0001104659-18-006860.txt : 20180206 0001104659-18-006860.hdr.sgml : 20180206 20180206162707 ACCESSION NUMBER: 0001104659-18-006860 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20180202 FILED AS OF DATE: 20180206 DATE AS OF CHANGE: 20180206 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Jack Eva M. CENTRAL INDEX KEY: 0001709771 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38129 FILM NUMBER: 18577912 MAIL ADDRESS: STREET 1: 840 MEMORIAL DRIVE CITY: CAMBRIDGE STATE: MA ZIP: 02139 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Mersana Therapeutics, Inc. CENTRAL INDEX KEY: 0001442836 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 840 MEMORIAL DRIVE CITY: CAMBRIDGE STATE: MA ZIP: 02139 BUSINESS PHONE: 617-498-0020 MAIL ADDRESS: STREET 1: 840 MEMORIAL DRIVE CITY: CAMBRIDGE STATE: MA ZIP: 02139 FORMER COMPANY: FORMER CONFORMED NAME: MERSANA THERAPEUTICS INC DATE OF NAME CHANGE: 20080813 4 1 a4.xml 4 X0306 4 2018-02-02 0 0001442836 Mersana Therapeutics, Inc. MRSN 0001709771 Jack Eva M. C/O MERSANA THERAPEUTICS, INC. 840 MEMORIAL DRIVE CAMBRIDGE MA 02139 0 1 0 0 CBO, Treasurer & Secretary Stock Option (right to buy) 14.23 2018-02-02 4 A 0 50057 0.00 A 2028-02-01 Common Stock 50057 50057 D The options vest in equal quarterly installments over the first four years after the vesting commencement date, February 2, 2018. /s/ Eva M. Jack 2018-02-06