0001036050-98-001590 S-8 9 19980918 19980918 NONE SEI CORP 0000350894 6211 231707341 PA 1231 S-8 33 333-63709 98711639 1 FREEDOM VALLEY DRIVE OAKS PA 19456-1100 6106761000 1 FREEDOM VALLEY DRIVE OAKS PA 19456-1100 S-8 1 000103605098001590-001-seq1-s-8.txt FORM S-8 EX-5 2 000103605098001590-002-seq2-ex-5.txt OPINION OF MORGAN, LEWIS & BOCKIUS EX-23.1 3 000103605098001590-003-seq3-ex-23-1.txt CONSENT OF ARTHUR ANDERSEN LLP EX-99.A 4 000103605098001590-004-seq4-ex-99-a.txt SEI INVESTMENTS COMPANY STOCK OPTION PLAN EX-99.B 5 000103605098001590-005-seq5-ex-99-b.txt SEI INVESTMENTS COMPANY 1997 STOCK OPTION EX-99.C 6 000103605098001590-006-seq6-ex-99-c.txt SEI INVESTMENTS COMPANY OPTION SHARE DEFER EX-99.D 7 000103605098001590-007-seq7-ex-99-d.txt SEI INVESTMENTS CO. OPTION SHARE DEF FOR NON EX-99.E 8 000103605098001590-008-seq8-ex-99-e.txt SEI INVESTMENTS CO. EMPLOYEE STOCK PURCHASE EX-99.F 9 000103605098001590-009-seq9-ex-99-f.txt SEI INVESTMENTS CO. 1998 EQUITY COMP PLAN