IO Biotech, Inc. — Investor Relations & Filings
IO Biotech, Inc. is a clinical-stage biopharmaceutical company developing novel, immune-modulatory therapeutic cancer vaccines. The company's proprietary T-win technology platform is engineered to create dual-action vaccines that activate the patient's T cells to simultaneously target and eliminate both cancer cells and immune-suppressive cells within the tumor microenvironment. These off-the-shelf therapies are intended to improve outcomes for patients with various solid tumors. The lead product candidate, Cylembio® (IO102-IO103), is being evaluated in clinical trials for melanoma and other cancers, while additional pipeline candidates are in preclinical development.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| 8-K - IO Biotech, Inc. (0001865494) (Filer) | 2026-03-31 | English | |
| 8-K Filing | 2026-02-13 | English | |
| SCHEDULE 13G/A Filing | 2026-02-13 | English | |
| SCHEDULE 13G Filing | 2026-02-06 | English | |
| 8-K Filing | 2026-01-30 | English | |
| Major Shareholding Notification 2026 | 2026-01-23 | English |
Browse filings by year
6 years| ID | Filing | Released | Lang | Actions | |
|---|---|---|---|---|---|
|
2026
7 filings
| |||||
| 33114886 | 8-K - IO Biotech, Inc. (0001865494) (Filer) | 2026-03-31 | English | ||
| 32118566 | 8-K Filing | 2026-02-13 | English | ||
| 32118523 | SCHEDULE 13G/A Filing | 2026-02-13 | English | ||
| 32118548 | SCHEDULE 13G Filing | 2026-02-06 | English | ||
| 32118544 | 8-K Filing | 2026-01-30 | English | ||
| 13468661 | Major Shareholding Notification 2026 | 2026-01-23 | English | ||
| 13468663 | 8-K | 2026-01-21 | English | ||
|
2025
8 filings
| |||||
| 13468665 | 8-K | 2025-12-19 | English | ||
| 13468666 | 8-K | 2025-11-21 | English | ||
| 13468669 | 8-K | 2025-11-18 | English | ||
| 13468670 | Major Shareholding Notification 2025 | 2025-11-15 | English | ||
| 13468675 | 10-Q | 2025-11-14 | English | ||
| 13468676 | 8-K | 2025-11-14 | English | ||
| 13468677 | Major Shareholding Notification 2025 | 2025-11-05 | English | ||
| 13468679 | 8-K | 2025-09-29 | English | ||
Market data
Market data not available
Price history
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IO Biotech, 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/34883/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=34883 | 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=34883 | 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=34883 \ -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": 34883}, 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 IO Biotech, Inc. (id: 34883)"
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