Williams Thomas D
Related Filers (1)
Ownership (23)
4
Thursday, 11/5/2009
PEROT SYSTEMS CORP: Statement of changes in beneficial ownership of securities
4
Friday, 10/16/2009
PEROT SYSTEMS CORP: Statement of changes in beneficial ownership of securities
4
Thursday, 9/24/2009
PEROT SYSTEMS CORP: Statement of changes in beneficial ownership of securities
4
Tuesday, 8/4/2009
PEROT SYSTEMS CORP: Statement of changes in beneficial ownership of securities
4
Tuesday, 3/17/2009
PEROT SYSTEMS CORP: Statement of changes in beneficial ownership of securities
4
Tuesday, 11/4/2008
PEROT SYSTEMS CORP: Statement of changes in beneficial ownership of securities
4
Wednesday, 10/15/2008
PEROT SYSTEMS CORP: Statement of changes in beneficial ownership of securities
4
Tuesday, 9/23/2008
PEROT SYSTEMS CORP: Statement of changes in beneficial ownership of securities
4
Tuesday, 8/5/2008
PEROT SYSTEMS CORP: Statement of changes in beneficial ownership of securities
4
Tuesday, 3/18/2008
PEROT SYSTEMS CORP: Statement of changes in beneficial ownership of securities
4
Tuesday, 11/6/2007
PEROT SYSTEMS CORP: Statement of changes in beneficial ownership of securities
4/A
Friday, 11/2/2007
PEROT SYSTEMS CORP: Statement of changes in beneficial ownership of securities
4/A
Friday, 11/2/2007
PEROT SYSTEMS CORP: Statement of changes in beneficial ownership of securities
4
Tuesday, 10/23/2007
PEROT SYSTEMS CORP: Statement of changes in beneficial ownership of securities
4
Tuesday, 10/2/2007
PEROT SYSTEMS CORP: Statement of changes in beneficial ownership of securities
4
Monday, 8/6/2007
PEROT SYSTEMS CORP: Statement of changes in beneficial ownership of securities
4
Monday, 11/6/2006
PEROT SYSTEMS CORP: Statement of changes in beneficial ownership of securities
4
Tuesday, 10/17/2006
PEROT SYSTEMS CORP: Statement of changes in beneficial ownership of securities
4
Wednesday, 10/11/2006
PEROT SYSTEMS CORP: Statement of changes in beneficial ownership of securities
4
Wednesday, 2/22/2006
PEROT SYSTEMS CORP: Statement of changes in beneficial ownership of securities
3/A
Wednesday, 2/22/2006
PEROT SYSTEMS CORP: Initial statement of beneficial ownership of securities
4
Friday, 10/14/2005
PEROT SYSTEMS CORP: Statement of changes in beneficial ownership of securities
3
Friday, 10/1/2004
PEROT SYSTEMS CORP: Initial statement of beneficial ownership of securities