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Core & Main, Inc. (CNM)
United States · Delayed Price · Currency is USD
Wholesale-Durable Goods, NEC
42.16+0.19 (+0.45%)
Insider Score
––Not scored
CNM Insider Score
Insiders here have filed 2 Form 4s in the last 90 days, but all of them are share awards, grants or other non-market transactions. Those are compensation, not a decision to buy, so they are not scored.
CNM Stock Insider Trading Activity
CNM stock’s insider trading shows 1 purchase for an estimated $95.11K by company insiders over the last 6 months.
Not enough price history.
Insider Trading Activity (Form 4 Filings)
An insider trade occurs when an individual that has non-public information about a company buys or sells shares of that company’s stock. Examples of insiders include a company’s executive officers (CEO, CFO, COO), its board of directors, and its major shareholders. Insiders are required to submit their trading activity to the SEC through Form 4 filings.
| Insider | Action | Shares | Avg Cost | Total | Δ Holdings | Held After | Date | Grade | Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| Witkowski Mark R CEO | Gift | 19,596 | — | — | 38.3% | 31,523 | Oct 16, 2026 | — | Form 4 |
| Harper Carla D Other | Tax withheld | 242 | $46.32 | $11.21K | 1.8% | 13,064 | Aug 4, 2026 | — | Form 4 |
| HUEBERT MICHAEL G. Other | Tax withheld | 1,301 | $43.75 | $56.92K | 5.1% | 24,036 | Jul 22, 2026 | — | Form 4 |
| Hope James D Director | Buy | 2,067 | $46.01 | $95.11K | 21.2% | 11,805 | Jul 6, 2026 | C | Form 4 |
| MAZZARELLA KATHLEEN M Director | Award | 2,799 | — | — | 20.1% | 16,757 | Jun 23, 2026 | — | Form 4 |
| Hardwick M Susan Director | Award | 2,799 | — | — | 483% | 3,379 | Jun 23, 2026 | — | Form 4 |
| Hope James D Director | Award | 2,799 | — | — | 40.3% | 9,738 | Jun 23, 2026 | — | Form 4 |
| Amirthalingam Bhavani Director | Award | 2,799 | — | — | 18.5% | 17,955 | Jun 23, 2026 | — | Form 4 |
| Gipson Dennis G Director | Award | 2,799 | — | — | 20.1% | 16,757 | Jun 23, 2026 | — | Form 4 |
| Kimbrough Orvin T Director | Award | 2,799 | — | — | 20.1% | 16,757 | Jun 23, 2026 | — | Form 4 |
| Buck Robert M Director | Award | 2,799 | — | — | 21.4% | 15,849 | Jun 23, 2026 | — | Form 4 |
| Castellano James G Director | Award | 2,799 | — | — | 60.3% | 7,437 | Jun 23, 2026 | — | Form 4 |
| NEWMAN MARGARET Director | Award | 2,799 | — | — | 20.1% | 16,757 | Jun 23, 2026 | — | Form 4 |
| Harper Carla D Other | Tax withheld | 568 | $47.25 | $26.84K | 4.1% | 13,306 | Jun 22, 2026 | — | Form 4 |
| Bradbury Robyn L CFO | Sell | 3,353 | $52.84 | $177.17K | 21.2% | 12,500 | Apr 17, 2026 | — | Form 4 |
| Bradbury Robyn L CFO | Converted | 5,000 | — | — | 40.0% | 17,500 | Apr 17, 2026 | — | Form 4 |
| Bradbury Robyn L CFO | Sell | 1,647 | $51.94 | $85.55K | 9.4% | 15,853 | Apr 17, 2026 | — | Form 4 |
| Hope James D Director | Buy | 1,972 | $50.70 | $99.98K | 39.7% | 6,939 | Apr 7, 2026 | CFirst Buy | Form 4 |
| Hardwick M Susan Director | Award | 580 | — | — | New | 580 | Apr 1, 2026 | — | Form 4 |
| Cowles Bradford A Other | Award | 7,086 | — | — | 38.5% | 25,491 | Mar 12, 2026 | — | Form 4 |
| Giles Jeffrey D Other | Award | 3,021 | — | — | 45.4% | 9,681 | Mar 12, 2026 | — | Form 4 |
| Witkowski Mark R CEO | Award | 18,372 | — | — | 56.1% | 51,119 | Mar 12, 2026 | — | Form 4 |
| Stephens John Weldon Other | Award | 936 | — | — | 5.7% | 17,374 | Mar 12, 2026 | — | Form 4 |
| HUEBERT MICHAEL G. Other | Award | 10,500 | — | — | 70.8% | 25,337 | Mar 12, 2026 | — | Form 4 |
| Harper Carla D Other | Award | 2,463 | — | — | 21.6% | 13,874 | Mar 12, 2026 | — | Form 4 |
| Bradbury Robyn L CFO | Award | 4,824 | — | — | 62.8% | 12,500 | Mar 12, 2026 | — | Form 4 |
What these mean— the action is the SEC’s own Form 4 transaction code. Only a buy or a sell is an open-market trade; the rest are transfers, awards and exercises, which is why they carry no price.
- Buy (P) — Open-market or private purchase
- Sell (S) — Open-market or private sale
- Award (A) — Grant or award from the company, not a purchase
- Tax withheld (F) — Shares withheld to pay tax or an exercise price
- Converted (C) — Conversion of a derivative security into shares
- Gift (G) — Bona fide gift
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.