PORTER T WILLIAM
Related Filers (4)
- HELIX ENERGY SOLUTIONS GROUP INC (3)
- Copano Energy, L.L.C. (3)
- US CONCRETE INC (2)
- GUNDLE SLT ENVIRONMENTAL INC (1)
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Ownership (40)
4
Monday, 4/3/2017
HELIX ENERGY SOLUTIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Friday, 12/2/2016
HELIX ENERGY SOLUTIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Monday, 12/7/2015
HELIX ENERGY SOLUTIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Thursday, 12/4/2014
HELIX ENERGY SOLUTIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Thursday, 12/5/2013
HELIX ENERGY SOLUTIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Friday, 5/3/2013
Copano Energy, L.L.C.: Statement of changes in beneficial ownership of securities
4
Tuesday, 3/12/2013
HELIX ENERGY SOLUTIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 3/12/2013
HELIX ENERGY SOLUTIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Thursday, 12/6/2012
HELIX ENERGY SOLUTIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Friday, 11/16/2012
Copano Energy, L.L.C.: Statement of changes in beneficial ownership of securities
4
Monday, 12/12/2011
HELIX ENERGY SOLUTIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Thursday, 11/17/2011
Copano Energy, L.L.C.: Statement of changes in beneficial ownership of securities
4
Friday, 12/10/2010
HELIX ENERGY SOLUTIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Thursday, 11/18/2010
Copano Energy, L.L.C.: Statement of changes in beneficial ownership of securities
4
Tuesday, 12/8/2009
HELIX ENERGY SOLUTIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Thursday, 11/12/2009
Copano Energy, L.L.C.: Statement of changes in beneficial ownership of securities
4
Tuesday, 6/2/2009
US CONCRETE INC: Statement of changes in beneficial ownership of securities
4
Thursday, 5/14/2009
HELIX ENERGY SOLUTIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Thursday, 11/20/2008
Copano Energy, L.L.C.: Statement of changes in beneficial ownership of securities
4
Wednesday, 6/4/2008
US CONCRETE INC: Statement of changes in beneficial ownership of securities
4
Monday, 11/19/2007
Copano Energy, L.L.C.: Statement of changes in beneficial ownership of securities
4
Wednesday, 11/7/2007
HELIX ENERGY SOLUTIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 6/5/2007
US CONCRETE INC: Statement of changes in beneficial ownership of securities
4
Thursday, 5/17/2007
US CONCRETE INC: Statement of changes in beneficial ownership of securities
4
Friday, 3/2/2007
US CONCRETE INC: Statement of changes in beneficial ownership of securities
4
Monday, 11/20/2006
Copano Energy, L.L.C.: Statement of changes in beneficial ownership of securities
4
Monday, 6/5/2006
US CONCRETE INC: Statement of changes in beneficial ownership of securities
4
Thursday, 12/15/2005
Copano Energy, L.L.C.: Statement of changes in beneficial ownership of securities
4
Thursday, 6/23/2005
CAL DIVE INTERNATIONAL INC: Statement of changes in beneficial ownership of securities
4
Friday, 6/3/2005
US CONCRETE INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 12/15/2004
Copano Energy, L.L.C.: Statement of changes in beneficial ownership of securities
3
Monday, 11/22/2004
Copano Energy, L.L.C.: Initial statement of beneficial ownership of securities
4
Monday, 6/21/2004
CAL DIVE INTERNATIONAL INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 6/2/2004
US CONCRETE INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 6/2/2004
GUNDLE SLT ENVIRONMENTAL INC: Statement of changes in beneficial ownership of securities
3
Tuesday, 3/9/2004
CAL DIVE INTERNATIONAL INC: Initial statement of beneficial ownership of securities
4/A
Wednesday, 7/30/2003
US CONCRETE INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 6/3/2003
US CONCRETE INC: Statement of changes in beneficial ownership of securities
5
Friday, 2/14/2003
US CONCRETE INC: Annual statement of changes in beneficial ownership of securities
3
Thursday, 9/20/2001
US CONCRETE INC: Initial statement of beneficial ownership of securities