<SEC-DOCUMENT>0001104659-20-136829-index.html : 20201217 <SEC-HEADER>0001104659-20-136829.hdr.sgml : 20201217 <ACCEPTANCE-DATETIME>20201217160230 ACCESSION NUMBER: 0001104659-20-136829 CONFORMED SUBMISSION TYPE: 497 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20201217 DATE AS OF CHANGE: 20201217 EFFECTIVENESS DATE: 20201217 FILER: COMPANY DATA: COMPANY CONFORMED NAME: CALAMOS GLOBAL TOTAL RETURN FUND CENTRAL INDEX KEY: 0001285650 IRS NUMBER: 203377281 FISCAL YEAR END: 1031 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 333-224205 FILM NUMBER: 201396102 BUSINESS ADDRESS: STREET 1: 2020 CALAMOS COURT STREET 2: C/O CALAMOS ADVISORS LLC CITY: NAPERVILLE STATE: IL ZIP: 60563 BUSINESS PHONE: 6302451046 MAIL ADDRESS: STREET 1: 2020 CALAMOS COURT STREET 2: C/O CALAMOS ADVISORS LLC CITY: NAPERVILLE STATE: IL ZIP: 60563 </SEC-HEADER> <DOCUMENT> <TYPE>497 <SEQUENCE>1 <FILENAME>a20-38699_4497.htm <DESCRIPTION>497 <TEXT> Document 1 - file: a20-38699_4497.htm
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