<SEC-DOCUMENT>0000921895-23-000056-index.html : 20230105
<SEC-HEADER>0000921895-23-000056.hdr.sgml : 20230105
<ACCEPTANCE-DATETIME>20230105143813
ACCESSION NUMBER:		0000921895-23-000056
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20230105
DATE AS OF CHANGE:		20230105

SUBJECT COMPANY:	

	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:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-87951
		FILM NUMBER:		23510790

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Radoff Bradley Louis
		CENTRAL INDEX KEY:			0001380585

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	MAIL ADDRESS:	
		STREET 1:		2727 KIRBY DRIVE
		STREET 2:		UNIT 29L
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77098
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>sc13da209076053_01052023.htm
<DESCRIPTION>AMENDMENT NO. 2 TO THE SCHEDULE 13D
<TEXT>
Document 1 - file: sc13da209076053_01052023.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>ex991to13da209076053_010523.htm
<DESCRIPTION>PRESS RELEASE
<TEXT>
Document 2 - file: ex991to13da209076053_010523.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.2
<SEQUENCE>3
<FILENAME>ex992to13da209076053_010523.htm
<DESCRIPTION>OPEN LETTER
<TEXT>
Document 3 - file: ex992to13da209076053_010523.htm

</DOCUMENT>
</SEC-DOCUMENT>