0000350894-03-000016 4 1 20031119 20031120 MCGONIGLE DENNIS 0001101311 4 34 000-10200 031015141 ONE FREEDOM VALLEY DRIVE OAKS PA 19456 ONE FREEDOM VALLEY DRIVE OAKS PA 19456 SEI CORP 0000350894 6211 231707341 PA 1231 1 FREEDOM VALLEY DRIVE OAKS PA 19456-1100 6106761000 1 FREEDOM VALLEY DRIVE OAKS PA 19456-1100 4 1 edgar.xml PRIMARY DOCUMENT