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Form 3 - Initial statement of beneficial ownership of securities:
SEC Accession No. 0000921895-19-000848
Filing Date
2019-03-20
Accepted
2019-03-20 19:41:23
Documents
1
Period of Report
2019-03-13

Document Format Files

Seq Description Document Type Size
1 OWNERSHIP DOCUMENT form310680006_03202019.html 3  
1 OWNERSHIP DOCUMENT form310680006_03202019.xml 3 7296
  Complete submission text file 0000921895-19-000848.txt   10214
Mailing Address ONE KENDALL SQUARE SUITE B7201 CAMBRIDGE MA 02139
Business Address ONE KENDALL SQUARE SUITE B7201 CAMBRIDGE MA 02139 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 Fund, LP (Reporting) CIK: 0001640809 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-35409 | Film No.: 19695722

Mailing Address 1455 NW LEARY WAY, SUITE 400 SEATTLE WA 98107
Business Address 1455 NW LEARY WAY, SUITE 400 SEATTLE WA 98107 650-862-4295
22NW, LP (Reporting) CIK: 0001694297 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-35409 | Film No.: 19695721

Mailing Address 1455 NW LEARY WAY, SUITE 400 SEATTLE WA 98107
Business Address
English Aron R. (Reporting) CIK: 0001770436 (see all company filings)

Type: 3 | Act: 34 | File No.: 001-35409 | Film No.: 19695724

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 Fund GP, LLC (Reporting) CIK: 0001770575 (see all company filings)

Type: 3 | Act: 34 | File No.: 001-35409 | Film No.: 19695723