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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 25%

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

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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.

  • Apr 13, 2026

    Grew 67% QoQ, from 6 to 10 employees.

Fortitude Biomedicines Filings

SEC and related filings with document metadata.

Data table
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Fortitude Biomedicines Filings

SEC and related filings with document metadata.

Frequently Asked Questions

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

Firmographic Details

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

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