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 |
|---|---|---|---|
| 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 |
| 10-Q | Quarterly report | May 15, 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 |
| 10-Q | Quarterly report | Nov 12, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Oct 15, 2025 | Oct 15, 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 |
| 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 | — |
| 424B3 | Prospectus | Mar 25, 2025 | — |
| 424B3 | Prospectus | Mar 25, 2025 | — |
| 10-K | Annual report | Mar 20, 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 | — |
| 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 |
| 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 |
| 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 |
| 8-K |
Current report
Listing notice
|
Jun 7, 2024 | Jun 3, 2024 |
| 10-Q | Quarterly report | May 15, 2024 | Mar 31, 2024 |
| S-8 | Employee stock plan registration | Apr 26, 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 |
| D | Filing | Feb 6, 2024 | — |
| 8-K |
Current report
Unregistered share sale, Other events
|
Feb 2, 2024 | 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 |
| 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 |
| DEF 14A | Proxy statement | Oct 27, 2023 | Dec 4, 2023 |
| PRE 14A | Preliminary proxy statement | Oct 12, 2023 | Dec 15, 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 |
| 10-Q | Quarterly report | Aug 14, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Material agreement, Officer or director change
|
Jun 22, 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 |
| S-1 | Registration statement | Apr 5, 2023 | — |
| 424B3 | Prospectus | Mar 31, 2023 | — |
| 10-K | Annual report | Mar 31, 2023 | Dec 31, 2022 |
| S-8 | Employee stock plan registration | Mar 22, 2023 | — |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale, Regulation FD disclosure, Other events
|
Mar 13, 2023 | Mar 8, 2023 |
| 424B3 | Prospectus | Jan 25, 2023 | — |
| EFFECT | Filing | Jan 24, 2023 | — |
| CORRESP | Letter to the SEC | Jan 20, 2023 | — |
| S-1/A | Amended registration statement | Jan 13, 2023 | — |
| S-1/A | Amended registration statement | Dec 27, 2022 | — |
| UPLOAD | Letter from the SEC | Dec 22, 2022 | — |
| S-1 | Registration statement | Dec 12, 2022 | — |
| 8-K |
Current report
Auditor change
|
Nov 10, 2022 | Nov 9, 2022 |
| 10-Q | Quarterly report | Nov 7, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Listing notice, Change to shareholder rights, Change in control, Officer or director change, Bylaw or fiscal year change, Shareholder vote results, Regulation FD disclosure
|
Oct 31, 2022 | Oct 25, 2022 |
| 25-NSE | Delisting notice | Oct 26, 2022 | — |
| 425 | Filing | Oct 11, 2022 | — |
| SEC STAFF LETTER | Filing | Oct 7, 2022 | — |
| 424B3 | Prospectus | Oct 7, 2022 | — |
| EFFECT | Filing | Oct 6, 2022 | — |
| CORRESP | Letter to the SEC | Oct 5, 2022 | — |
| S-4/A | Form s-4/a | Oct 5, 2022 | — |
| S-4/A | Form s-4/a | Oct 4, 2022 | — |
| CORRESP | Letter to the SEC | Oct 3, 2022 | — |
| UPLOAD | Letter from the SEC | Sep 30, 2022 | — |
| 425 | Filing | Sep 23, 2022 | — |
| 8-K |
Current report
New debt, Other events
|
Sep 23, 2022 | Sep 22, 2022 |
| 425 | Filing | Sep 21, 2022 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 21, 2022 | Sep 21, 2022 |
| S-4/A | Form s-4/a | Sep 15, 2022 | — |
| CORRESP | Letter to the SEC | Sep 15, 2022 | — |
| 425 | Filing | Sep 15, 2022 | — |
| 8-K |
Current report
Material agreement
|
Sep 15, 2022 | Sep 15, 2022 |
| UPLOAD | Letter from the SEC | Sep 9, 2022 | — |
| 425 | Filing | Aug 26, 2022 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 26, 2022 | Aug 26, 2022 |
| 425 | Filing | Aug 25, 2022 | — |
| 8-K |
Current report
New debt, Other events
|
Aug 25, 2022 | Aug 23, 2022 |
| CORRESP | Letter to the SEC | Aug 23, 2022 | — |
| S-4/A | Form s-4 amendment no. 2 | Aug 23, 2022 | — |
| 10-Q | Quarterly report | Aug 10, 2022 | Jun 30, 2022 |
| UPLOAD | Letter from the SEC | Aug 8, 2022 | — |
| SEC STAFF LETTER | Filing | Aug 4, 2022 | — |
| S-4/A | Form s-4/a1 | Jul 27, 2022 | — |
| AW | Form aw | Jul 27, 2022 | — |
| CORRESP | Letter to the SEC | Jul 25, 2022 | — |
| S-4/A | Form s-4/a1 | Jul 25, 2022 | — |
| UPLOAD | Letter from the SEC | Jul 5, 2022 | — |
| 425 | Filing | May 31, 2022 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale, Regulation FD disclosure
|
May 31, 2022 | May 27, 2022 |
| S-4 | Registration for a merger or exchange | May 31, 2022 | — |
| 10-Q | Quarterly report | May 12, 2022 | Mar 31, 2022 |
| 10-K | Annual report | Mar 31, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Auditor change
|
Jan 25, 2022 | Jan 19, 2022 |
| 8-K |
Current report
Other events
|
Jan 12, 2022 | Jan 12, 2022 |
| 8-K |
Current report
Unregistered share sale, Other events
|
Dec 6, 2021 | Nov 30, 2021 |
| 8-K |
Current report
Unregistered share sale, Other events
|
Dec 3, 2021 | Nov 26, 2021 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Bylaw or fiscal year change, Other events
|
Nov 26, 2021 | Nov 22, 2021 |
| 424B4 | Prospectus | Nov 24, 2021 | — |
| EFFECT | Filing | Nov 22, 2021 | — |
| CERT | Filing | Nov 22, 2021 | — |
| 8-A12B | Form 8-a12b | Nov 22, 2021 | — |
| S-1/A | Amended registration statement | Nov 17, 2021 | — |
| S-1/A | Amended registration statement | Nov 10, 2021 | — |
| S-1 | Registration statement | Oct 19, 2021 | — |
| DRS | Filing | Jul 20, 2021 | — |
Showing 166 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.