PTC Therapeutics stock jumps on royalty deal worth up to $1.5 billion By: MarketWatch October 19, 2023 at 09:18 AM EDT Shares gain 12% as PTC says proceeds of deal will be used to retire debt Read More >> Related Stocks: Ptc Therapeutics Roche Holding AG Basel American Depositary Shares Royalty Pharma Plc Cl A