Gray Brian R. (CIK 1966900) reported 4 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-03-09). Recent activity: Buy KNF (20,955 shares), Sell KNF (10,072 shares), Sell KNF (19,572 shares), Buy KNF (12,599 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-09 | Knife River Corp (KNF) | President & CEO | Buy | 20,955 | $0 |
| 2026-02-17 | Knife River Corp (KNF) | President & CEO | Sell | 10,072 | $823,285 |
| 2026-02-17 | Knife River Corp (KNF) | President & CEO | Sell | 19,572 | $1.6M |
| 2025-03-03 | Knife River Corp (KNF) | President & CEO | Buy | 12,599 | $0 |
Source: SEC Form 4 filings · as of 2026-03-09