Witkowski Mark R
SEC CIK 1866738 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| CNM | Core & Main, Inc. | CFO | 51.1K | — | $22.18M | 29 | 2022-03-11 | 2026-03-12 |
Most active insiders at CNM, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | Bradbury Robyn L | CFO | — | $262.7K |
| 2 | Hope James D | Dir | $195.1K | — |
| 3 | Harper Carla D | Senior VP, Human Resources | — | — |
| 4 | Stephens John Weldon | CAO | — | — |
| 5 | Kimbrough Orvin T | Dir | — | — |
| 6 | Witkowski Mark R | CEO, Dir | — | — |
| 7 | Whittenburg Mark G | GC, Sec | — | — |
| 8 | Giles Jeffrey D | EVP, Corp. Development | — | — |
| 9 | Castellano James G | Dir | — | — |
| 10 | Gipson Dennis G | Dir | — | — |
Transactions 29
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-03-13 | 2026-03-11 | CNM | Core & Main, Inc. | Witkowski Mark R | CEO, Dir | F - Tax | $49.16 | -1,685 | 32.7K | -5% | -$82.8K |
| D | 2026-03-13 | 2026-03-12 | CNM | Core & Main, Inc. | Witkowski Mark R | CEO, Dir | A - Grant | $0.00 | +18.4K | 51.1K | +56% | $0 |
| M | 2026-03-11 | 2026-03-09+ | CNM | Core & Main, Inc. | Witkowski Mark R | CEO, Dir | F - Tax | $49.58 | -1,415 | 34.4K | -4% | -$70.1K |
| D | 2025-08-20 | 2025-08-18 | CNM | Core & Main, Inc. | Witkowski Mark R | CEO, Dir | S - Sale | $64.08 | -100.0K | 35.8K | -74% | -$6.41M |
| D | 2025-08-20 | 2025-08-18 | CNM | Core & Main, Inc. | Witkowski Mark R | CEO, Dir | C - Cnv Deriv | $0.00 | +100.0K | 135.8K | +279% | $0 |
| DM | 2025-07-21 | 2025-07-17 | CNM | Core & Main, Inc. | Witkowski Mark R | CEO, Dir | S - Sale | $61.26 | -100.0K | 35.8K | -74% | -$6.13M |
| D | 2025-07-21 | 2025-07-17 | CNM | Core & Main, Inc. | Witkowski Mark R | CEO, Dir | C - Cnv Deriv | $0.00 | +100.0K | 135.8K | +279% | $0 |
| D | 2025-04-02 | 2025-03-31 | CNM | Core & Main, Inc. | Witkowski Mark R | CEO, Dir | A - Grant | $0.00 | +10.1K | 35.8K | +39% | $0 |
| D | 2025-03-17 | 2025-03-13 | CNM | Core & Main, Inc. | Witkowski Mark R | CFO | A - Grant | $0.00 | +7,296 | 25.8K | +40% | $0 |
| 2025-03-13 | 2025-03-11 | CNM | Core & Main, Inc. | Witkowski Mark R | CFO | F - Tax | $46.55 | -925 | 18.5K | -5% | -$43.1K | |
| M | 2025-03-11 | 2025-03-07+ | CNM | Core & Main, Inc. | Witkowski Mark R | CFO | F - Tax | $47.10 | -1,532 | 20.4K | -7% | -$72.2K |
| M | 2025-01-17 | 2023-03-13+ | CNM | Core & Main, Inc. | Witkowski Mark R | CFO | F - Tax | $38.80 | -2,982 | 21.8K | -12% | -$115.7K |
| D | 2024-05-10 | 2024-05-08 | CNM | Core & Main, Inc. | Witkowski Mark R | CFO | S - Sale | $59.50 | -50.0K | 23.9K | -68% | -$2.98M |
| D | 2024-05-10 | 2024-05-08 | CNM | Core & Main, Inc. | Witkowski Mark R | CFO | C - Cnv Deriv | $0.00 | +50.0K | 73.9K | +209% | $0 |
| D | 2024-04-10 | 2024-04-08 | CNM | Core & Main, Inc. | Witkowski Mark R | CFO | S - Sale | $58.51 | -50.0K | 23.9K | -68% | -$2.93M |
| D | 2024-04-10 | 2024-04-08 | CNM | Core & Main, Inc. | Witkowski Mark R | CFO | C - Cnv Deriv | $0.00 | +50.0K | 73.9K | +209% | $0 |
| D | 2024-03-11 | 2024-03-07 | CNM | Core & Main, Inc. | Witkowski Mark R | CFO | A - Grant | $0.00 | +4,677 | 23.9K | +24% | $0 |
| D | 2023-11-17 | 2023-11-15 | CNM | Core & Main, Inc. | Witkowski Mark R | CFO | S - Sale | $34.01 | -40.0K | 19.2K | -68% | -$1.36M |
| D | 2023-11-17 | 2023-11-15 | CNM | Core & Main, Inc. | Witkowski Mark R | CFO | C - Cnv Deriv | $0.00 | +40.0K | 59.2K | +208% | $0 |
| D | 2023-11-13 | 2023-11-09 | CNM | Core & Main, Inc. | Witkowski Mark R | CFO | S - Sale | $32.10 | -20.0K | 19.2K | -51% | -$642.0K |
| D | 2023-11-13 | 2023-11-09 | CNM | Core & Main, Inc. | Witkowski Mark R | CFO | C - Cnv Deriv | $0.00 | +20.0K | 39.2K | +104% | $0 |
| D | 2023-10-06 | 2023-10-04 | CNM | Core & Main, Inc. | Witkowski Mark R | CFO | S - Sale | $30.02 | -20.0K | 19.2K | -51% | -$600.4K |
| D | 2023-10-06 | 2023-10-04 | CNM | Core & Main, Inc. | Witkowski Mark R | CFO | C - Cnv Deriv | $0.00 | +20.0K | 39.2K | +104% | $0 |
| D | 2023-09-27 | 2023-09-25 | CNM | Core & Main, Inc. | Witkowski Mark R | CFO | S - Sale | $28.44 | -40.0K | 19.2K | -68% | -$1.14M |
| D | 2023-09-27 | 2023-09-25 | CNM | Core & Main, Inc. | Witkowski Mark R | CFO | C - Cnv Deriv | $0.00 | +39.4K | 59.2K | +199% | $0 |
| D | 2023-09-27 | 2023-09-25 | CNM | Core & Main, Inc. | Witkowski Mark R | CFO | J - Other | $0.00 | +603 | 19.8K | +3% | $0 |
| DI | 2023-09-27 | 2023-09-25 | CNM | Core & Main, Inc. | Witkowski Mark R | CFO | J - Other | $0.00 | -603 | 0 | -100% | $0 |
| D | 2023-03-14 | 2023-03-10 | CNM | Core & Main, Inc. | Witkowski Mark R | CFO | A - Grant | $0.00 | +9,669 | 19.2K | +101% | $0 |
| D | 2022-03-15 | 2022-03-11 | CNM | Core & Main, Inc. | Witkowski Mark R | CFO | A - Grant | $0.00 | +9,552 | 9,552 | New | $0 |
Purchase Sale Sale after option exercise All abbreviations