Yarrow Biosciences
AcquiredFirst-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
- Website
- yarrowbioscience.com
- Total Funding
- $200.0M
- Last Round
- $200.0M Series ADec 2025
- Rounds
- 1
- Acquisition Date
- Dec 2025
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
Indexed holds 2 funding rounds and 7 investors for this company. The full record is or through the API.
About
Yarrow Bioscience is a clinical-stage biotechnology company developing transformative therapies for autoimmune thyroid diseases. Its lead candidate, YB-101, is a potentially first-in-class anti-TSHR monoclonal antibody designed to disrupt the central mechanism of Graves’ disease and thyroid eye disease. The company’s veteran team focuses on giving patients a treatment option that directly inhibits the central mechanism of these autoimmune conditions.
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 & Exit History
Dec 2025
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Funding: Series A. Amounts, valuations, and investors where available.
Investors
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