X0101 42003-05-16 0000912603 SCHNITZER STEEL INDUSTRIES INC SCHN 0001052192 CASCADE INVESTMENT LLC 0010 0000902012 GATES WILLIAM H III 0010Common Stock2003-05-164S0450026.55D541900DCommon Stock2003-05-164S0430026.54D537600DCommon Stock2003-05-164S0100026.57D536600DCommon Stock2003-05-164S060026.62D536000DCommon Stock2003-05-164S060026.53D535400DCommon Stock2003-05-164S040026.66D535000DCommon Stock2003-05-164S030026.6D534700DCommon Stock2003-05-164S030027D534400DCommon Stock2003-05-164S010026.69D534300DCommon Stock2003-05-164S010026.68D534200DCommon Stock2003-05-164S010026.67D534100DCommon Stock2003-05-164S010026.58D534000DCommon Stock2003-05-164S010026.65D533900DMichael Larson as Manager of Cascade Investment, L.L.C. and on behalf of William H. Gates III. Authorized under power of attorney dated 3/14/2001 by William H. Gates III, filed on 3/19/2001 with Cascade's Schedule 13D, SEC File No. 005-52919.2003-05-20