SEC Seal
SEC Banner
Search the Next-Generation EDGAR System
Filing Detail
Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0000899243-22-003837
Filing Date
2022-02-01
Accepted
2022-02-01 16:05:37
Documents
1
Period of Report
2022-01-28

Document Format Files

Seq Description Document Type Size
1 FORM 4 SUBMISSION doc4.html 4  
1 FORM 4 SUBMISSION doc4.xml 4 18304
  Complete submission text file 0000899243-22-003837.txt   22457
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 60 EAST 42ND STREET 9TH FLOOR NEW YORK NY 10165
Business Address 60 EAST 42ND STREET 9TH FLOOR NEW YORK NY 10165 212-446-2465
NEWTYN PARTNERS, LP (Reporting) CIK: 0001548707 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-35409 | Film No.: 22578927

Mailing Address 60 EAST 42ND STREET 9TH FLOOR NEW YORK NY 10165
Business Address 60 EAST 42ND STREET 9TH FLOOR NEW YORK NY 10165 212-446-2465
NEWTYN TE PARTNERS, LP (Reporting) CIK: 0001548709 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-35409 | Film No.: 22578926

Mailing Address 60 EAST 42ND STREET 9TH FLOOR NEW YORK NY 10165
Business Address 60 EAST 42ND STREET 9TH FLOOR NEW YORK NY 10165 212-446-2465
Newtyn Management, LLC (Reporting) CIK: 0001569241 (see all company filings)

State of Incorp.: NY | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-35409 | Film No.: 22578928

Mailing Address 60 EAST 42ND ST, 9TH FLOOR NEW YORK NY 10165
Business Address
Levy Noah G. (Reporting) CIK: 0001788608 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-35409 | Film No.: 22578929

Mailing Address 60 EAST 42ND STREET 9TH FLOOR NEW YORK NY 10165
Business Address 60 EAST 42ND STREET 9TH FLOOR NEW YORK NY 10165 212-446-2460
Newtyn Capital Partners, LP (Reporting) CIK: 0001789643 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-35409 | Film No.: 22578924

Mailing Address 60 EAST 42ND STREET 9TH FLOOR NEW YORK NY 10165
Business Address 60 EAST 42ND STREET 9TH FLOOR NEW YORK NY 10165 212-446-2460
Ledo Capital, LLC (Reporting) CIK: 0001789647 (see all company filings)

State of Incorp.: NY | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-35409 | Film No.: 22578922