# Cero Therapeutics Holdings, Inc.: filings

CERO · OTC · CIK 1870404 · [Healthcare](/sectors/healthcare.md) · fiscal year ends Dec 31

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

## Reports and events: 133 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 (424B3 79, 8-K 77, 4 71, CORRESP 27, 3 19, UPLOAD 16, 10-Q 15, 425 14, EFFECT 11, S-1/A 9, SC 13G 9, SC 13G/A 9, DEF 14A 8, PRE 14A 8, S-1 8, 10-K 5, DEFA14A 5, S-4/A 5, NT 10-Q 4, 4/A 3, 8-K/A 3, D 3, NT 10-K 3, SCHEDULE 13G/A 3, 10-K/A 2, 25-NSE 2, 3/A 2, PRER14A 2, S-8 2, SC 13D 2, SCHEDULE 13D/A 2, SCHEDULE 13G 2, 10-Q/A 1, 424B4 1, 424B5 1, 8-A12B 1, ARS 1, CERT 1, DEFM14A 1, DEFR14A 1, DRS 1, POS AM 1, S-3 1, S-4 1, SC 13D/A 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-10-07 | 12:30 ET | [8-K](/filings/0001213900-26-107410.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001213900-26-107410 |
| 2026-08-31 | 20:52 ET | [8-K](/filings/0001213900-26-095776.md) | 1.01 Entry into a material agreement; 1.02 Termination of a material agreement; 2.03 New direct financial obligation; 3.02 Unregistered sale of equity; 9.01 Financial statements and exhibits | 0001213900-26-095776 |
| 2026-08-14 | 20:06 ET | [10-Q](/filings/0001213900-26-090030.md) | Quarterly report, period 2026-06-30 | 0001213900-26-090030 |
| 2026-07-17 | 20:37 ET | [8-K](/filings/0001213900-26-079207.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 | 0001213900-26-079207 |
| 2026-06-26 | 20:05 ET | [8-K](/filings/0001213900-26-072602.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 | 0001213900-26-072602 |
| 2026-05-29 | 20:05 ET | [8-K](/filings/0001213900-26-062802.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 | 0001213900-26-062802 |
| 2026-05-15 | 20:12 ET | [10-Q](/filings/0001213900-26-057753.md) | Quarterly report, period 2026-03-31 | 0001213900-26-057753 |
| 2026-05-01 | 20:10 ET | [8-K](/filings/0001213900-26-050951.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 | 0001213900-26-050951 |
| 2026-04-30 | 20:34 ET | [10-K/A](/filings/0001213900-26-050302.md) | Annual report, amended, period 2025-12-31 | 0001213900-26-050302 |
| 2026-04-15 | 20:05 ET | [10-K](/filings/0001213900-26-044040.md) | Annual report, period 2025-12-31 | 0001213900-26-044040 |
| 2026-04-14 | 20:01 ET | [8-K](/filings/0001213900-26-043519.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 | 0001213900-26-043519 |
| 2026-03-11 | 22:44 ET | [8-K](/filings/0001213900-26-025817.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 | 0001213900-26-025817 |
| 2026-02-13 | 21:35 ET | [8-K](/filings/0001213900-26-016474.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 3.02 Unregistered sale of equity; 4.01 Change of auditor; 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001213900-26-016474 |
| 2026-02-04 | 14:12 ET | [8-K](/filings/0001213900-26-011844.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001213900-26-011844 |
| 2026-02-03 | 22:15 ET | [8-K](/filings/0001213900-26-011587.md) | 3.01 Delisting notice | 0001213900-26-011587 |
| 2026-01-07 | 21:37 ET | [8-K](/filings/0001213900-26-002187.md) | 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001213900-26-002187 |
| 2025-12-19 | 21:49 ET | [8-K](/filings/0001213900-25-123912.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001213900-25-123912 |
| 2025-12-05 | 22:12 ET | [S-1](/filings/0001213900-25-118817.md) | Registration statement | 0001213900-25-118817 |
| 2025-12-02 | 13:30 ET | [8-K](/filings/0001213900-25-116971.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001213900-25-116971 |
| 2025-11-28 | 13:31 ET | [DEF 14A](/filings/0001213900-25-115783.md) | Proxy statement, period 2025-12-19 | 0001213900-25-115783 |
| 2025-11-19 | 21:10 ET | [10-Q](/filings/0001213900-25-112619.md) | Quarterly report, period 2025-09-30 | 0001213900-25-112619 |
| 2025-10-30 | 23:27 ET | [8-K](/filings/0001213900-25-103661.md) | 3.01 Delisting notice; 8.01 Other events; 9.01 Financial statements and exhibits | 0001213900-25-103661 |
| 2025-10-16 | 20:17 ET | [8-K](/filings/0001213900-25-099560.md) | 1.01 Entry into a material agreement; 5.03 Amendment to articles or bylaws; 8.01 Other events; 9.01 Financial statements and exhibits | 0001213900-25-099560 |
| 2025-10-14 | 13:11 ET | [8-K](/filings/0001213900-25-098421.md) | 1.01 Entry into a material agreement; 3.02 Unregistered sale of equity; 9.01 Financial statements and exhibits | 0001213900-25-098421 |
| 2025-09-22 | 20:10 ET | [8-K](/filings/0001213900-25-090107.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001213900-25-090107 |
| 2025-09-05 | 12:32 ET | [8-K](/filings/0001213900-25-084737.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001213900-25-084737 |
| 2025-09-04 | 20:05 ET | [8-K](/filings/0001213900-25-084498.md) | 3.01 Delisting notice | 0001213900-25-084498 |
| 2025-08-22 | 20:06 ET | [10-Q](/filings/0001213900-25-079898.md) | Quarterly report, period 2025-06-30 | 0001213900-25-079898 |
| 2025-07-21 | 20:35 ET | [S-1](/filings/0001213900-25-066152.md) | Registration statement | 0001213900-25-066152 |
| 2025-07-18 | 20:05 ET | [8-K](/filings/0001213900-25-065655.md) | 3.02 Unregistered sale of equity; 9.01 Financial statements and exhibits | 0001213900-25-065655 |
| 2025-07-14 | 12:00 ET | [8-K](/filings/0001213900-25-063475.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001213900-25-063475 |
| 2025-07-08 | 12:00 ET | [8-K](/filings/0001213900-25-061911.md) | 8.01 Other events | 0001213900-25-061911 |
| 2025-06-30 | 21:09 ET | [8-K](/filings/0001213900-25-059738.md) | 1.01 Entry into a material agreement; 3.02 Unregistered sale of equity; 9.01 Financial statements and exhibits | 0001213900-25-059738 |
| 2025-06-17 | 12:24 ET | [8-K](/filings/0001213900-25-054961.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001213900-25-054961 |
| 2025-06-13 | 21:14 ET | [8-K](/filings/0001213900-25-054371.md) | 3.01 Delisting notice | 0001213900-25-054371 |
| 2025-06-11 | 13:20 ET | [8-K](/filings/0001213900-25-053292.md) | 5.03 Amendment to articles or bylaws; 8.01 Other events; 9.01 Financial statements and exhibits | 0001213900-25-053292 |
| 2025-06-06 | 12:33 ET | [8-K](/filings/0001213900-25-051750.md) | 3.02 Unregistered sale of equity; 8.01 Other events; 9.01 Financial statements and exhibits | 0001213900-25-051750 |
| 2025-06-02 | 20:22 ET | [8-K](/filings/0001213900-25-050055.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001213900-25-050055 |
| 2025-05-29 | 21:10 ET | [8-K](/filings/0001213900-25-048998.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001213900-25-048998 |
| 2025-05-15 | 20:57 ET | [10-Q](/filings/0001213900-25-044335.md) | Quarterly report, period 2025-03-31 | 0001213900-25-044335 |
| 2025-05-08 | 20:10 ET | [8-K](/filings/0001213900-25-041063.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001213900-25-041063 |
| 2025-05-07 | 21:48 ET | [DEF 14A](/filings/0001213900-25-040263.md) | Proxy statement, period 2025-05-29 | 0001213900-25-040263 |
| 2025-04-28 | 20:10 ET | [10-K/A](/filings/0001213900-25-036075.md) | Annual report, amended, period 2024-12-31 | 0001213900-25-036075 |
| 2025-04-25 | 20:03 ET | [8-K](/filings/0001213900-25-035535.md) | 5.03 Amendment to articles or bylaws; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001213900-25-035535 |
| 2025-04-22 | 12:20 ET | [8-K](/filings/0001213900-25-033946.md) | 1.01 Entry into a material agreement; 3.02 Unregistered sale of equity; 8.01 Other events; 9.01 Financial statements and exhibits | 0001213900-25-033946 |
| 2025-04-15 | 20:30 ET | [10-K](/filings/0001213900-25-032134.md) | Annual report, period 2024-12-31 | 0001213900-25-032134 |
| 2025-04-04 | 23:17 ET | [SCHEDULE 13D/A](/filings/0001213900-25-029113.md) | Ownership report, active investor, amended | 0001213900-25-029113 |
| 2025-02-12 | 21:10 ET | [8-K](/filings/0001213900-25-012891.md) | 8.01 Other events | 0001213900-25-012891 |
| 2025-02-07 | 22:21 ET | [SCHEDULE 13D/A](/filings/0001213900-25-011405.md) | Ownership report, active investor, amended | 0001213900-25-011405 |
| 2025-02-06 | 13:22 ET | [8-K](/filings/0001213900-25-010731.md) | 1.01 Entry into a material agreement; 8.01 Other events; 9.01 Financial statements and exhibits | 0001213900-25-010731 |

Page 1 of 3. [Older](/companies/cero/filings.md?page=2)
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 15:16 ET. No prices; not investment advice.