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Spiral Therapeutics

South San Francisco, CA · Founded 2016 · Privately Held (backing)

Developer of drug therapies designed to treat inner ear disorders. Spiral Therapeutics is based in South San Francisco, CA and was founded in 2016. It was valued at $52 million at its later-stage round in Apr 2026, the last priced event on record. It has raised $51.2 million across 3 recorded rounds; the latest was a $27.1 million early-stage round in Sep 2025.

PMV mark · valuation
$52.0M
Oct 2026
Priced at
its later-stage round
Apr 2026
Total raised
$51.2M
Last round
Early Stage VC
Sep 2025

Spiral Therapeutics key facts

as of Oct 2026
  • Developer of drug therapies designed to treat inner ear disorders.
  • Spiral Therapeutics is valued at approximately $52.0M as of Oct 2026, set at its later-stage round, Apr 2026; nothing has traded since, per PrivateMarketView’s mark.
  • It has raised $51.2M across 3 recorded rounds; the latest was Early Stage VC ($27.1M) in Sep 2025.
  • Notable investors include StartX (US), Catalio Capital Management, Inveready Asset Management, Wille Finance, Albert Armengol — 14 tracked in total.
  • Spiral Therapeutics has filed 4 Form Ds with the SEC since 2018, most recently Apr 2026 ($27.1M sold to 34 investors).
  • Status: Privately Held (backing).
PrivateMarketView mark
MEDIUM confidence
$52.0M

Valued at $52.0M at its later-stage round, Apr 2026. Nothing has traded since.

set by its last priced roundas of Oct 2026question about this number?
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Spiral Therapeutics funding rounds

3 rounds
Sep 2025Early Stage VC$27.1MSEC filing▮
Oct 2022Early Stage VC$10.9MSEC filing▮
Dec 2018Early Stage VC$8.5MSEC filing▮
Full funding history →

Spiral Therapeutics valuation

Spiral Therapeutics was valued at $52 million at its later-stage round in Apr 2026. That is the last priced event on record: no secondary trade or institutional fund mark has moved the figure since.

How much has Spiral Therapeutics raised?

Spiral Therapeutics has raised $51.2 million across 3 recorded rounds since 2018. The largest was an $8.5 million early-stage round in Dec 2018; the most recent was a $27.1 million early-stage round in Sep 2025.

Spiral Therapeutics has filed 4 Form Ds with the SEC since 2018, most recently in Apr 2026 ($27.1 million sold to 34 investors).

Spiral Therapeutics investors

14 investors are on record for Spiral Therapeutics, including StartX (US), Catalio Capital Management, Inveready Asset Management and Wille Finance. By type, the record holds 2 venture capital firms, 2 family offices and 1 angel investor. The early-stage round in Sep 2025 drew 34 investors.

About Spiral Therapeutics

Developer of drug therapies designed to treat inner ear disorders. The company offers therapies targeting acute and subacute hearing loss and balance conditions, enabling patients to access treatment options for the prevention and management of hearing loss.

Sector
Healthcare
HQ
South San Francisco, CA, United States
Founded
2016
Employees
10
Ownership
Privately Held (backing)

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