Ferguson Robert L
Related Filers (2)
Ownership (27)
4
Friday, 9/14/2012
PERMA FIX ENVIRONMENTAL SERVICES INC: Statement of changes in beneficial ownership of securities
4
Monday, 7/2/2012
PERMA FIX ENVIRONMENTAL SERVICES INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 4/3/2012
PERMA FIX ENVIRONMENTAL SERVICES INC: Statement of changes in beneficial ownership of securities
4
Thursday, 1/5/2012
PERMA FIX ENVIRONMENTAL SERVICES INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 12/20/2011
PERMA FIX ENVIRONMENTAL SERVICES INC: Statement of changes in beneficial ownership of securities
4
Monday, 10/3/2011
PERMA FIX ENVIRONMENTAL SERVICES INC: Statement of changes in beneficial ownership of securities
3
Wednesday, 8/24/2011
PERMA FIX ENVIRONMENTAL SERVICES INC: Initial statement of beneficial ownership of securities
4
Friday, 4/2/2010
PERMA FIX ENVIRONMENTAL SERVICES INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 1/5/2010
PERMA FIX ENVIRONMENTAL SERVICES INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 12/23/2009
PERMA FIX ENVIRONMENTAL SERVICES INC: Statement of changes in beneficial ownership of securities
4
Friday, 10/2/2009
PERMA FIX ENVIRONMENTAL SERVICES INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 7/29/2009
PERMA FIX ENVIRONMENTAL SERVICES INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 7/1/2009
PERMA FIX ENVIRONMENTAL SERVICES INC: Statement of changes in beneficial ownership of securities
4
Thursday, 4/2/2009
PERMA FIX ENVIRONMENTAL SERVICES INC: Statement of changes in beneficial ownership of securities
4/A
Monday, 2/9/2009
PERMA FIX ENVIRONMENTAL SERVICES INC: Statement of changes in beneficial ownership of securities
4/A
Tuesday, 2/3/2009
PERMA FIX ENVIRONMENTAL SERVICES INC: Statement of changes in beneficial ownership of securities
4
Friday, 1/16/2009
Vivid Learning Systems, Inc.: Statement of changes in beneficial ownership of securities
4
Tuesday, 1/6/2009
PERMA FIX ENVIRONMENTAL SERVICES INC: Statement of changes in beneficial ownership of securities
4
Thursday, 12/11/2008
Vivid Learning Systems, Inc.: Statement of changes in beneficial ownership of securities
4
Friday, 12/5/2008
PERMA FIX ENVIRONMENTAL SERVICES INC: Statement of changes in beneficial ownership of securities
5
Monday, 10/20/2008
Vivid Learning Systems, Inc.: Annual statement of changes in beneficial ownership of securities
4
Thursday, 10/2/2008
PERMA FIX ENVIRONMENTAL SERVICES INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 8/6/2008
PERMA FIX ENVIRONMENTAL SERVICES INC: Statement of changes in beneficial ownership of securities
SC 13D
Friday, 8/31/2007
Vivid Learning Systems, Inc.: Major Shareholders
4
Tuesday, 8/14/2007
Vivid Learning Systems, Inc.: Statement of changes in beneficial ownership of securities
3
Wednesday, 8/8/2007
Vivid Learning Systems, Inc.: Initial statement of beneficial ownership of securities
3
Thursday, 8/2/2007
PERMA FIX ENVIRONMENTAL SERVICES INC: Initial statement of beneficial ownership of securities