0001104659-21-088909.txt : 20210702
0001104659-21-088909.hdr.sgml : 20210702
20210702163138
ACCESSION NUMBER: 0001104659-21-088909
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20210701
FILED AS OF DATE: 20210702
DATE AS OF CHANGE: 20210702
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: 211070644
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
tm2121378d1_4seq1.xml
OWNERSHIP DOCUMENT
X0306
4
2021-07-01
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
2021-07-01
4
S
0
942
13.60
D
0
D
Transaction effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 11, 2020.
These shares were acquired under the Issuer's 2017 Employee Stock Purchase Plan on June 30, 2021.
/s/ Brian DeSchuytner, as Attorney-in-Fact
2021-07-02