Johnson Rob L. (CIK 1979103) reported 2 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-02-19). Recent activity: Buy MDU (5,830 shares), Sell MDU (10,630 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-02-19 | MDU RESOURCES GROUP INC (MDU) | President-WBI | Buy | 5,830 | $0 |
| 2026-02-19 | MDU RESOURCES GROUP INC (MDU) | President-WBI | Sell | 10,630 | $216,427 |
来源：SEC Form 4 申报文件 · 截至 2026-02-19