# Cardio Diagnostics Holdings, Inc.: filings

CDIO · Nasdaq · CIK 1870144 · [Healthcare](/sectors/healthcare.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/cdio.md) · [Financials](/companies/cdio/financials.md) · [Filings](/companies/cdio/filings.md) · [Insiders](/companies/cdio/insiders.md)

## Reports and events: 75 filings

Newest first, by EDGAR acceptance time (Eastern). Filter with ?form= one of: `periodic`, `8-K`, `10-K`, `10-Q`, `4`, `proxy`, `13dg`, `all`, or any form this company filed (4 84, 8-K 36, 3 18, 10-Q 14, 424B3 13, CORRESP 12, UPLOAD 12, 4/A 11, EFFECT 11, 425 7, S-4/A 6, SC 13G/A 6, 10-K 5, DEF 14A 5, DEFA14A 5, PRE 14A 5, SC 13G 5, POS AM 4, S-1 4, S-1/A 4, ARS 3, S-8 3, SC 13D 3, 424B5 2, 8-K/A 2, S-3 2, SC 13D/A 2, SEC STAFF LETTER 2, 25-NSE 1, 424B4 1, 8-A12B 1, AW 1, CERT 1, D 1, DEL AM 1, DRS 1, S-4 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-09-18 | 20:45 ET | [8-K](/filings/0001553350-26-000131.md) | 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001553350-26-000131 |
| 2026-08-20 | 12:03 ET | [8-K](/filings/0001079973-26-001153.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001079973-26-001153 |
| 2026-08-07 | 20:30 ET | [10-Q](/filings/0001079973-26-001016.md) | Quarterly report, period 2026-06-30 | 0001079973-26-001016 |
| 2026-08-05 | 20:30 ET | [DEF 14A](/filings/0001079973-26-001003.md) | Proxy statement, period 2026-09-18 | 0001079973-26-001003 |
| 2026-05-15 | 20:35 ET | [10-Q](/filings/0001553350-26-000089.md) | Quarterly report, period 2026-03-31 | 0001553350-26-000089 |
| 2026-03-13 | 21:18 ET | [10-K](/filings/0001553350-26-000023.md) | Annual report, period 2025-12-31 | 0001553350-26-000023 |
| 2026-02-19 | 13:00 ET | [8-K](/filings/0001079973-26-000239.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001079973-26-000239 |
| 2025-11-12 | 21:30 ET | [10-Q](/filings/0001079973-25-001686.md) | Quarterly report, period 2025-09-30 | 0001079973-25-001686 |
| 2025-10-15 | 20:45 ET | [8-K](/filings/0001079973-25-001612.md) | 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001079973-25-001612 |
| 2025-09-04 | 12:00 ET | [DEF 14A](/filings/0001079973-25-001419.md) | Proxy statement, period 2025-10-15 | 0001079973-25-001419 |
| 2025-08-14 | 20:16 ET | [10-Q](/filings/0001079973-25-001287.md) | Quarterly report, period 2025-06-30 | 0001079973-25-001287 |
| 2025-05-28 | 20:30 ET | [8-K](/filings/0001079973-25-000937.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001079973-25-000937 |
| 2025-05-15 | 20:20 ET | [10-Q](/filings/0001553350-25-000044.md) | Quarterly report, period 2025-03-31 | 0001553350-25-000044 |
| 2025-05-13 | 12:00 ET | [8-K](/filings/0001079973-25-000781.md) | 3.03 Change to security holders’ rights; 5.03 Amendment to articles or bylaws; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001079973-25-000781 |
| 2025-03-20 | 20:30 ET | [10-K](/filings/0001079973-25-000428.md) | Annual report, period 2024-12-31 | 0001079973-25-000428 |
| 2025-02-21 | 12:00 ET | [8-K](/filings/0001079973-25-000308.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001079973-25-000308 |
| 2024-12-04 | 21:30 ET | [8-K](/filings/0001079973-24-001660.md) | 3.01 Delisting notice; 9.01 Financial statements and exhibits | 0001079973-24-001660 |
| 2024-11-22 | 21:39 ET | [S-1](/filings/0001079973-24-001610.md) | Registration statement | 0001079973-24-001610 |
| 2024-11-18 | 21:30 ET | [8-K](/filings/0001079973-24-001569.md) | 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001079973-24-001569 |
| 2024-11-13 | 21:21 ET | [10-Q](/filings/0001079973-24-001510.md) | Quarterly report, period 2024-09-30 | 0001079973-24-001510 |
| 2024-10-04 | 20:15 ET | [DEF 14A](/filings/0001079973-24-001355.md) | Proxy statement, period 2024-11-15 | 0001079973-24-001355 |
| 2024-08-12 | 20:30 ET | [10-Q](/filings/0001079973-24-001206.md) | Quarterly report, period 2024-06-30 | 0001079973-24-001206 |
| 2024-06-07 | 20:30 ET | [8-K](/filings/0001079973-24-000850.md) | 3.01 Delisting notice; 9.01 Financial statements and exhibits | 0001079973-24-000850 |
| 2024-05-15 | 20:30 ET | [10-Q](/filings/0001079973-24-000739.md) | Quarterly report, period 2024-03-31 | 0001079973-24-000739 |
| 2024-04-02 | 20:30 ET | [8-K](/filings/0001079973-24-000500.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001079973-24-000500 |
| 2024-04-01 | 21:15 ET | [10-K](/filings/0001079973-24-000480.md) | Annual report, period 2023-12-31 | 0001079973-24-000480 |
| 2024-02-02 | 22:02 ET | [8-K](/filings/0001079973-24-000172.md) | 3.02 Unregistered sale of equity; 8.01 Other events; 9.01 Financial statements and exhibits | 0001079973-24-000172 |
| 2024-02-01 | 21:35 ET | [8-K](/filings/0001079973-24-000169.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001079973-24-000169 |
| 2024-01-04 | 22:16 ET | [8-K](/filings/0001079973-24-000021.md) | 1.02 Termination of a material agreement; 9.01 Financial statements and exhibits | 0001079973-24-000021 |
| 2023-12-19 | 11:05 ET | [8-K](/filings/0001079973-23-001784.md) | 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001079973-23-001784 |
| 2023-12-06 | 11:05 ET | [8-K](/filings/0001079973-23-001705.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001079973-23-001705 |
| 2023-11-22 | 22:00 ET | [8-K](/filings/0001079973-23-001650.md) | 3.01 Delisting notice; 9.01 Financial statements and exhibits | 0001079973-23-001650 |
| 2023-11-13 | 21:24 ET | [10-Q](/filings/0001079973-23-001555.md) | Quarterly report, period 2023-09-30 | 0001079973-23-001555 |
| 2023-10-27 | 21:04 ET | [DEF 14A](/filings/0001079973-23-001495.md) | Proxy statement, period 2023-12-04 | 0001079973-23-001495 |
| 2023-09-25 | 20:45 ET | [8-K](/filings/0001079973-23-001304.md) | 3.01 Delisting notice; 9.01 Financial statements and exhibits | 0001079973-23-001304 |
| 2023-09-14 | 20:32 ET | [8-K/A](/filings/0001079973-23-001267.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 3.02 Unregistered sale of equity; 9.01 Financial statements and exhibits | 0001079973-23-001267 |
| 2023-09-11 | 21:25 ET | [8-K](/filings/0001079973-23-001248.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001079973-23-001248 |
| 2023-08-14 | 20:45 ET | [10-Q](/filings/0001079973-23-001160.md) | Quarterly report, period 2023-06-30 | 0001079973-23-001160 |
| 2023-06-28 | 18:51 ET | [SC 13D/A](/filings/0000935836-23-000488.md) | Ownership report, active investor, amended | 0000935836-23-000488 |
| 2023-06-28 | 18:17 ET | [SC 13D/A](/filings/0000935836-23-000490.md) | Ownership report, active investor, amended | 0000935836-23-000490 |
| 2023-06-22 | 20:45 ET | [8-K](/filings/0001553350-23-000338.md) | 1.01 Entry into a material agreement; 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001553350-23-000338 |
| 2023-06-05 | 20:50 ET | [8-K/A](/filings/0001079973-23-000822.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 3.02 Unregistered sale of equity; 9.01 Financial statements and exhibits | 0001079973-23-000822 |
| 2023-05-30 | 20:47 ET | [8-K](/filings/0001079973-23-000793.md) | 5.03 Amendment to articles or bylaws; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001079973-23-000793 |
| 2023-05-16 | 20:31 ET | [8-K](/filings/0001079973-23-000735.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001079973-23-000735 |
| 2023-05-15 | 20:35 ET | [10-Q](/filings/0001079973-23-000711.md) | Quarterly report, period 2023-03-31 | 0001079973-23-000711 |
| 2023-05-03 | 20:51 ET | [DEF 14A](/filings/0001079973-23-000612.md) | Proxy statement, period 2023-05-02 | 0001079973-23-000612 |
| 2023-04-05 | 20:46 ET | [S-1](/filings/0001079973-23-000447.md) | Registration statement | 0001079973-23-000447 |
| 2023-03-31 | 20:46 ET | [10-K](/filings/0001079973-23-000412.md) | Annual report, period 2022-12-31 | 0001079973-23-000412 |
| 2023-03-13 | 21:00 ET | [8-K](/filings/0001079973-23-000326.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 3.02 Unregistered sale of equity; 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001079973-23-000326 |
| 2023-01-13 | 21:36 ET | [S-1/A](/filings/0001136261-23-000014.md) | Registration statement, amended | 0001136261-23-000014 |

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Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 15:06 ET. No prices; not investment advice.