Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0000899243-22-024187
Filing Date
2022-06-27
Accepted
2022-06-27 16:05:28
Documents
1
Period of Report
2022-06-23

Document Format Files

Seq Description Document Type Size
1 FORM 4 SUBMISSION doc4.html 4  
1 FORM 4 SUBMISSION doc4.xml 4 13713
  Complete submission text file 0000899243-22-024187.txt   17872
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.: 221044551

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.: 221044550

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.: 221044552

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.: 221044553

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.: 221044549

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.: 221044548