<SEC-DOCUMENT>0001485003-20-000066-index.html : 20200602
<SEC-HEADER>0001485003-20-000066.hdr.sgml : 20200602
<ACCEPTANCE-DATETIME>20200602075615
ACCESSION NUMBER:		0001485003-20-000066
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		71
CONFORMED PERIOD OF REPORT:	20200602
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20200602
DATE AS OF CHANGE:		20200602

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:		20935606

	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>sesnform8-kjefferiesconfer.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: sesnform8-kjefferiesconfer.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.1 <SEQUENCE>2 <FILENAME>exhibit991corporateprese.htm <DESCRIPTION>EXHIBIT 99.1 <TEXT> Document 2 - file: exhibit991corporateprese.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>3 <FILENAME>exhibit991corporateprese001.jpg <TEXT> Document 3 - file: exhibit991corporateprese001.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>4 <FILENAME>exhibit991corporateprese002.jpg <TEXT> Document 4 - file: exhibit991corporateprese002.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>5 <FILENAME>exhibit991corporateprese003.jpg <TEXT> Document 5 - file: exhibit991corporateprese003.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>6 <FILENAME>exhibit991corporateprese004.jpg <TEXT> Document 6 - file: exhibit991corporateprese004.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>7 <FILENAME>exhibit991corporateprese005.jpg <TEXT> Document 7 - file: exhibit991corporateprese005.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>8 <FILENAME>exhibit991corporateprese006.jpg <TEXT> Document 8 - file: exhibit991corporateprese006.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>9 <FILENAME>exhibit991corporateprese007.jpg <TEXT> Document 9 - file: exhibit991corporateprese007.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>10 <FILENAME>exhibit991corporateprese008.jpg <TEXT> Document 10 - file: exhibit991corporateprese008.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>11 <FILENAME>exhibit991corporateprese009.jpg <TEXT> Document 11 - file: exhibit991corporateprese009.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>12 <FILENAME>exhibit991corporateprese010.jpg <TEXT> Document 12 - file: exhibit991corporateprese010.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>13 <FILENAME>exhibit991corporateprese011.jpg <TEXT> Document 13 - file: exhibit991corporateprese011.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>14 <FILENAME>exhibit991corporateprese012.jpg <TEXT> Document 14 - file: exhibit991corporateprese012.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>15 <FILENAME>exhibit991corporateprese013.jpg <TEXT> Document 15 - file: exhibit991corporateprese013.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>16 <FILENAME>exhibit991corporateprese014.jpg <TEXT> Document 16 - file: exhibit991corporateprese014.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>17 <FILENAME>exhibit991corporateprese015.jpg <TEXT> Document 17 - file: exhibit991corporateprese015.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>18 <FILENAME>exhibit991corporateprese016.jpg <TEXT> Document 18 - file: exhibit991corporateprese016.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>19 <FILENAME>exhibit991corporateprese017.jpg <TEXT> Document 19 - file: exhibit991corporateprese017.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>20 <FILENAME>exhibit991corporateprese018.jpg <TEXT> Document 20 - file: exhibit991corporateprese018.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>21 <FILENAME>exhibit991corporateprese019.jpg <TEXT> Document 21 - file: exhibit991corporateprese019.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>22 <FILENAME>exhibit991corporateprese020.jpg <TEXT> Document 22 - file: exhibit991corporateprese020.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>23 <FILENAME>exhibit991corporateprese021.jpg <TEXT> Document 23 - file: exhibit991corporateprese021.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>24 <FILENAME>exhibit991corporateprese022.jpg <TEXT> Document 24 - file: exhibit991corporateprese022.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>25 <FILENAME>exhibit991corporateprese023.jpg <TEXT> Document 25 - file: exhibit991corporateprese023.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>26 <FILENAME>exhibit991corporateprese024.jpg <TEXT> Document 26 - file: exhibit991corporateprese024.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>27 <FILENAME>exhibit991corporateprese025.jpg <TEXT> Document 27 - file: exhibit991corporateprese025.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>28 <FILENAME>exhibit991corporateprese026.jpg <TEXT> Document 28 - file: exhibit991corporateprese026.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>29 <FILENAME>exhibit991corporateprese027.jpg <TEXT> Document 29 - file: exhibit991corporateprese027.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>30 <FILENAME>exhibit991corporateprese028.jpg <TEXT> Document 30 - file: exhibit991corporateprese028.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>31 <FILENAME>exhibit991corporateprese029.jpg <TEXT> Document 31 - file: exhibit991corporateprese029.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>32 <FILENAME>exhibit991corporateprese030.jpg <TEXT> Document 32 - file: exhibit991corporateprese030.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>33 <FILENAME>exhibit991corporateprese031.jpg <TEXT> Document 33 - file: exhibit991corporateprese031.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>34 <FILENAME>exhibit991corporateprese032.jpg <TEXT> Document 34 - file: exhibit991corporateprese032.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>35 <FILENAME>exhibit991corporateprese033.jpg <TEXT> Document 35 - file: exhibit991corporateprese033.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>36 <FILENAME>exhibit991corporateprese034.jpg <TEXT> Document 36 - file: exhibit991corporateprese034.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>37 <FILENAME>exhibit991corporateprese035.jpg <TEXT> Document 37 - file: exhibit991corporateprese035.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>38 <FILENAME>exhibit991corporateprese036.jpg <TEXT> Document 38 - file: exhibit991corporateprese036.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>39 <FILENAME>exhibit991corporateprese037.jpg <TEXT> Document 39 - file: exhibit991corporateprese037.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>40 <FILENAME>exhibit991corporateprese038.jpg <TEXT> Document 40 - file: exhibit991corporateprese038.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>41 <FILENAME>exhibit991corporateprese039.jpg <TEXT> Document 41 - file: exhibit991corporateprese039.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>42 <FILENAME>exhibit991corporateprese040.jpg <TEXT> Document 42 - file: exhibit991corporateprese040.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>43 <FILENAME>exhibit991corporateprese041.jpg <TEXT> Document 43 - file: exhibit991corporateprese041.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>44 <FILENAME>exhibit991corporateprese042.jpg <TEXT> Document 44 - file: exhibit991corporateprese042.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>45 <FILENAME>exhibit991corporateprese043.jpg <TEXT> Document 45 - file: exhibit991corporateprese043.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>46 <FILENAME>exhibit991corporateprese044.jpg <TEXT> Document 46 - file: exhibit991corporateprese044.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>47 <FILENAME>exhibit991corporateprese045.jpg <TEXT> Document 47 - file: exhibit991corporateprese045.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>48 <FILENAME>exhibit991corporateprese046.jpg <TEXT> Document 48 - file: exhibit991corporateprese046.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>49 <FILENAME>exhibit991corporateprese047.jpg <TEXT> Document 49 - file: exhibit991corporateprese047.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>50 <FILENAME>exhibit991corporateprese048.jpg <TEXT> Document 50 - file: exhibit991corporateprese048.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>51 <FILENAME>exhibit991corporateprese049.jpg <TEXT> Document 51 - file: exhibit991corporateprese049.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>52 <FILENAME>exhibit991corporateprese050.jpg <TEXT> Document 52 - file: exhibit991corporateprese050.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>53 <FILENAME>exhibit991corporateprese051.jpg <TEXT> Document 53 - file: exhibit991corporateprese051.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>54 <FILENAME>exhibit991corporateprese052.jpg <TEXT> Document 54 - file: exhibit991corporateprese052.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>55 <FILENAME>exhibit991corporateprese053.jpg <TEXT> Document 55 - file: exhibit991corporateprese053.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>56 <FILENAME>exhibit991corporateprese054.jpg <TEXT> Document 56 - file: exhibit991corporateprese054.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>57 <FILENAME>exhibit991corporateprese055.jpg <TEXT> Document 57 - file: exhibit991corporateprese055.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>58 <FILENAME>exhibit991corporateprese056.jpg <TEXT> Document 58 - file: exhibit991corporateprese056.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>59 <FILENAME>exhibit991corporateprese057.jpg <TEXT> Document 59 - file: exhibit991corporateprese057.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>60 <FILENAME>exhibit991corporateprese058.jpg <TEXT> Document 60 - file: exhibit991corporateprese058.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>61 <FILENAME>exhibit991corporateprese059.jpg <TEXT> Document 61 - file: exhibit991corporateprese059.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>62 <FILENAME>exhibit991corporateprese060.jpg <TEXT> Document 62 - file: exhibit991corporateprese060.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>63 <FILENAME>exhibit991corporateprese061.jpg <TEXT> Document 63 - file: exhibit991corporateprese061.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>64 <FILENAME>exhibit991corporateprese062.jpg <TEXT> Document 64 - file: exhibit991corporateprese062.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>65 <FILENAME>exhibit991corporateprese063.jpg <TEXT> Document 65 - file: exhibit991corporateprese063.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>66 <FILENAME>exhibit991corporateprese064.jpg <TEXT> Document 66 - file: exhibit991corporateprese064.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>67 <FILENAME>exhibit991corporateprese065.jpg <TEXT> Document 67 - file: exhibit991corporateprese065.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>68 <FILENAME>exhibit991corporateprese066.jpg <TEXT> Document 68 - file: exhibit991corporateprese066.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>69 <FILENAME>exhibit991corporateprese067.jpg <TEXT> Document 69 - file: exhibit991corporateprese067.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>70 <FILENAME>exhibit991corporateprese068.jpg <TEXT> Document 70 - file: exhibit991corporateprese068.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>71 <FILENAME>exhibit991corporateprese069.jpg <TEXT> Document 71 - file: exhibit991corporateprese069.jpg
</DOCUMENT> </SEC-DOCUMENT>