Del Vecchio Mark A
Related Filers (1)
Ownership (6)
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
3/A
Thursday, 12/11/2008
MDU RESOURCES GROUP INC: Initial statement of beneficial ownership of securities
4
Tuesday, 2/19/2008
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
3
Thursday, 10/4/2007
MDU RESOURCES GROUP INC: Initial statement of beneficial ownership of securities