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    <ACCEPTANCE-DATETIME>20220718073026
    ACCESSION NUMBER:		0001485003-22-000089
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		16
    CONFORMED PERIOD OF REPORT:	20220718
    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Other Events
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20220718
    DATE AS OF CHANGE:		20220718

    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:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-36296
    		FILM NUMBER:		221088142

    	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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    <FILENAME>ex991_vicineumprogramupd.htm
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    Document 2 - file: ex991_vicineumprogramupd.htm

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    <FILENAME>sesn-20220718.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
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    <FILENAME>ex991_vicineumprogramupd001.jpg
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