UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 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): May 21, 2002 Hadron, Inc. (Exact name of registrant as specified in its charter) New York 0-5404 11-2120726 - ---------------------------- ------------------------ ------------------- (State or other jurisdiction (Commission File Number) (IRS Employer of incorporation) Identification No.) 5904 Richmond Highway, Suite 300, Alexandria, VA 22309 --------------------------------------------------------- (Address of principal executive offices) (Zip Code) (703) 329-9400 ---------------------------------------------------- (Registrant's telephone number, including area code) N/A ------------------------------------------------------------------ (Former name, former address and former fiscal year, if changed since last report) Item 5. Other Events. Hadron, Inc. (OTC:BB:HDRN) issued a press release on May 21, 2002 regarding its Advanced Biosystems, Inc. subsidiary. A copy of the press release is attached as an exhibit. Item 7. Financial Statements and Exhibits (c) Press Release dated May 21, 2002 is included herein as Exhibit 99. 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. HADRON, INC. Date: May 22, 2002 By: /s/ Sterling Phillips ---------------------------- Sterling Phillips Chief Executive Officer INDEX TO EXHIBITS Exhibit No. Exhibit 99 Press Release dated May 21, 2002