616 filings
DEFR14A
MACK
Merrimack Pharmaceuticals Inc
1 Apr 24
Revised proxy
4:28pm
DEFA14A
MACK
Merrimack Pharmaceuticals Inc
27 Mar 24
Additional proxy soliciting materials
5:00pm
8-K
MACK
Merrimack Pharmaceuticals Inc
27 Mar 24
Merrimack Receives $225 Million Milestone Payment from Ipsen
4:57pm
DEFA14A
MACK
Merrimack Pharmaceuticals Inc
22 Mar 24
Additional proxy soliciting materials
9:46am
DEF 14A
MACK
Merrimack Pharmaceuticals Inc
Definitive proxy
21 Mar 24
4:52pm
425
MACK
Merrimack Pharmaceuticals Inc
7 Mar 24
Business combination disclosure
4:42pm
8-K
MACK
Merrimack Pharmaceuticals Inc
7 Mar 24
Merrimack Reports Full Year 2023 Financial Results
4:39pm
10-K
2023 FY
MACK
Merrimack Pharmaceuticals Inc
Annual report
7 Mar 24
4:15pm
SC 13G/A
BLK
Blackrock Inc.
7 Mar 24
MERRIMACK PHARMACEUTICALS / BlackRock ownership change
12:29pm
PRE 14A
MACK
Merrimack Pharmaceuticals Inc
Preliminary proxy
5 Mar 24
4:44pm
SC 13G/A
22NW Fund, LP
14 Feb 24
MERRIMACK PHARMACEUTICALS / 22NW Fund ownership change
4:20pm
DEFA14A
MACK
Merrimack Pharmaceuticals Inc
13 Feb 24
Additional proxy soliciting materials
4:26pm
8-K
MACK
Merrimack Pharmaceuticals Inc
13 Feb 24
FDA Approval Triggers $225 Million Milestone Payment from Ipsen to Merrimack
4:22pm
SC 13G
BLK
Blackrock Inc.
31 Jan 24
MERRIMACK PHARMACEUTICALS / BlackRock ownership change
2:08pm
SC 13D/A
MACK
Merrimack Pharmaceuticals Inc
25 Jan 24
MERRIMACK PHARMACEUTICALS / Newtyn Management ownership change
4:05pm
4
Western Standard Partners QP, L.P.
28 Dec 23
MERRIMACK PHARMACEUTICALS / Eric Andersen ownership change
4:05pm
SC 13D/A
Western Standard Corp
13 Dec 23
MERRIMACK PHARMACEUTICALS / Western Standard ownership change
4:05pm
4
Western Standard Partners QP, L.P.
11 Dec 23
MERRIMACK PHARMACEUTICALS / Eric Andersen ownership change
4:05pm
4
Western Standard Partners QP, L.P.
20 Nov 23
MERRIMACK PHARMACEUTICALS / Eric Andersen ownership change
6:59pm