Calamos Strategic Total Return Fund SEC filings CSQ
Calamos Strategic Total Return Fund has 452 filings in SEC EDGAR's recent list, going back to Jan 7, 2004. The most recent current report (Form 8-K) was filed on May 14, 2024 (bylaw or fiscal year change). The company's fiscal year ends on October 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G | Ownership over 5% (passive) | Sep 11, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Sep 8, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Sep 8, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Sep 8, 2026 | — |
| 3 | Initial insider ownership | Sep 3, 2026 | Aug 26, 2026 |
| 4 | Insider transaction | Aug 26, 2026 | Aug 24, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 28, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 14, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 13, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| 3 | Initial insider ownership | Sep 12, 2025 | Sep 2, 2025 |
| 3/A | Primary document | Sep 9, 2025 | Sep 1, 2025 |
| 3 | Initial insider ownership | Sep 9, 2025 | Sep 1, 2025 |
| 3 | Initial insider ownership | Sep 9, 2025 | Sep 1, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| 3 | Initial insider ownership | Aug 4, 2025 | Jul 29, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| 4 | Insider transaction | Jan 31, 2025 | Jan 29, 2025 |
| 3 | Initial insider ownership | Dec 27, 2024 | Dec 17, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 8, 2024 | — |
| 4 | Insider transaction | Oct 9, 2024 | Sep 6, 2024 |
| 4 | Insider transaction | Sep 10, 2024 | Sep 6, 2024 |
| 3 | Initial insider ownership | Sep 10, 2024 | Sep 9, 2024 |
| SC 13G | Ownership over 5% (passive) | Aug 30, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| 4 | Insider transaction | Dec 6, 2023 | Dec 6, 2023 |
| 3 | Initial insider ownership | Sep 28, 2023 | Sep 26, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 28, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 28, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 16, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 15, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| 3 | Initial insider ownership | Feb 2, 2023 | Sep 30, 2022 |
| SC 13G | Ownership over 5% (passive) | Oct 5, 2022 | — |
| 4 | Insider transaction | Sep 8, 2022 | Sep 6, 2022 |
| 4 | Insider transaction | Sep 7, 2022 | Sep 6, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Jun 10, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jun 10, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Jun 10, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Jun 10, 2022 | — |
| 3 | Initial insider ownership | Jun 2, 2022 | May 24, 2022 |
| SC 13G | Ownership over 5% (passive) | Jun 2, 2022 | — |
| 3 | Initial insider ownership | May 27, 2022 | May 24, 2022 |
| SC 13G | Ownership over 5% (passive) | May 27, 2022 | — |
| 4 | Insider transaction | May 26, 2022 | May 24, 2022 |
| 4 | Insider transaction | May 26, 2022 | Aug 24, 2021 |
| 3 | Initial insider ownership | May 26, 2022 | Sep 6, 2017 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2022 | — |
| 3 | Initial insider ownership | Oct 29, 2021 | Aug 24, 2021 |
| SC 13G | Ownership over 5% (passive) | Oct 29, 2021 | — |
| 3 | Initial insider ownership | Oct 20, 2021 | Aug 24, 2021 |
| SC 13G | Ownership over 5% (passive) | Oct 20, 2021 | — |
| 3 | Initial insider ownership | Jul 20, 2021 | Jun 30, 2021 |
| 4 | Insider transaction | Feb 17, 2021 | Feb 12, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 16, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 16, 2021 | — |
| 4 | Insider transaction | Dec 18, 2020 | Dec 18, 2020 |
| 3 | Initial insider ownership | Apr 3, 2020 | Mar 26, 2020 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2020 | — |
| 3 | Initial insider ownership | Dec 20, 2019 | Dec 16, 2019 |
| 3 | Initial insider ownership | Dec 20, 2019 | Dec 16, 2019 |
| 4 | Insider transaction | Dec 20, 2019 | Dec 19, 2019 |
| 3 | Initial insider ownership | Aug 22, 2019 | Aug 15, 2019 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2019 | — |
| 3 | Initial insider ownership | Jul 26, 2018 | Jul 19, 2018 |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2018 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2018 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2018 | — |
| 4 | Insider transaction | Jan 3, 2018 | Jan 2, 2018 |
| SC 13G | Ownership over 5% (passive) | Oct 12, 2017 | — |
| SC 13G | Ownership over 5% (passive) | Sep 15, 2017 | — |
| 3 | Initial insider ownership | Sep 15, 2017 | Sep 6, 2017 |
| 4 | Insider transaction | Jan 25, 2017 | Jan 23, 2017 |
| 3 | Initial insider ownership | Jul 11, 2016 | Jul 1, 2016 |
| 3 | Initial insider ownership | Jul 11, 2016 | Jul 1, 2016 |
| 4 | Insider transaction | Mar 2, 2016 | Mar 1, 2016 |
| 3 | Initial insider ownership | Sep 1, 2015 | Sep 1, 2015 |
| 3 | Initial insider ownership | Sep 1, 2015 | Sep 1, 2015 |
| 3 | Initial insider ownership | Aug 6, 2015 | Aug 6, 2015 |
| 4 | Insider transaction | Jul 11, 2014 | Jul 10, 2014 |
| 5 | Annual insider ownership | Dec 14, 2012 | Oct 31, 2012 |
| 5 | Annual insider ownership | Dec 14, 2012 | Oct 31, 2012 |
| 5 | Annual insider ownership | Dec 14, 2012 | Oct 31, 2012 |
| 5 | Annual insider ownership | Dec 14, 2012 | Oct 31, 2012 |
| 3 | Initial insider ownership | Sep 20, 2012 | Sep 20, 2012 |
| 5 | Annual insider ownership | Dec 15, 2011 | Oct 31, 2011 |
| 5 | Annual insider ownership | Dec 15, 2011 | Oct 31, 2011 |
| 5 | Annual insider ownership | Dec 15, 2011 | Oct 31, 2011 |
| 5 | Annual insider ownership | Dec 13, 2011 | Oct 31, 2011 |
| 5 | Annual insider ownership | Dec 15, 2010 | Oct 31, 2010 |
| 5 | Annual insider ownership | Dec 15, 2010 | Oct 31, 2010 |
| 5 | Annual insider ownership | Dec 15, 2010 | Oct 31, 2010 |
| 5 | Annual insider ownership | Dec 15, 2010 | Oct 31, 2010 |
| 3 | Initial insider ownership | Jun 11, 2010 | Jun 9, 2010 |
| 5 | Annual insider ownership | Feb 16, 2010 | Dec 31, 2009 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2010 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 5, 2010 | — |
| 4 | Insider transaction | Dec 22, 2009 | Dec 18, 2009 |
| 4/A | Primary document | Dec 22, 2009 | Dec 16, 2009 |
| 4 | Insider transaction | Dec 18, 2009 | Dec 16, 2009 |
| 5 | Annual insider ownership | Dec 15, 2009 | Oct 31, 2009 |
| 5 | Annual insider ownership | Dec 15, 2009 | Oct 31, 2009 |
| 5 | Annual insider ownership | Dec 14, 2009 | Oct 31, 2009 |
| 5 | Annual insider ownership | Dec 14, 2009 | Oct 31, 2009 |
| 4 | Insider transaction | Jul 10, 2009 | Jul 9, 2009 |
| SC 13G/A | Amended ownership over 5% (passive) | Jul 10, 2009 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2009 | — |
| 3 | Initial insider ownership | Feb 10, 2009 | Jan 31, 2009 |
| SC 13G | Ownership over 5% (passive) | Feb 10, 2009 | — |
| 3 | Initial insider ownership | Jan 12, 2009 | Dec 31, 2008 |
| SC 13G | Ownership over 5% (passive) | Jan 12, 2009 | — |
| 5 | Annual insider ownership | Dec 12, 2008 | Oct 31, 2008 |
| 5 | Annual insider ownership | Dec 12, 2008 | Oct 31, 2008 |
| 5 | Annual insider ownership | Dec 12, 2008 | Oct 31, 2008 |
| 5 | Annual insider ownership | Dec 12, 2008 | Oct 31, 2008 |
| 3 | Initial insider ownership | Dec 10, 2008 | Nov 30, 2008 |
| SC 13G | Ownership over 5% (passive) | Dec 9, 2008 | — |
| 3 | Initial insider ownership | Jun 10, 2008 | Jun 4, 2008 |
| 3 | Initial insider ownership | Dec 26, 2007 | Dec 20, 2007 |
| 3 | Initial insider ownership | Dec 26, 2007 | Dec 20, 2007 |
| 5 | Annual insider ownership | Dec 12, 2007 | Oct 31, 2007 |
| 5 | Annual insider ownership | Dec 12, 2007 | Oct 31, 2007 |
| 5 | Annual insider ownership | Dec 12, 2007 | Oct 31, 2007 |
| 5 | Annual insider ownership | Dec 12, 2007 | Oct 31, 2007 |
| 5 | Annual insider ownership | Dec 15, 2006 | Oct 31, 2006 |
| 5 | Annual insider ownership | Dec 15, 2006 | Oct 31, 2006 |
| 5 | Annual insider ownership | Dec 15, 2006 | Oct 31, 2006 |
| 5 | Annual insider ownership | Dec 15, 2006 | Oct 31, 2006 |
| 4 | Insider transaction | Oct 12, 2006 | Oct 11, 2006 |
| 4 | Insider transaction | May 3, 2006 | May 2, 2006 |
| 4 | Insider transaction | Apr 6, 2006 | Apr 6, 2006 |
| 4 | Insider transaction | Apr 6, 2006 | Apr 6, 2006 |
| 4 | Insider transaction | Jan 19, 2006 | Jan 18, 2006 |
| 3 | Initial insider ownership | Jan 13, 2006 | Jan 1, 2006 |
| 4 | Insider transaction | Jan 10, 2006 | Jan 9, 2006 |
| 3 | Initial insider ownership | Nov 14, 2005 | Apr 6, 2005 |
| 3 | Initial insider ownership | Nov 14, 2005 | Jun 30, 2005 |
| 3 | Initial insider ownership | Jul 6, 2005 | Jun 30, 2005 |
| 4 | Insider transaction | Dec 28, 2004 | Dec 27, 2004 |
| 4 | Insider transaction | Dec 28, 2004 | Dec 27, 2004 |
| 4 | Insider transaction | Dec 27, 2004 | Dec 23, 2004 |
| 4 | Insider transaction | Dec 16, 2004 | Dec 15, 2004 |
| 3 | Initial insider ownership | Jun 30, 2004 | Jun 25, 2004 |
| 4 | Insider transaction | May 11, 2004 | May 10, 2004 |
| 4 | Insider transaction | May 11, 2004 | May 10, 2004 |
| 3 | Initial insider ownership | Apr 1, 2004 | Mar 25, 2004 |
| 3 | Initial insider ownership | Mar 26, 2004 | Mar 26, 2004 |
| 3/A | Main document description | Mar 25, 2004 | Mar 25, 2004 |
| 3 | Initial insider ownership | Mar 25, 2004 | Mar 25, 2005 |
| 3 | Initial insider ownership | Mar 25, 2004 | Mar 25, 2004 |
| 3 | Initial insider ownership | Mar 25, 2004 | Mar 25, 2004 |
| 3 | Initial insider ownership | Mar 25, 2004 | Mar 25, 2004 |
| 3 | Initial insider ownership | Mar 25, 2004 | Mar 25, 2004 |
| 3 | Initial insider ownership | Mar 25, 2004 | Mar 25, 2004 |
| 3 | Initial insider ownership | Mar 25, 2004 | Mar 25, 2004 |
| 3 | Initial insider ownership | Mar 25, 2004 | Mar 25, 2004 |
| 3 | Initial insider ownership | Mar 25, 2004 | Mar 25, 2004 |
| 3 | Initial insider ownership | Mar 25, 2004 | Mar 25, 2004 |
| 3 | Initial insider ownership | Mar 25, 2004 | Mar 25, 2004 |
| 3 | Initial insider ownership | Mar 25, 2004 | Mar 25, 2004 |
| 3 | Initial insider ownership | Mar 25, 2004 | Mar 25, 2004 |
| 3 | Initial insider ownership | Mar 25, 2004 | Mar 25, 2004 |
| 3 | Initial insider ownership | Mar 25, 2004 | Mar 25, 2004 |
Showing 171 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Listed as
- CSQ (Nasdaq)
- Fiscal year ends
- October 31
- Headquarters
- Naperville, IL
- SEC CIK
- 1275214
Source: SEC EDGAR filings. This is company-reported data, not investment advice.