Insider Activity of Stumpf John P
Biography of Stumpf John P
No biography is available at this moment.
No biography is available at this moment.
| 2008-05-23 | Sale | MDU Resources Group, Inc. MDU | VP - Strategic Planning | 10,884 0.006% | $31.62 | $344,113 | -35.07% | |
| 2007-08-28 | MDU Resources Group, Inc. MDU | VP - Strategic Planning | 375.8 0.0002% | $26.61 | $10,000 | +7.54% |