X0101 4/A 2003-05-09 2003-05-09 0 0000830260 OREGON STEEL MILLS INC OS 0001209264 NEUN CARL W 1 0 0 0 Common Stock 2003-02-19 4 P 0 1000 2.80 A 1000 D Common Stock 2.33 2003-05-01 4 A 0 4000 2.33 A 2003-04-26 2013-04-30 Common Stock 4000 8000 D 1333 on 4/26/03 1333 on 4/26/04 1334 on 4/26/05 /s/ Jeff S. Stewart 2003-05-09