Protagonist Therapeutics surges after media reports J&J in talks to buy co

Protagonist Therapeutics

10/10/2025 16:38

** Shares of Protagonist Therapeutics PTGX.O rise 28.3% to an all-time high of $86

** Johnson & Johnson JNJ.N is in discussions to buy PTGX, the Wall Street Journal reports, citing people familiar with the matter

** A deal is not guaranteed and the exact details being discussed could not be learned - WSJ

** PTGX has a market value of $4.17 billion as of last close - LSEG data

** Up to last close, stock up 71.4% YTD

 (Reporting by Puyaan Singh)

 ((Puyaan.Singh@thomsonreuters.com;))