<SEC-DOCUMENT>0001104659-21-074619-index.html : 20210601 <SEC-HEADER>0001104659-21-074619.hdr.sgml : 20210601 <ACCEPTANCE-DATETIME>20210601074546 ACCESSION NUMBER: 0001104659-21-074619 CONFORMED SUBMISSION TYPE: 424B5 PUBLIC DOCUMENT COUNT: 5 FILED AS OF DATE: 20210601 DATE AS OF CHANGE: 20210601 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: 424B5 SEC ACT: 1933 Act SEC FILE NUMBER: 333-255943 FILM NUMBER: 21983045 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>424B5 <SEQUENCE>1 <FILENAME>tm2115524d4_424b5.htm <DESCRIPTION>424B5 <TEXT> Document 1 - file: tm2115524d4_424b5.htm
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