Chasen Michael L
Related Filers (1)
Ownership (54)
4
Thursday, 10/6/2011
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Thursday, 2/17/2011
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 1/5/2011
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Thursday, 3/25/2010
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 3/16/2010
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 2/17/2010
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 1/27/2010
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 1/20/2010
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 1/6/2010
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Friday, 10/16/2009
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 10/14/2009
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Friday, 10/2/2009
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Monday, 8/10/2009
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 8/4/2009
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Friday, 7/24/2009
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Thursday, 2/19/2009
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Friday, 10/3/2008
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 9/23/2008
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 8/20/2008
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 2/20/2008
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 7/3/2007
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 7/3/2007
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 7/3/2007
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Monday, 5/21/2007
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Thursday, 5/10/2007
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Friday, 5/4/2007
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 4/4/2007
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Friday, 3/23/2007
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 2/20/2007
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Friday, 1/5/2007
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Friday, 12/29/2006
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 10/4/2006
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 10/4/2006
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Friday, 8/11/2006
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Thursday, 7/6/2006
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Thursday, 5/11/2006
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 4/5/2006
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Friday, 3/17/2006
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 1/10/2006
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 1/10/2006
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 1/10/2006
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Friday, 1/6/2006
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Friday, 1/6/2006
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Friday, 1/6/2006
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4/A
Tuesday, 10/25/2005
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 10/5/2005
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Thursday, 7/14/2005
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 7/6/2005
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Friday, 6/3/2005
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 4/13/2005
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Thursday, 3/3/2005
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Thursday, 6/24/2004
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
4
Friday, 6/18/2004
BLACKBOARD INC: Statement of changes in beneficial ownership of securities
3
Thursday, 6/17/2004
BLACKBOARD INC: Initial statement of beneficial ownership of securities