Sonnet BioTherapeutics Holdings, Inc. — Investor Relations & Filings
Sonnet BioTherapeutics Holdings, Inc. is a clinical-stage biotechnology company that develops innovative biologic medicines, primarily for oncology. The company's proprietary Fully Human Albumin Binding (FHAB) platform is designed to improve the therapeutic properties of cytokines and other biologics. The FHAB technology utilizes a single-chain antibody fragment that binds to human serum albumin, enabling targeted delivery of therapeutic payloads directly to tumor tissue. This approach aims to enhance drug penetration, retention, and local activation within the tumor microenvironment, potentially increasing efficacy while minimizing systemic toxicity. Sonnet's pipeline includes several cytokine-derived therapeutic candidates in various stages of clinical development.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| Regulatory Filings 2025 | 2025-12-17 | English | |
| Regulatory Filings 2025 | 2025-12-17 | English | |
| Regulatory Filings 2025 | 2025-12-17 | English | |
| Regulatory Filings 2025 | 2025-12-17 | English | |
| Regulatory Filings 2025 | 2025-12-17 | English | |
| Regulatory Filings 2025 | 2025-12-17 | English |
| ID | Filing | Released | Lang | Actions | |
|---|---|---|---|---|---|
|
2025
15 filings
| |||||
| 11270712 | Regulatory Filings 2025 | 2025-12-17 | English | ||
| 11270714 | Regulatory Filings 2025 | 2025-12-17 | English | ||
| 11270716 | Regulatory Filings 2025 | 2025-12-17 | English | ||
| 11270718 | Regulatory Filings 2025 | 2025-12-17 | English | ||
| 11270720 | Regulatory Filings 2025 | 2025-12-17 | English | ||
| 11270721 | Regulatory Filings 2025 | 2025-12-17 | English | ||
| 11270723 | Regulatory Filings 2025 | 2025-12-17 | English | ||
| 11270722 | Regulatory Filings 2025 | 2025-12-17 | English | ||
| 11270725 | Regulatory Filings 2025 | 2025-12-17 | English | ||
| 11270724 | Regulatory Filings 2025 | 2025-12-17 | English | ||
| 11270728 | Regulatory Filings 2025 | 2025-12-17 | English | ||
| 11270727 | Regulatory Filings 2025 | 2025-12-17 | English | ||
| 11270729 | Regulatory Filings 2025 | 2025-12-17 | English | ||
| 11270730 | Regulatory Filings 2025 | 2025-12-17 | English | ||
| 11270733 | Regulatory Filings 2025 | 2025-12-17 | English | ||
Market data
Market data not available
Price history
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Sonnet BioTherapeutics Holdings, 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/34937/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=34937 | 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=34937 | All ISINs registered to this company |
| GET | /api/filing-types/ | Reference: every filing-type code + category |
cURL
$ curl https://api.financialreports.eu/api/filings/?company=34937 \ -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": 34937}, 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 Sonnet BioTherapeutics Holdings, Inc. (id: 34937)"
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