Merck to buy Prometheus Biosciences for $10.8 billion By: MarketWatch April 16, 2023 at 16:47 PM EDT Merck & Co. Inc. announced Sunday a deal to acquire Prometheus Biosciences Inc. for $200 a share, or about $10.8 billion. Read More >> Related Stocks: Merck & Co Prometheus Biosciences, Inc. - Common Stock
