<SEC-DOCUMENT>0001485003-19-000031-index.html : 20190513
<SEC-HEADER>0001485003-19-000031.hdr.sgml : 20190513
<ACCEPTANCE-DATETIME>20190513070217
ACCESSION NUMBER:		0001485003-19-000031
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		56
CONFORMED PERIOD OF REPORT:	20190513
ITEM INFORMATION:		Results of Operations and Financial Condition
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20190513
DATE AS OF CHANGE:		20190513

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:		19816876

	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>8-K
<SEQUENCE>1
<FILENAME>sesn-form8xkx1q2019earning.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: sesn-form8xkx1q2019earning.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.1 <SEQUENCE>2 <FILENAME>sesenbio1q2019pressrelea.htm <DESCRIPTION>EXHIBIT 99.1 <TEXT> Document 2 - file: sesenbio1q2019pressrelea.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99..2 <SEQUENCE>3 <FILENAME>sesnbusinessupdatemay201.htm <DESCRIPTION>EXHIBIT 99..2 <TEXT> Document 3 - file: sesnbusinessupdatemay201.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>4 <FILENAME>sesenbio1q2019pressrelea001.jpg <TEXT> Document 4 - file: sesenbio1q2019pressrelea001.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>5 <FILENAME>sesenbio1q2019pressrelea002.jpg <TEXT> Document 5 - file: sesenbio1q2019pressrelea002.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>6 <FILENAME>sesenbio1q2019pressrelea003.jpg <TEXT> Document 6 - file: sesenbio1q2019pressrelea003.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>7 <FILENAME>sesenbio1q2019pressrelea004.jpg <TEXT> Document 7 - file: sesenbio1q2019pressrelea004.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>8 <FILENAME>sesenbio1q2019pressrelea005.jpg <TEXT> Document 8 - file: sesenbio1q2019pressrelea005.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>9 <FILENAME>sesenbio1q2019pressrelea006.jpg <TEXT> Document 9 - file: sesenbio1q2019pressrelea006.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>10 <FILENAME>sesenbio1q2019pressrelea007.jpg <TEXT> Document 10 - file: sesenbio1q2019pressrelea007.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>11 <FILENAME>sesenbio1q2019pressrelea008.jpg <TEXT> Document 11 - file: sesenbio1q2019pressrelea008.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>12 <FILENAME>sesnbusinessupdatemay201001.jpg <TEXT> Document 12 - file: sesnbusinessupdatemay201001.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>13 <FILENAME>sesnbusinessupdatemay201002.jpg <TEXT> Document 13 - file: sesnbusinessupdatemay201002.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>14 <FILENAME>sesnbusinessupdatemay201003.jpg <TEXT> Document 14 - file: sesnbusinessupdatemay201003.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>15 <FILENAME>sesnbusinessupdatemay201004.jpg <TEXT> Document 15 - file: sesnbusinessupdatemay201004.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>16 <FILENAME>sesnbusinessupdatemay201005.jpg <TEXT> Document 16 - file: sesnbusinessupdatemay201005.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>17 <FILENAME>sesnbusinessupdatemay201006.jpg <TEXT> Document 17 - file: sesnbusinessupdatemay201006.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>18 <FILENAME>sesnbusinessupdatemay201007.jpg <TEXT> Document 18 - file: sesnbusinessupdatemay201007.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>19 <FILENAME>sesnbusinessupdatemay201008.jpg <TEXT> Document 19 - file: sesnbusinessupdatemay201008.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>20 <FILENAME>sesnbusinessupdatemay201009.jpg <TEXT> Document 20 - file: sesnbusinessupdatemay201009.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>21 <FILENAME>sesnbusinessupdatemay201010.jpg <TEXT> Document 21 - file: sesnbusinessupdatemay201010.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>22 <FILENAME>sesnbusinessupdatemay201011.jpg <TEXT> Document 22 - file: sesnbusinessupdatemay201011.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>23 <FILENAME>sesnbusinessupdatemay201012.jpg <TEXT> Document 23 - file: sesnbusinessupdatemay201012.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>24 <FILENAME>sesnbusinessupdatemay201013.jpg <TEXT> Document 24 - file: sesnbusinessupdatemay201013.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>25 <FILENAME>sesnbusinessupdatemay201014.jpg <TEXT> Document 25 - file: sesnbusinessupdatemay201014.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>26 <FILENAME>sesnbusinessupdatemay201015.jpg <TEXT> Document 26 - file: sesnbusinessupdatemay201015.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>27 <FILENAME>sesnbusinessupdatemay201016.jpg <TEXT> Document 27 - file: sesnbusinessupdatemay201016.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>28 <FILENAME>sesnbusinessupdatemay201017.jpg <TEXT> Document 28 - file: sesnbusinessupdatemay201017.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>29 <FILENAME>sesnbusinessupdatemay201018.jpg <TEXT> Document 29 - file: sesnbusinessupdatemay201018.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>30 <FILENAME>sesnbusinessupdatemay201019.jpg <TEXT> Document 30 - file: sesnbusinessupdatemay201019.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>31 <FILENAME>sesnbusinessupdatemay201020.jpg <TEXT> Document 31 - file: sesnbusinessupdatemay201020.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>32 <FILENAME>sesnbusinessupdatemay201021.jpg <TEXT> Document 32 - file: sesnbusinessupdatemay201021.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>33 <FILENAME>sesnbusinessupdatemay201022.jpg <TEXT> Document 33 - file: sesnbusinessupdatemay201022.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>34 <FILENAME>sesnbusinessupdatemay201023.jpg <TEXT> Document 34 - file: sesnbusinessupdatemay201023.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>35 <FILENAME>sesnbusinessupdatemay201024.jpg <TEXT> Document 35 - file: sesnbusinessupdatemay201024.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>36 <FILENAME>sesnbusinessupdatemay201025.jpg <TEXT> Document 36 - file: sesnbusinessupdatemay201025.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>37 <FILENAME>sesnbusinessupdatemay201026.jpg <TEXT> Document 37 - file: sesnbusinessupdatemay201026.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>38 <FILENAME>sesnbusinessupdatemay201027.jpg <TEXT> Document 38 - file: sesnbusinessupdatemay201027.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>39 <FILENAME>sesnbusinessupdatemay201028.jpg <TEXT> Document 39 - file: sesnbusinessupdatemay201028.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>40 <FILENAME>sesnbusinessupdatemay201029.jpg <TEXT> Document 40 - file: sesnbusinessupdatemay201029.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>41 <FILENAME>sesnbusinessupdatemay201030.jpg <TEXT> Document 41 - file: sesnbusinessupdatemay201030.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>42 <FILENAME>sesnbusinessupdatemay201031.jpg <TEXT> Document 42 - file: sesnbusinessupdatemay201031.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>43 <FILENAME>sesnbusinessupdatemay201032.jpg <TEXT> Document 43 - file: sesnbusinessupdatemay201032.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>44 <FILENAME>sesnbusinessupdatemay201033.jpg <TEXT> Document 44 - file: sesnbusinessupdatemay201033.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>45 <FILENAME>sesnbusinessupdatemay201034.jpg <TEXT> Document 45 - file: sesnbusinessupdatemay201034.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>46 <FILENAME>sesnbusinessupdatemay201035.jpg <TEXT> Document 46 - file: sesnbusinessupdatemay201035.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>47 <FILENAME>sesnbusinessupdatemay201036.jpg <TEXT> Document 47 - file: sesnbusinessupdatemay201036.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>48 <FILENAME>sesnbusinessupdatemay201037.jpg <TEXT> Document 48 - file: sesnbusinessupdatemay201037.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>49 <FILENAME>sesnbusinessupdatemay201038.jpg <TEXT> Document 49 - file: sesnbusinessupdatemay201038.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>50 <FILENAME>sesnbusinessupdatemay201039.jpg <TEXT> Document 50 - file: sesnbusinessupdatemay201039.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>51 <FILENAME>sesnbusinessupdatemay201040.jpg <TEXT> Document 51 - file: sesnbusinessupdatemay201040.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>52 <FILENAME>sesnbusinessupdatemay201041.jpg <TEXT> Document 52 - file: sesnbusinessupdatemay201041.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>53 <FILENAME>sesnbusinessupdatemay201042.jpg <TEXT> Document 53 - file: sesnbusinessupdatemay201042.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>54 <FILENAME>sesnbusinessupdatemay201043.jpg <TEXT> Document 54 - file: sesnbusinessupdatemay201043.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>55 <FILENAME>sesnbusinessupdatemay201044.jpg <TEXT> Document 55 - file: sesnbusinessupdatemay201044.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>56 <FILENAME>sesnbusinessupdatemay201045.jpg <TEXT> Document 56 - file: sesnbusinessupdatemay201045.jpg
</DOCUMENT> </SEC-DOCUMENT>