Core & Main, Inc. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Stephens John Weldon | Chief Accounting Officer | Option Exercise | 12,717 | $20.81 | $264,641 | 16,837 | Sep 12, 2025 |
| Harper Carla D | Senior VP, Human Resources | Award / Grant | 2,091 | — | — | 11,766 | Sep 3, 2025 |
| Witkowski Mark R | Chief Executive Officer | C | 100,000 | — | — | 135,847 | Aug 18, 2025 |
| HUEBERT MICHAEL G. | President | Tax Withholding | 1,337 | $65.03 | $86,945 | 15,634 | Jul 22, 2025 |
| Bradbury Robyn L | Chief Financial Officer | C | 5,000 | — | — | 13,555 | Jul 22, 2025 |
| Castellano James G | — | C | 34,674 | — | — | 43,994 | Jul 18, 2025 |
| Kimbrough Orvin T | — | Sale | 23,962 | $61.77 | $1,480,133 | 13,958 | Jul 18, 2025 |
| Witkowski Mark R | Chief Executive Officer | C | 100,000 | — | — | 135,847 | Jul 17, 2025 |
| LeClair Stephen O | Executive Chair | Option Exercise | 44,972 | $20.81 | $935,867 | 115,708 | Jul 3, 2025 |
| Bradbury Robyn L | Chief Financial Officer | C | 24,957 | — | — | 33,555 | Jul 1, 2025 |
| Castellano James G | — | Award / Grant | 2,189 | — | — | 4,638 | Jun 24, 2025 |
| NEWMAN MARGARET | — | Award / Grant | 2,189 | — | — | 13,958 | Jun 24, 2025 |
| Gipson Dennis G | — | Award / Grant | 2,189 | — | — | 13,958 | Jun 24, 2025 |
| Kimbrough Orvin T | — | Award / Grant | 2,189 | — | — | 13,958 | Jun 24, 2025 |
| Buck Robert M | — | Award / Grant | 2,189 | — | — | 13,050 | Jun 24, 2025 |
| Amirthalingam Bhavani | — | Award / Grant | 2,189 | — | — | 15,156 | Jun 24, 2025 |
| Hope James D | — | Award / Grant | 2,189 | — | — | 4,967 | Jun 24, 2025 |
| MAZZARELLA KATHLEEN M | — | Award / Grant | 2,189 | — | — | 13,958 | Jun 24, 2025 |
| Whittenburg Mark G | General Counsel and Secretary | C | 49,100 | — | — | 58,791 | Jun 6, 2025 |
| Schneider Laura K | Chief Human Resources Officer | C | 45,695 | — | — | 58,568 | Jun 3, 2025 |
| Schaller John R | Executive Vice President | Option Exercise | 9,794 | $50.12 | $490,875 | 29,483 | May 28, 2025 |
| Stephens John Weldon | Chief Accounting Officer | Sale | 31,750 | $53.03 | $1,683,703 | 4,120 | Apr 28, 2025 |
| Castellano James G | — | Gift | 9,320 | — | — | 2,449 | Apr 17, 2025 |
| Castellano James G | — | Gift | 9,320 | — | — | 9,320 | Apr 17, 2025 |
| Stephens John Weldon | Chief Accounting Officer | C | 41,963 | — | — | 46,083 | Apr 2, 2025 |
| Bradbury Robyn L | Chief Financial Officer | Award / Grant | 2,913 | — | — | 8,555 | Mar 31, 2025 |
| Witkowski Mark R | Chief Executive Officer | Award / Grant | 10,092 | — | — | 35,847 | Mar 31, 2025 |
| Whittenburg Mark G | General Counsel and Secretary | Award / Grant | 3,411 | — | — | 9,691 | Mar 13, 2025 |
| Giles Jeffrey D | EVP, Corporate Department | Award / Grant | 2,988 | — | — | 12,083 | Mar 13, 2025 |
| Schneider Laura K | Chief Human Resources Officer | Award / Grant | 3,276 | — | — | 12,873 | Mar 13, 2025 |
| Witkowski Mark R | Chief Financial Officer | Award / Grant | 7,296 | — | — | 25,755 | Mar 13, 2025 |
| Cowles Bradford A | President | Award / Grant | 6,162 | — | — | 20,188 | Mar 13, 2025 |
| Schaller John R | Executive Vice President | Award / Grant | 4,215 | — | — | 19,689 | Mar 13, 2025 |
| Stephens John Weldon | Chief Accounting Officer | Award / Grant | 933 | — | — | 4,120 | Mar 13, 2025 |
| HUEBERT MICHAEL G. | President | Award / Grant | 4,494 | — | — | 16,971 | Mar 13, 2025 |
| Schneider Laura K | Chief Human Resources Officer | Tax Withholding | 434 | $46.55 | $20,203 | 9,597 | Mar 11, 2025 |
| Cowles Bradford A | President | Tax Withholding | 724 | $46.55 | $33,702 | 14,026 | Mar 11, 2025 |
| Schaller John R | Executive Vice President | Option Exercise | 19,292 | $20.81 | $401,467 | 34,766 | Mar 11, 2025 |
| Giles Jeffrey D | EVP, Corporate Department | Tax Withholding | 436 | $46.55 | $20,296 | 9,095 | Mar 11, 2025 |
| Stephens John Weldon | Chief Accounting Officer | Tax Withholding | 200 | $46.55 | $9,310 | 3,187 | Mar 11, 2025 |
| Witkowski Mark R | Chief Financial Officer | Tax Withholding | 925 | $46.55 | $43,059 | 18,459 | Mar 11, 2025 |
| Whittenburg Mark G | General Counsel and Secretary | Tax Withholding | 510 | $46.55 | $23,741 | 6,280 | Mar 11, 2025 |
| LeClair Stephen O | Chief Executive Officer | Tax Withholding | 4,889 | $46.55 | $227,583 | 70,736 | Mar 11, 2025 |
| LeClair Stephen O | Chief Executive Officer | Tax Withholding | 1,841 | $47.87 | $88,129 | 79,296 | Mar 10, 2025 |
| Whittenburg Mark G | General Counsel and Secretary | Tax Withholding | 278 | $47.87 | $13,308 | 7,389 | Mar 10, 2025 |
| Witkowski Mark R | Chief Financial Officer | Tax Withholding | 536 | $47.87 | $25,658 | 20,380 | Mar 10, 2025 |
| Schaller John R | Executive Vice President | Tax Withholding | 462 | $47.87 | $22,116 | 17,436 | Mar 10, 2025 |
| Giles Jeffrey D | EVP, Corporate Department | Tax Withholding | 467 | $46.69 | $21,804 | 9,531 | Mar 7, 2025 |
| HUEBERT MICHAEL G. | President | Tax Withholding | 359 | $47.87 | $17,185 | 12,477 | Mar 7, 2025 |
| Stephens John Weldon | Chief Accounting Officer | Tax Withholding | 198 | $46.69 | $9,245 | 3,387 | Mar 7, 2025 |