0000899243-21-015475.txt : 20210409 0000899243-21-015475.hdr.sgml : 20210409 20210409160511 ACCESSION NUMBER: 0000899243-21-015475 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210407 FILED AS OF DATE: 20210409 DATE AS OF CHANGE: 20210409 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: CROCKER GARY L CENTRAL INDEX KEY: 0001094201 STATE OF INCORPORATION: UT FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-35409 FILM NUMBER: 21817848 MAIL ADDRESS: STREET 1: MERRIMACK PHARMACEUTICALS, INC. STREET 2: ONE KENDALL SQUARE, SUITE B7201 CITY: CAMBRIDGE STATE: MA ZIP: 02139 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 2021-04-07 0 0001274792 MERRIMACK PHARMACEUTICALS INC MACK 0001094201 CROCKER GARY L C/O MERRIMACK PHARMACEUTICALS, INC. ONE BROADWAY 14TH FLOOR CAMBRIDGE MA 02142 1 1 0 0 See Remarks Common Stock 2021-04-07 4 P 0 2127 6.19 A 31558 I See footnote Shares held by Crocker Family Investments, LLC, over which Reporting Person is the Managing Member. Chairman, President, and Treasurer Gary L. Crocker 2021-04-09