UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES AND EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 o TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO Commission file number 001-14775 DMC Global Inc. (Exact name of Registrant as Specified in its Charter) Delaware 84-0608431 (State of Incorporation or Organization) (I.R.S. E ...