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Form 3 - Initial statement of beneficial ownership of securities:
SEC Accession No. 0000921895-19-002049
Filing Date
2019-07-25
Accepted
2019-07-25 20:36:57
Documents
1
Period of Report
2019-07-24

Document Format Files

Seq Description Document Type Size
1 OWNERSHIP DOCUMENT form310680006_07252019.html 3  
1 OWNERSHIP DOCUMENT form310680006_07252019.xml 3 3407
  Complete submission text file 0000921895-19-002049.txt   4916
Mailing Address ONE BROADWAY 14TH FLOOR CAMBRIDGE MA 02142
Business Address ONE BROADWAY 14TH FLOOR CAMBRIDGE MA 02142 617-441-1000
MERRIMACK PHARMACEUTICALS INC (Issuer) CIK: 0001274792 (see all company filings)

IRS No.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 2834 Pharmaceutical Preparations

Mailing Address 1455 NW LEARY WAY, SUITE 400 SEATTLE WA 98107
Business Address 1455 NW LEARY WAY, SUITE 400 SEATTLE WA 98107 206-227-3078
22NW GP, Inc. (Reporting) CIK: 0001783663 (see all company filings)

Type: 3 | Act: 34 | File No.: 001-35409 | Film No.: 19975721