# Protagenic Therapeutics, Inc.\\new: filings

PTIX · OTC · CIK 1022899 · [Healthcare](/sectors/healthcare.md) · fiscal year ends Mar 31

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

## Reports and events: 257 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 (8-K 149, 4 68, 10-Q 45, CORRESP 24, UPLOAD 18, 3 17, 10-K 15, DEF 14A 13, SC 13G/A 12, 10-K/A 8, EFFECT 8, S-8 8, DEFA14A 7, NT 10-Q 7, S-1/A 7, SC 13D/A 7, PRE 14A 6, 8-K/A 5, NT 10-K 5, S-3/A 5, SC 13G 5, 424B3 4, D/A 4, S-3 4, 424B5 3, D 3, S-1 3, S-8 POS 3, SC 13D 3, 10-12G/A 2, 10-Q/A 2, 424B4 2, 5 2, SCHEDULE 13G/A 2, 10-12G 1, 10-QT 1, 15-12G 1, 25 1, 25-NSE 1, 4/A 1, 8-A12B 1, CERT 1, DEFR14A 1, POS AM 1, POS EX 1, S-1MEF 1, SC 14F1 1, SCHEDULE 13G 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-08-20 | 11:26 ET | [8-K](/filings/0001493152-26-039410.md) | 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001493152-26-039410 |
| 2026-08-19 | 16:28 ET | [10-Q](/filings/0001493152-26-039221.md) | Quarterly report, period 2026-06-30 | 0001493152-26-039221 |
| 2026-08-14 | 15:19 ET | [10-K](/filings/0001493152-26-038255.md) | Annual report, period 2026-03-31 | 0001493152-26-038255 |
| 2026-04-07 | 19:13 ET | [8-K](/filings/0001493152-26-015365.md) | 5.02 Departure or appointment of officers or directors | 0001493152-26-015365 |
| 2026-03-09 | 07:46 ET | [10-Q](/filings/0001493152-26-009301.md) | Quarterly report, period 2025-12-31 | 0001493152-26-009301 |
| 2026-03-03 | 21:27 ET | [8-K](/filings/0001493152-26-008605.md) | 5.02 Departure or appointment of officers or directors | 0001493152-26-008605 |
| 2026-02-24 | 20:49 ET | [8-K](/filings/0001493152-26-007800.md) | 1.01 Entry into a material agreement; 1.02 Termination of a material agreement; 2.01 Completion of an acquisition or disposition; 3.02 Unregistered sale of equity; 8.01 Other events; 9.01 Financial statements and exhibits | 0001493152-26-007800 |
| 2026-01-05 | 07:45 ET | [8-K](/filings/0001493152-26-000263.md) | 3.01 Delisting notice | 0001493152-26-000263 |
| 2025-12-05 | 16:52 ET | [DEF 14A](/filings/0001493152-25-026414.md) | Proxy statement, period 2025-12-05 | 0001493152-25-026414 |
| 2025-11-26 | 17:26 ET | [10-Q](/filings/0001493152-25-025201.md) | Quarterly report, period 2025-09-30 | 0001493152-25-025201 |
| 2025-11-26 | 16:18 ET | [8-K](/filings/0001493152-25-025159.md) | 3.01 Delisting notice; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001493152-25-025159 |
| 2025-11-05 | 16:21 ET | [8-K](/filings/0001493152-25-020881.md) | 5.02 Departure or appointment of officers or directors | 0001493152-25-020881 |
| 2025-10-31 | 17:08 ET | [8-K](/filings/0001493152-25-020444.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001493152-25-020444 |
| 2025-09-17 | 12:21 ET | [8-K/A](/filings/0001493152-25-013851.md) | 9.01 Financial statements and exhibits | 0001493152-25-013851 |
| 2025-08-28 | 18:28 ET | [8-K/A](/filings/0001641172-25-025737.md) | 9.01 Financial statements and exhibits | 0001641172-25-025737 |
| 2025-08-22 | 17:28 ET | [8-K](/filings/0001641172-25-025274.md) | 3.01 Delisting notice; 4.01 Change of auditor; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001641172-25-025274 |
| 2025-08-13 | 17:16 ET | [8-K](/filings/0001641172-25-023588.md) | 2.05 Exit or disposal costs; 5.02 Departure or appointment of officers or directors; 5.03 Amendment to articles or bylaws; 8.01 Other events | 0001641172-25-023588 |
| 2025-07-30 | 16:21 ET | [8-K](/filings/0001641172-25-021552.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001641172-25-021552 |
| 2025-07-24 | 12:39 ET | [8-K](/filings/0001641172-25-020802.md) | 5.02 Departure or appointment of officers or directors | 0001641172-25-020802 |
| 2025-06-27 | 17:30 ET | [8-K](/filings/0001641172-25-016979.md) | 3.03 Change to security holders’ rights; 9.01 Financial statements and exhibits | 0001641172-25-016979 |
| 2025-05-21 | 09:27 ET | [8-K](/filings/0001641172-25-011878.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001641172-25-011878 |
| 2025-05-20 | 11:48 ET | [8-K](/filings/0001641172-25-011633.md) | 1.01 Entry into a material agreement; 3.02 Unregistered sale of equity; 9.01 Financial statements and exhibits | 0001641172-25-011633 |
| 2025-05-19 | 08:19 ET | [8-K](/filings/0001641172-25-011387.md) | 1.01 Entry into a material agreement; 2.01 Completion of an acquisition or disposition; 3.02 Unregistered sale of equity; 3.03 Change to security holders’ rights; 5.02 Departure or appointment of officers or directors; 5.03 Amendment to articles or bylaws; 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001641172-25-011387 |
| 2025-05-13 | 15:22 ET | [10-Q](/filings/0001641172-25-009923.md) | Quarterly report, period 2025-03-31 | 0001641172-25-009923 |
| 2025-05-05 | 06:05 ET | [8-K](/filings/0001641172-25-008455.md) | 5.03 Amendment to articles or bylaws; 9.01 Financial statements and exhibits | 0001641172-25-008455 |
| 2025-04-29 | 16:05 ET | [8-K](/filings/0001641172-25-006649.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001641172-25-006649 |
| 2025-04-18 | 13:39 ET | [8-K](/filings/0001641172-25-005368.md) | 5.07 Shareholder vote results | 0001641172-25-005368 |
| 2025-03-31 | 14:06 ET | [10-K](/filings/0001641172-25-001600.md) | Annual report, period 2024-12-31 | 0001641172-25-001600 |
| 2025-03-10 | 17:39 ET | [DEF 14A](/filings/0001493152-25-009597.md) | Proxy statement, period 2025-03-07 | 0001493152-25-009597 |
| 2025-02-24 | 16:00 ET | [8-K](/filings/0001493152-25-008040.md) | 5.02 Departure or appointment of officers or directors | 0001493152-25-008040 |
| 2025-02-24 | 18:20 ET | [8-K](/filings/0001493152-25-007942.md) | 5.07 Shareholder vote results | 0001493152-25-007942 |
| 2025-01-29 | 16:01 ET | [8-K](/filings/0001493152-25-004143.md) | 3.01 Delisting notice | 0001493152-25-004143 |
| 2025-01-16 | 18:51 ET | [8-K](/filings/0001493152-25-002448.md) | 3.01 Delisting notice | 0001493152-25-002448 |
| 2025-01-10 | 06:04 ET | [8-K](/filings/0001493152-25-001516.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001493152-25-001516 |
| 2025-01-03 | 17:03 ET | [DEF 14A](/filings/0001493152-25-000288.md) | Proxy statement, period 2025-01-03 | 0001493152-25-000288 |
| 2024-12-20 | 06:12 ET | [S-1](/filings/0001493152-24-050846.md) | Registration statement | 0001493152-24-050846 |
| 2024-12-03 | 07:20 ET | [8-K](/filings/0001493152-24-048431.md) | 8.01 Other events | 0001493152-24-048431 |
| 2024-11-22 | 16:12 ET | [8-K](/filings/0001493152-24-047376.md) | 3.01 Delisting notice | 0001493152-24-047376 |
| 2024-11-14 | 16:22 ET | [10-Q](/filings/0001493152-24-045913.md) | Quarterly report, period 2024-09-30 | 0001493152-24-045913 |
| 2024-11-05 | 07:39 ET | [8-K](/filings/0001493152-24-043615.md) | 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001493152-24-043615 |
| 2024-10-30 | 21:52 ET | [8-K](/filings/0001493152-24-042964.md) | 1.01 Entry into a material agreement; 3.02 Unregistered sale of equity; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001493152-24-042964 |
| 2024-09-18 | 21:54 ET | [8-K](/filings/0001493152-24-036925.md) | 8.01 Other events | 0001493152-24-036925 |
| 2024-08-14 | 16:59 ET | [10-Q](/filings/0001493152-24-032349.md) | Quarterly report, period 2024-06-30 | 0001493152-24-032349 |
| 2024-07-26 | 17:30 ET | [8-K](/filings/0001493152-24-029295.md) | 3.01 Delisting notice | 0001493152-24-029295 |
| 2024-05-24 | 16:36 ET | [8-K](/filings/0001493152-24-021383.md) | 3.01 Delisting notice | 0001493152-24-021383 |
| 2024-05-22 | 09:15 ET | [8-K](/filings/0001493152-24-020973.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001493152-24-020973 |
| 2024-05-15 | 16:33 ET | [10-Q](/filings/0001493152-24-019933.md) | Quarterly report, period 2024-03-31 | 0001493152-24-019933 |
| 2024-05-14 | 06:04 ET | [10-K/A](/filings/0001493152-24-019018.md) | Annual report, amended, period 2023-12-31 | 0001493152-24-019018 |
| 2024-04-24 | 20:47 ET | [10-K/A](/filings/0001493152-24-015739.md) | Annual report, amended, period 2023-12-31 | 0001493152-24-015739 |
| 2024-04-01 | 16:00 ET | [10-K](/filings/0001493152-24-012333.md) | Annual report, period 2023-12-31 | 0001493152-24-012333 |

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Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 15:02 ET. No prices; not investment advice.