DMC (BOOM) - 2020 Q3 - Quarterly Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Title of each class Trading Symbol Name of exchange on which registered Common Stock, $0.05 Par Value BOOM The Nasdaq Global Select Market (Mark One) Form 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES AND EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2020 OR ☐ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO . Commission file numbe ...