0001104659-18-005845.txt : 20180201
0001104659-18-005845.hdr.sgml : 20180201
20180201160150
ACCESSION NUMBER: 0001104659-18-005845
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20180130
FILED AS OF DATE: 20180201
DATE AS OF CHANGE: 20180201
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Foster Wayne
CENTRAL INDEX KEY: 0001709769
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-38129
FILM NUMBER: 18566873
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
2018-01-30
0
0001442836
Mersana Therapeutics, Inc.
MRSN
0001709769
Foster Wayne
C/O MERSANA THERAPEUTICS, INC.
840 MEMORIAL DRIVE
CAMBRIDGE
MA
02139
0
1
0
0
Vice President of Finance
Common Stock
2018-01-30
4
M
0
889
1.62
A
57267
D
Common Stock
2018-01-30
4
M
0
8055
1.53
A
65322
D
Common Stock
2018-01-30
4
M
0
3262
4.10
A
68584
D
Common Stock
2018-01-30
4
M
0
2499
6.98
A
71083
D
Option to Purchase Common Stock
1.62
2018-01-30
4
M
0
889
0
D
2024-12-15
Common Stock
889
889
D
Option to Purchase Common Stock
1.53
2018-01-30
4
M
0
8055
0
D
2025-06-11
Common Stock
8055
12084
D
Option to Purchase Common Stock
4.10
2018-01-30
4
M
0
3262
0
D
2026-08-29
Common Stock
3262
8155
D
Option to Purchase Common Stock
6.98
2018-01-30
4
M
0
2499
0
D
2027-03-13
Common Stock
2499
10834
D
The original option grant for 3,555 option shares vests in equal quarterly installments over the first four years after the vesting commencement date, January 2, 2015.
The original option grant for 32,222 option shares vests in equal quarterly installments over the first four years after the vesting commencement date, June 12, 2015.
The original option grant for 13,047 option shares vests in equal quarterly installments over the first four years after the vesting commencement date, July 1, 2016.
The original option grant for 13,333 option shares vests in equal quarterly installments over the first four years after the vesting commencement date, March 14, 2017.
/s/ Eva M. Jack , as Attorney-in-Fact
2018-02-01