FireFly Bio Overview

  • Year Founded
  • 2022

Year Founded

  • Status
  • Acquired/​Merged

  • Employees
  • 26

Employees

  • Latest Deal Type
  • M&A

  • Latest Deal Amount
  • $1B

FireFly Bio General Information

Description

Operator of an antibody-drug conjugate-based healthcare platform intended to treat cancer using degradable proteins. The company's platform uses linker technology to join modalities, decreasing free payload in circulation and minimizing uptake in healthy cells, enabling the healthcare industry to create potent and precise medicines for cancer.

Contact Information

Website
www.fireflybiologics.com
Ownership Status
Acquired/Merged
(Operating Subsidiary)
Financing Status
Formerly VC-backed
Corporate Office
  • 201 Haskins Way, 5th floor
  • South San Francisco, CA 94080
  • United States
Primary Industry
Drug Discovery
Other Industries
Discovery Tools (Healthcare)
Parent Company
Johnson & Johnson
Vertical(s)
HealthTech, Life Sciences, Oncology
Corporate Office
  • 201 Haskins Way, 5th floor
  • South San Francisco, CA 94080
  • United States

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FireFly Bio Valuation & Funding

Deal Type Date Amount Raised to Date Post-Val Status Stage
2. Merger/Acquisition 29-Jul-2026 $1B Completed Generating Revenue
1. Early Stage VC (Series A) 15-Feb-2024 Completed Generating Revenue
To view FireFly Bio’s complete valuation and funding history, request access »

FireFly Bio Cap Table

Stock # of Shares
Authorized		 Par Value Dividend Rate (%) Original
Issue Price		 Liquidation Liquidation
Pref. Multiple		 Conversion Price % Owned
Series A
Seed
To view FireFly Bio’s complete cap table history, request access »

FireFly Bio Comparisons

Description
Primary
Industry
HQ Location
Employees
Total Raised
Post Valuation
Last
Financing
Details
Operator of an antibody-drug conjugate-based healthcare platform intended to treat cancer using degradable proteins. The
Drug Discovery
South San Francisco, CA
26 As of 2026

San Diego, CA
 

Wilmington, DE
 
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FireFly Bio Competitors (69)

One of FireFly Bio’s 69 competitors is BioTheryx, a Venture Capital-Backed company based in San Diego, CA.

Company Name Financing Status Location Employees Total Raised Last Financing Date/Type Last Financing Amount
BioTheryx Venture Capital-Backed San Diego, CA
Prelude Therapeutics Formerly VC-backed Wilmington, DE
Orum Therapeutics Formerly VC-backed Daejeon, South Korea
AsherBio Venture Capital-Backed South San Francisco, CA
Arvinas Formerly VC-backed New Haven, CT
You’re viewing 5 of 69 competitors. Get the full list »

FireFly Bio Patents

  • 18

    Total Documents Applications and Grants

  • Total Patents Families

  • Granted

  • 13

    Pending

  • Expiring in next 12 mo

FireFly Bio Recent Patent Activity

Publication ID Patent Title Status First Filing Date Technology (CPC) Citations
WO-2026217512-A2 Kras degrader antibody conjugates and uses thereof Pending 08-Apr-2025
WO-2026006689-A2 Bcl-xl degrader antibody conjugates and uses thereof Pending 28-Jun-2024
WO-2026006689-A3 Bcl-xl degrader antibody conjugates and uses thereof Pending 28-Jun-2024
WO-2026006688-A2 Degrader antibody conjugates and uses thereof Pending 28-Jun-2024
WO-2026006688-A3 Degrader antibody conjugates and uses thereof Pending 28-Jun-2024 A61K47/6889
To view FireFly Bio’s complete patent history, request access »

FireFly Bio Signals

Growth Rate

Weekly
Growth
Weekly Growth

Size Multiple

Median
Size Multiple

Key Data Points

Similarweb Unique Visitors

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FireFly Bio Former Investors (4)

Investor Name Investor Type Holding Investor Since Participating Rounds
Decheng Capital Venture Capital Minority
Lilly USA Corporation Minority
MPM BioImpact Venture Capital Minority
Versant Ventures Venture Capital Minority
To view FireFly Bio’s complete investors history, request access »

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FireFly Bio FAQs

  • When was FireFly Bio founded?

    FireFly Bio was founded in 2022.

  • Where is FireFly Bio headquartered?

    FireFly Bio is headquartered in South San Francisco, CA.

  • What is the size of FireFly Bio?

    FireFly Bio has 26 total employees.

  • What industry is FireFly Bio in?

    FireFly Bio’s primary industry is Drug Discovery.

  • Is FireFly Bio a private or public company?

    FireFly Bio is a Private company.

  • What is the current valuation of FireFly Bio?

    The current valuation of FireFly Bio is .

  • What is FireFly Bio’s current revenue?

    The current revenue for FireFly Bio is .

  • How much funding has FireFly Bio raised over time?

    FireFly Bio has raised $94M.

  • Who are FireFly Bio’s investors?

    Decheng Capital, Lilly USA, MPM BioImpact, and Versant Ventures have invested in FireFly Bio.

  • Who are FireFly Bio’s competitors?

    BioTheryx, Prelude Therapeutics, Orum Therapeutics, AsherBio, and Arvinas are some of the 69 competitors of FireFly Bio.

  • When was FireFly Bio acquired?

    FireFly Bio was acquired on 29-Jul-2026.

  • Who acquired FireFly Bio?

    FireFly Bio was acquired by Johnson & Johnson.

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