UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 P.O. Box 625737 Cincinnati, Ohio 45262-5737 (Address of Principal Executive Offices) (Zip Code) Title of each class Trading symbol(s) Name of each exchange on which registered Common stock, no par value CTASThe NASDAQ Stock Market LLC (NASDAQ Global Select Market) FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended August 31, 2019 OR ☐ TRANSITION REPORT PURSUAN ...