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Fortitude Biomedicines

Fortitude Biomedicines

Private
Waltham, MassachusettsHealthcare & Life Scienceshttps://fortitudebio.com/

Last Round

Seed

Jan 26, 2026

Total Funding Raised

$13M

Momentum

Top 50%

of companies Caplight tracks

Company Overview

Fortitude Biomedicines is a biotechnology company that develops antibody-based biotherapeutics, including antibody-drug conjugates, for the treatment of oncology and autoimmune diseases.

Sector

Healthcare & Life Sciences

Verticals

Biotechnology, Drug Discovery, Precision Medicine, Clinical Trials

Business Model

B2B

Customer Profile

Services & Consulting

AI Layer

Non-AI

Keywords

antibody-drug conjugatesADCmolecular gluetargeted protein degradationbiotherapeuticsbispecific antibodyautoimmune disease therapyoncology therapeuticstargeted therapydrug discoveryprotein degraderbiotech startuppreclinical drug development

Historical Pricing

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Caplight Momentum Score

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Fortitude Biomedicines Comparables

Compare Fortitude Biomedicines with similar companies based on industry and business-model similarity.

Fortitude Biomedicines comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Breakthru Medicine
82%
PROTIER Biotech Inc.
79%
Johnson & Johnson
79%

Fortitude Biomedicines Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
SeedJan 26, 2026

Key People

Founding team and executive leadership

Jesse Chen

Founder, President And CEO

Founding Team

Fortitude Biomedicines Investors

Notable investors and investment history

Fortitude Biomedicines investors
InvestorRounds
Taihill VentureSeed

Market signals

Structured signals derived from secondary market and firmographic data.

  • May 27, 2026

    Grew 71% QoQ from 7 to 12 employees.

  • May 12, 2026

    Monthly visitors increased by 45% MoM.

Fortitude Biomedicines Filings

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Fortitude Biomedicines filings preview — column headings only; records require access
TypeDateAmount OfferedAmount SoldFilingPagesDownload

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Frequently Asked Questions

Common questions about Fortitude Biomedicines's valuation, stock price, and market status.

Is Fortitude Biomedicines a public or private company?

Fortitude Biomedicines is a private company.

What is the current stock price of Fortitude Biomedicines?

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

How much is Fortitude Biomedicines worth (valuation)?

Valuation information for Fortitude Biomedicines is not publicly available.

Can I buy Fortitude Biomedicines stock?

Fortitude Biomedicines 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 Fortitude Biomedicines's last funding round?

Fortitude Biomedicines's most recent funding round was Seed on January 26, 2026.

Who are the main investors in Fortitude Biomedicines?

Key investors in Fortitude Biomedicines include Taihill Venture.

Will Fortitude Biomedicines IPO soon?

No public IPO plans have been announced for Fortitude Biomedicines.

How can I track Fortitude Biomedicines secondary market activity?

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

Firmographic Details

HeadquartersWaltham, Massachusetts
Employee Range12
Year Founded2025
Last FundingJan 26, 2026

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