Jason L Vollmer insider trades
Open-market stock purchases and sales by Jason L Vollmer, CFO at MDU Resources Group Inc, from SEC Form 4 filings since Feb 17, 2015.
Track record: 43% of 7 scored buys are up 5% or more since purchase, averaging +0%.
Companies traded
- MDU MDU Resources Group Inc: 7 buys, last Feb 18, 2026