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: April 30, 2004 ESSEX CORPORATION (Exact name of Registrant as specified in its charter) Commission File No. 0-10772 Virginia 54-0846569 (State or other jurisdiction of (IRS Employer ID No.) incorporation or organization) 9150 Guilford Road Columbia, Maryland 21046-2306 (Address of principal executive office) (Zip Code) Registrant's telephone number, including area code: (301) 939-7000 ESSEX CORPORATION Item 2. Acquisition or Disposition of Assets Pursuant to an Agreement and Plan of Merger dated as of April 28, 2004 (the "Agreement") by and among the Registrant, its wholly-owned subsidiary ("Merger Sub"), Computer Science Innovations, Inc., a Florida corporation ("CSI"), and Computer Science Innovations Employee Stock Ownership Plan, Merger Sub was merged with and into CSI with CSI as the surviving corporation (the "Merger"). The Merger became effective as of April 30, 2004. The terms of the Merger are contained in the Agreement, which is included herewith as Exhibit 2.1. Item 7. Financial Statements and Exhibits (a) The financial statements required by this Item are not included in this initial report on Form 8-K but will be filed by amendment not later than sixty days after the date that the initial report on Form 8-K must be filed. (b) The pro forma financial information of Essex Corporation required by this Item are not included in this initial report on Form 8-K but will be filed by amendment not later than sixty days after the date that the initial report on Form 8-K must be filed. (c) Exhibits Exhibit 2.1 Agreement and Plan of Merger among Essex Corporation, CSI Acquisition Corp., Computer Science Innovations, Inc. and Computer Science Innovations Employee Stock Ownership Plan, dated April 28, 2004 Exhibit 99.1 Press release dated April 30, 2004 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. ESSEX CORPORATION (Registrant) /S/ LEONARD E. MOODISPAW ------------------------------------- DATE: May 3, 2004 Leonard E. Moodispaw President and Chief Executive Officer ESSEX CORPORATION EXHIBIT INDEX (Pursuant to Item 601 of Regulation S-X) Exhibit NUMBER DESCRIPTION AND METHOD OF FILING 2.1 Agreement and Plan of Merger among Essex Corporation, CSI Acquisition Corp., Computer Science Innovations, Inc. and Computer Science Innovations Employee Stock Ownership Plan, dated as of April 28, 2004, filed herewith. 99.1 Press release dated April 30, 2004, filed herewith.