Protagonist Therapeutics, Inc — All Filings
657 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-036319 | Mar 27, 2026 | Mar 26, 2026 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-036318 | Mar 27, 2026 | Mar 26, 2026 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-036317 | Mar 27, 2026 | Mar 26, 2026 |
| SCHEDULE 13G/A | — | 0000102909-26-002110 | Mar 27, 2026 | — |
| 144 | — | 0001950047-26-003020 | Mar 26, 2026 | — |
| 144 | — | 0001950047-26-003018 | Mar 26, 2026 | — |
| 144 | — | 0001950047-26-003011 | Mar 26, 2026 | — |
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-034736 | Mar 25, 2026 | Mar 23, 2026 |
| 144 | — | 0001968582-26-000318 | Mar 24, 2026 | — |
| S-8 | FORM S-8 | 0001104659-26-019736 | Feb 25, 2026 | — |
| 10-K | 10-K | 0001104659-26-019696 | Feb 25, 2026 | Dec 31, 2025 |
| 8-K | FORM 8-K | 0001104659-26-019658 | Feb 25, 2026 | — |
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-017176 | Feb 18, 2026 | Feb 17, 2026 |
| 144 | — | 0001950047-26-001404 | Feb 17, 2026 | — |
| SCHEDULE 13G/A | — | 0001493215-26-000042 | Feb 17, 2026 | — |
| SCHEDULE 13G | — | 0000902219-26-000033 | Feb 10, 2026 | — |
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-011575 | Feb 6, 2026 | — |
| SCHEDULE 13G/A | — | 0000908834-26-000054 | Feb 6, 2026 | — |
| 144 | — | 0001950047-26-000988 | Feb 6, 2026 | — |
| SCHEDULE 13G/A | — | 0000102909-26-000253 | Jan 30, 2026 | — |
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-007129 | Jan 27, 2026 | Jan 23, 2026 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-007128 | Jan 27, 2026 | — |
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-007127 | Jan 27, 2026 | Jan 23, 2026 |
| 144 | — | 0001950047-26-000710 | Jan 27, 2026 | — |
| 144 | — | 0001950047-26-000698 | Jan 27, 2026 | — |
| 144 | — | 0001950047-26-000681 | Jan 26, 2026 | — |
| 144 | — | 0001950047-26-000655 | Jan 23, 2026 | — |
| 144 | — | 0001968582-26-000059 | Jan 23, 2026 | — |
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-005443 | Jan 21, 2026 | Jan 20, 2026 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-005442 | Jan 21, 2026 | Jan 20, 2026 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-005440 | Jan 21, 2026 | Jan 20, 2026 |
| 144 | — | 0001104659-26-005438 | Jan 21, 2026 | — |
| 144 | — | 0001104659-26-005437 | Jan 21, 2026 | — |
| 144 | — | 0001104659-26-005435 | Jan 21, 2026 | — |
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-003386 | Jan 13, 2026 | Jan 9, 2026 |
| 8-K | FORM 8-K | 0001104659-26-002724 | Jan 12, 2026 | — |
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-001479 | Jan 6, 2026 | Jan 2, 2026 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-001478 | Jan 6, 2026 | Jan 2, 2026 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-001477 | Jan 6, 2026 | Jan 2, 2026 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-001476 | Jan 6, 2026 | Jan 2, 2026 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-001475 | Jan 6, 2026 | Jan 2, 2026 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-001474 | Jan 6, 2026 | Jan 2, 2026 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-001472 | Jan 6, 2026 | Jan 2, 2026 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-001471 | Jan 6, 2026 | Jan 2, 2026 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-25-115399 | Nov 24, 2025 | Nov 21, 2025 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-25-114082 | Nov 19, 2025 | Nov 17, 2025 |
| SCHEDULE 13G/A | — | 0000921895-25-003110 | Nov 14, 2025 | — |
| SCHEDULE 13G/A | — | 0001172661-25-004833 | Nov 14, 2025 | — |
| 10-Q | 10-Q | 0001104659-25-107816 | Nov 6, 2025 | Sep 30, 2025 |
| 8-K | FORM 8-K | 0001104659-25-107753 | Nov 6, 2025 | — |