Merck(MRK) - 2019 Q1 - Quarterly Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Emerging growth company ☐ Title of each class Trading Symbol(s) Name of each exchange on which registered Common Stock ($0.50 par value) MRK New York Stock Exchange 1.125% Notes due 2021 MRK/21 New York Stock Exchange 0.500% Notes due 2024 MRK 24 New York Stock Exchange 1.875% Notes due 2026 MRK/26 New York Stock Exchange 2.500% Notes due 2034 MRK/34 New York Stock Exchange FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 ...