0001179110-15-008112.txt : 20150519 0001179110-15-008112.hdr.sgml : 20150519 20150519170456 ACCESSION NUMBER: 0001179110-15-008112 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20150519 FILED AS OF DATE: 20150519 DATE AS OF CHANGE: 20150519 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: MERRIMACK PHARMACEUTICALS INC CENTRAL INDEX KEY: 0001274792 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: ONE KENDALL SQUARE STREET 2: SUITE B7201 CITY: CAMBRIDGE STATE: MA ZIP: 02139 BUSINESS PHONE: 617-441-1000 MAIL ADDRESS: STREET 1: ONE KENDALL SQUARE STREET 2: SUITE B7201 CITY: CAMBRIDGE STATE: MA ZIP: 02139 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Nielsen Ulrik B. CENTRAL INDEX KEY: 0001531962 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-35409 FILM NUMBER: 15877264 MAIL ADDRESS: STREET 1: MERRIMACK PHARMACEUTICALS, INC. STREET 2: ONE KENDALL SQUARE, SUITE B7201 CITY: CAMBRIDGE STATE: MA ZIP: 02139 4 1 edgar.xml FORM 4 - X0306 4 2015-05-19 0 0001274792 MERRIMACK PHARMACEUTICALS INC MACK 0001531962 Nielsen Ulrik B. C/O MERRIMACK PHARMACEUTICALS, INC. ONE KENDALL SQUARE, SUITE B7201 CAMBRIDGE MA 02139 1 0 0 0 Common Stock 2015-05-19 4 M 0 23175 2.47 A 249986 D Common Stock 2015-05-19 4 M 0 16825 2.47 A 266811 D Common Stock 2015-05-19 4 S 0 40000 13.04 D 226811 D Stock Option (right to buy) 2.47 2015-05-19 4 M 0 23175 0 D 2016-10-03 Common Stock 23175 0 D Stock Option (right to buy) 2.47 2015-05-19 4 M 0 16825 0 D 2016-10-03 Common Stock 16825 10000 D This transaction was effected pursuant to a Rule 10b5-1 trading plan. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.83 to $13.25, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range. This option is fully vested. /s/ Jeffrey A. Munsie, attorney-in-fact 2015-05-19