Sign In
Buy CNM
Core & Main Stock Insider Power
Based on the 100 latest insides trades, we have calculated the insider power to be negative at -32.47. In total, the insiders bought 1.18M and sold 764.92K CNM 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
|
-32.47 |
| ● Buy | 1.18M shares |
| ● Sell | 764.92K shares |
|
57% Buy Activity
Weak Negative Correlation
|
|
Historical Insider Trades
| Date | Type | Person | Role | Amount |
|---|---|---|---|---|
|
Aug 18, 2025 Buy |
Witkowski Mark R Chief Executive Officer |
100 000 Value: $6.48M |
||
|
Aug 18, 2025 Sell |
Witkowski Mark R Chief Executive Officer |
100 000 Value: $6.41M |
||
|
Aug 18, 2025 Sell |
Witkowski Mark R Chief Executive Officer |
100 000 Value: $0 |
||
|
Aug 18, 2025 Sell |
Witkowski Mark R Chief Executive Officer |
100 000 Value: $0 |
||
|
Aug 18, 2025 Sell |
Witkowski Mark R Chief Executive Officer |
100 000 Value: $6.41M |
||
|
Aug 18, 2025 Buy |
Witkowski Mark R Chief Executive Officer |
100 000 Value: $6.48M |
||
|
Aug 18, 2025 Buy |
Witkowski Mark R Chief Executive Officer |
100 000 Value: $6.48M |
||
|
Aug 18, 2025 Sell |
Witkowski Mark R Chief Executive Officer |
100 000 Value: $0 |
||
|
Jul 22, 2025 Sell |
Huebert Michael G. President |
1 337 Value: $86.9K |
||
|
Jul 22, 2025 Sell |
Bradbury Robyn L Chief Financial Officer |
5 000 Value: $0 |
||
|
Jul 22, 2025 Buy |
Bradbury Robyn L Chief Financial Officer |
5 000 Value: $325.2K |
||
|
Jul 22, 2025 Sell |
Bradbury Robyn L Chief Financial Officer |
5 000 Value: $322.6K |
||
|
Jul 22, 2025 Buy |
Bradbury Robyn L Chief Financial Officer |
5 000 Value: $325.2K |
||
|
Jul 22, 2025 Sell |
Bradbury Robyn L Chief Financial Officer |
5 000 Value: $0 |
||
|
Jul 22, 2025 Sell |
Bradbury Robyn L Chief Financial Officer |
5 000 Value: $0 |
||
|
Jul 22, 2025 Buy |
Bradbury Robyn L Chief Financial Officer |
5 000 Value: $325.2K |
||
|
Jul 22, 2025 Sell |
Bradbury Robyn L Chief Financial Officer |
5 000 Value: $322.6K |
||
|
Jul 22, 2025 Buy |
Bradbury Robyn L Chief Financial Officer |
5 000 Value: $325.2K |
||
|
Jul 22, 2025 Sell |
Bradbury Robyn L Chief Financial Officer |
5 000 Value: $0 |
||
|
Jul 22, 2025 Sell |
Huebert Michael G. President |
1 337 Value: $86.9K |
||
|
Jul 18, 2025 Buy |
Kimbrough Orvin T Director |
23 957 Value: $1.49M |
||
|
Jul 18, 2025 Sell |
Castellano James G Director |
43 994 Value: $2.73M |
||
|
Jul 18, 2025 Sell |
Castellano James G Director |
34 674 Value: $0 |
||
|
Jul 18, 2025 Buy |
Castellano James G Director |
34 674 Value: $2.15M |
||
|
Jul 18, 2025 Buy |
Castellano James G Director |
34 674 Value: $2.15M |
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
