Jason L Vollmer insider trades: Mdu Resources Group (MDU) stock purchases
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Jason reports to the SEC
Open-market buys and sales
5 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Sep 8, 2025 | MDU | ↑ Buy | 5,000 | $16.07 | $80K | Direct | Sep 9, 2025 (1d) |
| Aug 19, 2025 | MDU | ↑ Buy | 5,000 | $16.27 | $81K | Direct | Aug 19, 2025 (0d) |
| Nov 11, 2020 | MDU | ↑ Buy | 1,000 | $24.93 | $25K | Direct | Nov 12, 2020 (1d) |
| May 13, 2020 | MDU | ↑ Buy | 1,000 | $19.61 | $20K | Direct | May 14, 2020 (1d) |
| Mar 9, 2020 | MDU | ↑ Buy | 1,200 | $27.31 | $33K | Direct | Mar 10, 2020 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other MDU insiders
Open-market trades in the last 12 months
About Jason L Vollmer's insider trades
Jason L Vollmer is CFO at Mdu Resources Group (MDU). Since Mar 9, 2020, Jason has reported 5 open-market purchases worth $239K and no sales on SEC Form 4. There have been no open-market trades in the last 12 months.
Their filings also include grants and awards (11 filings), shares withheld for taxes (9 filings), other transactions (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every MDU insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.