0001104659-20-081224.txt : 20200706 0001104659-20-081224.hdr.sgml : 20200706 20200706161557 ACCESSION NUMBER: 0001104659-20-081224 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20200702 FILED AS OF DATE: 20200706 DATE AS OF CHANGE: 20200706 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Mandelia Ashish CENTRAL INDEX KEY: 0001782805 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38129 FILM NUMBER: 201013688 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 2020-07-02 0 0001442836 Mersana Therapeutics, Inc. MRSN 0001782805 Mandelia Ashish C/O MERSANA THERAPEUTICS, INC. 840 MEMORIAL DRIVE CAMBRIDGE MA 02139 0 1 0 0 VP, Controller Common Stock 2020-06-30 5 P 0 E 3383 4.87 A 3383 D Common Stock 2020-07-02 4 S 0 3383 22.49 D 0 D Transaction made pursuant to Issuer's 2017 Employee Stock Purchase Program ("ESPP"), for the ESPP purchase period of January 1, 2020 through June 30, 2020. In accordance with the ESPP, these shares were purchased at a price equal to 85% of the closing price of Issuer's common stock December 31, 2019. Transaction made pursuant to the Reporting Person's company-approved trading plan under Rule 10b5-1. /s/ Eva Jack, as Attorney-in-Fact 2020-07-06