Mosanna Therapeutics
Pioneering a pharmaceutical nasal spray to restore natural airway control for sleep apnea.
Redwood City, United States · Founded 2022 · $80.0M raised
- Headquarters
- Redwood City, California
- Employees
- 1–10
- Founded
- 2022
- Business Model
- B2B
- Website
- mosanna.com
- Total Funding
- $80.0M
- Last Round
- $80.0M Series AJun 2025
- Rounds
- 3
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
About
Mosanna Therapeutics is a clinical-stage biotech company developing a novel pharmaceutical approach to treating obstructive sleep apnea (OSA), which affects an estimated 1 billion people globally. Its lead therapy, MOS118, is an easy-to-use nighttime nasal spray designed to restore the body's natural upper airway reflex during sleep — treating OSA as a neurological and muscular dysfunction rather than a purely mechanical problem. This positions MOS118 as a non-invasive alternative to CPAP and other mechanical treatments. The $80 million Series A was led by Pivotal bioVenture Partners and EQT Life Sciences, with co-leads Forbion, Broadview Ventures, and Norwest. MOS118 is currently in Phase 1 clinical trials, with the new funding advancing it through Phase 2. Mosanna has offices in Redwood City, California and Basel, Switzerland.
Summary
Mosanna Therapeutics is a Biotech company based in Redwood City, United States, founded in 2022. It has raised $80.0M in total across 3 rounds, most recently a $80.0M Series A round in Jun 2025. Investors include Pivotal bioVenture Partners, Forbion Capital Partners and Broadview Ventures.
Tech & App Stack
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Funding History
Jun 2025
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Funding: Seed through Series A. Amounts, valuations, and investors where available.
Investors
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