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: August 15, 2002 (Date of earliest event reported) ------------------------- TRANSACTION SYSTEMS ARCHITECTS, INC. (Exact name of registrant as specified in its charter) Delaware 0-25346 47-0772104 (State or other jurisdiction (Commission (I.R.S.Employer of incorporation) File Number) Identification No.) 224 South 108th Avenue, Omaha, Nebraska 68154 (Address of principal executive offices, including zip code) (402) 334-5101 (Registrant's telephone number, including area code) ------------------------- Item 5. Other Events. On August 15, 2002, Transaction Systems Architects, Inc. issued a press release announcing receipt of a letter from The Nasdaq Stock Market, Inc. A copy of the press release is attached as an exhibit to this Form 8-K. Item 7. Financial Statements and Exhibits. (c) Exhibits. 99.1 Press Release dated August 15, 2002. SIGNATURE 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. TRANSACTION SYSTEMS ARCHITECTS, INC. Date: August 16, 2002 By: /s/ Dwight G. Hanson ------------------------------------- Dwight G. Hanson Chief Financial Officer, Treasurer and Senior Vice President EXHIBIT INDEX Exhibit Number Description 99.1 Press Release dated August 15, 2002