Protego Biopharma

San Diego, CA · Founded 2011 · Privately Held (backing)

Developer of a small molecule therapeutics platform designed to reprogram protein folding for the treatment of various systemic amyloid diseases and protein misfolding diseases. Protego Biopharma is based in San Diego, CA and was founded in 2011. Its last reported valuation was $217 million in Mar 2025. It has raised $182 million across 3 recorded rounds; the latest was a $32.9 million early-stage round in Oct 2025.

Last reported valuation
$216.5M
Oct 2026
Priced at
—
Total raised
$182.1M
Last round
Early Stage VC
Oct 2025
How much has Protego Biopharma raised?
$182.1Macross 3 recorded rounds · Dec 2019 – Oct 2025

Most recently, Protego Biopharma raised $32.9M in its Early Stage VC (Oct 2025).

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Protego Biopharma round by round

3 rounds
Oct 2025Early Stage VC$32.9MSEC filing▮
18 investors participated
Oct 2021Later Stage VC$51.0MSEC filing▮
6 investors participated
Dec 2019Seed Round$1.0MSEC filing▮
3 investors participated

How much has Protego Biopharma raised?

Protego Biopharma has raised $182 million in total; 3 of its rounds are on record, from 2019 on. The largest on record was a $51 million later-stage round in Oct 2021; the most recent was a $32.9 million early-stage round in Oct 2025.

Protego Biopharma has filed 3 Form Ds with the SEC since 2019, most recently in Dec 2025 ($32.9 million sold to 18 investors).

Protego Biopharma investors

12 investors are on record for Protego Biopharma, including Lightspeed Venture Partners, Johnson & Johnson Innovation - JLABS, Digitalis Ventures and Forbion. By type, the record holds 4 venture capital firms and 1 private equity firm. The early-stage round in Oct 2025 drew 18 investors.

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Frequently asked about Protego Biopharma

How much has Protego Biopharma raised?
Protego Biopharma has raised $182.1M in total across 3 recorded funding rounds.
When was Protego Biopharma's last funding round?
Protego Biopharma's most recent recorded round was Early Stage VC in Oct 2025, raising $32.9M.