<SEC-DOCUMENT>0001485003-21-000064-index.html : 20210325 <SEC-HEADER>0001485003-21-000064.hdr.sgml : 20210325 <ACCEPTANCE-DATETIME>20210325080133 ACCESSION NUMBER: 0001485003-21-000064 CONFORMED SUBMISSION TYPE: DEFA14A PUBLIC DOCUMENT COUNT: 3 FILED AS OF DATE: 20210325 DATE AS OF CHANGE: 20210325 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: 21770144 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>sesenbiodefa14a.htm <DESCRIPTION>DEFA14A <TEXT> Document 1 - file: sesenbiodefa14a.htm
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</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>3 <FILENAME>keyquestionsforstockhold002.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 3 - file: keyquestionsforstockhold002.jpg
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