JUMPER STEPHEN C
Related Filers (3)
Ownership (42)
3
Friday, 12/22/2023
GEOSPACE TECHNOLOGIES CORP: Initial statement of beneficial ownership of securities
4
Thursday, 8/18/2022
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Thursday, 1/20/2022
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Tuesday, 8/17/2021
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Thursday, 3/12/2020
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Tuesday, 2/19/2019
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Friday, 6/1/2018
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Thursday, 12/7/2017
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Friday, 8/11/2017
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Wednesday, 12/7/2016
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Monday, 5/16/2016
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Wednesday, 6/10/2015
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Thursday, 2/12/2015
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Thursday, 2/12/2015
DAWSON OPERATING CO: Statement of changes in beneficial ownership of securities
3
Thursday, 2/12/2015
DAWSON GEOPHYSICAL CO: Initial statement of beneficial ownership of securities
4
Tuesday, 12/9/2014
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Monday, 11/4/2013
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Monday, 6/11/2012
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Tuesday, 8/9/2011
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Wednesday, 7/28/2010
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4/A
Tuesday, 10/20/2009
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Monday, 10/5/2009
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Wednesday, 5/13/2009
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Thursday, 12/4/2008
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Thursday, 11/13/2008
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Friday, 9/19/2008
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Tuesday, 6/3/2008
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4/A
Friday, 10/5/2007
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Wednesday, 8/8/2007
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Tuesday, 3/20/2007
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Friday, 10/6/2006
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Monday, 8/7/2006
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Thursday, 6/1/2006
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Friday, 3/24/2006
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Monday, 11/15/2004
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Thursday, 7/1/2004
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4/A
Monday, 3/1/2004
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4/A
Monday, 3/1/2004
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
5
Monday, 3/1/2004
DAWSON GEOPHYSICAL CO: Annual statement of changes in beneficial ownership of securities
4
Thursday, 2/5/2004
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Wednesday, 2/4/2004
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Monday, 1/6/2003
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities