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                                  UNITED STATES
                       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


                FEBRUARY 9, 2000                                0-16132
------------------------------------------------        ----------------------
Date of Report (Date of earliest event reported)        Commission File Number


                               CELGENE CORPORATION
         --------------------------------------------------------------
             (Exact name of registrant as specified in its charter)


             DELAWARE                               22-2711928
----------------------------------     ----------------------------------------
  (State or other jurisdiction         (I.R.S. Employer Identification Number)
of incorporation or organization)


                               7 POWDER HORN DRIVE
                            WARREN, NEW JERSEY 07059
         --------------------------------------------------------------
               (Address of Principal Executive Offices) (Zip Code)


                                 (732) 271-1001
         --------------------------------------------------------------
              (Registrant's telephone number, including area code)


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--------------------------------------------------------------------------------

<PAGE>


ITEM 5.      OTHER EVENTS.

                  The Company is  publishing its audited  financial  results for
the year ended December 31, 1999.

                  The financial  statements  are filed as an exhibit  hereto and
are hereby incorporated by reference.

ITEM 7.      FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS.


         (a)   not applicable

         (b)   not applicable

         (c)   Exhibits

               99.1  Financial Statements



                                       2
<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.


Date: February 9, 2000                  CELGENE CORPORATION



                                        By:   /s/  John W. Jackson
                                           ------------------------
                                            Name:  John W. Jackson
                                            Title: Chairman of the Board and
                                                   Chief Executive Officer


                                       3
<PAGE>

EXHIBIT                       EXHIBIT INDEX                             PAGE
----------------    ---------------------------------------        -------------

  99.1              Financial Statements
[{"type": "8-K", "sequence": "1", "description": "FORM 8-K", "secsgml_size_bytes": 3409}]
{"company-data": {"conformed-name": "CELGENE CORP /DE/", "cik": "0000816284", "assigned-sic": "8731", "irs-number": "222711928", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-16132", "film-number": "530077"}, "business-address": {"street1": "7 POWDER HORN DR", "city": "WARREN", "state": "NJ", "zip": "07059", "phone": "9082711001"}, "mail-address": {"street1": "7 POWDER HORN DRIVE", "street2": "P O BOX 4914", "city": "WARREN", "state": "NJ", "zip": "07059"}}
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

                                  UNITED STATES
                       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

                FEBRUARY 9, 2000                                0-16132
------------------------------------------------        ----------------------
Date of Report (Date of earliest event reported)        Commission File Number

                               CELGENE CORPORATION
         --------------------------------------------------------------
             (Exact name of registrant as specified in its charter)

             DELAWARE                               22-2711928
----------------------------------     ----------------------------------------
  (State or other jurisdiction         (I.R.S. Employer Identification Number)
of incorporation or organization)

                               7 POWDER HORN DRIVE
                            WARREN, NEW JERSEY 07059
         --------------------------------------------------------------
               (Address of Principal Executive Offices) (Zip Code)

                                 (732) 271-1001
         --------------------------------------------------------------
              (Registrant's telephone number, including area code)

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
ITEM 5.      OTHER EVENTS.

                  The Company is  publishing its audited  financial  results for
the year ended December 31, 1999.

                  The financial  statements  are filed as an exhibit  hereto and
are hereby incorporated by reference.

ITEM 7.      FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS.

         (a)   not applicable

         (b)   not applicable

         (c)   Exhibits

               99.1  Financial Statements

                                       2
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: February 9, 2000                  CELGENE CORPORATION

                                        By:   /s/  John W. Jackson
                                           ------------------------
                                            Name:  John W. Jackson
                                            Title: Chairman of the Board and
                                                   Chief Executive Officer

                                       3
EXHIBIT                       EXHIBIT INDEX                             PAGE
----------------    ---------------------------------------        -------------

  99.1              Financial Statements