|
Nov 18, 2025 Buy |
Mehmel Robert F President And COO |
68 432 Value: $4.58M |
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|
Nov 18, 2025 Buy |
Kramer Ronald J Chairman Of The Board And CEO |
136 864 Value: $9.15M |
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|
Mar 11, 2025 Buy |
Sullivan Kevin F Director |
1 594 Value: $110.0K |
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Mar 11, 2025 Buy |
Alpert Henry A Director |
1 594 Value: $110.0K |
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Mar 11, 2025 Buy |
Coben Jerome L Director |
1 594 Value: $110.0K |
||
|
Mar 11, 2025 Buy |
Johnson Lacy M. Director |
1 594 Value: $110.0K |
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|
Mar 11, 2025 Buy |
Hegedus Samanta Director |
1 594 Value: $110.0K |
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|
Mar 11, 2025 Buy |
Sight James W Director |
1 594 Value: $110.0K |
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|
Mar 11, 2025 Buy |
Turnbull Cheryl L Director |
1 594 Value: $110.0K |
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|
Mar 11, 2025 Buy |
Diao H.c. Charles Director |
1 594 Value: $110.0K |
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|
Mar 11, 2025 Buy |
Taylor Michelle L Director |
1 594 Value: $110.0K |
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Mar 11, 2025 Buy |
Grabowsky Louis J. Director |
1 594 Value: $110.0K |
||
|
Mar 11, 2025 Buy |
Grabowsky Louis J. Director |
1 594 Value: $110.0K |
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|
Mar 11, 2025 Buy |
Taylor Michelle L Director |
1 594 Value: $110.0K |
||
|
Mar 11, 2025 Buy |
Diao H.c. Charles Director |
1 594 Value: $110.0K |
||
|
Mar 11, 2025 Buy |
Turnbull Cheryl L Director |
1 594 Value: $110.0K |
||
|
Mar 11, 2025 Buy |
Sight James W Director |
1 594 Value: $110.0K |
||
|
Mar 11, 2025 Buy |
Hegedus Samanta Director |
1 594 Value: $110.0K |
||
|
Mar 11, 2025 Buy |
Johnson Lacy M. Director |
1 594 Value: $110.0K |
||
|
Mar 11, 2025 Buy |
Coben Jerome L Director |
1 594 Value: $110.0K |
||
|
Mar 11, 2025 Buy |
Alpert Henry A Director |
1 594 Value: $110.0K |
||
|
Mar 11, 2025 Buy |
Sullivan Kevin F Director |
1 594 Value: $110.0K |
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
