CIK: 1531564 - Address: C/o Merrimack Pharmaceuticals, Inc., One Kendall Square, Suite B7201, Cambridge, MA 02139
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7/27/16 16:51
7/26/16
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOHead of M.d742.4793014051D-1-44-12-23-9-15502-13-6-43
1/7/16 18:41
1/5/16
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOHead of M.d71.81942321D25-36-38-22-17-9-12-8-1-9-828-14-39
1/7/16 18:41
1/5/16
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOHead of S.d-328.009-4-1621D25-36-38-22-17-9-12-8-1-9-828-14-39
12/3/15 16:53
12/1/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOHead of M.d91.811153121D116-3-20-11-9-410-350-8-19-19-37
12/3/15 16:53
12/1/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOHead of S.d-479.3311-5-1921D116-3-20-11-9-410-350-8-19-19-37
11/3/15 17:30
11/2/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOHead of M.d111.811763921D2729-13-41121501-1-9-38-36-46
11/3/15 17:30
11/2/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOHead of S.d-579.4217-6-2221D2729-13-41121501-1-9-38-36-46
10/16/15 19:09
10/16/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOHead of M.d21.81161521D18121-24-10-211762-11-7-37-19-49
10/16/15 19:09
10/16/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOHead of S.d-1010.0016-1-421D18121-24-10-211762-11-7-37-19-49
10/5/15 16:11
10/1/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOHead of M.dm91.811553121D1304-23-25-4-12-618-215-20-14-38
10/5/15 16:11
10/1/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOHead of S.dm-418.2015-5-1921D1304-23-25-4-12-618-215-20-14-38
9/1/15 16:11
9/1/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOHead of M.d111.811763921D20045-14-13306079-10-1-27-48
9/1/15 16:11
9/1/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOHead of S.d-599.8817-6-2221D20045-14-13306079-10-1-27-48
8/19/15 16:09
8/17/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOHead of M.d111.811563921D21553-3-18-105110-8-74-17-46-52
8/19/15 16:09
8/17/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOHead of S.d-6310.4915-6-2221D21553-3-18-105110-8-74-17-46-52
7/17/15 16:10
7/15/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOHead of M.d111.811563921D129811-141-8-5-6-8-6-5-16-42-50
7/17/15 16:10
7/15/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOHead of S.d-7111.8415-6-2221D129811-141-8-5-6-8-6-5-16-42-50
6/19/15 21:04
6/18/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOHead of M.d41.811221021D91562119391234-14-10-31-48
6/19/15 21:04
6/18/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOHead of S.d-2412.0012-2-921D91562119391234-14-10-31-48
6/15/15 18:12
6/15/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOHead of M.d111.811263921D1004310-7-8-13-6-3-1109-4-22-43
6/15/15 18:12
6/15/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOHead of S.d-6410.6712-6-2221D1004310-7-8-13-6-3-1109-4-22-43
5/19/15 17:03
5/15/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOHead of M.d141.811886021D1399256248817100-4-13-15-28-48
5/19/15 17:03
5/15/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOHead of S.d-9912.3318-8-2721D1399256248817100-4-13-15-28-48
4/15/15 18:07
4/15/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeM.d141.811786021D11017062119116711-10-10-29-37
4/15/15 18:07
4/15/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeS.d-10212.7917-8-2721D11017062119116711-10-10-29-37
3/18/15 18:47
3/16/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeM.dm141.811586021D10011565133711-370-510-11-12-40
3/18/15 18:47
3/16/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeS.dm-9611.9515-8-2721D10011565133711-370-510-11-12-40
3/6/15 16:34
3/4/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeM.d111.811363921D91117803427271611-3-9-3-8-18-45
3/6/15 16:34
3/4/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeS.d-7212.0013-6-2221D91117803427271611-3-9-3-8-18-45
2/19/15 16:44
2/17/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeM.d111.811463921D671115727-51322100-11017-4-51
2/19/15 16:44
2/17/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeS.d-6210.3114-6-2221D671115727-51322100-11017-4-51
1/16/15 17:46
1/15/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeM.d111.812063921D6965782712-4-8-9-6-12-3212-45
1/16/15 17:46
1/15/15
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeS.d-6711.1920-6-2221D6965782712-4-8-9-6-12-3212-45
12/16/14 16:51
12/15/14
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeM.d111.761963921D451182835873-12742010-22
12/16/14 16:51
12/15/14
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeS.d-6410.6319-6-2221D451182835873-12742010-22
12/9/14 17:19
12/5/14
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeM.d51.711831621D431032237511-23-1-2191214-18
12/9/14 17:19
12/5/14
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeS.d-3010.0018-3-1221D431032237511-23-1-2191214-18
11/18/14 17:07
11/17/14
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeM.dm91.711953121D2124529267-8-21-23162444-5
11/18/14 17:07
11/17/14
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeS.dm-438.5519-5-1921D2124529267-8-21-23162444-5
10/24/14 16:14
10/23/14
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeM.d51.712331621D3217110460255165-2-1-44323
10/24/14 16:14
10/23/14
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeS.d-279.0523-3-1221D3217110460255165-2-1-44323
10/17/14 16:44
10/15/14
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeM.d71.712642321D161519244328816380284916
10/17/14 16:44
10/15/14
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeS.d-328.0026-4-1621D161519244328816380284916
9/26/14 16:14
9/24/14
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeM.d211.71141212821D-2510747812198104916364512
9/26/14 16:14
9/24/14
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeS.d-998.2214-12-3621D-2510747812198104916364512
8/28/14 16:23
8/26/14
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeM.d301.25102421D-611140-12211338-1-515355248
8/28/14 16:23
8/26/14
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeS.d-1656.8710-24-5321D-611140-12211338-1-515355248
5/29/14 19:17
5/27/14
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeM.d201.25271629721D23551616383191910-4-6-10-171447
5/29/14 19:17
5/27/14
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeS.d-1288.0027-16-4321D23551616383191910-4-6-10-171447
4/30/13 16:34
4/29/13
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeM.d112.19253121D-34-22-17-16-16-9-2-9-13100-30-8
4/30/12 08:31
4/27/12
MACKMerrimack Pharmaceuticals IncDEHealthDrugPharmaceutical PreparationsStewart Edward J.MAOSVP,P,HeM.d362.19116New16D11-10293-415-12-38

DDerivative transaction in filing (usually option exercise)
MMultiple transactions in filing; earliest reported transaction date and weighted average transaction price
AAmended filing
EError detected in filing
S - SaleSale of securities on an exchange or to another person
S - Sale+OESale of securities on an exchange or to another person (after option exercise)
F - TaxPayment of exercise price or tax liability using portion of securities received from the company
P - PurchasePurchase of securities on an exchange or from another person
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