<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM MEDIMMUNE,
INC'S QUARTERLY REPORT ON FORM 10-Q FOR THE THREE MONTHS ENDED MARCH 31, 1997
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FILING.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               MAR-31-1997
<CASH>                                           5,989
<SECURITIES>                                    86,979
<RECEIVABLES>                                    7,838
<ALLOWANCES>                                         0
<INVENTORY>                                      8,998
<CURRENT-ASSETS>                               111,658
<PP&E>                                          41,536
<DEPRECIATION>                                       0
<TOTAL-ASSETS>                                 155,573
<CURRENT-LIABILITIES>                           22,629
<BONDS>                                         73,245
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           219
<OTHER-SE>                                      58,766
<TOTAL-LIABILITY-AND-EQUITY>                   155,573
<SALES>                                         10,131
<TOTAL-REVENUES>                                10,138
<CGS>                                            5,215
<TOTAL-COSTS>                                   25,019
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 979
<INCOME-PRETAX>                               (14,322)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                           (14,322)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                  (14,322)
<EPS-PRIMARY>                                    (.65)
<EPS-DILUTED>                                    (.65)