Executive Change

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (AMENDMENT NO. 1) CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): February 15, 2011 Dynamic Materials Corporation (Exact Name of Registrant as Specified in its Charter) Delaware 0-8328 84-0608431 (State or Other Jurisdiction of Incorporation) (Commission File Number) (I.R.S. Employer Identification No.) 5405 Spine Road Boulder, Colorado 80301 (Address of Principal Executive Offices, Including Zip Code) (303) 665-5700 (Registrant’s Telephone Number, Including Area Code) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: o             Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) o             Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) o             Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) o             Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Item 5.02                      Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. As previously disclosed, effective February 15, 2011, Robert A. Cohen became a director of Dynamic Materials Corporation (the “Company”).  On May 26, 2011, the Board of Directors of the Company appointed Mr. Cohen to serve as a member of both the Compensation Committee and the Audit Committee of the Board of Directors of the Company. 1 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. DYNAMIC MATERIALS CORPORATION Dated: June 2, 2011 By: /s/ Richard A. Santa Richard A. Santa Senior Vice President and Chief Financial Officer 2