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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>9999999997-08-035830.txt : 20080814
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ACCESSION NUMBER:		9999999997-08-035830
CONFORMED SUBMISSION TYPE:	REGDEX
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		
FILED AS OF DATE:		20080812
DATE AS OF CHANGE:		20080814
EFFECTIVENESS DATE:		20080812

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MERSANA THERAPEUTICS INC
		CENTRAL INDEX KEY:			0001442836
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE

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		FORM TYPE:		REGDEX
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	021-121447
		FILM NUMBER:		08057805

	BUSINESS ADDRESS:	
		STREET 1:		840 MEMORIAL DRIVE
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02139
		BUSINESS PHONE:		617-498-0020

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		STREET 1:		840 MEMORIAL DRIVE
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02139
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This document was generated as part of a paper submission.
Please reference the Document Control Number 08057805 for access to the original document.
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