0001193125-03-063847 8-K 2 20031020 7 9 20031020 SEI CORP 0000350894 6211 231707341 PA 1231 8-K 34 000-10200 03947107 1 FREEDOM VALLEY DRIVE OAKS PA 19456-1100 6106761000 1 FREEDOM VALLEY DRIVE OAKS PA 19456-1100 8-K 1 d8k.htm FORM 8-K EX-99.1 3 dex991.htm PRESS RELEASE OF SEI INVESTMENTS COMPANY, DATED OCTOBER 16, 2003