J&J makes $1B move for Firefly Bio, Carolyn Bertozzi's twist on ADCs in KRAS field

Carolyn Bertozzi at #JPM24 (Brian Benton Photography) June 8, 2026 10:53 AM EDT StartupsDealsPharma J&J makes $1B move for Fire­fly Bio, Car­olyn Bertozzi's twist on AD­Cs in KRAS field Kyle LaHucik Biotech Correspondent John­son & John­son is mak­ing an­oth­er ear­ly-stage on­col­o­gy deal, dish­ing out $1 bil­lion in cash to ac­quire Fire­fly Bio, a pre­clin­i­cal start­up work­ing on de­grad­er … Sign up to read this article for free. Get free access to a limited number of articles, plus choose newsletters to get straight to your inbox. SIGN UP LOG IN BECOME A PREMIUM SUBSCRIBER