0001950047-23-003564.txt : 20230830 0001950047-23-003564.hdr.sgml : 20230830 20230830170500 ACCESSION NUMBER: 0001950047-23-003564 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20230830 DATE AS OF CHANGE: 20230830 SUBJECT COMPANY: 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 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 000-10200 FILM NUMBER: 231226018 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 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: MCGONIGLE DENNIS CENTRAL INDEX KEY: 0001101311 FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: ONE FREEDOM VALLEY DRIVE CITY: OAKS STATE: PA ZIP: 19456 144 1 primary_doc.xml 144 0001101311 XXXXXXXX LIVE 0000350894 SEI INVESTMENTS COMPANY 000-10200 1 Freedom Valley Drive Oaks PA 19456-1100 (610) 676-1000 DENNIS J MCGONIGLE Officer Common Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 38th Floor New York NY 10004

30000 1866735.00 132358055 08/30/2023 NASDAQ Common 08/30/2023 Exercise of options under a registered plan Issuer N 30000 08/30/2023 Cash Y 08/30/2023 /s/ Dennis McGonigle