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    <ACCEPTANCE-DATETIME>20230119161858
    ACCESSION NUMBER:		0001104659-23-005017
    CONFORMED SUBMISSION TYPE:	424B3
    PUBLIC DOCUMENT COUNT:		50
    FILED AS OF DATE:		20230119
    DATE AS OF CHANGE:		20230119

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			Sesen Bio, Inc.
    		CENTRAL INDEX KEY:			0001485003
    		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
    		IRS NUMBER:				262025616
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		424B3
    		SEC ACT:		1933 Act
    		SEC FILE NUMBER:	333-267891
    		FILM NUMBER:		23537638

    	BUSINESS ADDRESS:
    		STREET 1:		245 FIRST STREET
    		STREET 2:		SUITE 1800
    		CITY:			CAMBRIDGE
    		STATE:			MA
    		ZIP:			02142
    		BUSINESS PHONE:		617-444-8550

    	MAIL ADDRESS:
    		STREET 1:		245 FIRST STREET
    		STREET 2:		SUITE 1800
    		CITY:			CAMBRIDGE
    		STATE:			MA
    		ZIP:			02142

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	Eleven Biotherapeutics, Inc.
    		DATE OF NAME CHANGE:	20100223
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