Calamos Strategic Total Return Fund (CSQ) SEC Filings & 10K Form $18.44 +0.21 (+1.15%) Closing price 07/3/2025 01:04 PM EasternExtended Trading$18.44 0.00 (0.00%) As of 07/3/2025 04:23 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share SEC Filings Stock AnalysisChartCompetitorsDividendHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Recent Calamos Strategic Total Return Fund SEC Filings All Filing Types 1 10 10-D 10-K 10-M 10-Q 11-K 12b-25 13F 13H 144 15 15F 17-H 18 18-K 19b-4(e) 19b-4 19b-7 1-A 1-E 1-K 1-N 1-SA 1-U 1-Z 20-F 24F-2 25 2-E 3 4 40-F 5 6-K 7-M 8-A 8-K 8-M 9-M ABS DD-15E ABS-15G ABS-EE ADV ADV-E ADV-H ADV-NR ADV-W ATS ATS-R BD BD-N BDW C CA-1 CB CFPORTAL D F-1 F-10 F-3 F-4 F-6 F-7 F-8 F-80 F-N F-X ID MA MA-I MA-NR MA-W MSD MSDW n/a N-14 N-17D-1 N-17f-1 N-17f-2 N-18f-1 N-1A N-2 N-23c-3 N-27D-1 N-3 N-4 N-5 N-54A N-54C N-6 N-6EI-1 N-6F N-8A N-8B-2 N-8B-4 N-8F N-CR N-CSR N-MFP N-PX N-Q NRSRO N-SAR PF PILOT R31 S-1 S-11 S-20 S-3 S-4 S-6 S-8 SBSE SBSE-A SBSE-BD SBSE-C SBSE-W SCI SD SDR SE SF-1 SF-3 SIP T-1 T-2 T-3 T-4 T-6 TA-1 TA-2 TA-W TCR TH WB-APP X-17A-19 X-17A-5 Part I X-17A-5 Part II X-17A-5 Part IIA X-17A-5 Part IIB X-17A-5 Part III X-17A-5 Schedule I X-17F-1A Filing Types Include Ownership Filings Exclude Ownership Filings Only Show Ownership FIlings Ownership Filings Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 2 Years 3 Years Time Frame Start Date End Date Export to Excel DateFilerForm TypeView06/27/202511:16 AMCalamos Strategic Total Return Fund (Filer)Form N-CSRS06/27/202510:40 AMCalamos Strategic Total Return Fund (Filer)Form NPORT-PMonthly Portfolio Investments Report on Form NPORT06/26/20259:54 AMCALAMOS ADVISORS TRUST/IL (Filer)Calamos Antetokounmpo Sustainable Equities Trust (Filer)CALAMOS CONVERTIBLE & HIGH INCOME FUND (Filer)CALAMOS CONVERTIBLE OPPORTUNITIES & INCOME FUND (Filer)Calamos Dynamic Convertible & Income Fund (Filer)Calamos ETF Trust (Filer)Calamos Global Dynamic Income Fund (Filer)CALAMOS GLOBAL TOTAL RETURN FUND (Filer)CALAMOS INVESTMENT TRUST/IL (Filer)Calamos Long/Short Equity & Dynamic Income Trust (Filer)Calamos Strategic Total Return Fund (Filer)Form 40-17G03/25/20251:45 PMCalamos Strategic Total Return Fund (Filer)Form NPORT-PMonthly Portfolio Investments Report on Form NPORT03/13/20259:15 AMCALAMOS ADVISORS TRUST/IL (Filer)Calamos Antetokounmpo Sustainable Equities Trust (Filer)CALAMOS CONVERTIBLE & HIGH INCOME FUND (Filer)CALAMOS CONVERTIBLE OPPORTUNITIES & INCOME FUND (Filer)Calamos Dynamic Convertible & Income Fund (Filer)Calamos ETF Trust (Filer)Calamos Global Dynamic Income Fund (Filer)CALAMOS GLOBAL TOTAL RETURN FUND (Filer)CALAMOS INVESTMENT TRUST/IL (Filer)Calamos Long/Short Equity & Dynamic Income Trust (Filer)Calamos Strategic Total Return Fund (Filer)Form 40-17G/A01/31/202511:27 AMCalamos Strategic Total Return Fund (Issuer)Herman Thomas E (Reporting)Form 4Statement of changes in beneficial ownership of securities 01/10/20252:50 PMCalamos Strategic Total Return Fund (Filer)Form N-CENAnnual Report for Registered Investment Companies 12/27/20244:35 PMCalamos Strategic Total Return Fund (Issuer)Kiley Thomas P III (Reporting)Form 3Initial statement of beneficial ownership of securities 12/27/20242:32 PMCalamos Strategic Total Return Fund (Filer)Form N-CSRCertified shareholder report of registered management investment companies 12/16/202412:53 PMCalamos Strategic Total Return Fund (Filer)Form NPORT-PMonthly Portfolio Investments Report on Form NPORT11/14/20243:56 PMApollo Management Holdings GP, LLC (Filed by)Calamos Strategic Total Return Fund (Subject)Form SC 13G/A11/12/20242:50 PMCalamos Strategic Total Return Fund (Subject)THRIVENT FINANCIAL FOR LUTHERANS (Filed by)Form SCHEDULE 13G/A11/08/20243:44 PMCalamos Strategic Total Return Fund (Subject)MetLife Investment Management, LLC (Filed by)Form SC 13G/A10/09/20243:44 PMCalamos Strategic Total Return Fund (Issuer)THRIVENT FINANCIAL FOR LUTHERANS (Reporting)Form 4Statement of changes in beneficial ownership of securities 09/30/202410:25 AMCalamos Strategic Total Return Fund (Filer)Form NPORT-PMonthly Portfolio Investments Report on Form NPORT09/10/202410:53 AMCalamos Strategic Total Return Fund (Issuer)NORTHWESTERN MUTUAL LIFE INSURANCE CO (Reporting)Form 3Initial statement of beneficial ownership of securities 08/30/20245:06 AMCalamos Strategic Total Return Fund (Subject)NORTHWESTERN MUTUAL LIFE INSURANCE CO (Filed by)Form SC 13G(Data available from 1/1/2016 forward) Related Companies and Tools Related Companies AWP 10K Form THQ 10K Form THW 10K Form AVK 10K Form AFB 10K Form ARDC 10K Form BFZ 10K Form BHK 10K Form BTZ 10K Form BGR 10K Form SEC Filings Tools Latest SEC FilingsInsider Trading Activity This page (NASDAQ:CSQ) was last updated on 7/4/2025 by MarketBeat.com Staff From Our PartnersElon’s RevengeElon Musk and President Trump's new feud is all over the news... 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