UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 _____________________________________________________ Title of each class Trading Symbol(s) Name of each exchange on which registered Common Stock, $0.001 par value per shareCELC The Nasdaq Stock Market LLC FORM 10-Q _____________________________________________________ (Mark One) ☒QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2020 OR ☐TRANSITION REPORT PU ...