CNM
Core & Main, Inc.$49.82-0.51 (-1.01%)Prev Close$50.33·MCap$9.35B·P/E20.28·Vol1.15M·Yield—
▲
Buys (12M)
0
$0.00
▼
Sells (12M)
11
$32.54M
◆
Net Activity
Net Seller
$32.54M
●
Active Insiders
9
last 12 mo
Over the past 12 months, insider activity at Core & Main, Inc. (CNM) has been exclusively selling, with 0 insider purchases totaling $0.00 and 11 insider sales totaling $32.54M. The most recent insider transaction was by Witkowski Mark R (Chief Executive Officer), who sold $6.41M worth of shares on Aug 18, 2025. Core & Main, Inc. operates in the Industrials sector, within the Industrial - Distribution industry, with a market cap of $9.35B.
CNM Insider Trading Activity
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Aug 18, 2025 | Witkowski Mark R | Chief Executive Officer | Sell | 100,000 | $64.08 | $6.41M | 0 |
| Jul 22, 2025 | Bradbury Robyn L | Chief Financial Officer | Sell | 5,000 | $64.51 | $322.6K | 0 |
| Jul 22, 2025 | HUEBERT MICHAEL G. | President | Sell | 1,337 | $65.03 | $86.9K | 0 |
| Jul 18, 2025 | Castellano James G | Director | Sell | 43,994 | $61.98 | $2.73M | 0 |
| Jul 18, 2025 | Kimbrough Orvin T | Director | Sell | 23,962 | $61.77 | $1.48M | 0 |
| Jul 17, 2025 | Witkowski Mark R | Chief Executive Officer | Sell | 100,000 | $61.26 | $6.13M | 0 |
| Jul 3, 2025 | LeClair Stephen O | Executive Chair | Sell | 125,000 | $62.14 | $7.77M | 0 |
| Jul 1, 2025 | Bradbury Robyn L | Chief Financial Officer | Sell | 25,000 | $60.49 | $1.51M | 0 |
| Jun 6, 2025 | Whittenburg Mark G | General Counsel and Secretary | Sell | 50,000 | $60.03 | $3.00M | 0 |
| Jun 3, 2025 | Schneider Laura K | Chief Human Resources Officer | Sell | 45,695 | $56.25 | $2.57M | 0 |
| May 28, 2025 | Schaller John R | Executive Vice President | Sell | 9,794 | $55.00 | $538.7K | 0 |
| Apr 28, 2025 | Stephens John Weldon | Chief Accounting Officer | Sell | 41,964 | $53.03 | $2.23M | 0 |
| Apr 2, 2025 | Stephens John Weldon | Chief Accounting Officer | Sell | 41,963 | $50.48 | $2.12M | 0 |
| Mar 11, 2025 | Cowles Bradford A | President | Sell | 724 | $46.55 | $33.7K | 0 |
| Mar 11, 2025 | Giles Jeffrey D | EVP, Corporate Department | Sell | 436 | $46.55 | $20.3K | 0 |
| Mar 11, 2025 | LeClair Stephen O | Chief Executive Officer | Sell | 4,889 | $46.55 | $227.6K | 0 |
| Mar 11, 2025 | Schaller John R | Executive Vice President | Sell | 20,270 | $45.07 | $913.7K | 0 |
| Mar 11, 2025 | Schneider Laura K | Chief Human Resources Officer | Sell | 434 | $46.55 | $20.2K | 0 |
| Mar 11, 2025 | Stephens John Weldon | Chief Accounting Officer | Sell | 200 | $46.55 | $9.3K | 0 |
| Mar 11, 2025 | Whittenburg Mark G | General Counsel and Secretary | Sell | 510 | $46.55 | $23.7K | 0 |
| Mar 11, 2025 | Witkowski Mark R | Chief Financial Officer | Sell | 925 | $46.55 | $43.1K | 0 |
| Mar 7, 2025 | Cowles Bradford A | President | Sell | 1,260 | $47.10 | $59.3K | 0 |
| Mar 7, 2025 | Giles Jeffrey D | EVP, Corporate Department | Sell | 702 | $47.09 | $33.1K | 0 |
| Mar 7, 2025 | HUEBERT MICHAEL G. | President | Sell | 359 | $47.87 | $17.2K | 0 |
| Mar 7, 2025 | LeClair Stephen O | Chief Executive Officer | Sell | 5,512 | $47.08 | $259.5K | 0 |
| Mar 7, 2025 | Schaller John R | Executive Vice President | Sell | 23,314 | $46.84 | $1.09M | 0 |
| Mar 7, 2025 | Schneider Laura K | Chief Human Resources Officer | Sell | 633 | $47.07 | $29.8K | 0 |
| Mar 7, 2025 | Stephens John Weldon | Chief Accounting Officer | Sell | 292 | $47.07 | $13.7K | 0 |
| Mar 7, 2025 | Whittenburg Mark G | General Counsel and Secretary | Sell | 877 | $47.06 | $41.3K | 0 |
| Mar 7, 2025 | Witkowski Mark R | Chief Financial Officer | Sell | 1,532 | $47.10 | $72.2K | 0 |
| Feb 10, 2025 | Cowles Bradford A | President | Sell | 25,000 | $54.48 | $1.36M | 0 |
| Jan 15, 2025 | Whittenburg Mark G | General Counsel and Secretary | Sell | 50,000 | $55.14 | $2.76M | 0 |
| Dec 3, 2024 | Cowles Bradford A | President | Sell | 50,000 | $55.07 | $2.75M | 0 |
| Dec 3, 2024 | Giles Jeffrey D | EVP, Corporate Department | Sell | 25,000 | $54.71 | $1.37M | 0 |
| Dec 3, 2024 | LeClair Stephen O | Chief Executive Officer | Sell | 200,000 | $54.88 | $10.98M | 0 |
| Dec 3, 2024 | NEWMAN MARGARET | Director | Sell | 15,000 | $55.25 | $828.7K | 0 |
| Jul 16, 2024 | Gipson Dennis G | Director | Sell | 25,000 | $53.08 | $1.33M | 0 |
| Jul 15, 2024 | Castellano James G | Director | Sell | 12,500 | $52.22 | $652.8K | 0 |
| Jul 10, 2024 | Castellano James G | Director | Sell | 12,500 | $50.69 | $633.6K | 0 |
| Feb 12, 2024 | Giles Jeffrey D | VP, Corporate Department | Sell | 40,000 | $44.14 | $1.77M | 0 |
| Feb 12, 2024 | Kimbrough Orvin T | Director | Sell | 5,000 | $44.17 | $220.8K | 0 |
| Feb 12, 2024 | LeClair Stephen O | Chief Executive Officer | Sell | 150,000 | $44.14 | $6.62M | 0 |
| Feb 12, 2024 | Schneider Laura K | Chief Human Resources Officer | Sell | 100,000 | $44.14 | $4.41M | 0 |
| Jan 16, 2024 | Schaller John R | President | Sell | 50,000 | $40.99 | $2.05M | 0 |
| Jan 12, 2024 | Kimbrough Orvin T | Director | Sell | 5,000 | $41.06 | $205.3K | 0 |
| Jan 11, 2024 | LeClair Stephen O | Chief Executive Officer | Sell | 150,000 | $40.66 | $6.10M | 0 |
| Jan 11, 2024 | Schneider Laura K | Chief Human Resources Officer | Sell | 100,000 | $40.63 | $4.06M | 0 |
| Jul 13, 2023 | Schaller John R | President | Sell | 25,000 | $31.96 | $798.9K | 0 |
| Jun 27, 2023 | Schneider Laura K | Chief Human Resources Officer | Sell | 49,904 | $30.03 | $1.50M | 0 |
| Jun 6, 2023 | Cowles Bradford A | President | Sell | 24,889 | $28.10 | $699.3K | 0 |
Showing 1–50 of 83
1 / 2
CNM Insider Buying Activity
The following table shows recent insider purchases of Core & Main, Inc. (CNM) stock reported via SEC Form 4 filings.
No insider buying activity found for CNM in the last 12 months.
CNM Insider Selling Activity
The following table shows recent insider sales of Core & Main, Inc. (CNM) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Aug 18, 2025 | Witkowski Mark R | Chief Executive Officer | Sell | 100,000 | $64.08 | $6.41M | 0 |
| Jul 22, 2025 | Bradbury Robyn L | Chief Financial Officer | Sell | 5,000 | $64.51 | $322.6K | 0 |
| Jul 22, 2025 | HUEBERT MICHAEL G. | President | Sell | 1,337 | $65.03 | $86.9K | 0 |
| Jul 18, 2025 | Castellano James G | Director | Sell | 43,994 | $61.98 | $2.73M | 0 |
| Jul 18, 2025 | Kimbrough Orvin T | Director | Sell | 23,962 | $61.77 | $1.48M | 0 |
| Jul 17, 2025 | Witkowski Mark R | Chief Executive Officer | Sell | 100,000 | $61.26 | $6.13M | 0 |
| Jul 3, 2025 | LeClair Stephen O | Executive Chair | Sell | 125,000 | $62.14 | $7.77M | 0 |
| Jul 1, 2025 | Bradbury Robyn L | Chief Financial Officer | Sell | 25,000 | $60.49 | $1.51M | 0 |
| Jun 6, 2025 | Whittenburg Mark G | General Counsel and Secretary | Sell | 50,000 | $60.03 | $3.00M | 0 |
| Jun 3, 2025 | Schneider Laura K | Chief Human Resources Officer | Sell | 45,695 | $56.25 | $2.57M | 0 |
| May 28, 2025 | Schaller John R | Executive Vice President | Sell | 9,794 | $55.00 | $538.7K | 0 |
| Apr 28, 2025 | Stephens John Weldon | Chief Accounting Officer | Sell | 41,964 | $53.03 | $2.23M | 0 |
| Apr 2, 2025 | Stephens John Weldon | Chief Accounting Officer | Sell | 41,963 | $50.48 | $2.12M | 0 |
| Mar 11, 2025 | Cowles Bradford A | President | Sell | 724 | $46.55 | $33.7K | 0 |
| Mar 11, 2025 | Giles Jeffrey D | EVP, Corporate Department | Sell | 436 | $46.55 | $20.3K | 0 |
| Mar 11, 2025 | LeClair Stephen O | Chief Executive Officer | Sell | 4,889 | $46.55 | $227.6K | 0 |
| Mar 11, 2025 | Schaller John R | Executive Vice President | Sell | 20,270 | $45.07 | $913.7K | 0 |
| Mar 11, 2025 | Schneider Laura K | Chief Human Resources Officer | Sell | 434 | $46.55 | $20.2K | 0 |
| Mar 11, 2025 | Stephens John Weldon | Chief Accounting Officer | Sell | 200 | $46.55 | $9.3K | 0 |
| Mar 11, 2025 | Whittenburg Mark G | General Counsel and Secretary | Sell | 510 | $46.55 | $23.7K | 0 |
| Mar 11, 2025 | Witkowski Mark R | Chief Financial Officer | Sell | 925 | $46.55 | $43.1K | 0 |
| Mar 7, 2025 | Cowles Bradford A | President | Sell | 1,260 | $47.10 | $59.3K | 0 |
| Mar 7, 2025 | Giles Jeffrey D | EVP, Corporate Department | Sell | 702 | $47.09 | $33.1K | 0 |
| Mar 7, 2025 | HUEBERT MICHAEL G. | President | Sell | 359 | $47.87 | $17.2K | 0 |
| Mar 7, 2025 | LeClair Stephen O | Chief Executive Officer | Sell | 5,512 | $47.08 | $259.5K | 0 |
| Mar 7, 2025 | Schaller John R | Executive Vice President | Sell | 23,314 | $46.84 | $1.09M | 0 |
| Mar 7, 2025 | Schneider Laura K | Chief Human Resources Officer | Sell | 633 | $47.07 | $29.8K | 0 |
| Mar 7, 2025 | Stephens John Weldon | Chief Accounting Officer | Sell | 292 | $47.07 | $13.7K | 0 |
| Mar 7, 2025 | Whittenburg Mark G | General Counsel and Secretary | Sell | 877 | $47.06 | $41.3K | 0 |
| Mar 7, 2025 | Witkowski Mark R | Chief Financial Officer | Sell | 1,532 | $47.10 | $72.2K | 0 |
| Feb 10, 2025 | Cowles Bradford A | President | Sell | 25,000 | $54.48 | $1.36M | 0 |
| Jan 15, 2025 | Whittenburg Mark G | General Counsel and Secretary | Sell | 50,000 | $55.14 | $2.76M | 0 |
| Dec 3, 2024 | Cowles Bradford A | President | Sell | 50,000 | $55.07 | $2.75M | 0 |
| Dec 3, 2024 | Giles Jeffrey D | EVP, Corporate Department | Sell | 25,000 | $54.71 | $1.37M | 0 |
| Dec 3, 2024 | LeClair Stephen O | Chief Executive Officer | Sell | 200,000 | $54.88 | $10.98M | 0 |
| Dec 3, 2024 | NEWMAN MARGARET | Director | Sell | 15,000 | $55.25 | $828.7K | 0 |
| Jul 16, 2024 | Gipson Dennis G | Director | Sell | 25,000 | $53.08 | $1.33M | 0 |
| Jul 15, 2024 | Castellano James G | Director | Sell | 12,500 | $52.22 | $652.8K | 0 |
| Jul 10, 2024 | Castellano James G | Director | Sell | 12,500 | $50.69 | $633.6K | 0 |
| Feb 12, 2024 | Giles Jeffrey D | VP, Corporate Department | Sell | 40,000 | $44.14 | $1.77M | 0 |
| Feb 12, 2024 | Kimbrough Orvin T | Director | Sell | 5,000 | $44.17 | $220.8K | 0 |
| Feb 12, 2024 | LeClair Stephen O | Chief Executive Officer | Sell | 150,000 | $44.14 | $6.62M | 0 |
| Feb 12, 2024 | Schneider Laura K | Chief Human Resources Officer | Sell | 100,000 | $44.14 | $4.41M | 0 |
| Jan 16, 2024 | Schaller John R | President | Sell | 50,000 | $40.99 | $2.05M | 0 |
| Jan 12, 2024 | Kimbrough Orvin T | Director | Sell | 5,000 | $41.06 | $205.3K | 0 |
| Jan 11, 2024 | LeClair Stephen O | Chief Executive Officer | Sell | 150,000 | $40.66 | $6.10M | 0 |
| Jan 11, 2024 | Schneider Laura K | Chief Human Resources Officer | Sell | 100,000 | $40.63 | $4.06M | 0 |
| Jul 13, 2023 | Schaller John R | President | Sell | 25,000 | $31.96 | $798.9K | 0 |
| Jun 27, 2023 | Schneider Laura K | Chief Human Resources Officer | Sell | 49,904 | $30.03 | $1.50M | 0 |
| Jun 6, 2023 | Cowles Bradford A | President | Sell | 24,889 | $28.10 | $699.3K | 0 |
CNM Insiders
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