<SEC-DOCUMENT>0001104659-25-049485-index.html : 20250515
<SEC-HEADER>0001104659-25-049485.hdr.sgml : 20250515
<ACCEPTANCE-DATETIME>20250515162147
ACCESSION NUMBER:		0001104659-25-049485
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250515
DATE AS OF CHANGE:		20250515

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CALAMOS STRATEGIC TOTAL RETURN FUND
		CENTRAL INDEX KEY:			0001275214
		ORGANIZATION NAME:           	
		EIN:				043785941
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-84333
		FILM NUMBER:		25953703

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Apollo Management Holdings GP, LLC
		CENTRAL INDEX KEY:			0001449433
		ORGANIZATION NAME:           	
		EIN:				208351017
		STATE OF INCORPORATION:			DE

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		9 W. 57TH STREET
		STREET 2:		43RD FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
		BUSINESS PHONE:		212-515-3200

	MAIL ADDRESS:	
		STREET 1:		9 W. 57TH STREET
		STREET 2:		43RD FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13G/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

</DOCUMENT>
</SEC-DOCUMENT>