CALAMOS INVESTMENT TRUST/IL

Overview

• HeadquartersDE¹

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Corporate structure

CALAMOS INVESTMENT TRUST/IL sits at the top of its group. 42 entities, 4 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

Built from major holders from Schedules 13D and 13G; stakes of 5% or more it reported on Schedules 13D and 13G (41 companies). Each entity in the chart links to its source.

Filings

636 filings to the SEC since October 2021: 2 large holders, 634 other. The latest 20:

1. Oct 8, 2026497 EDGAR
2. Sep 29, 2026NPORT-P EDGAR
3. Sep 29, 2026NPORT-P EDGAR
4. Sep 29, 2026NPORT-P EDGAR
5. Sep 29, 2026NPORT-P EDGAR
6. Sep 29, 2026NPORT-P EDGAR
7. Sep 29, 2026NPORT-P EDGAR
8. Sep 29, 2026NPORT-P EDGAR
9. Sep 29, 2026NPORT-P EDGAR
10. Sep 29, 2026NPORT-P EDGAR
11. Sep 29, 2026NPORT-P EDGAR
12. Sep 29, 2026NPORT-P EDGAR
13. Sep 29, 2026NPORT-P EDGAR
14. Sep 29, 2026NPORT-P EDGAR
15. Sep 29, 2026NPORT-P EDGAR
16. Sep 29, 2026NPORT-P EDGAR
17. Sep 29, 2026NPORT-P EDGAR
18. Sep 29, 2026NPORT-P EDGAR
19. Sep 29, 2026NPORT-P EDGAR
20. Sep 29, 2026NPORT-P EDGAR

Every filing from the last five years, summarized. The full record is on SEC EDGAR.

Major holders

Investors who own more than 5% of the shares must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively.

• New Providence Acquisition Corp. IIISC 13G, 2 filings Feb 8, 2022 to Feb 14, 2024²

Stakes it holds

CALAMOS INVESTMENT TRUST/IL has told the SEC it owns more than 5% of 41 companies, latest first (Schedules 13D and 13G).

• Everest Consolidator Acquisition CorpSCHEDULE 13G/A Feb 8, 2022 to Oct 9, 2026³
• SilverBox Corp IVSCHEDULE 13G Oct 9, 2026⁴
• Four Leaf Acquisition CorpSCHEDULE 13G/A Oct 7, 2024 to Sep 2, 2025⁵
• FutureTech II Acquisition Corp.SCHEDULE 13G/A Feb 14, 2024 to May 2, 2025⁶
• Evergreen CorpSCHEDULE 13G/A Feb 14, 2024 to Apr 4, 2025⁷
• Cartesian Growth Corp IISCHEDULE 13G/A Feb 9, 2023 to Feb 12, 2025⁸
• Generation Asia I Acquisition LtdSCHEDULE 13G/A Feb 14, 2024 to Feb 12, 2025⁹
• Learn CW Investment CorpSCHEDULE 13G/A Feb 14, 2024 to Feb 12, 2025¹⁰
• Chenghe Acquisition Co.SC 13G/A Feb 9, 2023 to Oct 7, 2024¹¹
• Rigel Resource Acquisition Corp.SC 13G/A Feb 8, 2022 to Oct 7, 2024¹²
• Semnur Pharmaceuticals, Inc.SC 13G/A Feb 14, 2024 to Oct 7, 2024¹³
• Tristar Acquisition I Corp.SC 13G/A Feb 14, 2024 to Oct 7, 2024¹⁴
• 7 Acquisition CorpSC 13G Feb 8, 2022 to Feb 14, 2024¹⁵
• ALSP Orchid Acquisition Corp ISC 13G Feb 8, 2022 to Feb 14, 2024¹⁶
• APx Acquisition Corp. ISC 13G Feb 8, 2022 to Feb 14, 2024¹⁷
• AltEnergy Acquisition CorpSC 13G Feb 8, 2022 to Feb 14, 2024¹⁸
• Apeiron Capital Investment Corp.SC 13G Feb 8, 2022 to Feb 14, 2024¹⁹
• Blue Ocean Acquisition CorpSC 13G Feb 8, 2022 to Feb 14, 2024²⁰
• Cactus Acquisition Corp. 1 LtdSC 13G Feb 8, 2022 to Feb 14, 2024²¹
• Chain Bridge ISC 13G Feb 8, 2022 to Feb 14, 2024²²
• Crescera Capital Acquisition Corp.SC 13G Feb 8, 2022 to Feb 14, 2024²³
• DP Cap Acquisition Corp ISC 13G Feb 8, 2022 to Feb 14, 2024²⁴
• Forbion European Acquisition Corp.SC 13G Feb 8, 2022 to Feb 14, 2024²⁵
• Games & Esports Experience Acquisition Corp.SC 13G Feb 8, 2022 to Feb 14, 2024²⁶
• Heartland Media Acquisition Corp.SC 13G Feb 9, 2023 to Feb 14, 2024²⁷
• Infinite Acquisition Corp.SC 13G Feb 8, 2022 to Feb 14, 2024²⁸
• Intelligent Medicine Acquisition Corp.SC 13G Feb 8, 2022 to Feb 14, 2024²⁹
• LAMF Global Ventures Corp. ISC 13G Feb 8, 2022 to Feb 14, 2024³⁰
• Mountain & Co. I Acquisition Corp.SC 13G Feb 8, 2022 to Feb 14, 2024³¹
• Onyx Acquisition Co. ISC 13G Feb 8, 2022 to Feb 14, 2024³²