Dale Rosenthal, Director at MDU RESOURCES GROUP INC (MDU), bought 375 shares at $22.55 ($8K) on 2024-03-12, disclosed to the SEC on 2024-03-13.
Open-market purchase of $8k MDU by Director. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history).
Nothing distinguishes this filing.