Cardio Diagnostics Holdings, Inc. SEC filings CDIOW
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 |
| 8-K |
Current report
Shareholder vote results
|
Sep 18, 2026 | Sep 18, 2026 |
| DEFA14A | Additional proxy material | Sep 8, 2026 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 20, 2026 | Aug 20, 2026 |
| 10-Q | Quarterly report | Aug 7, 2026 | Jun 30, 2026 |
| DEFA14A | Additional proxy material | Aug 7, 2026 | — |
| DEF 14A | Proxy statement | Aug 5, 2026 | Sep 18, 2026 |
| ARS | Annual report to shareholders | Jul 23, 2026 | Dec 31, 2025 |
| PRE 14A | Preliminary proxy statement | Jul 13, 2026 | Sep 18, 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 |
| 10-Q | Quarterly report | May 15, 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 | Apr 2, 2026 | Mar 31, 2026 |
| 10-K | Annual report | Mar 13, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 19, 2026 | Feb 19, 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 |
| 10-Q | Quarterly report | Nov 12, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Oct 15, 2025 | Oct 15, 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 |
| 424B3 | Prospectus | Sep 23, 2025 | — |
| EFFECT | Filing | Sep 19, 2025 | — |
| POS AM | Post-effective amendment no. 1 | Sep 16, 2025 | — |
| 424B3 | Prospectus | Sep 12, 2025 | — |
| EFFECT | Filing | Sep 9, 2025 | — |
| POS AM | Post-effective amendment no. 3 | Sep 5, 2025 | — |
| DEFA14A | Additional proxy material | Sep 4, 2025 | — |
| DEF 14A | Proxy statement | Sep 4, 2025 | Oct 15, 2025 |
| ARS | Annual report to shareholders | Aug 27, 2025 | Dec 31, 2024 |
| 10-Q | Quarterly report | Aug 14, 2025 | Jun 30, 2025 |
| PRE 14A | Preliminary proxy statement | Aug 13, 2025 | Oct 15, 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 |
| 8-K |
Current report
Other events
|
May 28, 2025 | May 28, 2025 |
| UPLOAD | Letter from the SEC | May 21, 2025 | — |
| CORRESP | Letter to the SEC | May 16, 2025 | — |
| 10-Q | Quarterly report | May 15, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Change to shareholder rights, Bylaw or fiscal year change, Regulation FD disclosure
|
May 13, 2025 | May 12, 2025 |
| UPLOAD | Letter from the SEC | May 7, 2025 | — |
| CORRESP | Letter to the SEC | May 7, 2025 | — |
| UPLOAD | Letter from the SEC | Apr 24, 2025 | — |
| S-8 | Employee stock plan registration | Apr 8, 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 |
| 424B3 | Prospectus | Mar 25, 2025 | — |
| 424B3 | Prospectus | Mar 25, 2025 | — |
| 10-K | Annual report | Mar 20, 2025 | Dec 31, 2024 |
| 3 | Initial insider ownership | Mar 13, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 21, 2025 | Feb 21, 2025 |
| EFFECT | Filing | Feb 14, 2025 | — |
| 424B5 | Prospectus supplement | Feb 14, 2025 | — |
| CORRESP | Letter to the SEC | Feb 13, 2025 | — |
| UPLOAD | Letter from the SEC | Feb 13, 2025 | — |
| S-3 | Shelf registration | Feb 7, 2025 | — |
| 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 |
| 8-K |
Current report
Listing notice
|
Dec 4, 2024 | Dec 4, 2024 |
| EFFECT | Filing | Dec 3, 2024 | — |
| 424B3 | Prospectus | Dec 3, 2024 | — |
| CORRESP | Letter to the SEC | Dec 2, 2024 | — |
| UPLOAD | Letter from the SEC | Nov 26, 2024 | — |
| S-1 | Registration statement | Nov 22, 2024 | — |
| 8-K |
Current report
Shareholder vote results
|
Nov 18, 2024 | Nov 15, 2024 |
| 10-Q | Quarterly report | Nov 13, 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 | 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 |
| DEFA14A | Additional proxy material | Oct 4, 2024 | — |
| DEF 14A | Proxy statement | Oct 4, 2024 | Nov 15, 2024 |
| ARS | Annual report to shareholders | Sep 25, 2024 | Dec 31, 2023 |
| PRE 14A | Preliminary proxy statement | Sep 23, 2024 | Nov 15, 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 |
| EFFECT | Filing | Sep 5, 2024 | — |
| POS AM | Post effective amendment no. 2 | Aug 30, 2024 | — |
| 10-Q | Quarterly report | Aug 12, 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 |
| 4 | Insider transaction | Jul 2, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Listing notice
|
Jun 7, 2024 | Jun 3, 2024 |
| 10-Q | Quarterly report | May 15, 2024 | Mar 31, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | May 8, 2024 | — |
| S-8 | Employee stock plan registration | Apr 26, 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 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 2, 2024 | Apr 2, 2024 |
| 424B3 | Prospectus | Apr 2, 2024 | — |
| 10-K | Annual report | Apr 1, 2024 | Dec 31, 2023 |
| 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 |
| D | Filing | Feb 6, 2024 | — |
| 4 | Insider transaction | Feb 5, 2024 | Jan 31, 2024 |
| 8-K |
Current report
Unregistered share sale, Other events
|
Feb 2, 2024 | Feb 2, 2024 |
| SC 13G | Ownership over 5% (passive) | Feb 2, 2024 | — |
| EFFECT | Filing | Feb 1, 2024 | — |
| 424B5 | Prospectus supplement | Feb 1, 2024 | — |
| 8-K |
Current report
Material agreement
|
Feb 1, 2024 | Jan 26, 2024 |
| CORRESP | Letter to the SEC | Jan 30, 2024 | — |
| UPLOAD | Letter from the SEC | Jan 30, 2024 | — |
| DEL AM | Delaying amendment | Jan 29, 2024 | — |
| S-3 | Shelf registration | Jan 26, 2024 | — |
| 8-K |
Current report
Agreement ended
|
Jan 4, 2024 | Jan 4, 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 |
| 8-K |
Current report
Shareholder vote results
|
Dec 19, 2023 | Dec 18, 2023 |
| 8-K |
Current report
Other events
|
Dec 6, 2023 | Dec 5, 2023 |
| 8-K |
Current report
Listing notice
|
Nov 22, 2023 | Nov 20, 2023 |
| DEFA14A | Additional proxy material | Nov 22, 2023 | — |
| 10-Q | Quarterly report | Nov 13, 2023 | Sep 30, 2023 |
| 4 | Insider transaction | Nov 3, 2023 | Oct 31, 2023 |
| 4/A | Primary document | Nov 3, 2023 | Jun 23, 2023 |
| DEF 14A | Proxy statement | Oct 27, 2023 | Dec 4, 2023 |
| PRE 14A | Preliminary proxy statement | Oct 12, 2023 | Dec 15, 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 |
| 8-K |
Current report
Listing notice
|
Sep 25, 2023 | Sep 21, 2023 |
| 8-K/A |
Amended current report
Material agreement, New debt, Unregistered share sale
|
Sep 14, 2023 | Mar 8, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 11, 2023 | Sep 11, 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 |
| 10-Q | Quarterly report | Aug 14, 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 |
| 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 |
| 8-K |
Current report
Material agreement, Officer or director change
|
Jun 22, 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 |
| 4 | Insider transaction | Jun 21, 2023 | Jun 19, 2023 |
| 8-K/A |
Amended current report
Material agreement, New debt, Unregistered share sale
|
Jun 5, 2023 | Mar 8, 2023 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
May 30, 2023 | May 26, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
May 16, 2023 | May 16, 2023 |
| 424B3 | Prospectus | May 15, 2023 | — |
| 424B3 | Prospectus | May 15, 2023 | — |
| 10-Q | Quarterly report | May 15, 2023 | Mar 31, 2023 |
| DEF 14A | Proxy statement | May 3, 2023 | May 2, 2023 |
| 424B3 | Prospectus | May 1, 2023 | — |
| EFFECT | Filing | Apr 28, 2023 | — |
| POS AM | Post-effective amendment no 1 to form s-1 | Apr 24, 2023 | — |
| EFFECT | Filing | Apr 11, 2023 | — |
| 424B3 | Prospectus | Apr 11, 2023 | — |
| CORRESP | Letter to the SEC | Apr 10, 2023 | — |
| UPLOAD | Letter from the SEC | Apr 10, 2023 | — |
| PRE 14A | Preliminary proxy statement | Apr 7, 2023 | Apr 7, 2023 |
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.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
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)
Other In Vitro & In Vivo Diagnostic Substances companies
- Idexx Laboratories Inc /DE IDXX
- Lantheus Holdings, Inc. LNTH
- Neogen Corp NEOG
- Celldex Therapeutics, Inc. CLDX
- Intellia Therapeutics, Inc. NTLA
- QuidelOrtho Corp QDEL
- Achieve Life Sciences, Inc. ACHV
- Myriad Genetics Inc MYGN
Source: SEC EDGAR filings. This is company-reported data, not investment advice.