July 29, 2026  |  Breaking News

Johnson & Johnson Completes Acquisition of Firefly Bio, Inc. to Advance Next-Generation Oncology Innovation

Antibody Drug Conjugates Reimagined

Firefly specializes in Degrader Antibody Conjugates (DACs) which combine the unique strengths of ADCs with selective protein degraders. Our state-of-the-art platform results in highly specific delivery of degraders to target tissue.

Firefly lights the way

Accessing new classes of ADC payloads requires new technology. At Firefly, we have developed a proprietary platform to capture this opportunity at scale.​

Firefly lights the way
diverse minds, bright sparks

Diverse minds, bright sparks

Firefly is a team of innovators from diverse backgrounds. We are dedicated to exploring complex and exciting challenges.​

We're looking for
Impactful Dependable Collaborative Positive
individuals to join our quest!

Firefly News

Keep up to date with what’s happening at Firefly!