content: <PAGE>
  
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                        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): December 3, 1999
  
  
  
                                INKTOMI CORPORATION
  
              (Exact name of registrant as specified in its charter)
  
  <TABLE>
        Delaware                        000-24339                          94-3238130
  <S>                          <C>                              <C>
  (State of incorporation)     (Commission File Number)         (IRS Employer Identification No.)
  </TABLE>
  
  
               4100 E. Third Avenue, Foster City, California  94404
  
              (Address of principal executive offices of Registrant)
  
  
  
                                  (650) 653-2800
  
               (Registrant's telephone number, including area code)
  
  
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  <PAGE>
  
  Item 5.   Other Events
            ------------
  
       On December 3, 1999, Inktomi Corporation announced that its Board of
  Directors approved a two-for-one stock split of its common stock ("Common
  Stock"). Stockholders of record on December 14, 1999 will be issued a
  certificate representing one additional share of Common Stock for each share of
  Common Stock held on December 14, 1999. The payment date for this stock dividend
  will be on or about December 30, 1999.
  
  
  Item 7.   Financial Statements and Exhibits
            ---------------------------------
  
            (c)  Exhibits
  
                    99.1   Press Release dated December 3, 1999 regarding the
            stock split
  
                                        -2-
  <PAGE>
  
                                    SIGNATURES
  
  
       Pursuant to the requirements of the Securities Exchange Act of 1934, as
  amended, the registrant has duly caused this report to be signed on its behalf
  by the undersigned hereunto duly authorized.
  
  
                                      INKTOMI CORPORATION
  
  
  Dated:  December 3, 1999            By:   /S/ DAVID C. PETERSCHMIDT
                                         ---------------------------------------
                                            David C. Peterschmidt, President and
                                            Chief Executive Officer
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text: ================================================================================
  
                        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): December 3, 1999
  
                                INKTOMI CORPORATION
  
              (Exact name of registrant as specified in its charter)
  
        Delaware                        000-24339                          94-3238130
  (State of incorporation)     (Commission File Number)         (IRS Employer Identification No.)
  4100 E. Third Avenue, Foster City, California  94404
  
              (Address of principal executive offices of Registrant)
  
                                  (650) 653-2800
  
               (Registrant's telephone number, including area code)
  
  ================================================================================
  Item 5.   Other Events
            ------------
  
       On December 3, 1999, Inktomi Corporation announced that its Board of
  Directors approved a two-for-one stock split of its common stock ("Common
  Stock"). Stockholders of record on December 14, 1999 will be issued a
  certificate representing one additional share of Common Stock for each share of
  Common Stock held on December 14, 1999. The payment date for this stock dividend
  will be on or about December 30, 1999.
  
  Item 7.   Financial Statements and Exhibits
            ---------------------------------
  
            (c)  Exhibits
  
                    99.1   Press Release dated December 3, 1999 regarding the
            stock split
  
                                        -2-
  SIGNATURES
  
       Pursuant to the requirements of the Securities Exchange Act of 1934, as
  amended, the registrant has duly caused this report to be signed on its behalf
  by the undersigned hereunto duly authorized.
  
                                      INKTOMI CORPORATION
  
  Dated:  December 3, 1999            By:   /S/ DAVID C. PETERSCHMIDT
                                         ---------------------------------------
                                            David C. Peterschmidt, President and
                                            Chief Executive Officer