<ARTICLE> 5 <LEGEND> (Replace this text with the legend) </LEGEND> <CIK> 0000816284 <NAME> CELGENE CORPORATION <MULTIPLIER> 1,000 <CURRENCY> US DOLLARS <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-START> MAR-01-2000 <PERIOD-END> JUN-30-2000 <EXCHANGE-RATE> 1 <CASH> 122,450,487 <SECURITIES> 169,498,195 <RECEIVABLES> 8,553,608 <ALLOWANCES> 296,601 <INVENTORY> 3,144,485 <CURRENT-ASSETS> 318,386,205 <PP&E> 12,263,668 <DEPRECIATION> (9,183,583) <TOTAL-ASSETS> 325,165,309 <CURRENT-LIABILITIES> 22,070,128 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 657,366 <OTHER-SE> 276,112,547 <TOTAL-LIABILITY-AND-EQUITY> 276,769,913 <SALES> 27,875,220 <TOTAL-REVENUES> 28,884,836 <CGS> 4,221,420 <TOTAL-COSTS> 38,515,121 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 1,437,086 <INCOME-PRETAX> (3,971,178) <INCOME-TAX> 0 <INCOME-CONTINUING> (3,971,178) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (3,971,178) <EPS-BASIC> (0.06) <EPS-DILUTED> (0.06)