<SEC-DOCUMENT>0001485003-22-000165-index.html : 20221212
<SEC-HEADER>0001485003-22-000165.hdr.sgml : 20221212
<ACCEPTANCE-DATETIME>20221212161632
ACCESSION NUMBER:		0001485003-22-000165
CONFORMED SUBMISSION TYPE:	425
PUBLIC DOCUMENT COUNT:		26
FILED AS OF DATE:		20221212
DATE AS OF CHANGE:		20221212

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:		425
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36296
		FILM NUMBER:		221457317

	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:			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:		425

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>425
<SEQUENCE>1
<FILENAME>sesnformupdatedcarismacorp.htm
<DESCRIPTION>425
<TEXT>
Document 1 - file: sesnformupdatedcarismacorp.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>carisma-corporatexdeck_d.htm
<DESCRIPTION>EX-99.1
<TEXT>
Document 2 - file: carisma-corporatexdeck_d.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>carisma-corporatexdeck_d001.jpg
<TEXT>
Document 3 - file: carisma-corporatexdeck_d001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>carisma-corporatexdeck_d002.jpg
<TEXT>
Document 4 - file: carisma-corporatexdeck_d002.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>carisma-corporatexdeck_d003.jpg
<TEXT>
Document 5 - file: carisma-corporatexdeck_d003.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>carisma-corporatexdeck_d004.jpg
<TEXT>
Document 6 - file: carisma-corporatexdeck_d004.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>carisma-corporatexdeck_d005.jpg
<TEXT>
Document 7 - file: carisma-corporatexdeck_d005.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>carisma-corporatexdeck_d006.jpg
<TEXT>
Document 8 - file: carisma-corporatexdeck_d006.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>carisma-corporatexdeck_d007.jpg
<TEXT>
Document 9 - file: carisma-corporatexdeck_d007.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>carisma-corporatexdeck_d008.jpg
<TEXT>
Document 10 - file: carisma-corporatexdeck_d008.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>carisma-corporatexdeck_d009.jpg
<TEXT>
Document 11 - file: carisma-corporatexdeck_d009.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>carisma-corporatexdeck_d010.jpg
<TEXT>
Document 12 - file: carisma-corporatexdeck_d010.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>carisma-corporatexdeck_d011.jpg
<TEXT>
Document 13 - file: carisma-corporatexdeck_d011.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>carisma-corporatexdeck_d012.jpg
<TEXT>
Document 14 - file: carisma-corporatexdeck_d012.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>15
<FILENAME>carisma-corporatexdeck_d013.jpg
<TEXT>
Document 15 - file: carisma-corporatexdeck_d013.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>16
<FILENAME>carisma-corporatexdeck_d014.jpg
<TEXT>
Document 16 - file: carisma-corporatexdeck_d014.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>17
<FILENAME>carisma-corporatexdeck_d015.jpg
<TEXT>
Document 17 - file: carisma-corporatexdeck_d015.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>18
<FILENAME>carisma-corporatexdeck_d016.jpg
<TEXT>
Document 18 - file: carisma-corporatexdeck_d016.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>19
<FILENAME>carisma-corporatexdeck_d017.jpg
<TEXT>
Document 19 - file: carisma-corporatexdeck_d017.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>20
<FILENAME>carisma-corporatexdeck_d018.jpg
<TEXT>
Document 20 - file: carisma-corporatexdeck_d018.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>21
<FILENAME>carisma-corporatexdeck_d019.jpg
<TEXT>
Document 21 - file: carisma-corporatexdeck_d019.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>22
<FILENAME>carisma-corporatexdeck_d020.jpg
<TEXT>
Document 22 - file: carisma-corporatexdeck_d020.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>23
<FILENAME>carisma-corporatexdeck_d021.jpg
<TEXT>
Document 23 - file: carisma-corporatexdeck_d021.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>24
<FILENAME>carisma-corporatexdeck_d022.jpg
<TEXT>
Document 24 - file: carisma-corporatexdeck_d022.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>25
<FILENAME>carisma-corporatexdeck_d023.jpg
<TEXT>
Document 25 - file: carisma-corporatexdeck_d023.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>26
<FILENAME>carisma-corporatexdeck_d024.jpg
<TEXT>
Document 26 - file: carisma-corporatexdeck_d024.jpg

</DOCUMENT>
</SEC-DOCUMENT>