Stumpf John P
Related Filers (1)
Ownership (8)
4
Tuesday, 2/18/2014
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 2/16/2010
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 2/17/2009
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 5/28/2008
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 2/19/2008
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 8/29/2007
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 2/20/2007
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
3
Tuesday, 12/5/2006
MDU RESOURCES GROUP INC: Initial statement of beneficial ownership of securities