N-PX: Filer Information

Filer CIK

0001275214

Filer CCC

********

Date of Report

06/30/2025

Are you a Registered Management Investment Company or an Institutional Manager?

Registered Management Investment Company

Filer Investment Company Type

Form N-2 Filer (Closed-End Investment Company)

Is this a LIVE or TEST Filing?

LIVE

TEST

Is this an electronic copy of an official filing submitted in paper format?

Submission Contact Information

Name

Phone Number

E-mail Address

Notification Information

Notify via Filing Website only?

N-PX: Cover Page

Name and address of reporting person:

Name of reporting person (For registered management investment companies, provide exact name of registrant as specified in charter)

CALAMOS STRATEGIC TOTAL RETURN FUND

Street 1

2020 Calamos Court

Street 2

City

Naperville

State/Country

ILLINOIS

Zip code and zip code extension or foreign postal code

60563-2787

Telephone number of reporting person, including area code:

(630) 245-7200

Name and address of agent for service:

Name of agent for service

Erik Ojala

Street 1

Calamos Advisors LLC

Street 2

2020 Calamos Court

City

Naperville

State/Country

ILLINOIS

Zip code and zip code extension or foreign postal code

60563-2787

Reporting Period:

Report for the year ended June 30, 2025

SEC Investment Company Act or Form 13F File Number:

811-21484

CRD Number (if any):

Other SEC File Number (if any):

Legal Entity Identifier (if any):

Report Type (check only one):

Registered Management Investment Company.

Fund Voting Report (Check here if the registered management investment company held one or more securities it was entitled to vote.)

Fund Notice Report (Check here if the registered management investment company did not hold any securities it was entitled to vote.)

Institutional Manager.

Institutional Manager Voting Report (Check here if all proxy votes of this reporting manager are reported in this report.)

Institutional Manager Notice Report (Check here if no proxy votes are reported in this report and complete the notice report filing explanation section below)

Institutional Manager Combination Report (Check here if a portion of the proxy votes for this reporting manager are reported in this report and a portion are reported by other reporting person(s).)

Do you wish to provide explanatory information pursuant to Special Instruction B.4?:

Yes

Additional information:

N-PX: Summary - Included Managers

Number of Included Institutional Managers:

Included Institutional Managers:

NONE

N-PX: Summary - Included Series

Number of Series:

Information about the Series:

NONE

N-PX: Signature Block

Reporting Person:

CALAMOS STRATEGIC TOTAL RETURN FUND

By (Signature):

Kathleen McCarthy

By (Printed Signature):

Kathleen McCarthy

By (Title):

VP, Investment Operations

Date:

08/26/2025

SEC Form N-PX filed by Calamos Strategic Total Return