Protagonist Therapeutics, Inc — Investor Relations & Filings
Filings indexed
641
across all filing types
Latest filing
2026-05-05
Interim / Quarterly Rep…
Country
US
United States of America
Listing
US
PTGX
Protagonist Therapeutics, Inc. is a clinical-stage biopharmaceutical company that specializes in the discovery and development of peptide-based new chemical entities. The company utilizes its proprietary technology platform to engineer novel oral and injectable peptide therapeutics. Its development pipeline is focused on creating treatments for rare and prevalent diseases, particularly in the areas of hematology and gastroenterology, addressing significant unmet medical needs.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| 10-Q - Protagonist Therapeutics, Inc (0001377121) (Filer) | 2026-05-05 | English | |
| DEF 14A - Protagonist Therapeutics, Inc (0001377121) (Filer) | 2026-04-28 | English | |
| 4 - Protagonist Therapeutics, Inc (0001377121) (Issuer) | 2026-03-28 | English | |
| 4 - Protagonist Therapeutics, Inc (0001377121) (Issuer) | 2026-03-28 | English | |
| 4 - Protagonist Therapeutics, Inc (0001377121) (Issuer) | 2026-03-28 | English | |
| SCHEDULE 13G/A - Protagonist Therapeutics, Inc (0001377121) (Subject) | 2026-03-27 | English |
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Peer group · Manufacture of pharmaceuticals, medicinal chemical and botanical products
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Protagonist Therapeutics, Inc via the API
Pull this company's filings, identifiers, and metadata as JSON or Markdown. Authenticate with your API key, then query by company ID, ISIN, or LEI. Full schema documented in the OpenAPI spec.
Endpoints
| GET | /api/companies/31163/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=31163 | Paginated list of all filings (filterable by type, date, language) |
| GET | /api/filings/{id}/ | Single filing — metadata, document URL, processing status |
| GET | /api/filings/{id}/markdown/ | Filing content as Markdown (PDF → text/tables/figures) |
| GET | /api/isins/?company=31163 | All ISINs registered to this company |
| GET | /api/filing-types/ | Reference: every filing-type code + category |
Full reference: API reference · OpenAPI schema
cURL
$ curl https://api.financialreports.eu/api/filings/?company=31163 \ -H "x-api-key: $FR_API_KEY" \ -H "Accept: application/json"
Python
import requests r = requests.get( "https://api.financialreports.eu/api/filings/", params={"company": 31163}, headers={"x-api-key": API_KEY}, ) filings = r.json()["results"]
MCP server
// MCP server URL https://mcp.financialfilings.com/mcp // Once connected, the LLM can query this company directly: "Pull the latest 5 filings for Protagonist Therapeutics, Inc (id: 31163)"
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