NASDAQ:MACK - Merrimack Pharmaceuticals SEC Filings & 10K Form

$5.61
+0.03 (+0.54 %)
(As of 06/25/2019 01:59 PM ET)
Today's Range
$5.58
Now: $5.61
$5.66
50-Day Range
$5.52
MA: $5.89
$6.25
52-Week Range
$3.34
Now: $5.61
$7.50
Volume19,078 shs
Average Volume59,110 shs
Market Capitalization$74.84 million
P/E RatioN/A
Dividend YieldN/A
Beta2.28

SEC Filings

Merrimack Pharmaceuticals (NASDAQ:MACK) SEC Filings

DateFilerForm TypeView
06/24/2019
3:26 PM
Merrimack Pharmaceuticals (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
View Filing
05/30/2019
3:16 PM
Merrimack Pharmaceuticals (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
View Filing
05/13/2019
3:00 PM
Merrimack Pharmaceuticals (Subject)
Newtyn Management, LLC (Filed by)
Form SC 13G/A
View Filing
05/10/2019
7:31 AM
Merrimack Pharmaceuticals (Filer)
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
View Filing
05/10/2019
6:45 AM
Merrimack Pharmaceuticals (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
View Filing
05/10/2019
6:39 AM
Merrimack Pharmaceuticals (Issuer)
Peters Richard (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
View Filing
04/30/2019
3:15 PM
Merrimack Pharmaceuticals (Filer)
Form 10-K/A
View Filing
04/30/2019
6:34 AM
Merrimack Pharmaceuticals (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
View Filing
04/17/2019
7:15 PM
22NW Fund GP, LLC (Reporting)
22NW Fund, LP (Reporting)
22NW, LP (Reporting)
English Aron R. (Reporting)
Merrimack Pharmaceuticals (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
View Filing
04/17/2019
4:17 PM
JFL Capital Management, LLC (Filed by)
Merrimack Pharmaceuticals (Subject)
Form SC 13D/A
View Filing
04/16/2019
3:15 PM
Merrimack Pharmaceuticals (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
View Filing
04/09/2019
5:39 PM
22NW Fund GP, LLC (Reporting)
22NW Fund, LP (Reporting)
22NW, LP (Reporting)
English Aron R. (Reporting)
Merrimack Pharmaceuticals (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
View Filing
04/09/2019
5:30 PM
JFL Capital Holdings LLC (Reporting)
JFL Capital Management LP (Reporting)
JFL Capital Management, LLC (Reporting)
JFL Partners Fund LP (Reporting)
Lawler Joseph F. (Reporting)
Merrimack Pharmaceuticals (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
View Filing
03/20/2019
6:46 PM
Lin Kenneth (Reporting)
Merrimack Pharmaceuticals (Issuer)
Form 3
Initial statement of beneficial ownership of securities  
View Filing
03/20/2019
6:44 PM
Aryeh Jason (Reporting)
Merrimack Pharmaceuticals (Issuer)
Form 3
Initial statement of beneficial ownership of securities  
View Filing
03/20/2019
6:41 PM
22NW Fund GP, LLC (Reporting)
22NW Fund, LP (Reporting)
22NW, LP (Reporting)
English Aron R. (Reporting)
Merrimack Pharmaceuticals (Issuer)
Form 3
Initial statement of beneficial ownership of securities  
View Filing
03/20/2019
6:38 PM
JFL Capital Holdings LLC (Reporting)
JFL Capital Management LP (Reporting)
JFL Capital Management, LLC (Reporting)
JFL Partners Fund LP (Reporting)
Lawler Joseph F. (Reporting)
Merrimack Pharmaceuticals (Issuer)
Form 3
Initial statement of beneficial ownership of securities  
View Filing
03/14/2019
8:00 AM
JFL Capital Management, LLC (Filed by)
Merrimack Pharmaceuticals (Subject)
Form SC 13D/A
View Filing
03/06/2019
6:46 AM
Merrimack Pharmaceuticals (Filer)
Form S-8
Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans  
View Filing
03/06/2019
6:32 AM
Merrimack Pharmaceuticals (Filer)
Form 10-K
Annual report pursuant to Section 13 or 15(d)  
View Filing
03/06/2019
6:14 AM
Merrimack Pharmaceuticals (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
View Filing
02/14/2019
3:37 PM
BIOTECHNOLOGY VALUE FUND L P (Filed by)
Merrimack Pharmaceuticals (Subject)
Form SC 13G/A
View Filing
02/08/2019
3:01 PM
22NW, LP (Filed by)
Merrimack Pharmaceuticals (Subject)
Form SC 13G
View Filing
12/19/2018
3:10 PM
JFL Capital Management, LLC (Filed by)
Merrimack Pharmaceuticals (Subject)
Form SC 13D/A
View Filing
12/13/2018
3:20 PM
Merrimack Pharmaceuticals (Issuer)
Santillana Sergio L. (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
View Filing
12/13/2018
3:18 PM
Merrimack Pharmaceuticals (Issuer)
Peters Richard (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
View Filing
12/13/2018
3:17 PM
Merrimack Pharmaceuticals (Issuer)
Munsie Jeffrey A (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
View Filing
12/13/2018
3:16 PM
Franchi Jean M. (Reporting)
Merrimack Pharmaceuticals (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
View Filing
12/13/2018
3:15 PM
Drummond Daryl C (Reporting)
Merrimack Pharmaceuticals (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
View Filing
11/07/2018
8:01 AM
Merrimack Pharmaceuticals (Filer)
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
View Filing
11/07/2018
6:19 AM
Merrimack Pharmaceuticals (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
View Filing
11/02/2018
4:15 PM
JFL Capital Management, LLC (Filed by)
Merrimack Pharmaceuticals (Subject)
Form SC 13D
View Filing
08/07/2018
7:01 AM
Merrimack Pharmaceuticals (Filer)
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
View Filing
08/07/2018
6:13 AM
Merrimack Pharmaceuticals (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
View Filing
07/10/2018
7:26 AM
BlackRock Inc. (Filed by)
Merrimack Pharmaceuticals (Subject)
Form SC 13G/A
View Filing
07/03/2018
7:33 AM
Merrimack Pharmaceuticals (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
View Filing
06/15/2018
3:34 PM
Merrimack Pharmaceuticals (Issuer)
RAY RUSSELL T (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
View Filing
06/15/2018
3:34 PM
Merrimack Pharmaceuticals (Issuer)
Quigley James H. (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
View Filing
06/15/2018
3:33 PM
Merrimack Pharmaceuticals (Issuer)
Nielsen Ulrik B. (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
View Filing
06/15/2018
3:32 PM
Dineen John M. (Reporting)
Merrimack Pharmaceuticals (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
View Filing
06/15/2018
3:32 PM
Demetri George (Reporting)
Merrimack Pharmaceuticals (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
View Filing
06/15/2018
3:31 PM
CROCKER GARY L (Reporting)
Merrimack Pharmaceuticals (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
View Filing
06/15/2018
3:15 PM
Merrimack Pharmaceuticals (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
View Filing
05/10/2018
9:50 AM
FMR LLC (Filed by)
Merrimack Pharmaceuticals (Subject)
Form SC 13G/A
View Filing
05/08/2018
9:40 AM
Merrimack Pharmaceuticals (Filer)
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
View Filing
05/08/2018
6:38 AM
Merrimack Pharmaceuticals (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
View Filing
04/27/2018
11:09 AM
Merrimack Pharmaceuticals (Filer)
Form DEFA14A
View Filing
04/27/2018
11:03 AM
Merrimack Pharmaceuticals (Filer)
Form DEF 14A
View Filing
04/13/2018
3:11 PM
Merrimack Pharmaceuticals (Filer)
Form PRE 14A
View Filing
04/10/2018
4:19 PM
BIOTECHNOLOGY VALUE FUND L P (Filed by)
Merrimack Pharmaceuticals (Subject)
Form SC 13G
View Filing
03/29/2018
4:04 PM
Merrimack Pharmaceuticals (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
View Filing
03/12/2018
10:37 AM
Merrimack Pharmaceuticals (Filer)
Form S-8
Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans  
View Filing
03/12/2018
10:21 AM
Merrimack Pharmaceuticals (Filer)
Form 10-K
Annual report pursuant to Section 13 or 15(d)  
View Filing
03/12/2018
6:13 AM
Merrimack Pharmaceuticals (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
View Filing
02/16/2018
4:00 PM
Merrimack Pharmaceuticals (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
View Filing
02/16/2018
3:13 PM
Merrimack Pharmaceuticals (Issuer)
Santillana Sergio L. (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
View Filing
02/16/2018
3:08 PM
Franchi Jean M. (Reporting)
Merrimack Pharmaceuticals (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
View Filing
02/16/2018
3:07 PM
Drummond Daryl C (Reporting)
Merrimack Pharmaceuticals (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
View Filing
02/14/2018
3:58 PM
Consonance Capital Management LP (Filed by)
Merrimack Pharmaceuticals (Subject)
Form SC 13G/A
View Filing
01/07/2018
11:15 PM
Merrimack Pharmaceuticals (Filer)
Form EFFECT
View Filing
12/15/2017
3:46 PM
Demetri George (Reporting)
Merrimack Pharmaceuticals (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
View Filing
12/15/2017
3:22 PM
Merrimack Pharmaceuticals (Filer)
Form S-3
Registration statement under Securities Act of 1933  
View Filing
12/15/2017
3:06 PM
Merrimack Pharmaceuticals (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
View Filing
12/01/2017
3:10 PM
Demetri George (Reporting)
Merrimack Pharmaceuticals (Issuer)
Form 3
Initial statement of beneficial ownership of securities  
View Filing
11/30/2017
6:44 AM
Merrimack Pharmaceuticals (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
View Filing
This page was last updated on 6/25/2019 by MarketBeat.com Staff

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