<SEC-DOCUMENT>0001485003-23-000033-index.html : 20230207 <SEC-HEADER>0001485003-23-000033.hdr.sgml : 20230207 <ACCEPTANCE-DATETIME>20230207163104 ACCESSION NUMBER: 0001485003-23-000033 CONFORMED SUBMISSION TYPE: 425 PUBLIC DOCUMENT COUNT: 4 FILED AS OF DATE: 20230207 DATE AS OF CHANGE: 20230207 SUBJECT COMPANY: 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: 425 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36296 FILM NUMBER: 23595491 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 FILED BY: 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: 425 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>425 <SEQUENCE>1 <FILENAME>sesnformcarismapressreleas.htm <DESCRIPTION>425 <TEXT> Document 1 - file: sesnformcarismapressreleas.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.1 <SEQUENCE>2 <FILENAME>exhibit991_carismaprguey.htm <DESCRIPTION>EX-99.1 <TEXT> Document 2 - file: exhibit991_carismaprguey.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>3 <FILENAME>exhibit991_carismaprguey001.jpg <TEXT> Document 3 - file: exhibit991_carismaprguey001.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>4 <FILENAME>exhibit991_carismaprguey002.jpg <TEXT> Document 4 - file: exhibit991_carismaprguey002.jpg
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