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Firefly Bio
ActiveOperating status — whether the company still runs independently. “Closed” usually means it was acquired, merged, or shut down.🔥 HighHeat score — how much recent activity & attention the company has (web traffic, news, hiring).📈 Medium growthGrowth score — momentum trend across web traffic, headcount and other growth signals. San Francisco, California, United States Founded 2022 11-50 employees For Profit
Firefly Bio is a biotechnology company that develops targeted cancer therapeutics based on antibody-drug conjugate (ADC) technology.
Firefly Bio was acquired by Johnson & Johnson in 2026 for $1B.
Total Funding
Available in Pro Last Funding
Available in Pro Acquisitions
0
Monthly Visits
Available in Pro Contacts
14
Patents
5
1 trademarks
Company Details
Funding & Financials
Pro- Total funding
- Funding rounds
- Last funding
- Last funding type
- Last funding date
- Funding status
- Total equity funding
- Revenue range
IPO & Stock
- IPO status
- Private
Web Traffic
Pro- Monthly visits
- Global traffic rank
- 6-mo avg visits
- Visit duration (s)
- Pages / visit
- Bounce rate
- Rank change (mo)
Technology & IP
- Active technologies
- 17
- Patents granted
- 5
- Trademarks
- 1
- Top patent class
- Medical Or Veterinary Science; Hygiene
Company Info
- Founded
- 2022
- Employees
- 11-50
- Operating status
- Active
- Company type
- For Profit
- Org types
- company
- Founders
- 3
- News articles
- 59
- HQ
- San Francisco, California, United States
- Region
- San Francisco Bay Area, West Coast, Western US
- Diversity spotlight
- Women Founded
- Exit date
- Jun 8, 2026
Signals & Scores
- Heat score
- High
- Growth score
- Medium
- Trend (7d)
- -0.4
- Trend (30d)
- -2.3
- Trend (90d)
- 9.6
Key People at Firefly Bio
Co-Founder
Co-Founder and Chief Technology Officer
Co-Founder and CSO
CEO
14
professional contacts at Firefly Bio
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