Cardio Diagnostics Holdings, Inc. SEC filings CDIO
Cardio Diagnostics Holdings, Inc. has 295 filings in SEC EDGAR's recent list, going back to Jul 20, 2021. Its latest annual report, Form ARS, was filed on Jul 23, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 7, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Sep 18, 2026 (shareholder vote results). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Oct 2, 2026 | Sep 30, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Sep 30, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Sep 30, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Sep 30, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Jan 6, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 6, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 6, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 6, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Sep 30, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Sep 30, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Sep 30, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Sep 30, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Apr 1, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 1, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 1, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 1, 2025 | Mar 31, 2025 |
| 3 | Initial insider ownership | Mar 13, 2025 | Dec 31, 2024 |
| 3 | Initial insider ownership | Feb 5, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Jan 15, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Jan 15, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Oct 10, 2024 | Sep 30, 2024 |
| 4 | Insider transaction | Oct 10, 2024 | Sep 30, 2024 |
| 4 | Insider transaction | Oct 10, 2024 | Sep 30, 2024 |
| 4 | Insider transaction | Oct 10, 2024 | Sep 30, 2024 |
| 4/A | Primary document | Oct 9, 2024 | Sep 6, 2024 |
| 4/A | Primary document | Oct 8, 2024 | Sep 6, 2024 |
| 4/A | Primary document | Oct 7, 2024 | Sep 6, 2024 |
| 4/A | Primary document | Sep 23, 2024 | Sep 6, 2024 |
| 4 | Insider transaction | Sep 10, 2024 | Sep 6, 2024 |
| 4 | Insider transaction | Sep 9, 2024 | Sep 6, 2024 |
| 4 | Insider transaction | Sep 9, 2024 | Sep 6, 2024 |
| 4 | Insider transaction | Jul 2, 2024 | Jun 30, 2024 |
| 4 | Insider transaction | Jul 2, 2024 | Jun 30, 2024 |
| 4 | Insider transaction | Jul 2, 2024 | Jun 30, 2024 |
| 4 | Insider transaction | Jul 2, 2024 | Jun 30, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | May 8, 2024 | — |
| 4 | Insider transaction | Apr 8, 2024 | Mar 31, 2024 |
| 4 | Insider transaction | Apr 8, 2024 | Mar 31, 2024 |
| 4 | Insider transaction | Apr 8, 2024 | Mar 31, 2024 |
| 4 | Insider transaction | Apr 8, 2024 | Mar 31, 2024 |
| 4 | Insider transaction | Feb 21, 2024 | Jan 23, 2024 |
| 4 | Insider transaction | Feb 21, 2024 | Jan 23, 2024 |
| 4 | Insider transaction | Feb 21, 2024 | Jan 23, 2024 |
| 4 | Insider transaction | Feb 21, 2024 | Jan 23, 2024 |
| 4 | Insider transaction | Feb 21, 2024 | Jan 23, 2024 |
| 4 | Insider transaction | Feb 21, 2024 | Jan 23, 2024 |
| 4 | Insider transaction | Feb 21, 2024 | Jan 23, 2024 |
| 4 | Insider transaction | Feb 21, 2024 | Jan 23, 2024 |
| 4 | Insider transaction | Feb 21, 2024 | Jan 23, 2024 |
| 4 | Insider transaction | Feb 21, 2024 | Jan 23, 2024 |
| 4 | Insider transaction | Feb 5, 2024 | Jan 31, 2024 |
| SC 13G | Ownership over 5% (passive) | Feb 2, 2024 | — |
| 3 | Initial insider ownership | Jan 4, 2024 | Dec 18, 2023 |
| 4/A | Primary document | Jan 2, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Jan 2, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Jan 2, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Jan 2, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Jan 2, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Nov 3, 2023 | Oct 31, 2023 |
| 4/A | Primary document | Nov 3, 2023 | Jun 23, 2023 |
| 4 | Insider transaction | Oct 4, 2023 | Jul 31, 2023 |
| 4/A | Primary document | Oct 4, 2023 | Sep 30, 2023 |
| 4/A | Primary document | Oct 4, 2023 | Sep 30, 2023 |
| 4/A | Primary document | Oct 4, 2023 | Sep 30, 2023 |
| 4 | Insider transaction | Oct 3, 2023 | Sep 30, 2023 |
| 4 | Insider transaction | Oct 3, 2023 | Sep 30, 2023 |
| 4 | Insider transaction | Oct 3, 2023 | Sep 30, 2023 |
| 4 | Insider transaction | Sep 8, 2023 | Aug 25, 2023 |
| 4 | Insider transaction | Sep 8, 2023 | Aug 25, 2023 |
| 4 | Insider transaction | Sep 5, 2023 | Aug 24, 2023 |
| 4 | Insider transaction | Jul 5, 2023 | Jun 30, 2023 |
| 4 | Insider transaction | Jul 5, 2023 | Jun 30, 2023 |
| 4 | Insider transaction | Jul 5, 2023 | Jun 30, 2023 |
| 4 | Insider transaction | Jul 5, 2023 | Jun 30, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Jun 28, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jun 28, 2023 | — |
| 4/A | Primary document | Jun 27, 2023 | Jun 23, 2023 |
| 4/A | Primary document | Jun 27, 2023 | Jun 23, 2023 |
| 4 | Insider transaction | Jun 26, 2023 | Jun 23, 2023 |
| 4 | Insider transaction | Jun 26, 2023 | Jun 23, 2023 |
| 4 | Insider transaction | Jun 26, 2023 | Jun 23, 2023 |
| 4 | Insider transaction | Jun 26, 2023 | Jun 23, 2023 |
| 4 | Insider transaction | Jun 26, 2023 | Jun 23, 2023 |
| 4 | Insider transaction | Jun 26, 2023 | Jun 23, 2023 |
| 4 | Insider transaction | Jun 21, 2023 | Jun 19, 2023 |
| 4 | Insider transaction | Jun 21, 2023 | Jun 19, 2023 |
| 4 | Insider transaction | Jun 21, 2023 | Jun 19, 2023 |
| 4 | Insider transaction | Jun 21, 2023 | Jun 19, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 8, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 6, 2023 | — |
| SC 13D | Ownership over 5% (active) | Nov 4, 2022 | — |
| 3 | Initial insider ownership | Nov 4, 2022 | Oct 25, 2022 |
| SC 13D | Ownership over 5% (active) | Nov 3, 2022 | — |
| 3 | Initial insider ownership | Nov 3, 2022 | Oct 25, 2022 |
| 3 | Initial insider ownership | Nov 3, 2022 | Oct 25, 2022 |
| 3 | Initial insider ownership | Nov 3, 2022 | Oct 25, 2022 |
| 3 | Initial insider ownership | Nov 3, 2022 | Oct 25, 2022 |
| 3 | Initial insider ownership | Nov 3, 2022 | Oct 25, 2022 |
| 3 | Initial insider ownership | Nov 3, 2022 | Oct 25, 2022 |
| 3 | Initial insider ownership | Nov 3, 2022 | Oct 25, 2022 |
| 3 | Initial insider ownership | Nov 3, 2022 | Oct 25, 2022 |
| 3 | Initial insider ownership | Nov 3, 2022 | Oct 25, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 28, 2022 | — |
| 4 | Insider transaction | Oct 27, 2022 | Oct 25, 2022 |
| SC 13G | Ownership over 5% (passive) | Feb 11, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 2, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 11, 2022 | — |
| 3 | Initial insider ownership | Dec 14, 2021 | Nov 22, 2021 |
| SC 13D | Ownership over 5% (active) | Dec 3, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Dec 3, 2021 | — |
| 3 | Initial insider ownership | Dec 2, 2021 | Nov 22, 2021 |
| 3 | Initial insider ownership | Dec 2, 2021 | Nov 22, 2021 |
| 4 | Insider transaction | Dec 2, 2021 | Nov 30, 2021 |
| 3 | Initial insider ownership | Dec 2, 2021 | Nov 22, 2021 |
| 3 | Initial insider ownership | Dec 2, 2021 | Nov 22, 2021 |
| SC 13G | Ownership over 5% (passive) | Dec 2, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Nov 30, 2021 | — |
Showing 129 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
- Industry
- In Vitro & In Vivo Diagnostic Substances (SIC 2835)
- Listed as
- CDIO (Nasdaq), CDIOW (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Chicago, IL
- SEC filer status
- , Emerging growth company
- SEC CIK
- 1870144
- Former names
- Mana Capital Acquisition Corp. (until Oct 26, 2022)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.