0001104659-19-034781.txt : 20190611 0001104659-19-034781.hdr.sgml : 20190611 20190611161415 ACCESSION NUMBER: 0001104659-19-034781 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20190607 FILED AS OF DATE: 20190611 DATE AS OF CHANGE: 20190611 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Dere Willard H CENTRAL INDEX KEY: 0001311569 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38129 FILM NUMBER: 19891138 MAIL ADDRESS: STREET 1: ONE AMGEN CENTER DRIVE CITY: THOUSAND OAKS STATE: CA ZIP: 91320-1799 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 2019-06-07 0 0001442836 Mersana Therapeutics, Inc. MRSN 0001311569 Dere Willard H C/O MERSANA THERAPEUTICS, INC. 840 MEMORIAL DRIVE CAMBRIDGE MA 02139 1 0 0 0 Stock Option (right to buy) 4.31 2019-06-07 4 A 0 25000 0 A 2029-06-07 Common Stock 25000 25000 D The option vests in full on the earlier of the first anniversary of the date of grant or the date of the 2020 Annual Meeting of Stockholders of Mersana Therapeutics, Inc. /s/ David Spellman, as Attorney-in-Fact 2019-06-11