<SEC-DOCUMENT>0001171520-23-000104-index.html : 20230214
<SEC-HEADER>0001171520-23-000104.hdr.sgml : 20230214
<ACCEPTANCE-DATETIME>20230213180418
ACCESSION NUMBER:		0001171520-23-000104
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20230214
DATE AS OF CHANGE:		20230213
GROUP MEMBERS:		HABIB KAIROUZ
GROUP MEMBERS:		JOSHUA RUCH
GROUP MEMBERS:		KARIBA LLC
GROUP MEMBERS:		MARK LESCHLY
GROUP MEMBERS:		PINNACLE INVESTMENT PARTNERS Q-6, L.P.
GROUP MEMBERS:		PINNACLE MANAGEMENT PARTNERS LLC
GROUP MEMBERS:		RHO CAPITAL PARTNERS LLC
GROUP MEMBERS:		RHO VENTURES V AFFILIATES, L.L.C.
GROUP MEMBERS:		RHO VENTURES V, L.P.
GROUP MEMBERS:		RMV V, L.L.C.
GROUP MEMBERS:		RUGU3 LLC

SUBJECT COMPANY:	

	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

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-90033
		FILM NUMBER:		23620590

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Rho Ventures V, L.P.
		CENTRAL INDEX KEY:			0001325383
		IRS NUMBER:				201953730
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		C/O RHO CAPITAL PARTNERS, INC.
		STREET 2:		152 WEST 57TH STREET, 23RD FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
		BUSINESS PHONE:		212-751-6677

	MAIL ADDRESS:	
		STREET 1:		C/O RHO CAPITAL PARTNERS, INC.
		STREET 2:		152 WEST 57TH STREET, 23RD FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>eps10650_mersana.htm
<TEXT>
Document 1 - file: eps10650_mersana.htm

</DOCUMENT>
</SEC-DOCUMENT>