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): July 2, 2001 ART TECHNOLOGY GROUP, INC. (Exact name of registrant as specified in its charter) Delaware 000-26679 04-3141918 (State or other jurisdiction (Commission File Number) (IRS Employer of incorporation) Identification No.) 25 First Street, Cambridge, MA 02141 (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code: (617) 386-1000 Not Applicable (Former name or former address, if changed since last report) Item 5. Other Events On July 2, 2001, Art Technology Group, Inc. issued a press release, which is included as EXHIBIT 99.1 to this report, regarding its corporate restructuring and preliminary operating results for the quarter ended March 31, 2001. Item 7. Financial Statements, Pro Forma Financial Information and Exhibits (c) Exhibits. EXHIBIT NUMBER DESCRIPTION 99.1 Press Release of Art Technology Group, Inc., dated July 2, 2001. 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. Date: July 5, 2001 ART TECHNOLOGY GROUP, INC. By: /s/ Joseph T. Chung ------------------------------ Joseph T. Chung Chairman of the Board, Chief Technology Officer and Treasurer EXHIBIT INDEX 99.1 Press Release of Art Technology Group, Inc., dated July 2, 2001.