Firefly Bio

Developer of antibody drug conjugates for the treatment of cancer

placeSan Francisco, California, United States calendar_todayFounded 2022 language fireflybiologics.com

Innovation

5 patent families — focus: Human necessities, Chemistry & metallurgy; filing pace accelerating. Cited 1,029 times.

YearFilings
20231
20243
20253
20263

Social engagement

Social engagement: 12.3K social following, 2 posts in the last 12 months — below the industry typical range.

Investor mix

4 investors on record; lead investors include Versant Ventures.

Investor typeCountShare
Venture capital250%
Other / undisclosed250%

Hiring activity

No recent openings observed

No roles tracked in the last 12 months

19 Jun 2025 · SR. RESEARCH ASSOCIATE, IN VITRO BIOLOGY · Sunnyvale

1 Nov 2024 · Scientist, Biology · null

Based on job postings tracked across public sources.

Recent activity

1 Dec 2025
Recognition
13 Oct 2025
Leadership hire
Chief Scientific Officer
Coming soon