At close: June 4 at 4:54:56 PM GMT-3 ...

At close: June 10 at 4:48:53 PM GMT-3 ...

At close: 12 June at 4:00:02 pm GMT-4 ...

Price Why Merck & Co., Inc.’s (MRK) Stock Is Up 5.07% As of Monday, May 12, Merck & Co., Inc.’s MRK share price has surged by 5.07%, which has investors questioning if this is right time to sell.