# Ethyreal Bio funding rounds and investors

As of 14 Oct 2026, Ethyreal Bio has raised $101M across 1 verified round on record; latest: $101 million Series A, announced 10 Jun 2026.

Ethyrealbio develops investigational therapies targeting Thyroid Eye Disease and Graves' Disease for patients.

Website: https://ethyrealbio.com  
Headquarters: Massachusetts  
Page: https://fireround.dev/companies/ethyrealbio.com

## Verified rounds

| Announced | Round | Amount | Lead investors | Other investors | Sources |
| --- | --- | --- | --- | --- | --- |
| 2026-06-10 | Series A | $101 million | not stated | Atlas Ventures, Medicxi | [fiercebiotech.com](https://www.fiercebiotech.com/biotech/ethyreal-bio-manifests-101m-pack-biotechs-gunning-amgens-tepezza) |

Source: Fireround (https://fireround.dev), an open-source funding feed. Each round is checked against the pages listed with it.