X0201 3 2004-01-05 1 0001006835 SIEBEL SYSTEMS INC SEBL 0001275829 WESTON NEIL M C/O SIEBEL SYSTEMS UK, LTD. THE GLANTY, SIEBEL CENTRE EGHAM, SURREY X0 TW209DW UNITED KINGDOM 0 1 0 0 President, EMEA Sales Neil M. Weston 2004-01-14