X0201 4/A 2003-10-06 2003-10-08 0 0000946486 DISCOVERY LABORATORIES INC /DE/ DSCO 0001135563 ROSENTHALE MARVIN E 6908 QUEENBERRY CIRCLE BOCA RATON FL 33496 1 0 0 0 Common Stock 2003-10-06 4 M 0 20000 1.41 A 38600 D Common Stock 2003-10-06 4 M 0 10000 0.81 A 48600 D Non-Qualified Stock Option (Right to Buy) 1.41 2003-10-06 4 M 0 20000 0 D 1999-05-21 2009-05-21 Common Stock 20000 0 D Non-Qualified Stock Option (Right to Buy) 0.81 2003-10-06 4 M 0 10000 0 D 2002-06-28 2012-06-28 Common Stock 10000 0 D The amount of securities beneficially disclosed in this entry include 3,000 shares of common stock held indirectly by a trust. /s/ David L. Lopez, CPA, Esq. 2003-10-15