<SEC-DOCUMENT>9999999997-20-001241-index.html : 20200317
<SEC-HEADER>9999999997-20-001241.hdr.sgml : 20200317
<ACCEPTANCE-DATETIME>20200317092343
ACCESSION NUMBER:		9999999997-20-001241
CONFORMED SUBMISSION TYPE:	CT ORDER
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20200317
DATE AS OF CHANGE:		20200317
ACTION DATE:               	20200317
RECEIVED DATE:           	20200317

FILER:

	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:		CT ORDER
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-218412
		FILM NUMBER:		20719435

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>CT ORDER
<SEQUENCE>1
<FILENAME>filename1.pdf
<TEXT>
Document 1 - file: filename1.pdf

</DOCUMENT>
</SEC-DOCUMENT>