Merck & Co., Inc. (NYSE:MRK) is included in our list of the 11 Best Roth IRA Stocks to Invest in Now. Merck & Co., Inc. (MRK) Reports Positive Topline Results from its Phase 3 CORALreef Lipids Trial A dose bottle of the medication is in the medical tech's hand Merck & Co., Inc. (NYSE:MRK) showcased the potential of enlicitide decanoate, an investigational oral PCSK9 inhibitor for hypercholesterolemia. It did so by reporting positive topline results from its Phase 3 CORALreef Lipids trial on September 2, ...