Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>

Common stock purchase or sale:
Transaction Date |
Reported DateTime |
Company | Symbol | Insider Relationship |
Shares Traded |
Average Price |
Total Amount |
Shares Owned |
Filing |
2024-05-08 Sale |
2024-05-10 6:38 pm |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
50,000 | $59.5 | $2,975,005 | 890,148 (Indirect Direct) |
View |
2024-04-08 Sale |
2024-04-10 5:03 pm |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
50,000 | $58.51 | $2,925,730 | 940,148 (Indirect Direct) |
View |
2023-11-15 Sale |
2023-11-17 5:16 pm |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
40,000 | $34.01 | $1,360,480 | 975,471 (Indirect Direct) |
View |
2023-11-09 Sale |
2023-11-13 5:37 pm |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
20,000 | $32.1 | $642,022 | 995,471 (Indirect Direct) |
View |
2023-10-04 Sale |
2023-10-06 5:46 pm |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
20,000 | $30.02 | $600,330 | 1,015,471 (Indirect Direct) |
View |
2023-09-25 Sale |
2023-09-27 9:02 pm |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
40,000 | $28.44 | $1,137,740 | 1,056,074 (Indirect Direct) |
View |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date |
Reported DateTime |
Exercisable Expiration |
Company | Symnbol | Insider Relationship |
Shares Traded |
Conversion Price |
Shares Owned |
Filing |
2025-03-31 Option Award |
2025-04-02 6:31 pm |
N/A 2035-03-31 |
Core & Main Inc. | CNM | Witkowski Mark R Chief Executive Officer |
83,550 | $0 | 109,305 (Direct) |
View |
2025-03-13 Option Award |
2025-03-17 8:49 pm |
N/A 2035-03-13 |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
60,390 | $0 | 78,849 (Direct) |
View |
2025-03-11 Tax Withholding |
2025-03-13 5:11 pm |
N/A N/A |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
925 | $46.55 | 18,459 (Direct) |
View |
2025-03-10 Tax Withholding |
2025-03-11 6:53 pm |
N/A N/A |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
996 | $46.69 | 19,384 (Direct) |
View |
2025-03-07 Tax Withholding |
2025-03-11 6:53 pm |
N/A N/A |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
536 | $47.87 | 19,384 (Direct) |
View |
2023-03-13 Tax Withholding |
2025-01-17 5:00 pm |
N/A N/A |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
1,054 | $21.45 | 20,916 (Direct) |
View |
2024-03-11 Tax Withholding |
2025-01-17 5:00 pm |
N/A N/A |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
1,928 | $48.29 | 20,916 (Direct) |
View |
2024-05-08 Other |
2024-05-10 6:38 pm |
N/A N/A |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
100,000 | $0 | 890,148 (Indirect) |
View |
2024-05-08 Conversion |
2024-05-10 6:38 pm |
N/A N/A |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
50,000 | $0 | 890,148 (Direct) |
View |
2024-04-08 Other |
2024-04-10 5:03 pm |
N/A N/A |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
100,000 | $0 | 940,148 (Indirect) |
View |
2024-04-08 Conversion |
2024-04-10 5:03 pm |
N/A N/A |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
50,000 | $0 | 940,148 (Direct) |
View |
2024-03-07 Option Award |
2024-03-11 9:11 pm |
N/A 2034-03-07 |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
41,403 | $0 | 60,624 (Direct) |
View |
2023-11-15 Other |
2023-11-17 5:16 pm |
N/A N/A |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
80,000 | $0 | 975,471 (Indirect) |
View |
2023-11-15 Conversion |
2023-11-17 5:16 pm |
N/A N/A |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
40,000 | $0 | 975,471 (Direct) |
View |
2023-11-09 Other |
2023-11-13 5:37 pm |
N/A N/A |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
40,000 | $0 | 995,471 (Indirect) |
View |
2023-11-09 Conversion |
2023-11-13 5:37 pm |
N/A N/A |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
20,000 | $0 | 995,471 (Direct) |
View |
2023-10-04 Other |
2023-10-06 5:46 pm |
N/A N/A |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
40,000 | $0 | 1,015,471 (Indirect) |
View |
2023-10-04 Conversion |
2023-10-06 5:46 pm |
N/A N/A |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
20,000 | $0 | 1,015,471 (Direct) |
View |
2023-09-25 Other |
2023-09-27 9:02 pm |
N/A N/A |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
79,397 | $0 | 1,056,074 (Indirect) |
View |
2023-09-25 Conversion |
2023-09-27 9:02 pm |
N/A N/A |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
39,397 | $0 | 1,056,074 (Direct) |
View |
2023-03-10 Option Award |
2023-03-14 7:31 pm |
N/A 2033-03-10 |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
89,229 | $0 | 99,384 (Direct) |
View |
2022-03-11 Option Award |
2022-03-15 4:22 pm |
N/A 2032-03-10 |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
79,266 | $0 | 79,869 (Direct) |
View |
Ownership |
2021-07-23 9:28 pm |
N/A N/A |
Core & Main Inc. | CNM | Witkowski Mark R Chief Financial Officer |
0 | $0 | 1,036,250 (Indirect) |
View |