0000899243-21-002549.txt : 20210120
0000899243-21-002549.hdr.sgml : 20210120
20210120190508
ACCESSION NUMBER: 0000899243-21-002549
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20210115
FILED AS OF DATE: 20210120
DATE AS OF CHANGE: 20210120
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Hack Andrew A. F.
CENTRAL INDEX KEY: 0001657434
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-38129
FILM NUMBER: 21540000
MAIL ADDRESS:
STREET 1: 300 THIRD STREET, FIRST FLOOR
CITY: CAMBRIDGE
STATE: MA
ZIP: 02142
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
doc4.xml
FORM 4 SUBMISSION
X0306
4
2021-01-15
0
0001442836
Mersana Therapeutics, Inc.
MRSN]
0001657434
Hack Andrew A. F.
C/O BAIN CAPITAL LIFE SCIENCES
INVESTORS, LLC, 200 CLARENDON STREET
BOSTON
MA
02116
1
0
0
0
Stock Option (right to buy)
21.09
2021-01-15
4
A
0
2971
0.00
A
2031-01-15
Common Stock
2971
2971
D
The option becomes exercisable in equal quarterly installments on the last day of each calendar quarter of 2021.
/s/ Andrew A.F. Hack
2021-01-20