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Spear Bio

Spear Bio

Private
Woburn, MassachusettsHealthcare & Life Scienceshttps://spear.bio/

Last Round

Series A

Jul 29, 2024

Total Funding Raised

$45M

Momentum

Top 25%

of companies Caplight tracks

Company Overview

Spear Bio is a biotechnology company that develops ultrasensitive immunoassay technology for protein biomarker detection in research and clinical diagnostics.

Sector

Healthcare & Life Sciences

Verticals

Biotechnology, Biotech Equipment, Drug Discovery, Clinical Trials

Business Model

B2B

Customer Profile

Hardware Sales, Services & Consulting

AI Layer

Non-AI

Keywords

immunoassayprotein biomarkerneurodegenerative diseasebiomarker detectionclinical diagnosticslaboratory automationprotein analysislife science toolsassay developmentCROclinical research organizationproteomicsbenchtop analyzerbiotech reagentsdrug discovery tools

Historical Pricing

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Caplight Momentum Score

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Spear Bio Comparables

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

Spear Bio comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Alamar Biosciences
76%
Quantum Diamond Technologies Inc.
76%
Bio-Techne Corporation
74%

Spear Bio Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Series AJul 29, 2024
SeedNov 29, 2023

Key People

Founding team and executive leadership

Feng Xuan

Co-Founder & CEO

Founding Team

Zidong Wang

Chief Operating Officer

Executive Team

Spear Bio Investors

Notable investors and investment history

Spear Bio investors
InvestorRounds
CDH InvestmentsSeries A, Seed
Maverick VenturesSeed, Series A
Yonjin CapitalSeries A
Yonghua CapitalSeed
Foresite CapitalSeries A
CDH InvestmentsSeries A, Seed

Market signals

Structured signals derived from secondary market and firmographic data.

  • Jul 24, 2026

    Monthly visitors increased 46% MoM, from 4.1K to 6K.

  • Jun 30, 2026

    Commercial SPEAR S.W.I.F.T. instrument platform now being installed at customer sites.

Recent news

Latest coverage and updates

  • receives_awardAug 11, 2026

    Spear Bio Inc. received award 2026 R&D 100 Award at R&D 100 Awards on Aug 11th '26.

  • attends_eventJul 7, 2026

    Spear Bio Inc. will attend event Alzheimer's Association International Conference(R) 2026 on Jul 12th '26.

  • launchesJul 7, 2026

    Spear Bio Inc. will launch novel Alzheimer's disease immunoassays and fully automated instrument platform at Alzheimer's Association International Conference(R) 2026 on Jul 12th '26.

  • attends_eventJul 7, 2026

    Spear Bio Inc. will attend event AAIC 2026 on Jul 12th '26.

Spear Bio Filings

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

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Frequently Asked Questions

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

Is Spear Bio a public or private company?

Spear Bio is a private company.

What is the current stock price of Spear Bio?

Spear Bio is a private company with no public stock price. No recent secondary market data is available.

How much is Spear Bio worth (valuation)?

Valuation information for Spear Bio is not publicly available.

Can I buy Spear Bio stock?

Spear 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 Spear Bio's last funding round?

Spear Bio's most recent funding round was Series A on July 29, 2024.

Who are the main investors in Spear Bio?

Key investors in Spear Bio include CDH Investments, Foresite Capital.

Will Spear Bio IPO soon?

No public IPO plans have been announced for Spear Bio.

How can I track Spear Bio secondary market activity?

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

Firmographic Details

HeadquartersWoburn, Massachusetts
Employee Range51
Year Founded2021
Last FundingJul 29, 2024

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