HELLERSTEIN MARK A
Related Filers (3)
Ownership (64)
4
Wednesday, 11/18/2020
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 11/20/2019
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Monday, 12/31/2018
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 11/21/2018
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Friday, 9/28/2018
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Friday, 6/29/2018
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Friday, 3/30/2018
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 1/3/2018
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 11/22/2017
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Monday, 10/2/2017
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Friday, 6/30/2017
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Friday, 3/31/2017
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 1/3/2017
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 11/22/2016
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Friday, 9/30/2016
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Thursday, 6/30/2016
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Thursday, 3/31/2016
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Monday, 1/4/2016
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Thursday, 11/19/2015
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/30/2015
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 7/1/2015
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 4/1/2015
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 12/31/2014
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Thursday, 11/20/2014
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 10/1/2014
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Monday, 6/30/2014
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Monday, 3/31/2014
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
4
Thursday, 11/21/2013
MDU RESOURCES GROUP INC: Statement of changes in beneficial ownership of securities
3
Friday, 8/9/2013
MDU RESOURCES GROUP INC: Initial statement of beneficial ownership of securities
4
Tuesday, 12/16/2008
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
4/A
Thursday, 5/29/2008
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
4
Tuesday, 5/27/2008
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
4
Thursday, 5/22/2008
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
4/A
Wednesday, 4/2/2008
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
4
Wednesday, 3/19/2008
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
4
Monday, 3/3/2008
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
4
Thursday, 11/29/2007
TRANSOCEAN INC: Statement of changes in beneficial ownership of securities
4
Thursday, 7/5/2007
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
4
Tuesday, 6/26/2007
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
4
Tuesday, 5/15/2007
TRANSOCEAN INC: Statement of changes in beneficial ownership of securities
4
Thursday, 3/1/2007
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
3/A
Friday, 1/12/2007
TRANSOCEAN INC: Initial statement of beneficial ownership of securities
3
Monday, 12/11/2006
TRANSOCEAN INC: Initial statement of beneficial ownership of securities
4
Monday, 12/11/2006
TRANSOCEAN INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 7/19/2006
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
4
Friday, 6/2/2006
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
4
Tuesday, 5/30/2006
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
4/A
Thursday, 5/18/2006
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
4
Thursday, 5/18/2006
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
4/A
Tuesday, 5/16/2006
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
4
Tuesday, 5/16/2006
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
4
Friday, 5/12/2006
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
4
Wednesday, 3/1/2006
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
5
Tuesday, 1/17/2006
ST MARY LAND & EXPLORATION CO: Annual statement of changes in beneficial ownership of securities
4
Thursday, 3/24/2005
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
4
Thursday, 3/17/2005
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
4/A
Thursday, 3/17/2005
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
5
Monday, 2/14/2005
ST MARY LAND & EXPLORATION CO: Annual statement of changes in beneficial ownership of securities
4
Wednesday, 6/30/2004
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
5
Friday, 2/13/2004
ST MARY LAND & EXPLORATION CO: Annual statement of changes in beneficial ownership of securities
4
Monday, 1/5/2004
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
4
Friday, 10/24/2003
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
4
Tuesday, 8/19/2003
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities
4
Tuesday, 7/1/2003
ST MARY LAND & EXPLORATION CO: Statement of changes in beneficial ownership of securities