Octave Bioscience

Menlo Park, CA · Founded 2014 · Privately Held (backing)

Operator of a biomarker-driven precision medicine company intended to improve monitoring and treatment decisions for neurodegenerative diseases. Octave Bioscience is based in Menlo Park, CA and was founded in 2014. Its last reported valuation was $143 million in Jul 2023. It has raised $129 million across 5 recorded rounds; the latest was a $31.8 million early-stage round in Mar 2025.

Last reported valuation
$143.0M
Oct 2026
Priced at
—
Total raised
$129.2M
Last round
Early Stage VC
Mar 2025
What is Octave Bioscience worth?
$143.0Mlast reported valuation · Oct 2026

Octave Bioscience's last reported valuation, Jul 2023. Nothing priced has surfaced since.

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Valuation timeline

0 priced rounds · 32 daily marks since · Sep 2026 – Oct 2026
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Markrounds hold their value until the next priced eventMark, today
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Octave Bioscience funding history

5 rounds
DateRoundRaisedPost-money
Mar 2025Early Stage VC$31.8M▮
Sep 2023Early Stage VC$7.0M▮
Jan 2023Early Stage VC$32.5M▮
Oct 2020Early Stage VC$32.0M▮
Nov 2014Seed Round$2.5M▮
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Octave Bioscience valuation

Octave Bioscience's last reported valuation was $143 million in Jul 2023. No priced round, secondary trade or fund mark has surfaced since.

How much has Octave Bioscience raised?

Octave Bioscience has raised $129 million across 5 recorded rounds since 2014. The largest was a $7 million early-stage round in Sep 2023; the most recent was a $31.8 million early-stage round in Mar 2025.

Octave Bioscience has filed 5 Form Ds with the SEC since 2017, most recently in Mar 2025 ($31.8 million sold to 20 investors).

How Octave Bioscience's valuation is determined

Private company valuations aren’t quoted on an exchange — they’re established in moments: a priced funding round sets a post-money valuation, secondary trades print at a price per share, and SEC-registered funds holding the stock report fair-value marks in their N-PORT filings.

For Octave Bioscience, the most current credible signal sets the number and the older ones confirm it: a live secondary-market price first, then three or more recent prints, then institutional fund marks, and otherwise the last priced round, which never decays. The valuation is the last round’s post-money moved by the price change since that round, so no share count is assumed. Today it is set by last reported valuation. Question about this number? Full methodology →

Frequently asked about Octave Bioscience

What is Octave Bioscience worth?
Octave Bioscience is valued at $143.0M as of Oct 2026. Octave Bioscience's last reported valuation, Jul 2023. Nothing priced has surfaced since.
How much has Octave Bioscience raised?
Octave Bioscience has raised $129.2M in total funding across 5 recorded rounds.
When did Octave Bioscience last raise?
Octave Bioscience last raised in Mar 2025 (Early Stage VC), raising $31.8M.