<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)