content: <PAGE>
  
                        SECURITIES AND EXCHANGE COMMISSION
                               Washington, DC  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):  April 2,2001
  
  
                                    ARIBA, INC.
             --------------------------------------------------------
              (Exact Name of Registrant as Specified in its Charter)
  
  
          Delaware                       0-26299                  77-0439730
  ----------------------------   ------------------------   ----------------------
  (State or Other Jurisdiction   (Commission File Number)      (I.R.S. Employer
      of Incorporation)                                     Identification Number)
  
  
  
                               1565 Charleston Road
                         Mountain View, California  94043
                                  (650) 930-6200
  --------------------------------------------------------------------------------
   (Addresses, including zip code, and telephone numbers, including area code, of
                           principal executive offices)
  
  
  ITEM 5.  OTHER EVENTS.
  
       On April 2, 2001, Ariba, Inc., a Delaware corporation ("Ariba"), Silver
  Merger Corporation, a Delaware corporation and wholly-owned subsidiary of Ariba
  ("Merger Sub"), and Agile Software Corporation, a Delaware corporation
  ("Agile"), entered into a Termination Agreement and Release (the "Termination
  Agreement") pursuant to which the parties mutually agreed to terminate the
  Agreement and Plan of Merger and Reorganization, dated as of January 29, 2001,
  by and among Ariba, Merger Sub and Agile (the "Merger Agreement"). A copy of the
  Termination Agreement is attached hereto as Exhibit 99.1 and is hereby
  incorporated by reference in its entirety.
  <PAGE>
  
       On April 2, 2001, Ariba and Agile issued a joint press release announcing
  the termination of the Merger Agreement.  A copy of the joint press release is
  attached hereto as Exhibit 99.2 and is hereby incorporated by reference in its
  entirety.
  
  
  ITEM 7.  FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS.
  
  
  Exhibit No.      Description.
  ----------       ------------
  
  99.1             Termination Agreement and Release, dated as of April 2, 2001,
                   by and among Ariba, Inc., Silver Merger Corporation and Agile
                   Software Corporation.
  
  99.2             Joint Press Release, dated as of April 2, 2001, by Ariba, Inc.
                   and Agile Software Corporation.
  <PAGE>
  
                                    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.
  
  
                                              ARIBA, INC.
  
  
  DATE:  April 2, 2001                        By: /s/ Robert Calderoni
                                                 -----------------------------
                                                 Robert Calderoni
                                                 Executive Vice President and
                                                 Chief Financial Officer
  <PAGE>
  
                                 INDEX TO EXHIBITS
  
  
  Exhibit Number                             Description
  --------------                             -----------
  
        99.1         Termination Agreement and Release, dated as of April 2, 2001,
                     by and among Ariba, Inc., Silver Merger Corporation and Agile
                     Software Corporation.
  
        99.2         Joint Press Release, dated as of April 2, 2001, by Ariba,
                     Inc. and Agile Software Corporation.
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metadata_filer: {"company-data": {"conformed-name": "ARIBA INC", "cik": "0001084755", "assigned-sic": "7372", "irs-number": "770439730", "state-of-incorporation": "DE", "fiscal-year-end": "0930"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-26299", "film-number": "1594692"}, "business-address": {"street1": "1565 CHARLESTON RD", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94043", "phone": "6509306200"}, "mail-address": {"street1": "1565 CHARLESTON RD", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94043"}}
text: SECURITIES AND EXCHANGE COMMISSION
                               Washington, DC  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):  April 2,2001
  
                                    ARIBA, INC.
             --------------------------------------------------------
              (Exact Name of Registrant as Specified in its Charter)
  
          Delaware                       0-26299                  77-0439730
  ----------------------------   ------------------------   ----------------------
  (State or Other Jurisdiction   (Commission File Number)      (I.R.S. Employer
      of Incorporation)                                     Identification Number)
  
                               1565 Charleston Road
                         Mountain View, California  94043
                                  (650) 930-6200
  --------------------------------------------------------------------------------
   (Addresses, including zip code, and telephone numbers, including area code, of
                           principal executive offices)
  
  ITEM 5.  OTHER EVENTS.
  
       On April 2, 2001, Ariba, Inc., a Delaware corporation ("Ariba"), Silver
  Merger Corporation, a Delaware corporation and wholly-owned subsidiary of Ariba
  ("Merger Sub"), and Agile Software Corporation, a Delaware corporation
  ("Agile"), entered into a Termination Agreement and Release (the "Termination
  Agreement") pursuant to which the parties mutually agreed to terminate the
  Agreement and Plan of Merger and Reorganization, dated as of January 29, 2001,
  by and among Ariba, Merger Sub and Agile (the "Merger Agreement"). A copy of the
  Termination Agreement is attached hereto as Exhibit 99.1 and is hereby
  incorporated by reference in its entirety.
  On April 2, 2001, Ariba and Agile issued a joint press release announcing
  the termination of the Merger Agreement.  A copy of the joint press release is
  attached hereto as Exhibit 99.2 and is hereby incorporated by reference in its
  entirety.
  
  ITEM 7.  FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS.
  
  Exhibit No.      Description.
  ----------       ------------
  
  99.1             Termination Agreement and Release, dated as of April 2, 2001,
                   by and among Ariba, Inc., Silver Merger Corporation and Agile
                   Software Corporation.
  
  99.2             Joint Press Release, dated as of April 2, 2001, by Ariba, Inc.
                   and Agile Software Corporation.
  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.
  
                                              ARIBA, INC.
  
  DATE:  April 2, 2001                        By: /s/ Robert Calderoni
                                                 -----------------------------
                                                 Robert Calderoni
                                                 Executive Vice President and
                                                 Chief Financial Officer
  INDEX TO EXHIBITS
  
  Exhibit Number                             Description
  --------------                             -----------
  
        99.1         Termination Agreement and Release, dated as of April 2, 2001,
                     by and among Ariba, Inc., Silver Merger Corporation and Agile
                     Software Corporation.
  
        99.2         Joint Press Release, dated as of April 2, 2001, by Ariba,
                     Inc. and Agile Software Corporation.