Form SC 13G - Statement of Beneficial Ownership by Certain Investors:
SEC Accession No. 0001085146-16-002922
Filing Date
2016-02-10
Accepted
2016-02-10 16:59:16
Documents
1

Document Format Files

Seq Description Document Type Size
1 WESTFIELD CAPITAL MANAGEMENT COMPANY, L.P. mack_21016.htm SC 13G 26012
  Complete submission text file 0001085146-16-002922.txt   27644
Mailing Address ONE FINANCIAL CENTER 24FL BOSTON MA 02111
Business Address ONE FINANCIAL CENTER 24FL BOSTON MA 02111 6174287100
WESTFIELD CAPITAL MANAGEMENT CO LP (Filed by) CIK: 0001177719 (see all company filings)

EIN.: 800175963 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G

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 (Subject) CIK: 0001274792 (see all company filings)

EIN.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G | Act: 34 | File No.: 005-86778 | Film No.: 161406474
SIC: 2834 Pharmaceutical Preparations