0001209191-19-017378.txt : 20190306
0001209191-19-017378.hdr.sgml : 20190306
20190306163834
ACCESSION NUMBER: 0001209191-19-017378
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20190305
FILED AS OF DATE: 20190306
DATE AS OF CHANGE: 20190306
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: New Enterprise Associates 14, L.P.
CENTRAL INDEX KEY: 0001544328
STATE OF INCORPORATION: E9
FISCAL YEAR END: 1231
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-38129
FILM NUMBER: 19662975
BUSINESS ADDRESS:
STREET 1: 1954 GREENSPRING DRIVE
STREET 2: SUITE 600
CITY: TIMONIUM
STATE: MD
ZIP: 21093
BUSINESS PHONE: 410-842-4000
MAIL ADDRESS:
STREET 1: 1954 GREENSPRING DRIVE
STREET 2: SUITE 600
CITY: TIMONIUM
STATE: MD
ZIP: 21093
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Sonsini Peter W.
CENTRAL INDEX KEY: 0001559807
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-38129
FILM NUMBER: 19662976
MAIL ADDRESS:
STREET 1: 2855 SAND HILL ROAD
CITY: MENLO PARK
STATE: CA
ZIP: 94025
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: NEA 14 GP, LTD
CENTRAL INDEX KEY: 0001551532
STATE OF INCORPORATION: E9
FISCAL YEAR END: 1231
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-38129
FILM NUMBER: 19662977
BUSINESS ADDRESS:
STREET 1: 1954 GREENSPRING DRIVE
STREET 2: SUITE 600
CITY: TIMONIUM
STATE: MD
ZIP: 21093
BUSINESS PHONE: 410-842-4000
MAIL ADDRESS:
STREET 1: 1954 GREENSPRING DRIVE
STREET 2: SUITE 600
CITY: TIMONIUM
STATE: MD
ZIP: 21093
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: NEA Partners 14, L.P.
CENTRAL INDEX KEY: 0001551531
STATE OF INCORPORATION: E9
FISCAL YEAR END: 1231
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-38129
FILM NUMBER: 19662978
BUSINESS ADDRESS:
STREET 1: 1954 GREENSPRING DRIVE
STREET 2: SUITE 600
CITY: TIMONIUM
STATE: MD
ZIP: 21093
BUSINESS PHONE: 410-842-4000
MAIL ADDRESS:
STREET 1: 1954 GREENSPRING DRIVE
STREET 2: SUITE 600
CITY: TIMONIUM
STATE: MD
ZIP: 21093
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: BARRIS PETER J
CENTRAL INDEX KEY: 0001005561
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-38129
FILM NUMBER: 19662979
MAIL ADDRESS:
STREET 1: 1119 ST PAUL STREET
CITY: BALTIMORE
STATE: MD
ZIP: 21202
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: BASKETT FOREST
CENTRAL INDEX KEY: 0001277631
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-38129
FILM NUMBER: 19662980
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Florence Anthony A. Jr.
CENTRAL INDEX KEY: 0001559827
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-38129
FILM NUMBER: 19662981
MAIL ADDRESS:
STREET 1: 5425 WISCONSIN AVENUE, SUITE 800
CITY: CHEVY CHASE
STATE: MD
ZIP: 20815
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: KERINS PATRICK J
CENTRAL INDEX KEY: 0001235112
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-38129
FILM NUMBER: 19662982
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: SANDELL SCOTT D
CENTRAL INDEX KEY: 0001237289
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-38129
FILM NUMBER: 19662983
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
2019-03-05
0
0001442836
Mersana Therapeutics, Inc.
MRSN
0001544328
New Enterprise Associates 14, L.P.
1954 GREENSPRING DRIVE
SUITE 600
TIMONIUM
MD
21093
0
0
1
0
0001559807
Sonsini Peter W.
2855 SAND HILL ROAD
MENLO PARK
CA
94025
0
0
1
0
0001551532
NEA 14 GP, LTD
1954 GREENSPRING DRIVE
SUITE 600
TIMONIUM
MD
21093
0
0
1
0
0001551531
NEA Partners 14, L.P.
1954 GREENSPRING DRIVE
SUITE 600
TIMONIUM
MD
21093
0
0
1
0
0001005561
BARRIS PETER J
1954 GREENSPRING DRIVE
SUITE 600
TIMONIUM
MD
21093
0
0
1
0
0001277631
BASKETT FOREST
1954 GREENSPRING DRIVE
SUITE 600
TIMONIUM
MD
21093
0
0
1
0
0001559827
Florence Anthony A. Jr.
5425 WISCONSIN AVENUE
SUITE 800
CHEVY CHASE
MD
20815
0
0
1
0
0001235112
KERINS PATRICK J
1954 GREENSPRING DRIVE
SUITE 600
TIMONIUM
MD
21093
0
0
1
0
0001237289
SANDELL SCOTT D
1954 GREENSPRING DRIVE
SUITE 600
TIMONIUM
MD
21093
0
0
1
0
Common Stock
2019-03-05
4
P
0
3750000
4.00
A
11890138
D
The securities are directly held by NEA 14 and are indirectly held by NEA Partners 14, L.P. ("NEA Partners 14"), the sole general partner of NEA 14, NEA 14 GP, LTD ("NEA 14 LTD"), the sole general partner of NEA Partners 14 and each of the individual directors of NEA 14 LTD (NEA Partners 14, NEA 14 LTD and the individual directors of NEA 14 LTD (collectively, the "Directors") together, the "Indirect Reporting Persons"). The Directors of NEA 14 LTD are Peter J. Barris, Forest Baskett, Anthony A. Florence, Jr., Patrick J. Kerins, David M. Mott, Scott D. Sandell and Peter W. Sonsini. The Indirect Reporting Persons disclaim beneficial ownership within the meaning of Section 16 of the Securities Exchange Act of 1934, as amended, or otherwise of such portion of the NEA 14 securities in which the Indirect Reporting Persons have no pecuniary interest.
/s/ Sasha Keough, attorney-in-fact
2019-03-06