Company · CIK 1865494

# IO Biotech, Inc.

| CIK | [1865494](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001865494) (SEC EDGAR) |
| --- | --- |
| Industry (SIC) | 2834 — Pharmaceutical Preparations |
| Incorporated in | DE |
| Business address | Denmark |
| Listed | no ticker on SEC record today |
| First annual or quarterly report | 2021-12-17 |

## Offerings

 5 registrations

| Registration | Label and status | First filed | Last event | Filings |
| --- | --- | --- | --- | --- |
| 333-288936 | Shelf Effective | 2025-07-24 | 2025-07-31 | 2 |
| 333-287554 | Shelf Effective | 2025-05-23 | 2025-06-11 | 2 |
| 333-274267 | Shelf Effective | 2023-08-30 | 2023-09-08 | 2 |
| 333-269569 | Shelf Effective | 2023-02-03 | 2023-02-10 | 2 |
| 333-260301 | IPO Final prospectus | 2021-10-15 | 2021-11-08 | 5 |

## Filings

 14

| Filed | Filing | Registration | Accession |
| --- | --- | --- | --- |
| 2025-07-31 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1865494/999999999525002438/9999999995-25-002438-index.htm) Declared effective | 333-288936 | 9999999995-25-002438 |
| 2025-07-24 | [S-3](https://www.sec.gov/Archives/edgar/data/1865494/000119312525164495/0001193125-25-164495-index.htm) Shelf registered | 333-288936 | 0001193125-25-164495 |
| 2025-06-11 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1865494/999999999525001891/9999999995-25-001891-index.htm) Declared effective | 333-287554 | 9999999995-25-001891 |
| 2025-05-23 | [S-3](https://www.sec.gov/Archives/edgar/data/1865494/000119312525125831/0001193125-25-125831-index.htm) Shelf registered | 333-287554 | 0001193125-25-125831 |
| 2023-09-08 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1865494/999999999523002615/9999999995-23-002615-index.htm) Declared effective | 333-274267 | 9999999995-23-002615 |
| 2023-08-30 | [S-3](https://www.sec.gov/Archives/edgar/data/1865494/000119312523224946/0001193125-23-224946-index.htm) Shelf registered | 333-274267 | 0001193125-23-224946 |
| 2023-02-10 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1865494/999999999523000385/9999999995-23-000385-index.htm) Declared effective | 333-269569 | 9999999995-23-000385 |
| 2023-02-03 | [S-3](https://www.sec.gov/Archives/edgar/data/1865494/000119312523024343/0001193125-23-024343-index.htm) Shelf registered | 333-269569 | 0001193125-23-024343 |
| 2021-11-08 | [424B4](https://www.sec.gov/Archives/edgar/data/1865494/000119312521323211/0001193125-21-323211-index.htm) Final prospectus | 333-260301 | 0001193125-21-323211 |
| 2021-11-04 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1865494/999999999521004206/9999999995-21-004206-index.htm) Declared effective | 333-260301 | 9999999995-21-004206 |
| 2021-11-01 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1865494/000119312521314634/0001193125-21-314634-index.htm) Amendment | 333-260301 | 0001193125-21-314634 |
| 2021-10-26 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1865494/000119312521308118/0001193125-21-308118-index.htm) Amendment | 333-260301 | 0001193125-21-308118 |
| 2021-10-15 | [S-1](https://www.sec.gov/Archives/edgar/data/1865494/000119312521300173/0001193125-21-300173-index.htm) Registration filed | 333-260301 | 0001193125-21-300173 |
| 2021-06-03 | [DRS](https://www.sec.gov/Archives/edgar/data/1865494/000095012321007502/0000950123-21-007502-index.htm) Draft made public | 377-04959 | 0000950123-21-007502 |

[All filings of this company](https://equitycapital.markets/filings?cik=1865494) · [CSV](https://equitycapital.markets/filings.csv?cik=1865494)

---
Source page: https://equitycapital.markets/company/1865494 · Data: U.S. SEC EDGAR · CC BY 4.0