Gossamer Bio, Inc. — Investor Relations & Filings
Filings indexed
424
across all filing types
Latest filing
2026-03-17
Regulatory Filings
Country
US
United States of America
Listing
US
GOSS
Gossamer Bio, Inc. is a clinical-stage biopharmaceutical company focused on the development and commercialization of its lead investigational product, seralutinib. The company is developing this therapy for the treatment of pulmonary arterial hypertension (PAH) and pulmonary hypertension associated with interstitial lung disease (PH-ILD). Seralutinib is an inhaled inhibitor of PDGFRα/β, CSF1R, and c-KIT, designed for delivery via a dry powder inhaler. The company's goal is to address the needs of patients with these rare diseases.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| 8-K - Gossamer Bio, Inc. (0001728117) (Filer) | 2026-03-17 | English | |
| 10-K - Gossamer Bio, Inc. (0001728117) (Filer) | 2026-03-17 | English | |
| POSASR - Gossamer Bio, Inc. (0001728117) (Filer) | 2026-03-17 | English | |
| 8-K - Gossamer Bio, Inc. (0001728117) (Filer) | 2026-02-23 | English | |
| SCHEDULE 13G/A Filing | 2026-02-17 | English | |
| S-3ASR Filing | 2026-01-28 | English |
Browse filings by year
9 years| ID | Filing | Released | Lang | Actions | |
|---|---|---|---|---|---|
|
2026
12 filings
| |||||
| 32967276 | 8-K - Gossamer Bio, Inc. (0001728117) (Filer) | 2026-03-17 | English | ||
| 32967261 | 10-K - Gossamer Bio, Inc. (0001728117) (Filer) | 2026-03-17 | English | ||
| 32967243 | POSASR - Gossamer Bio, Inc. (0001728117) (Filer) | 2026-03-17 | English | ||
| 32827466 | 8-K - Gossamer Bio, Inc. (0001728117) (Filer) | 2026-02-23 | English | ||
| 31502760 | SCHEDULE 13G/A Filing | 2026-02-17 | English | ||
| 31502775 | S-3ASR Filing | 2026-01-28 | English | ||
| 13088896 | FORM 4 | 2026-01-05 | English | ||
| 13088898 | FORM 4 | 2026-01-05 | English | ||
| 13088897 | FORM 4 | 2026-01-05 | English | ||
| 13088899 | FORM 4 | 2026-01-05 | English | ||
| 13088901 | FORM 4 | 2026-01-05 | English | ||
| 13088911 | FORM 4 | 2026-01-05 | English | ||
|
2025
3 filings
| |||||
| 13088900 | 8-K | 2025-11-05 | English | ||
| 13088905 | 10-Q | 2025-11-05 | English | ||
| 13088906 | FORM 4 | 2025-10-02 | English | ||
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Gossamer Bio, 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/32603/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=32603 | 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=32603 | 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=32603 \ -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": 32603}, 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 Gossamer Bio, Inc. (id: 32603)"
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