KORALESKI JOHN J (CIK 1200010) reported 6 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-03-02). Recent activity: Buy MLM (69 shares), Buy MLM (75 shares), Buy MLM (76 shares), Buy MLM (85 shares), Buy MLM (308 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-02 | MARTIN MARIETTA MATERIALS INC (MLM) | Director | Buy | 69 | $46,683 |
| 2025-12-01 | MARTIN MARIETTA MATERIALS INC (MLM) | Director | Buy | 75 | $46,743 |
| 2025-09-02 | MARTIN MARIETTA MATERIALS INC (MLM) | Director | Buy | 76 | $46,846 |
| 2025-06-03 | MARTIN MARIETTA MATERIALS INC (MLM) | Director | Buy | 85 | $46,542 |
| 2025-05-16 | MARTIN MARIETTA MATERIALS INC (MLM) | Director | Buy | 308 | $170,281 |
| 2025-03-03 | MARTIN MARIETTA MATERIALS INC (MLM) | Director | Buy | 96 | $46,381 |
Source: SEC Form 4 filings · as of 2026-03-02