<SEC-DOCUMENT>0001193125-23-040537-index.html : 20230216 <SEC-HEADER>0001193125-23-040537.hdr.sgml : 20230216 <ACCEPTANCE-DATETIME>20230215214552 ACCESSION NUMBER: 0001193125-23-040537 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20230216 DATE AS OF CHANGE: 20230215 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: CALAMOS STRATEGIC TOTAL RETURN FUND CENTRAL INDEX KEY: 0001275214 IRS NUMBER: 043785941 FISCAL YEAR END: 1031 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-84333 FILM NUMBER: 23636996 BUSINESS ADDRESS: STREET 1: 2020 CALAMOS COURT STREET 2: C/O CALAMOS ADVISORS LLC CITY: NAPERVILLE STATE: IL ZIP: 60653 BUSINESS PHONE: 6302451046 MAIL ADDRESS: STREET 1: 2020 CALAMOS COURT STREET 2: C/O CALAMOS ADVISORS LLC CITY: NAPERVILLE STATE: IL ZIP: 60653 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: GUARDIAN LIFE INSURANCE CO OF AMERICA CENTRAL INDEX KEY: 0000901849 IRS NUMBER: 061116976 STATE OF INCORPORATION: NY FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: 10 HUDSON YARDS CITY: NEW YORK STATE: NY ZIP: 10001 BUSINESS PHONE: 212.919.8734 MAIL ADDRESS: STREET 1: 10 HUDSON YARDS CITY: NY STATE: NY ZIP: 10001 </SEC-HEADER> <DOCUMENT> <TYPE>SC 13G/A <SEQUENCE>1 <FILENAME>d461490dsc13ga.htm <DESCRIPTION>SC 13G/A <TEXT> Document 1 - file: d461490dsc13ga.htm
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