0001104659-21-035074.txt : 20210311
0001104659-21-035074.hdr.sgml : 20210311
20210311170149
ACCESSION NUMBER: 0001104659-21-035074
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20210309
FILED AS OF DATE: 20210311
DATE AS OF CHANGE: 20210311
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Diaz Allene M.
CENTRAL INDEX KEY: 0001773314
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-38129
FILM NUMBER: 21734064
MAIL ADDRESS:
STREET 1: C/O ALLENA PHARMACEUTIALS, INC.
STREET 2: ONEW NEWTON EXECUTIVE PARK SUITE 202
CITY: NEWTON
STATE: MA
ZIP: 02462
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
tm219431-2_4seq1.xml
OWNERSHIP DOCUMENT
X0306
4
2021-03-09
0
0001442836
Mersana Therapeutics, Inc.
MRSN
0001773314
Diaz Allene M.
C/O MERSANA THERAPEUTICS, INC.
840 MEMORIAL DRIVE
CAMBRIDGE
MA
02139
1
0
0
0
Stock Option (right to buy)
18.33
2021-03-09
4
A
0
39275
0
A
2031-03-08
Common Stock
39275
39275
D
The option becomes exercisable in equal quarterly installments over three years from the date of the grant.
/s/ Brian DeSchuytner, as Attorney-in-Fact
2021-03-11