COHEN MARC A
Related Filers (3)
- OPNET TECHNOLOGIES INC (128)
- C4 Therapeutics, Inc. (11)
- Frequency Therapeutics, Inc. (7)
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Ownership (145)
4
Thursday, 6/23/2022
C4 Therapeutics, Inc.: Statement of changes in beneficial ownership of securities
4
Thursday, 6/23/2022
Frequency Therapeutics, Inc.: Statement of changes in beneficial ownership of securities
4
Tuesday, 1/18/2022
C4 Therapeutics, Inc.: Statement of changes in beneficial ownership of securities
4
Tuesday, 10/5/2021
C4 Therapeutics, Inc.: Statement of changes in beneficial ownership of securities
4
Wednesday, 7/7/2021
C4 Therapeutics, Inc.: Statement of changes in beneficial ownership of securities
4
Monday, 6/21/2021
Frequency Therapeutics, Inc.: Statement of changes in beneficial ownership of securities
4
Thursday, 6/17/2021
C4 Therapeutics, Inc.: Statement of changes in beneficial ownership of securities
4
Monday, 6/14/2021
C4 Therapeutics, Inc.: Statement of changes in beneficial ownership of securities
4
Tuesday, 4/6/2021
C4 Therapeutics, Inc.: Statement of changes in beneficial ownership of securities
4
Friday, 2/19/2021
C4 Therapeutics, Inc.: Statement of changes in beneficial ownership of securities
4
Tuesday, 10/6/2020
C4 Therapeutics, Inc.: Statement of changes in beneficial ownership of securities
4
Monday, 10/5/2020
C4 Therapeutics, Inc.: Statement of changes in beneficial ownership of securities
3
Thursday, 10/1/2020
C4 Therapeutics, Inc.: Initial statement of beneficial ownership of securities
4
Friday, 6/12/2020
Frequency Therapeutics, Inc.: Statement of changes in beneficial ownership of securities
4
Monday, 2/3/2020
Frequency Therapeutics, Inc.: Statement of changes in beneficial ownership of securities
4
Thursday, 12/5/2019
Frequency Therapeutics, Inc.: Statement of changes in beneficial ownership of securities
4
Tuesday, 10/8/2019
Frequency Therapeutics, Inc.: Statement of changes in beneficial ownership of securities
3
Wednesday, 10/2/2019
Frequency Therapeutics, Inc.: Initial statement of beneficial ownership of securities
SC 13G/A
Friday, 12/28/2012
OPNET TECHNOLOGIES INC: Major Shareholders
4
Thursday, 12/20/2012
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Thursday, 11/15/2012
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Friday, 6/15/2012
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
SC 13G/A
Monday, 2/13/2012
OPNET TECHNOLOGIES INC: Major Shareholders
4
Monday, 2/13/2012
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Friday, 2/10/2012
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 2/7/2012
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Monday, 8/8/2011
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Monday, 7/25/2011
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 6/1/2011
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Monday, 3/14/2011
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Thursday, 2/24/2011
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
SC 13G/A
Thursday, 2/10/2011
OPNET TECHNOLOGIES INC: Major Shareholders
4
Tuesday, 11/9/2010
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 10/26/2010
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 8/10/2010
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Thursday, 7/29/2010
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 6/16/2010
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 6/15/2010
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Friday, 6/11/2010
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 6/9/2010
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Monday, 6/7/2010
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Friday, 6/4/2010
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Thursday, 6/3/2010
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Friday, 5/14/2010
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Thursday, 4/29/2010
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 2/24/2010
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
SC 13G/A
Friday, 2/12/2010
OPNET TECHNOLOGIES INC: Major Shareholders
4
Wednesday, 2/10/2010
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 2/9/2010
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 10/28/2009
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 7/29/2009
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 6/3/2009
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 4/29/2009
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Monday, 2/9/2009
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
SC 13G/A
Thursday, 2/5/2009
OPNET TECHNOLOGIES INC: Major Shareholders
4
Monday, 8/11/2008
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
SC 13G/A
Monday, 2/11/2008
OPNET TECHNOLOGIES INC: Major Shareholders
4
Friday, 2/8/2008
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Friday, 11/23/2007
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 11/21/2007
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 11/20/2007
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Monday, 11/19/2007
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Friday, 11/16/2007
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Thursday, 11/15/2007
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 11/14/2007
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Monday, 6/4/2007
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Monday, 2/26/2007
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
SC 13G/A
Wednesday, 2/14/2007
OPNET TECHNOLOGIES INC: Major Shareholders
4
Tuesday, 11/7/2006
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Monday, 8/7/2006
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 6/20/2006
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 5/24/2006
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4/A
Friday, 2/17/2006
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
SC 13G/A
Tuesday, 2/14/2006
OPNET TECHNOLOGIES INC: Major Shareholders
4
Wednesday, 2/8/2006
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
SC 13G
Monday, 2/14/2005
OPNET TECHNOLOGIES INC: Major Shareholders
4
Wednesday, 5/5/2004
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 3/2/2004
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Friday, 2/27/2004
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 2/25/2004
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Friday, 2/20/2004
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
SC 13G/A
Tuesday, 2/17/2004
OPNET TECHNOLOGIES INC: Major Shareholders
4
Friday, 2/13/2004
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 2/11/2004
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Friday, 2/6/2004
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Thursday, 2/5/2004
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Monday, 1/12/2004
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 1/7/2004
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Monday, 1/5/2004
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4/A
Thursday, 11/20/2003
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Friday, 11/14/2003
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Friday, 11/14/2003
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Thursday, 11/13/2003
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 11/12/2003
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Monday, 11/10/2003
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Friday, 11/7/2003
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Thursday, 11/6/2003
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 11/5/2003
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 11/4/2003
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities
4
Monday, 11/3/2003
OPNET TECHNOLOGIES INC: Statement of changes in beneficial ownership of securities