Jason L. Vollmer, CFO of MDU Resources Group Inc. ($MDU), made two open market purchases totaling $161,750 in the last year, with the most recent on September 8, 2025. This ranks him 1,737th among 4,983 insiders by purchase value, below the average of $1.5 million across 3.29 transactions per insider. He reported no open market sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb. 18, 2026 | MDU RESOURCES GROUP INC | $MDU | Vollmer Jason L | CFO | F | Common Stock | 36766 | $20.36 | 324,976.3970 | 205,300,000 | 10.16% | 0.02% |
| Feb. 17, 2026 | MDU RESOURCES GROUP INC | $MDU | Vollmer Jason L | CFO | A | Common Stock | 15229 | $0.00 | 361,742.3970 | 205,300,000 | 4.39% | 0.01% |
| Sept. 8, 2025 | MDU RESOURCES GROUP INC | $MDU | Vollmer Jason L | CFO | P | Common Stock | 5000 | $16.08 | 344,548.1970 | 204,653,000 | 1.47% | 0.00% |
| Aug. 19, 2025 | MDU RESOURCES GROUP INC | $MDU | Vollmer Jason L | CFO | P | Common Stock | 5000 | $16.28 | 339,548.1970 | 204,653,000 | 1.49% | 0.00% |
| Feb. 12, 2025 | MDU RESOURCES GROUP INC | $MDU | Vollmer Jason L | CFO | A | Common Stock | 16700 | $0.00 | 363,118.3270 | 204,653,000 | 4.82% | 0.01% |
| Feb. 12, 2025 | MDU RESOURCES GROUP INC | $MDU | Vollmer Jason L | CFO | F | Common Stock | 30429 | $16.83 | 332,689.3270 | 204,653,000 | 8.38% | 0.01% |
| Feb. 15, 2024 | MDU RESOURCES GROUP INC | $MDU | Vollmer Jason L | VP & CFO | F | Common Stock | 12067 | $20.85 | 215,614.2110 | 203,938,000 | 5.30% | 0.01% |
| Feb. 15, 2024 | MDU RESOURCES GROUP INC | $MDU | Vollmer Jason L | VP & CFO | A | Common Stock | 56459 | $0.00 | 227,681.2110 | 203,938,000 | 32.97% | 0.03% |
| May 31, 2023 | MDU RESOURCES GROUP INC | $MDU | Vollmer Jason L | VP & CFO | A | Common Stock | 13771 | $0.00 | 132,260.9650 | 203,462,000 | 11.62% | 0.01% |
| May 31, 2023 | MDU RESOURCES GROUP INC | $MDU | Vollmer Jason L | VP & CFO | A | Common Stock | 19064 | $0.00 | 118,489.9650 | 203,462,000 | 19.17% | 0.01% |
| Feb. 16, 2023 | MDU RESOURCES GROUP INC | $MDU | Vollmer Jason L | VP & CFO | A | Common Stock | 31574 | $0.00 | 88,937.3100 | 203,462,000 | 55.04% | 0.02% |
| Feb. 16, 2023 | MDU RESOURCES GROUP INC | $MDU | Vollmer Jason L | VP & CFO | A | Common Stock | 16581 | $31.16 | 105,518.3100 | 203,462,000 | 18.64% | 0.01% |
| Feb. 16, 2023 | MDU RESOURCES GROUP INC | $MDU | Vollmer Jason L | VP & CFO | F | Common Stock | 6486 | $31.16 | 99,032.3100 | 203,462,000 | 6.15% | 0.00% |