<TABLE> <S> <C>
<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the Enzon,
Inc. and Subsidiaries Consolidated Condensed Balance Sheet as of September 30,
2000 and the Consolidated Condensed Statement of Operations for the three months
ended September 30, 2000 and is qualified in its entirety by reference to such
financial statements.
</LEGEND>
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> JUN-30-2001
<PERIOD-END> SEP-30-2000
<CASH> 27,255,389
<SECURITIES> 30,637,661
<RECEIVABLES> 5,669,253
<ALLOWANCES> 0
<INVENTORY> 955,099
<CURRENT-ASSETS> 68,917,172
<PP&E> 12,566,963
<DEPRECIATION> 10,756,341
<TOTAL-ASSETS> 135,791,914
<CURRENT-LIABILITIES> 10,756,340
<BONDS> 0
0
70
<COMMON> 414,421
<OTHER-SE> 129,431,355
<TOTAL-LIABILITY-AND-EQUITY> 123,924,277
<SALES> 4,947,268
<TOTAL-REVENUES> 5,173,614
<CGS> 1,001,188
<TOTAL-COSTS> 6,712,012
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> 582,706
<INCOME-TAX> 0
<INCOME-CONTINUING> 582,706
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 582,706
<EPS-BASIC> 0.01
<EPS-DILUTED> 0.01
</TABLE>