# Protagonist Therapeutics, Inc: filings

PTGX · Nasdaq · CIK 1377121 · [Healthcare](/sectors/healthcare.md) · fiscal year ends Dec 31

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

## Reports and events: 164 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 (4 261, 8-K 105, SC 13G/A 55, 144 50, 10-Q 31, 3 24, SC 13G 24, 424B5 13, S-8 13, DEFA14A 11, S-8 POS 11, 10-K 10, DEF 14A 10, SCHEDULE 13G/A 9, CORRESP 8, UPLOAD 6, EFFECT 5, SCHEDULE 13G 5, ARS 4, S-3 4, 4/A 3, 8-K/A 3, CT ORDER 2, D 2, S-1/A 2, S-3ASR 2, 424B3 1, 424B4 1, 5 1, 8-A12B 1, 8-A12B/A 1, CERTNAS 1, DRS 1, DRS/A 1, DRSLTR 1, PRE 14A 1, S-1 1, S-1MEF 1, SC 13D 1, SC 13D/A 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-08-05 | 16:17 ET | [10-Q](/filings/0001104659-26-091123.md) | Quarterly report, period 2026-06-30 | 0001104659-26-091123 |
| 2026-08-05 | 16:11 ET | [8-K](/filings/0001104659-26-091099.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-26-091099 |
| 2026-06-18 | 16:30 ET | [8-K](/filings/0001104659-26-075777.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001104659-26-075777 |
| 2026-05-05 | 16:27 ET | [10-Q](/filings/0001104659-26-055661.md) | Quarterly report, period 2026-03-31 | 0001104659-26-055661 |
| 2026-05-05 | 16:08 ET | [8-K](/filings/0001104659-26-055629.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-26-055629 |
| 2026-04-28 | 16:44 ET | [DEF 14A](/filings/0001104659-26-050429.md) | Proxy statement, period 2026-06-17 | 0001104659-26-050429 |
| 2026-02-25 | 16:28 ET | [10-K](/filings/0001104659-26-019696.md) | Annual report, period 2025-12-31 | 0001104659-26-019696 |
| 2026-02-25 | 16:08 ET | [8-K](/filings/0001104659-26-019658.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-26-019658 |
| 2026-01-12 | 08:00 ET | [8-K](/filings/0001104659-26-002724.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-26-002724 |
| 2025-11-06 | 16:52 ET | [10-Q](/filings/0001104659-25-107816.md) | Quarterly report, period 2025-09-30 | 0001104659-25-107816 |
| 2025-11-06 | 16:19 ET | [8-K](/filings/0001104659-25-107753.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-25-107753 |
| 2025-08-06 | 16:22 ET | [10-Q](/filings/0001558370-25-010534.md) | Quarterly report, period 2025-06-30 | 0001558370-25-010534 |
| 2025-08-06 | 16:12 ET | [8-K](/filings/0001104659-25-074719.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-25-074719 |
| 2025-06-26 | 16:08 ET | [8-K](/filings/0001104659-25-063038.md) | 5.07 Shareholder vote results | 0001104659-25-063038 |
| 2025-05-06 | 17:04 ET | [10-Q](/filings/0001558370-25-006530.md) | Quarterly report, period 2025-03-31 | 0001558370-25-006530 |
| 2025-05-06 | 16:27 ET | [8-K](/filings/0001104659-25-045073.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-25-045073 |
| 2025-04-29 | 16:05 ET | [DEF 14A](/filings/0001104659-25-041206.md) | Proxy statement, period 2025-06-20 | 0001104659-25-041206 |
| 2025-03-20 | 16:12 ET | [8-K](/filings/0001104659-25-026135.md) | 8.01 Other events | 0001104659-25-026135 |
| 2025-03-11 | 17:17 ET | [8-K/A](/filings/0001104659-25-022615.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-25-022615 |
| 2025-03-10 | 08:17 ET | [8-K](/filings/0001104659-25-021986.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-25-021986 |
| 2025-03-03 | 08:18 ET | [8-K](/filings/0001104659-25-019516.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-25-019516 |
| 2025-02-21 | 16:36 ET | [10-K](/filings/0001558370-25-001317.md) | Annual report, period 2024-12-31 | 0001558370-25-001317 |
| 2025-02-21 | 07:07 ET | [8-K](/filings/0001104659-25-015897.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-25-015897 |
| 2025-01-06 | 16:05 ET | [8-K](/filings/0001104659-25-001304.md) | 5.02 Departure or appointment of officers or directors | 0001104659-25-001304 |
| 2024-11-18 | 16:36 ET | [8-K](/filings/0001104659-24-120165.md) | 1.01 Entry into a material agreement; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-24-120165 |
| 2024-11-07 | 16:39 ET | [10-Q](/filings/0001558370-24-014888.md) | Quarterly report, period 2024-09-30 | 0001558370-24-014888 |
| 2024-11-07 | 16:09 ET | [8-K](/filings/0001104659-24-115303.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-24-115303 |
| 2024-09-20 | 16:05 ET | [8-K](/filings/0001104659-24-101688.md) | 5.02 Departure or appointment of officers or directors | 0001104659-24-101688 |
| 2024-08-06 | 16:18 ET | [10-Q](/filings/0001558370-24-011095.md) | Quarterly report, period 2024-06-30 | 0001558370-24-011095 |
| 2024-08-06 | 07:08 ET | [8-K](/filings/0001104659-24-086088.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-24-086088 |
| 2024-06-26 | 16:12 ET | [8-K](/filings/0001104659-24-075162.md) | 5.03 Amendment to articles or bylaws; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001104659-24-075162 |
| 2024-05-07 | 16:51 ET | [10-Q](/filings/0001558370-24-007081.md) | Quarterly report, period 2024-03-31 | 0001558370-24-007081 |
| 2024-05-07 | 16:29 ET | [8-K](/filings/0001104659-24-058036.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-24-058036 |
| 2024-04-26 | 16:31 ET | [DEF 14A](/filings/0001104659-24-052999.md) | Proxy statement, period 2024-06-20 | 0001104659-24-052999 |
| 2024-02-27 | 16:33 ET | [10-K](/filings/0001558370-24-001850.md) | Annual report, period 2023-12-31 | 0001558370-24-001850 |
| 2024-02-27 | 16:12 ET | [8-K](/filings/0001104659-24-028208.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-24-028208 |
| 2024-01-31 | 16:05 ET | [8-K](/filings/0001104659-24-008787.md) | 1.01 Entry into a material agreement | 0001104659-24-008787 |
| 2024-01-16 | 08:01 ET | [8-K](/filings/0001104659-24-003903.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-24-003903 |
| 2024-01-08 | 08:00 ET | [8-K](/filings/0001104659-24-002073.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-24-002073 |
| 2023-11-02 | 17:07 ET | [10-Q](/filings/0001558370-23-017460.md) | Quarterly report, period 2023-09-30 | 0001558370-23-017460 |
| 2023-11-02 | 16:40 ET | [8-K](/filings/0001104659-23-113828.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-23-113828 |
| 2023-10-30 | 16:30 ET | [8-K](/filings/0001104659-23-112592.md) | 5.02 Departure or appointment of officers or directors | 0001104659-23-112592 |
| 2023-08-03 | 16:21 ET | [10-Q](/filings/0001558370-23-013245.md) | Quarterly report, period 2023-06-30 | 0001558370-23-013245 |
| 2023-08-03 | 16:13 ET | [8-K](/filings/0001104659-23-087269.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-23-087269 |
| 2023-07-05 | 08:00 ET | [8-K](/filings/0001104659-23-077821.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-23-077821 |
| 2023-07-03 | 16:06 ET | [8-K](/filings/0001104659-23-077599.md) | 3.01 Delisting notice | 0001104659-23-077599 |
| 2023-05-30 | 16:20 ET | [8-K](/filings/0001104659-23-066057.md) | 5.07 Shareholder vote results | 0001104659-23-066057 |
| 2023-05-04 | 16:33 ET | [10-Q](/filings/0001558370-23-008137.md) | Quarterly report, period 2023-03-31 | 0001558370-23-008137 |
| 2023-05-04 | 16:18 ET | [8-K](/filings/0001104659-23-056018.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-23-056018 |
| 2023-04-12 | 16:02 ET | [DEF 14A](/filings/0001104659-23-044557.md) | Proxy statement, period 2023-05-25 | 0001104659-23-044557 |

Page 1 of 4. [Older](/companies/ptgx/filings.md?page=2)
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 27, 2026, 17:29 ET. No prices; not investment advice.