SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


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                                    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 21, 2003

                           ART TECHNOLOGY GROUP, INC.
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               (Exact name of registrant as specified in charter)

               Delaware                   000-26679               04-3141918
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    (State or other jurisdiction of      (Commission              (IRS Employer
             incorporation               File Number)        Identification No.)


         25 First Street, Cambridge, Massachusetts                  02141
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         (Address of principal executive offices)                 (Zip Code)


        Registrant's telephone number, including area code: 617-386-1000

                                 Not Applicable
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          (Former name or former address, if changed since last report)







Item 12.  Results of Operations and Financial Condition.

On October 21, 2003, we issued a press release announcing our financial results
for the quarter ended September 30, 2003. The full text of the press release is
attached as Exhibit 99.1 to this report.

The information contained in Item 12 of this report and Exhibit 99.1 attached
hereto shall not be deemed "filed" for purposes of Section 18 of the Securities
Exchange Act of 1934 or otherwise subject to the liabilities of that section,
nor shall it be deemed incorporated by reference in any filing under the
Securities Act of 1933 or the Securities Exchange Act of 1934, except as
expressly set forth by specific reference in such a filing.







                                    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.



Date:  October 21, 2003                ART TECHNOLOGY GROUP, INC.

                                       By: /s/ Edward Terino
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                                           Edward Terino, Senior Vice President
                                           and Chief Financial Officer






                                  EXHIBIT INDEX

Exhibit No.                       Description
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99.1                              Press release dated October 21, 2003