<SEC-DOCUMENT>0001104659-21-063500-index.html : 20210510 <SEC-HEADER>0001104659-21-063500.hdr.sgml : 20210510 <ACCEPTANCE-DATETIME>20210510084438 ACCESSION NUMBER: 0001104659-21-063500 CONFORMED SUBMISSION TYPE: S-3 PUBLIC DOCUMENT COUNT: 5 FILED AS OF DATE: 20210510 DATE AS OF CHANGE: 20210510 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: S-3 SEC ACT: 1933 Act SEC FILE NUMBER: 333-255943 FILM NUMBER: 21905395 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>S-3 <SEQUENCE>1 <FILENAME>tm2115524d1_s3.htm <DESCRIPTION>FORM S-3 <TEXT> Document 1 - file: tm2115524d1_s3.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-5.1 <SEQUENCE>2 <FILENAME>tm2115524d1_ex5-1.htm <DESCRIPTION>EXHIBIT 5.1 <TEXT> Document 2 - file: tm2115524d1_ex5-1.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-23.1 <SEQUENCE>3 <FILENAME>tm2115524d1_ex23-1.htm <DESCRIPTION>EXHIBIT 23.1 <TEXT> Document 3 - file: tm2115524d1_ex23-1.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>4 <FILENAME>tm2115524d1_ex5-1img001.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 4 - file: tm2115524d1_ex5-1img001.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>5 <FILENAME>tm2115524d1_s3-img001.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 5 - file: tm2115524d1_s3-img001.jpg
</DOCUMENT> </SEC-DOCUMENT>