BROWN STEPHEN L
Related Filers (2)
Ownership (9)
4
Wednesday, 2/23/2005
IONICS INC: Statement of changes in beneficial ownership of securities
4/A
Tuesday, 11/23/2004
IONICS INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 11/17/2004
IONICS INC: Statement of changes in beneficial ownership of securities
4
Friday, 5/7/2004
IONICS INC: Statement of changes in beneficial ownership of securities
4
Friday, 11/21/2003
IONICS INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 11/5/2003
ASPEN TECHNOLOGY INC /DE/: Statement of changes in beneficial ownership of securities
4
Friday, 5/9/2003
IONICS INC: Statement of changes in beneficial ownership of securities
4
Friday, 11/15/2002
IONICS INC: Statement of changes in beneficial ownership of securities
4
Friday, 5/17/2002
IONICS INC: Statement of changes in beneficial ownership of securities