0001104659-23-093468.txt : 20230818
0001104659-23-093468.hdr.sgml : 20230818
20230818160145
ACCESSION NUMBER: 0001104659-23-093468
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20230816
FILED AS OF DATE: 20230818
DATE AS OF CHANGE: 20230818
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: MISRA TUSHAR
CENTRAL INDEX KEY: 0001877233
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-38129
FILM NUMBER: 231185818
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
tm2324175-1_4seq1.xml
OWNERSHIP DOCUMENT
X0508
4
2023-08-16
0
0001442836
Mersana Therapeutics, Inc.
MRSN
0001877233
MISRA TUSHAR
C/O MERSANA THERAPEUTICS, INC.
840 MEMORIAL DRIVE
CAMBRIDGE
MA
02139
0
1
0
0
SVP, Chief Manuf. Officer
1
Common Stock
2023-08-16
4
M
0
6250
0
A
13415
D
Common Stock
2023-08-17
4
S
0
1908
1.18
D
11507
D
Restricted Stock Unit
2023-08-16
4
M
0
6250
0
D
Common Stock
6250
12500
D
Represents shares of common stock received upon vesting of a portion of the restricted stock units ("RSUs") awarded to the Reporting Person on August 16, 2021.
Includes 1,235 shares of common stock acquired on June 15, 2023 by the Reporting Person through the Issuer's employee stock purchase plan.
Represents the sale of shares of common stock to satisfy the Reporting Person's tax withholding obligations in connection with the service-based vesting and settlement of the RSUs pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 10, 2023. The sale was effected through an automatic "sell to cover" transaction that did not represent a discretionary trade by the Reporting Person.
Each RSU represents the contingent right to receive one share of common stock of the Issuer.
The RSUs will vest in equal annual installments over the first four years after the vesting commencement date, August 16, 2021, subject to the Reporting Person's continued service to the Issuer on such vesting date.
/s/ Brigitte Eichner, Attorney-in-Fact
2023-08-18