0000350894-21-000001.txt : 20210105 0000350894-21-000001.hdr.sgml : 20210105 20210105094831 ACCESSION NUMBER: 0000350894-21-000001 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20201228 FILED AS OF DATE: 20210105 DATE AS OF CHANGE: 20210105 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: MCGONIGLE DENNIS CENTRAL INDEX KEY: 0001101311 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-10200 FILM NUMBER: 21504166 MAIL ADDRESS: STREET 1: ONE FREEDOM VALLEY DRIVE CITY: OAKS STATE: PA ZIP: 19456 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: SEI INVESTMENTS CO CENTRAL INDEX KEY: 0000350894 STANDARD INDUSTRIAL CLASSIFICATION: SECURITY BROKERS, DEALERS & FLOTATION COMPANIES [6211] IRS NUMBER: 231707341 STATE OF INCORPORATION: PA FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 1 FREEDOM VALLEY DRIVE CITY: OAKS STATE: PA ZIP: 19456-1100 BUSINESS PHONE: 6106761000 MAIL ADDRESS: STREET 1: 1 FREEDOM VALLEY DRIVE CITY: OAKS STATE: PA ZIP: 19456-1100 FORMER COMPANY: FORMER CONFORMED NAME: SEI INVESTMENT CO DATE OF NAME CHANGE: 20040806 FORMER COMPANY: FORMER CONFORMED NAME: SEI CORP DATE OF NAME CHANGE: 19920703 4 1 primary_doc.xml PRIMARY DOCUMENT X0306 4 2020-12-28 0 0000350894 SEI INVESTMENTS CO SEIC 0001101311 MCGONIGLE DENNIS ONE FREEDOM VALLEY DRIVE OAKS PA 19456 0 1 0 0 Executive Vice President COMMON STOCK 2020-12-29 4 G 0 30000 0 D 532534 D RUTH MONTGOMERY (Attorney in Fact) 2021-01-05