Yarrow Biosciences

Acquired

First-in-class anti-TSHR antibody for autoimmune thyroid diseases

New York, United States · Founded 2021 · $200.0M raised

Headquarters
New York, New York
Employees
1–10
Founded
2021
Business Model
B2B
Total Funding
$200.0M
Last Round
$200.0M Series ADec 2025
Rounds
1

About

Yarrow Bioscience is a clinical-stage biotechnology company developing a first-in-class anti-TSHR antibody (YB-101/GS-098) targeting Graves' disease and thyroid eye disease. Signed $1.37B licensing with GenSci; reverse merger with Vyne Dec 2025.

Summary

Yarrow Biosciences is a Biotech company based in New York, United States, founded in 2021. It has raised $200.0M in total across 1 round, most recently a $200.0M Series A round in Dec 2025. Investors include RTW Investments, OrbiMed and Janus Henderson Investors.

Tech & App Stack

4 technologies & apps tracked

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Funding History

Series ASeries ADec 2025
$200.0M

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Series A through Merger — per-round amounts, valuations, and who invested in each round.

Investors

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