UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15 (d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) December 9, 2004 ------------------------------ ENGINEERED SUPPORT SYSTEMS, INC. ------------------------------------------------------------------------------ (Exact Name of Registrant as Specified in Charter) MISSOURI 0-13880 43-1313242 (State of Incorporation) (Commission File No.) (IRS Employer Identification No.) 201 Evans Lane, St. Louis, Missouri 63121 (Address of principal executive officer) (Zip Code) Registrant's telephone number including area code: (314) 553-4000 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: [ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) [ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Item 1.01 Entry into a Material Definitive Agreement. On December 9, 2004 Engineered Support Systems, Inc. (the Company) announced that it had entered into a binding, definitive agreement to purchase the membership interests of Spacelink International, LLC (Spacelink), a Dulles, Virginia-based firm involved in the design, integration, operation and maintenance of deployed satellite and wireless networks for the U.S. Department of Defense (DoD), the U.S. intelligence community and other forward deployed federal agencies and multinational organizations worldwide. The pending transaction is subject to regulatory and other approvals and the satisfaction of customary closing conditions. The Company expects to complete the transaction within the next sixty days. Item 9.01 Financial Statements and Exhibits. (c) The following exhibit is filed as part of this report: Exhibit Number Description -------------- ----------- 99 Press Release dated December 9, 2004, issued by Engineered Support Systems, Inc. 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. ENGINEERED SUPPORT SYSTEMS, INC. Date: December 9, 2004 BY: /s/ Gary C. Gerhardt ---------------- ---------------------------------------------- Gary C. Gerhardt Vice Chairman and Chief Financial Officer EXHIBIT INDEX Exhibit Number Description -------------- ----------- 99 Press Release dated December 9, 2004, issued by Engineered Support Systems, Inc.