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 |
|---|---|---|---|
| NPORT-P | Filing | Sep 29, 2026 | Jul 31, 2026 |
| 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 |
| N-PX | Filing | Aug 28, 2026 | Jun 30, 2026 |
| NPORT-P/A | Filing | Aug 27, 2026 | Apr 30, 2024 |
| 4 | Insider transaction | Aug 26, 2026 | Aug 24, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 28, 2026 | — |
| N-23C-2 | Filing | Jul 24, 2026 | Jul 24, 2026 |
| N-CSRS | Filing | Jul 2, 2026 | Apr 30, 2026 |
| 40-17G | Filing | Jun 29, 2026 | — |
| NPORT-P | Filing | Jun 26, 2026 | Apr 30, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 14, 2026 | — |
| DEF 14A | Proxy statement | May 11, 2026 | Jun 23, 2026 |
| NPORT-P | Filing | Mar 31, 2026 | Jan 31, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 13, 2026 | — |
| N-CEN | Filing | Jan 13, 2026 | Oct 31, 2025 |
| N-CSR | Filing | Dec 29, 2025 | Oct 31, 2025 |
| NPORT-P | Filing | Dec 23, 2025 | Oct 31, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| NPORT-P | Filing | Sep 29, 2025 | Jul 31, 2025 |
| 40-17G/A | Filing | Sep 16, 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 |
| N-PX | Filing | Aug 27, 2025 | Jun 30, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| 3 | Initial insider ownership | Aug 4, 2025 | Jul 29, 2025 |
| N-CSRS | Filing | Jun 27, 2025 | Apr 30, 2025 |
| NPORT-P | Filing | Jun 27, 2025 | Apr 30, 2025 |
| 40-17G | Filing | Jun 26, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| DEF 14A | Proxy statement | May 12, 2025 | Jun 23, 2025 |
| CORRESP | Letter to the SEC | Apr 25, 2025 | — |
| NPORT-P | Filing | Mar 25, 2025 | Jan 31, 2025 |
| 40-17G/A | Filing | Mar 13, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| 4 | Insider transaction | Jan 31, 2025 | Jan 29, 2025 |
| N-CEN | Filing | Jan 10, 2025 | Oct 31, 2024 |
| 3 | Initial insider ownership | Dec 27, 2024 | Dec 17, 2024 |
| N-CSR | Filing | Dec 27, 2024 | Oct 31, 2024 |
| NPORT-P | Filing | Dec 16, 2024 | Oct 31, 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 |
| NPORT-P | Filing | Sep 30, 2024 | Jul 31, 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 | — |
| N-PX | Filing | Aug 30, 2024 | Jun 30, 2024 |
| N-23C-2 | Filing | Aug 2, 2024 | Aug 2, 2024 |
| NPORT-P | Filing | Jul 1, 2024 | Apr 30, 2024 |
| N-CSRS | Filing | Jun 27, 2024 | Apr 30, 2024 |
| 40-17G | Filing | Jun 20, 2024 | — |
| 8-K |
Current report
Bylaw or fiscal year change
|
May 14, 2024 | May 14, 2024 |
| DEF 14A | Proxy statement | May 14, 2024 | Jun 26, 2024 |
| NPORT-P | Filing | Mar 27, 2024 | Jan 31, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| N-CEN | Filing | Jan 16, 2024 | Oct 31, 2023 |
| N-CSR | Filing | Dec 29, 2023 | Oct 31, 2023 |
| NPORT-P | Filing | Dec 27, 2023 | Oct 31, 2023 |
| 4 | Insider transaction | Dec 6, 2023 | Dec 6, 2023 |
| 424B3 | Prospectus | Oct 2, 2023 | — |
| NPORT-P | Filing | Sep 29, 2023 | Jul 31, 2023 |
| 3 | Initial insider ownership | Sep 28, 2023 | Sep 26, 2023 |
| N-PX | Brd8w2_0001275214_2023 | Aug 28, 2023 | Jun 30, 2023 |
| N-CSRS | Certified semi-annual shareholder report | Jun 28, 2023 | Apr 30, 2023 |
| NPORT-P | Filing | Jun 28, 2023 | Apr 28, 2023 |
| DEF 14A | Proxy statement | May 8, 2023 | Jun 20, 2023 |
| 40-17G | Filing | May 5, 2023 | — |
| NPORT-P | Filing | Mar 31, 2023 | Jan 31, 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 |
| N-CEN | Filing | Jan 17, 2023 | Oct 31, 2022 |
| N-CSR | Annual shareholder report | Dec 28, 2022 | — |
| NPORT-P | Filing | Dec 22, 2022 | Oct 31, 2022 |
| SC 13G | Ownership over 5% (passive) | Oct 5, 2022 | — |
| 424B3 | Prospectus | Oct 3, 2022 | — |
| NPORT-P | Filing | Sep 29, 2022 | Jul 31, 2022 |
| 4 | Insider transaction | Sep 8, 2022 | Sep 6, 2022 |
| 4 | Insider transaction | Sep 7, 2022 | Sep 6, 2022 |
| N-PX | Brd8w2_0001275214_2022 | Aug 22, 2022 | Jun 30, 2022 |
| N-23C-2 | Filing | Aug 5, 2022 | Sep 6, 2022 |
| NPORT-P | Filing | Jun 27, 2022 | Apr 30, 2022 |
| N-CSRS | Certified semi-annual shareholder report | Jun 24, 2022 | Apr 30, 2022 |
| 40-17G | Filing | Jun 15, 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 | — |
| CORRESP | Letter to the SEC | Jun 7, 2022 | — |
| N-CSR/A | Filing | Jun 6, 2022 | Oct 31, 2021 |
| 3 | Initial insider ownership | Jun 2, 2022 | May 24, 2022 |
| SC 13G | Ownership over 5% (passive) | Jun 2, 2022 | — |
| 424B3 | Prospectus | 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 |
| DEF 14A | Proxy statement | May 11, 2022 | Jun 28, 2022 |
| NPORT-P | Filing | Mar 25, 2022 | Jan 31, 2022 |
| 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 | — |
| 424B3 | Prospectus | Jan 19, 2022 | — |
| N-CEN | Filing | Jan 13, 2022 | Oct 31, 2021 |
| 424B3 | Prospectus | Jan 3, 2022 | — |
| N-CSR | Certified annual shareholder report | Dec 29, 2021 | Oct 31, 2021 |
| NPORT-P | Filing | Dec 23, 2021 | Oct 31, 2021 |
| 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 | — |
| 424B3 | Prospectus | Sep 30, 2021 | — |
| NPORT-P | Filing | Sep 28, 2021 | Jul 31, 2021 |
| 424B3 | Prospectus | Aug 27, 2021 | — |
| N-PX | Brd8w2_0001275214_2021 | Aug 27, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Aug 26, 2021 | Aug 23, 2021 |
| 3 | Initial insider ownership | Jul 20, 2021 | Jun 30, 2021 |
| 497 | Filing | Jun 30, 2021 | — |
| NPORT-P | Filing | Jun 28, 2021 | Apr 30, 2021 |
| N-CSRS | Certified semi-annual shareholder report | Jun 25, 2021 | Apr 30, 2021 |
| 40-17G | Filing | Jun 21, 2021 | — |
| DEF 14A | Proxy statement | May 12, 2021 | Jun 29, 2021 |
| 424B5 | Prospectus supplement | May 5, 2021 | — |
| N-2ASR | N-2 | Apr 30, 2021 | — |
| NPORT-P | Filing | Mar 31, 2021 | Jan 31, 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 | — |
| N-CEN | Filing | Jan 12, 2021 | Oct 31, 2020 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Jan 12, 2021 | Jan 12, 2021 |
| N-CSR | Certified annual shareholder report | Dec 30, 2020 | Oct 31, 2020 |
| 4 | Insider transaction | Dec 18, 2020 | Dec 18, 2020 |
| NPORT-P | Filing | Dec 18, 2020 | Oct 31, 2020 |
| NPORT-P | Filing | Sep 29, 2020 | Jul 31, 2020 |
| N-PX | Brd8w2_0001275214_2020 | Aug 27, 2020 | Jun 30, 2020 |
| N-CSRS | Semi-annual shareholder report | Jul 1, 2020 | Apr 30, 2020 |
| NPORT-P | Filing | Jun 26, 2020 | Apr 30, 2020 |
| 40-17G | Filing | Jun 26, 2020 | — |
| DEF 14A | Proxy statement | May 14, 2020 | Jun 29, 2020 |
| 3 | Initial insider ownership | Apr 3, 2020 | Mar 26, 2020 |
| NPORT-P | Filing | Mar 31, 2020 | Jan 31, 2020 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2020 | — |
| N-CEN | Filing | Jan 13, 2020 | Oct 31, 2019 |
| N-CSR | Certified annual shareholder report | Dec 27, 2019 | Oct 31, 2019 |
| NPORT-P | Filing | Dec 27, 2019 | Oct 31, 2019 |
| 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 |
| NPORT-EX | Calamos strategic total return fund | Sep 30, 2019 | Jul 31, 2019 |
| N-PX | Brd8w2_0001275214_2019.txt | Aug 28, 2019 | Jun 30, 2019 |
| 3 | Initial insider ownership | Aug 22, 2019 | Aug 15, 2019 |
| N-CSRS | Semi-annual shareholder report | Jun 25, 2019 | Apr 30, 2019 |
| DEF 14A | Proxy statement | May 24, 2019 | Jul 9, 2019 |
| 40-17G | Filing | May 3, 2019 | — |
| N-CEN/A | Filing | Apr 5, 2019 | Oct 31, 2018 |
| N-Q | Quarterly schedule of portfolio holdings | Mar 7, 2019 | Jan 31, 2019 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2019 | — |
| N-CEN | Filing | Jan 14, 2019 | Oct 31, 2018 |
| N-CSR | Certified annual shareholder report | Dec 24, 2018 | Oct 31, 2018 |
| N-Q | Quarterly schedule of portfolio holdings | Sep 7, 2018 | Jul 31, 2018 |
| 40-17G/A | Filing | Sep 6, 2018 | — |
| N-PX | Brd8w2_0001275214_2018 | Aug 28, 2018 | Jun 30, 2018 |
| 3 | Initial insider ownership | Jul 26, 2018 | Jul 19, 2018 |
| N-CSRS | Semi-annual shareholder report | Jun 21, 2018 | Apr 30, 2018 |
| DEF 14A | Proxy statement | May 14, 2018 | Jun 28, 2018 |
| 40-17G | Filing | May 11, 2018 | — |
| N-Q | Quarterly schedule of portfolio holdings | Mar 8, 2018 | Jan 31, 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 | — |
| N-CSR/A | Amendment to form n-csr | Jan 8, 2018 | Oct 31, 2017 |
| 40-17G/A | Filing | Jan 3, 2018 | — |
| 4 | Insider transaction | Jan 3, 2018 | Jan 2, 2018 |
| N-CSR | Certified annual shareholder report | Dec 28, 2017 | Oct 31, 2017 |
| NSAR-B | Answer file | Dec 28, 2017 | Oct 31, 2017 |
| 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 |
| N-Q | Quarterly schedule of portfolio holdings | Sep 1, 2017 | Jul 31, 2017 |
| N-PX | Brd8w2_0001275214.txt | Aug 28, 2017 | Jun 30, 2017 |
| NSAR-A | Answer file | Jun 26, 2017 | Apr 30, 2017 |
| N-CSRS | Certified semi-annual shareholder report | Jun 23, 2017 | Apr 30, 2017 |
| 40-17G | Filing | May 31, 2017 | — |
| DEF 14A | Proxy statement | May 4, 2017 | Jun 20, 2017 |
| N-Q | Quarterly schedule of portfolio holdings | Mar 3, 2017 | Jan 31, 2017 |
| 4 | Insider transaction | Jan 25, 2017 | Jan 23, 2017 |
Showing 200 filings, the most recent 200. 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.