Witkowski Mark R Insider Trading Activity
Witkowski Mark R has been net-selling over the last 12 months with 0 purchases and 3 sales across 1 company.
CNM is the most-traded position with 3 trades. The largest single transaction was a sale of CNM for $6.4M on Aug 18, 2025.
Performance Scorecard
Forward stock performance after each transaction by Witkowski Mark R. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | — | +4.0% | 33% | 3 |
| 90 days | — | +20.2% | 100% | 3 |
| 120 days | — | +20.3% | 100% | 3 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersCNM · Core & Main, Inc.
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Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| CNM | Core & Main, Inc. | 3 | $12.5M |
Other insiders at Core & Main, Inc.
1 other tracked filer at CNM.