Whittenburg Mark G (CIK 1866737) reported 11 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-03-13). Recent activity: Sell CNM (331 shares), Sell CNM (278 shares), Sell CNM (557 shares), Buy CNM (900 shares), Sell CNM (900 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-13 | Core & Main, Inc. (CNM) | General Counsel and Secretary | Sell | 331 | $16,272 |
| 2026-03-11 | Core & Main, Inc. (CNM) | General Counsel and Secretary | Sell | 278 | $13,889 |
| 2026-03-11 | Core & Main, Inc. (CNM) | General Counsel and Secretary | Sell | 557 | $27,505 |
| 2025-06-10 | Core & Main, Inc. (CNM) | General Counsel and Secretary | Buy | 900 | $0 |
| 2025-06-10 | Core & Main, Inc. (CNM) | General Counsel and Secretary | Sell | 900 | $54,027 |
| 2025-06-10 | Core & Main, Inc. (CNM) | General Counsel and Secretary | Buy | 49,100 | $0 |
| 2025-06-10 | Core & Main, Inc. (CNM) | General Counsel and Secretary | Sell | 49,100 | $2.9M |
| 2025-03-17 | Core & Main, Inc. (CNM) | General Counsel and Secretary | Buy | 3,411 | $0 |
| 2025-03-13 | Core & Main, Inc. (CNM) | General Counsel and Secretary | Sell | 510 | $23,740 |
| 2025-03-11 | Core & Main, Inc. (CNM) | General Counsel and Secretary | Sell | 278 | $13,308 |
| 2025-03-11 | Core & Main, Inc. (CNM) | General Counsel and Secretary | Sell | 599 | $27,967 |
Source: SEC Form 4 filings · as of 2026-03-13