Mark R Witkowski sold $6.1M of CNM
Chief Executive Officer at Core & Main, Inc.. 100,000 shares at an average of $61.26, traded Jul 17, 2025, filed Jul 21, 2025.
Score components
- +25RoleCEO
- +25Trade size$6.1M at market
- +20Share of holdings soldSold 74% of holdings
- +15Cluster5 insiders selling within 14 days
- -2010b5-1 planPre-scheduled under a 10b5-1 plan
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
This signal so far: 1m +1.7%, 3m -16.4%, 6m -7.0%.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001856525-25-000151, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Jul 17, 2025 | CConversion Class A Common Stock10b5-1 | +100,000 | $0.00 | $0 | 135,847 | Jul 21, 2025 |
| Jul 17, 2025 | SOpen-market sale Class A Common Stock10b5-1 | -72,331 | $61.12 | $4.4M | 63,516 | Jul 21, 2025 |
| Jul 17, 2025 | SOpen-market sale Class A Common Stock10b5-1 | -27,669 | $61.63 | $1.7M | 35,847 | Jul 21, 2025 |
| Jul 17, 2025 | JOther Class B Common Stock and Limited Partnership Interestsderivativeindirect: By LLC10b5-1 | -100,000 | $0.00 | $0 | 716,250 | Jul 21, 2025 |
| Jul 17, 2025 | JOther Class B Common Stock and Limited Partnership Interestsderivative10b5-1 | +100,000 | $0.00 | $0 | 100,000 | Jul 21, 2025 |
| Jul 17, 2025 | CConversion Class B Common Stock and Limited Partnership Interestsderivative10b5-1 | -100,000 | $0.00 | $0 | 0 | Jul 21, 2025 |
Related signals
Other insiders at Core & Main, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 54Moderate | CNMbuy Core & Main, Inc. | James D Hope director | $95k 2,067 shares | +21% | |
| 25Weak | Core & Main, Inc. | Robyn L Bradbury Chief Financial Officer | $263k 5,000 shares | -29% | |
| 35Weak | CNMbuy Core & Main, Inc. | James D Hope director | $100k 1,972 shares | +40% | |
| 50Moderate | Core & Main, Inc. | Mark R Witkowski Chief Executive Officer | $6.4M 100,000 shares | -74% | |
| 41Moderate | Core & Main, Inc. | Robyn L Bradbury Chief Financial Officer | $323k 5,000 shares | -37% | |
| 55Moderate | Core & Main, Inc. | James G Castellano director | $2.7M 43,994 shares | -100% | |
| 55Moderate | Core & Main, Inc. | Orvin T Kimbrough director | $1.5M 23,962 shares | -63% | |
| 65Notable | Core & Main, Inc. | Stephen O LeClair Executive Chair | $7.8M 125,000 shares | -83% | |
| 55Moderate | Core & Main, Inc. | Robyn L Bradbury Chief Financial Officer | $1.5M 25,000 shares | -75% | |
| 55Moderate | Core & Main, Inc. | Mark G Whittenburg General Counsel and Secretary | $3.0M 50,000 shares | -472% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.