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SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* Apollo Management Holdings GP, LLC (Last) (First) (Middle) 9 WEST 57TH STREET, 43RD FLOOR (Street) NEW YORK NY 10019 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 05/24/2022	3. Issuer Name and Ticker or Trading Symbol CALAMOS STRATEGIC TOTAL RETURN FUND [ CSQ ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Series F Mandatory Redeemable Preferred Shares	1,760,000	I	See Footnote(1)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

1. Name and Address of Reporting Person* Apollo Management Holdings GP, LLC (Last) (First) (Middle) 9 WEST 57TH STREET, 43RD FLOOR (Street) NEW YORK NY 10019 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Athene Annuity & Life Co (Last) (First) (Middle) 7700 MILLS CIVIC PARKWAY (Street) WEST DES MOINES IA 50266 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Apollo Insurance Solutions Group LP (Last) (First) (Middle) 2121 ROSECRANS AVE STE 5300 (Street) EL SEGUNDO CA 90245 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* AISG GP Ltd. (Last) (First) (Middle) C/O WALKERS CORPORATE LIMITED CAYMAN CORPORATE CENTER, 27 HOSPITAL RD (Street) GEORGE TOWN, GRAND CAYMAN E9 KY1-9008 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Apollo Life Asset L.P. (Last) (First) (Middle) C/O WALKERS CORPORATE LIMITED CAYMAN CORPORATE CENTER, 27 HOSPITAL RD (Street) GEORGE TOWN, GRAND CAYMAN E9 KY1-9008 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Apollo Life Asset GP, LLC (Last) (First) (Middle) C/O WALKERS CORPORATE LIMITED CAYMAN CORPORATE CENTER, 27 HOSPITAL RD (Street) GEORGE TOWN, GRAND CAYMAN E9 KY1-9008 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Apollo Capital Management, L.P. (Last) (First) (Middle) 9 WEST 57TH STREET (Street) NEW YORK NY 10019 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Apollo Capital Management GP, LLC (Last) (First) (Middle) 9 WEST 57TH STREET (Street) NEW YORK NY 10019 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Apollo Management Holdings, L.P. (Last) (First) (Middle) 9 W. 57TH STREET (Street) NEW YORK NY 10019 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. See Exhibit 99.1.

	See Exhibit 99.2	06/02/2022
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.