MERRIMACK PHARMACEUTICALS INC reports

Company Names, identifiers, and filing context for this profile. 1 identity field
Company location
Cambridge, MA
SEC filing record 1 source field available
Fiscal year end
31 December
MERRIMACK PHARMACEUTICALS INC has filed 807 SEC EDGAR filings since 29 Dec 2003

SEC filing history

Showing 1-25 of 802 matching filings.

Per page
25
Current page
1
15-12G File 001-35409

15-12G

Filing date
20 May 2024
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
25 File 001-35409

FORM 25

Filing date
10 May 2024
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
DEFA14A File 001-35409

DEFA14A

Filing date
09 May 2024
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
DEFA14A File 001-35409

DEFA14A

Filing date
30 Apr 2024
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
DEFR14A File 001-35409

DEFR14A

Filing date
01 Apr 2024
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
DEFA14A File 001-35409

DEFA14A

Filing date
27 Mar 2024
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
DEFA14A File 001-35409

DEFA14A

Filing date
22 Mar 2024
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
DEF 14A File 001-35409

DEF 14A

Filing date
21 Mar 2024
Reporting date
10 May 2024
SEC evidence
Open document Open filing
Next action
Verify source filing
425 File 001-35409

425

Filing date
07 Mar 2024
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
SC 13G/A File 005-86778

SC 13G/A filing

Filing date
07 Mar 2024
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
PRE 14A File 001-35409

PRE 14A

Filing date
05 Mar 2024
Reporting date
05 Mar 2024
SEC evidence
Open document Open filing
Next action
Verify source filing
SCHEDULE 13G File 005-86778

SCHEDULE 13G filing

Filing date
22 Feb 2024
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
SC 13G/A File 005-86778

AMENDMENT NO. 4 TO THE SCHEDULE 13G

Filing date
14 Feb 2024
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
DEFA14A File 001-35409

DEFA14A

Filing date
13 Feb 2024
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
SC 13G File 005-86778

SC 13G filing

Filing date
31 Jan 2024
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
SC 13D/A File 005-86778

SC 13D/A filing

Filing date
25 Jan 2024
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .