<SEC-DOCUMENT>0001485003-22-000062-index.html : 20220509
<SEC-HEADER>0001485003-22-000062.hdr.sgml : 20220509
<ACCEPTANCE-DATETIME>20220509080146
ACCESSION NUMBER:		0001485003-22-000062
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		12
FILED AS OF DATE:		20220509
DATE AS OF CHANGE:		20220509

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:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36296
		FILM NUMBER:		22903298

	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>DEFA14A
<SEQUENCE>1
<FILENAME>sesn-defa14a1q2022earnings.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: sesn-defa14a1q2022earnings.htm

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<TEXT>
Document 2 - file: sesn-form8xkwith1q2022ea001.jpg

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<DOCUMENT>
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<FILENAME>sesn-form8xkwith1q2022ea002.jpg
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<TEXT>
Document 3 - file: sesn-form8xkwith1q2022ea002.jpg

</DOCUMENT>
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<FILENAME>sesn-form8xkwith1q2022ea003.jpg
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Document 4 - file: sesn-form8xkwith1q2022ea003.jpg

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<FILENAME>sesn-form8xkwith1q2022ea004.jpg
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Document 5 - file: sesn-form8xkwith1q2022ea004.jpg

</DOCUMENT>
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<TEXT>
Document 6 - file: sesn-form8xkwith1q2022ea005.jpg

</DOCUMENT>
<DOCUMENT>
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<SEQUENCE>7
<FILENAME>sesn-form8xkwith1q2022ea006.jpg
<TEXT>
Document 7 - file: sesn-form8xkwith1q2022ea006.jpg

</DOCUMENT>
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<FILENAME>sesn-form8xkwith1q2022ea007.jpg
<TEXT>
Document 8 - file: sesn-form8xkwith1q2022ea007.jpg

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<FILENAME>sesn-form8xkwith1q2022ea008.jpg
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Document 9 - file: sesn-form8xkwith1q2022ea008.jpg

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<TEXT>
Document 10 - file: sesn-form8xkwith1q2022ea009.jpg

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<TEXT>
Document 11 - file: sesn-form8xkwith1q2022ea010.jpg

</DOCUMENT>
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<FILENAME>sesn-form8xkwith1q2022ea011.jpg
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<TEXT>
Document 12 - file: sesn-form8xkwith1q2022ea011.jpg

</DOCUMENT>
</SEC-DOCUMENT>