0000899243-20-010592.txt : 20200409
0000899243-20-010592.hdr.sgml : 20200409
20200409161112
ACCESSION NUMBER: 0000899243-20-010592
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20200407
FILED AS OF DATE: 20200409
DATE AS OF CHANGE: 20200409
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: 20784645
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
2020-04-07
0
0001442836
Mersana Therapeutics, Inc.
MRSN
0001657434
Hack Andrew A. F.
C/O BAIN CAPITAL LIFE SCIENCES INVESTORS
200 CLARENDON STREET
BOSTON
MA
02116
1
0
0
0
Common Stock
2020-04-07
4
P
0
2800000
5.59
A
2800000
I
See Footnotes
Common Stock
2020-04-07
4
P
0
645667
7.74
A
3445667
I
See Footnotes
Represents shares of common stock held directly by Bain Capital Life Sciences Fund II, L.P. ("BCLS II") and BCIP Life Sciences Associates, LP ("BCIPLS" and, together with BCLS II, the "Bain Life Sciences Entities").
Bain Capital Life Sciences Investors, LLC ("BCLSI") is the ultimate general partner of the BCLS II, and governs the investment strategy and decision-making process with respect to investments held by BCIPLS. Dr. Hack is a Managing Director of BCLSI. By virtue of the relationships described in this footnote, Dr. Hack may be deemed to share voting and dispositive power with respect to the securities held by the Bain Life Sciences Entities. Dr. Hack disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.
/s/ Andrew A.F. Hack
2020-04-09