Skip to main content
Caplight Logo









Keystone Bio

Keystone Bio

Private
Saint Louis, MichiganHealthcare & Life Scienceshttps://keystonebiotherapeutics.com/

Last Round

VC Round

Mar 13, 2026

Momentum

Top 25%

of companies Caplight tracks

Company Overview

Keystone Bio is a biopharmaceutical company that develops precision anti-bacterial therapeutics and companion diagnostics to target systemic inflammation associated with diseases such as Alzheimer's and cardiovascular conditions.

Sector

Healthcare & Life Sciences

Verticals

Biotechnology, Drug Discovery, Precision Medicine, Clinical Trials

Business Model

B2B

Customer Profile

Services & Consulting

AI Layer

Non-AI

Keywords

monoclonal antibodycompanion diagnosticssystemic inflammationoral-systemic linkbiotechnologyneurodegenerative diseasecardiovascular diseaseclinical trialsPorphyromonas gingivalisbiopharmaprecision medicinedrug developmenttherapeutic developmentoral pathogen

Historical Pricing

Historical view of private secondary pricing and transaction trends.

Unlock Pricing Charts

Sign up to view complete historical pricing and secondary transactions.

Caplight Momentum Score

Proprietary index based on bid/ask volume and sentiment.

View Momentum History

Track how buyer interest and sentiment changes over time.

Keystone Bio Comparables

Compare Keystone Bio with similar companies based on industry and business-model similarity.

Keystone Bio comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Denteric
81%
Lighthouse Pharmaceuticals
80%
AriBio
69%

Keystone Bio Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
VC RoundMar 13, 2026
VC RoundSep 12, 2024

Keystone Bio Investors

Notable investors and investment history

Keystone Bio investors
InvestorRounds
Forefront AnalyticsVC Round

Market signals

Structured signals derived from secondary market and firmographic data.

  • Mar 13, 2026

    Forefront Analytics participated in the VC Round.

  • Sep 12, 2024

    Raised $3M with Forefront Analytics participating.

Keystone Bio Filings

Explore SEC and related filing metadata, where available.

Keystone Bio filings preview — column headings only; records require access
TypeDateAmount OfferedAmount SoldFilingPagesDownload

Filing documents are not displayed on this public page. Request access to learn about available coverage.

Request access

Frequently Asked Questions

Common questions about Keystone Bio's valuation, stock price, and market status.

Is Keystone Bio a public or private company?

Keystone Bio is a private company.

What is the current stock price of Keystone Bio?

Keystone Bio is a private company with no public stock price. Caplight tracks Keystone Bio's secondary market activity and provides MarketPrice™ estimates to Caplight users.

How much is Keystone Bio worth (valuation)?

Valuation information for Keystone Bio is not publicly available.

Can I buy Keystone Bio stock?

Keystone Bio shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors. Visit https://www.caplight.com to learn more.

When was Keystone Bio's last funding round?

Keystone Bio's most recent funding round was VC Round on March 13, 2026.

Who are the main investors in Keystone Bio?

Key investors in Keystone Bio include Forefront Analytics.

Will Keystone Bio IPO soon?

No public IPO plans have been announced for Keystone Bio.

How can I track Keystone Bio secondary market activity?

Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor Keystone Bio's secondary market activity and sign up for updates.

Firmographic Details

HeadquartersSaint Louis, Michigan
Year Founded2017
Last FundingMar 13, 2026

Institutional Data Access

Join leading institutional investors using Caplight to access private market data, discover pricing, and execute secondary block trades.

Requires verified institutional or accredited status.

See something wrong or outdated?