Witkowski Mark R
- SEC CIK
- 0001866738
No open-market purchases or sales filed in the past year.
Current role at each company
- CNM Core & Main, Inc.Chief Executive Officeras of Mar 13, 2026
Open-market trades in the past year
Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.
- Bought
- –
- 0 filings
- Sold
- –
- 0 filings
- Net
- –
- Bought minus sold
- Companies
- 0
- With open-market trades
Trades
Every Form 4 that lists Witkowski Mark R as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Aug 20, 2025 (view filing) | Aug 18 | 2 days | Witkowski Mark RChief Executive Officer | SSaleClass A Common Stock | −100.0K | $64.08 | −$6.41M | −73.6%35.8K after | 10b5-1 |
| Jul 21, 2025 (view filing) | Jul 17 | 4 days | Witkowski Mark RChief Executive Officer | SSaleClass A Common Stock | −100.0K | $61.26 | −$6.13M | −73.6%35.8K after | 2 lots10b5-1 |
| May 10, 2024 (view filing) | May 8 | 2 days | Witkowski Mark RChief Financial Officer | SSaleClass A Common Stock | −50.0K | $59.50 | −$2.98M | −67.7%23.9K after | 10b5-1 |
| Apr 10, 2024 (view filing) | Apr 8 | 2 days | Witkowski Mark RChief Financial Officer | SSaleClass A Common Stock | −50.0K | $58.51 | −$2.93M | −67.7%23.9K after | 10b5-1 |
| Nov 17, 2023 (view filing) | Nov 15 | 2 days | Witkowski Mark RChief Financial Officer | SSaleClass A Common Stock | −40.0K | $34.01 | −$1.36M | −67.5%19.2K after | 10b5-1 |
| Nov 13, 2023 (view filing) | Nov 9 | 4 days | Witkowski Mark RChief Financial Officer | SSaleClass A Common Stock | −20.0K | $32.10 | −$642.0K | −51.0%19.2K after | 10b5-1 |
| Oct 6, 2023 (view filing) | Oct 4 | 2 days | Witkowski Mark RChief Financial Officer | SSaleClass A Common Stock | −20.0K | $30.02 | −$600.4K | −51.0%19.2K after | 10b5-1 |
| Sep 27, 2023 (view filing) | Sep 25 | 2 days | Witkowski Mark RChief Financial Officer | SSaleClass A Common Stock | −40.0K | $28.44 | −$1.14M | −67.5%19.2K after | 10b5-1 |