Roivant, Pfizer shares rise as Roche agrees to buy immunology company for $7.1 billion By: MarketWatch October 23, 2023 at 08:36 AM EDT 'Transformative transaction' for Roivant gives Roche rights to promising inflammatory bowel disease treatment Read More >> Related Stocks: Pfizer Roche Holding AG Basel American Depositary Shares Roivant Sciences Ltd