Core & Main, Inc. (CNM)
Data as of , from SEC Form 4 filings.
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About Core & Main, Inc. (CNM)
Core & Main, Inc. files with the SEC under CIK 0001856525 and is classified as durable goods, nec. We track it alongside the rest of the Industrials sector.
CNM Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Tax withholding / forfeiture | 2 | 1,543 |
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
CNM insider transactions (Form 4)
5349 Form 4 filings on record, the earliest from Oct 10, 2024, newest first. Filing history page 1 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Carla D. Harper - Officer | Tax withholding / forfeiture | Class A Common Stock | 242 footnote F1 | $46.32 | $11K | |
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| Michael G. Huebert - Officer | Tax withholding / forfeiture | Class A Common Stock | 1,301 footnote F1 | $43.75 | $57K | |
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| James D. Hope - Director | Open-market purchase | Class A Common Stock | 2,067 | $46.01 | $95K | |
| James G. Castellano - Director | Grant or award | Class A Common Stock | 2,799 footnote F1 | $0.00 | - | |
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| Margaret Newman - Director | Grant or award | Class A Common Stock | 2,799 footnote F1 | $0.00 | - | |
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| M. Susan Hardwick - Director | Grant or award | Class A Common Stock | 2,799 footnote F1 | $0.00 | - | |
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 Kathleen M. Mazzarella - Director | Grant or award | Class A Common Stock | 2,799 footnote F1 | $0.00 | - | |
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| James D. Hope - Director | Grant or award | Class A Common Stock | 2,799 footnote F1 | $0.00 | - | |
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 Bhavani Amirthalingam - Director | Grant or award | Class A Common Stock | 2,799 footnote F1 | $0.00 | - | |
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 Dennis G. Gipson - Director | Grant or award | Class A Common Stock | 2,799 footnote F1 | $0.00 | - | |
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| Orvin T. Kimbrough - Director | Grant or award | Class A Common Stock | 2,799 footnote F1 | $0.00 | - | |
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| Robert M. Buck - Director | Grant or award | Class A Common Stock | 2,799 footnote F1 | $0.00 | - | |
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| Carla D. Harper - Officer | Tax withholding / forfeiture | Class A Common Stock | 568 footnote F1 | $47.25 | $27K | |
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| Robyn L. Bradbury - Officer | Other | Class A Common Stock | 5,000 footnote F2 | $0.00 | - | |
| Robyn L. Bradbury - Officer | Open-market sale | Class A Common Stock | 1,647 | $51.94 footnote F4 | $86K | |
| Robyn L. Bradbury - Officer | Open-market sale | Class A Common Stock | 3,353 | $52.84 footnote F5 | $177K | |
| Robyn L. Bradbury - Officer | Other | Class B Common Stock and Limited Partnership Interests | 5,000 footnote F2 | $0.00 | - | |
| Robyn L. Bradbury - Officer | Other | Class B Common Stock and Limited Partnership Interests | 5,000 footnote F2 | $0.00 | - | |
| Robyn L. Bradbury - Officer | Other | Class B Common Stock and Limited Partnership Interests | 5,000 footnote F1 | $0.00 | - | |
| ||||||
| James D. Hope - Director | Open-market purchase | Class A Common Stock | 1,972 | $50.70 | $100K | |
| M. Susan Hardwick - Director | Grant or award | Class A Common Stock | 580 footnote F1 | $0.00 | - | |
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| Jeffrey D. Giles - Officer | Grant or award | Class A Common Stock | 3,021 footnote F1 | $0.00 | - | |
| Jeffrey D. Giles - Officer | Grant or award | Options (Rights to Buy) | 21,585 | $0.00 | - | |
| ||||||
 Mark G. Whittenburg - Officer | Tax withholding / forfeiture | Class A Common Stock | 331 footnote F1 | $49.16 | $16K | |
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| Robyn L. Bradbury - Officer | Grant or award | Options (Rights to Buy) | 34,488 | $0.00 | - | |
| Robyn L. Bradbury - Officer | Tax withholding / forfeiture | Class A Common Stock | 404 footnote F1 | $49.16 | $20K | |
| Robyn L. Bradbury - Officer | Grant or award | Class A Common Stock | 4,824 footnote F2 | $0.00 | - | |
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| Mark R. Witkowski - Officer | Tax withholding / forfeiture | Class A Common Stock | 1,685 footnote F1 | $49.16 | $83K | |
| Mark R. Witkowski - Officer | Grant or award | Class A Common Stock | 18,372 footnote F2 | $0.00 | - | |
| Mark R. Witkowski - Officer | Grant or award | Options (Rights to Buy) | 131,382 | $0.00 | - | |
| ||||||
| Bradford A. Cowles - Officer | Grant or award | Class A Common Stock | 7,086 footnote F2 | $0.00 | - | |
| Bradford A. Cowles - Officer | Grant or award | Options (Rights to Buy) | 50,676 | $0.00 | - | |
| Bradford A. Cowles - Officer | Tax withholding / forfeiture | Class A Common Stock | 607 footnote F1 | $49.16 | $30K | |
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| John Weldon Stephens - Officer | Tax withholding / forfeiture | Class A Common Stock | 107 footnote F1 | $49.16 | $5K | |
| John Weldon Stephens - Officer | Grant or award | Class A Common Stock | 936 footnote F2 | $0.00 | - | |
| John Weldon Stephens - Officer | Grant or award | Options (Rights to Buy) | 6,684 | $0.00 | - | |
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| Michael G. Huebert - Officer | Tax withholding / forfeiture | Class A Common Stock | 447 footnote F1 | $49.16 | $22K | |
| Michael G. Huebert - Officer | Grant or award | Class A Common Stock | 10,500 footnote F2 | $0.00 | - | |
| Michael G. Huebert - Officer | Grant or award | Options (Rights to Buy) | 37,539 | $0.00 | - | |
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| Carla D. Harper - Officer | Tax withholding / forfeiture | Class A Common Stock | 89 footnote F1 | $49.16 | $4K | |
| Carla D. Harper - Officer | Grant or award | Class A Common Stock | 2,463 footnote F2 | $0.00 | - | |
| Carla D. Harper - Officer | Grant or award | Options (Rights to Buy) | 17,598 | $0.00 | - | |
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| Mark G. Whittenburg - Officer | Tax withholding / forfeiture | Class A Common Stock | 278 footnote F1 | $49.96 | $14K | |
| Mark G. Whittenburg - Officer | Tax withholding / forfeiture | Class A Common Stock | 557 footnote F1 | $49.38 | $28K | |
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| Carla D. Harper - Officer | Tax withholding / forfeiture | Class A Common Stock | 77 footnote F1 | $49.96 | $4K | |
| Carla D. Harper - Officer | Tax withholding / forfeiture | Class A Common Stock | 189 footnote F1 | $49.38 | $9K | |
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| John Weldon Stephens - Officer | Tax withholding / forfeiture | Class A Common Stock | 94 footnote F1 | $49.96 | $5K | |
| John Weldon Stephens - Officer | Tax withholding / forfeiture | Class A Common Stock | 198 footnote F1 | $49.38 | $10K | |
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| Michael G. Huebert - Officer | Tax withholding / forfeiture | Class A Common Stock | 350 footnote F1 | $49.96 | $17K | |
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| Bradford A. Cowles - Officer | Tax withholding / forfeiture | Class A Common Stock | 435 footnote F1 | $49.96 | $22K | |
| Bradford A. Cowles - Officer | Tax withholding / forfeiture | Class A Common Stock | 741 footnote F1 | $49.38 | $37K | |
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| Mark R. Witkowski - Officer | Tax withholding / forfeiture | Class A Common Stock | 478 footnote F1 | $49.96 | $24K | |
| Mark R. Witkowski - Officer | Tax withholding / forfeiture | Class A Common Stock | 937 footnote F1 | $49.38 | $46K | |
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Item 2.02, 9.01
Item 1.01, 9.01
Item 8.01, 9.01
Item 5.07, 9.01
Recent CNM Form 144 notices of proposed sale
3An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| - | - | - | - | View on EDGAR | |
| - | - | - | - |
Stock trades in CNM disclosed by members of the U.S. House in the last 12 months, newest first. Values are the ranges as filed.
| Member | Type | Traded | Disclosed | Value range | Owner | Days to disclose | Filing |
|---|---|---|---|---|---|---|---|
 April McClain DelaneyDemocrat, MD-06 | Sale |
CNM insider trading FAQ
What is the latest insider trade for CNM?
Core & Main, Inc. (CNM) had 2 insider filings in the last 90 days, with the most recent on 2026-08-05. The full record for CNM runs to 49 Form 4 filings, the earliest from 2024-10-10. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying CNM stock?
No insider purchases of CNM were filed in the last 90 days. 2 purchases are on record for this company.
How many insiders are selling CNM stock?
No insider sales of CNM were filed in the last 90 days. 17 sales are on record for this company.
Where can I see CNM SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects CNM Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Industrials companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Carla D. Harper view on EDGAR
- - Michael G. Huebert view on EDGAR
- - James D. Hope view on EDGAR
- - James G. Castellano view on EDGAR
- - Margaret Newman view on EDGAR
- - M. Susan Hardwick view on EDGAR
- - Kathleen M. Mazzarella view on EDGAR
- - James D. Hope view on EDGAR
- - Bhavani Amirthalingam view on EDGAR
Related companies with recent insider activity
Learn more
- What the Form 4 transaction codes mean
- Grants, option exercises, gifts and tax withholding are not trades on the market. The codes say which is which.
- Form 144 vs Form 4
- A Form 144 announces a planned sale; the Form 4 reports it after it happens.
- Insider activity in Industrials
- Where CNM's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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