Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>

Common stock purchase or sale:
Transaction Date |
Reported DateTime |
Company | Symbol | Insider Relationship |
Shares Traded |
Average Price |
Total Amount |
Shares Owned |
Filing |
2020-11-11 Purchase |
2020-11-12 3:03 pm |
MDU RESOURCES GROUP INC | MDU | Vollmer Jason L VP, CFO & Treasurer |
1,000 | $24.93 | $24,925 | 16,604 (Indirect Direct) |
View |
2020-05-13 Purchase |
2020-05-14 11:25 am |
MDU RESOURCES GROUP INC | MDU | Vollmer Jason L VP, CFO & Treasurer |
1,000 | $19.61 | $19,615 | 15,151 (Indirect Direct) |
View |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date |
Reported DateTime |
Exercisable Expiration |
Company | Symnbol | Insider Relationship |
Shares Traded |
Conversion Price |
Shares Owned |
Filing |
2025-02-12 Tax Withholding |
2025-02-14 4:50 pm |
N/A N/A |
MDU RESOURCES GROUP INC | MDU | Vollmer Jason L CFO |
30,429 | $16.83 | 340,814 (Direct) |
View |
2025-02-12 Option Award |
2025-02-14 4:50 pm |
N/A N/A |
MDU RESOURCES GROUP INC | MDU | Vollmer Jason L CFO |
16,700 | $0 | 340,814 (Direct) |
View |
2024-02-15 Tax Withholding |
2024-02-16 5:20 pm |
N/A N/A |
MDU RESOURCES GROUP INC | MDU | Vollmer Jason L VP & CFO |
12,067 | $20.85 | 223,238 (Direct) |
View |
2024-02-15 Option Award |
2024-02-16 5:20 pm |
N/A N/A |
MDU RESOURCES GROUP INC | MDU | Vollmer Jason L VP & CFO |
56,459 | $0 | 223,238 (Direct) |
View |
2023-05-31 Option Award |
2023-06-01 1:19 pm |
N/A N/A |
MDU RESOURCES GROUP INC | MDU | Vollmer Jason L VP & CFO |
32,835 | $0 | 139,576 (Direct) |
View |
2023-02-16 Tax Withholding |
2023-02-21 4:45 pm |
N/A N/A |
MDU RESOURCES GROUP INC | MDU | Vollmer Jason L VP & CFO |
6,486 | $31.16 | 105,978 (Direct) |
View |
2023-02-16 Option Award |
2023-02-21 4:45 pm |
N/A N/A |
MDU RESOURCES GROUP INC | MDU | Vollmer Jason L VP & CFO |
16,581 | $31.16 | 105,978 (Direct) |
View |
2023-02-16 Option Award |
2023-02-21 4:45 pm |
N/A N/A |
MDU RESOURCES GROUP INC | MDU | Vollmer Jason L VP & CFO |
31,574 | $0 | 105,978 (Direct) |
View |
2021-02-11 Option Award |
2022-02-28 4:49 pm |
N/A N/A |
MDU RESOURCES GROUP INC | MDU | Vollmer Jason L VP & CFO |
13,707 | $0 | 62,303 (Direct) |
View |
2022-02-17 Option Award |
2022-02-22 5:17 pm |
N/A N/A |
MDU RESOURCES GROUP INC | MDU | Vollmer Jason L VP & CFO |
26,795 | $27.73 | 48,596 (Direct) |
View |
2022-02-17 Tax Withholding |
2022-02-22 5:17 pm |
N/A N/A |
MDU RESOURCES GROUP INC | MDU | Vollmer Jason L VP & CFO |
10,652 | $27.73 | 48,596 (Direct) |
View |
2021-02-11 Tax Withholding |
2021-02-16 5:48 pm |
N/A N/A |
MDU RESOURCES GROUP INC | MDU | Vollmer Jason L VP & CFO |
9,551 | $27.35 | 31,175 (Direct) |
View |
2021-02-11 Option Award |
2021-02-16 5:48 pm |
N/A N/A |
MDU RESOURCES GROUP INC | MDU | Vollmer Jason L VP & CFO |
23,980 | $27.35 | 31,175 (Direct) |
View |