<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MEDIMMUNE,
INC'S QUARTERLY REPORT ON FORM 10-Q FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1997
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FILING.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               SEP-30-1997
<CASH>                                           3,515
<SECURITIES>                                    27,273
<RECEIVABLES>                                   11,432
<ALLOWANCES>                                         0
<INVENTORY>                                     28,793
<CURRENT-ASSETS>                                72,645
<PP&E>                                          60,711
<DEPRECIATION>                                       0
<TOTAL-ASSETS>                                 136,080
<CURRENT-LIABILITIES>                           22,978
<BONDS>                                         76,292
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           241
<OTHER-SE>                                      35,815
<TOTAL-LIABILITY-AND-EQUITY>                   136,080
<SALES>                                         26,931
<TOTAL-REVENUES>                                27,208
<CGS>                                           13,903
<TOTAL-COSTS>                                   68,275
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               2,607
<INCOME-PRETAX>                               (40,188)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                           (40,188)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                  (40,188)
<EPS-PRIMARY>                                   (1.77)
<EPS-DILUTED>                                   (1.77)