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): October 7, 2002 ------------------ ASPEN TECHNOLOGY, INC. -------------------------------------------------- (Exact Name of Registrant as Specified in Charter) DELAWARE 0-24786 04-2739697 -------------------------------------------------------------------------------- (State or Other Jurisdiction (Commission (I.R.S. Employer of Incorporation) File No.) Identification No.) Ten Canal Park, Cambridge, Massachusetts 02141 ---------------------------------------------------- (Address of Principal Executive Office and Zip Code) (617) 949-1000 ---------------------------------------------------- (Registrant's Telephone Number, Including Area Code) ------------------------ ITEM 5. OTHER EVENTS. On October 7, 2002, Aspen Technology, Inc. issued a press release announcing preliminary financial results for the fiscal quarter ended September 30, 2002. A copy of the press release is attached hereto as Exhibit 99. ITEM 7. FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS. (a) Financial Statements of Business Acquired Not applicable. (b) Pro Forma Financial Information Not applicable. (c) Exhibits EXHIBIT NUMBER DESCRIPTION -------- ----------- 99 Press release. 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 thereunto duly authorized. Dated: October 10, 2002 ASPEN TECHNOLOGY, INC. By: /s/ Lisa W. Zappala --------------------------------- Lisa W. Zappala Senior Vice President and Chief Financial Officer