Ethyreal Bio

Dedicated to improving the lives of people with Thyroid Eye Disease and Graves' Disease

San Francisco, United States · Founded 2024 · $101.0M raised

Employees
1–10
Founded
2024
Business Model
B2B
Total Funding
$101.0M
Last Round
$101.0M SeedJun 2026
Rounds
2

About

Ethyreal Bio is a Cambridge, Massachusetts-based biotechnology company developing precision therapies targeting the thyroid-stimulating hormone receptor (TSHR). Its lead asset, ETHY-001, is a potentially best-in-class anti-TSHR antibody designed to address the root cause of both Graves disease and thyroid eye disease, with clinical studies planned for late 2026.

Summary

Ethyreal Bio is a Biotech company based in San Francisco, United States, founded in 2024. It has raised $101.0M in total across 2 rounds, most recently a $101.0M Seed round in Jun 2026.

Tech & App Stack

5 technologies & apps tracked

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Funding History

SeedJun 2026
$101.0M

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Seed through Series B — per-round amounts, valuations, and who invested in each round.

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