Vollmer Jason L (CIK 1626019) reported 4 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-02-19). Recent activity: Buy MDU (15,229 shares), Sell MDU (36,766 shares), Buy MDU (5,000 shares), Buy MDU (5,000 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-02-19 | MDU RESOURCES GROUP INC (MDU) | CFO | Buy | 15,229 | $0 |
| 2026-02-19 | MDU RESOURCES GROUP INC (MDU) | CFO | Sell | 36,766 | $748,556 |
| 2025-09-09 | MDU RESOURCES GROUP INC (MDU) | CFO | Buy | 5,000 | $80,400 |
| 2025-08-19 | MDU RESOURCES GROUP INC (MDU) | CFO | Buy | 5,000 | $81,400 |
Source: SEC Form 4 filings · as of 2026-02-19