Protagonist Therapeutics, Inc SEC filings PTGX
Protagonist Therapeutics, Inc has 706 filings in SEC EDGAR's recent list, going back to Sep 28, 2006. Its latest annual report, Form ARS, was filed on Apr 28, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 5, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| DEFA14A | Additional proxy material | Apr 28, 2026 | — |
| DEF 14A | Proxy statement | Apr 28, 2026 | Jun 17, 2026 |
| DEFA14A | Additional proxy material | Apr 29, 2025 | — |
| DEF 14A | Proxy statement | Apr 29, 2025 | Jun 20, 2025 |
| DEFA14A | Additional proxy material | Apr 26, 2024 | — |
| DEF 14A | Proxy statement | Apr 26, 2024 | Jun 20, 2024 |
| PRE 14A | Preliminary proxy statement | Apr 12, 2024 | Jun 20, 2024 |
| DEFA14A | Additional proxy material | Apr 12, 2023 | — |
| DEF 14A | Proxy statement | Apr 12, 2023 | May 25, 2023 |
| DEFA14A | Additional proxy material | Apr 13, 2022 | — |
| DEF 14A | Proxy statement | Apr 13, 2022 | May 26, 2022 |
| DEFA14A | Additional proxy material | Apr 14, 2021 | — |
| DEF 14A | Proxy statement | Apr 14, 2021 | May 27, 2021 |
| DEFA14A | Additional proxy material | Apr 16, 2020 | — |
| DEF 14A | Proxy statement | Apr 16, 2020 | May 28, 2020 |
| DEFA14A | Additional proxy material | Apr 26, 2019 | — |
| DEF 14A | Proxy statement | Apr 26, 2019 | Jun 7, 2019 |
| DEFA14A | Additional proxy material | May 16, 2018 | — |
| DEFA14A | Additional proxy material | Apr 18, 2018 | — |
| DEF 14A | Proxy statement | Apr 18, 2018 | May 29, 2018 |
| DEFA14A | Additional proxy material | May 23, 2017 | — |
| DEF 14A | Proxy statement | Apr 24, 2017 | May 25, 2017 |
Showing 22 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- PTGX (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Newark, CA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1377121
- Former names
- Protagonist Therapeutics Inc (until Jun 11, 2013); Protagonist Inc (until Sep 28, 2006)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.