0000899243-22-000473.txt : 20220104 0000899243-22-000473.hdr.sgml : 20220104 20220104160524 ACCESSION NUMBER: 0000899243-22-000473 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20211231 FILED AS OF DATE: 20220104 DATE AS OF CHANGE: 20220104 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: RAY RUSSELL T CENTRAL INDEX KEY: 0001225960 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-35409 FILM NUMBER: 22505768 MAIL ADDRESS: STREET 1: 2525 DUPONT DR CITY: IRVINE STATE: CA ZIP: 92612 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 BROADWAY STREET 2: 14TH FLOOR CITY: CAMBRIDGE STATE: MA ZIP: 02142 BUSINESS PHONE: 617-441-1000 MAIL ADDRESS: STREET 1: ONE BROADWAY STREET 2: 14TH FLOOR CITY: CAMBRIDGE STATE: MA ZIP: 02142 4 1 doc4.xml FORM 4 SUBMISSION X0306 4 2021-12-31 0 0001274792 MERRIMACK PHARMACEUTICALS INC MACK 0001225960 RAY RUSSELL T C/O MERRIMACK PHARMACEUTICALS, INC. ONE BROADWAY 14TH FLOOR CAMBRIDGE MA 02142 1 0 0 0 Common Stock 2021-12-31 4 S 0 1000 3.8398 D 0 D /s/ Russell T. Ray 2022-01-04