0000929638-23-003342.txt : 20231204 0000929638-23-003342.hdr.sgml : 20231204 20231204191340 ACCESSION NUMBER: 0000929638-23-003342 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20231201 FILED AS OF DATE: 20231204 DATE AS OF CHANGE: 20231204 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: WEST ALFRED P JR CENTRAL INDEX KEY: 0001059374 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-10200 FILM NUMBER: 231464783 MAIL ADDRESS: STREET 1: 1 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 form4.xml X0508 4 2023-12-01 0000350894 SEI INVESTMENTS CO SEIC 0001059374 WEST ALFRED P JR 1 FREEDOM VALLEY DRIVE OAKS PA 19456 true true true Executive Chairman false Common Stock 2023-12-01 4 M 0 22500 33.76 A 8042377 D Common Stock 2023-12-01 4 M 0 16281 33.76 A 8058658 D Common Stock 2023-12-01 4 S 0 29343 59.78 D 8029315 D Common Stock 2023-12-04 4 M 0 6219 33.76 A 8035534 D Common Stock 2023-12-04 4 S 0 4500 59.96 D 8031034 D Common Stock 2023-12-04 4 S 0 200 60.17 D 8030834 D Stock Option (Right to Purchase) 33.76 2023-12-01 4 M 0 22500 D 2015-12-31 2023-12-10 Common Stock 22500 0 D Stock Option (Right to Purchase) 33.76 2023-12-01 4 M 0 16281 D 2018-12-31 2023-12-10 Common Stock 16281 6219 D Stock Option (Right to Purchase) 33.76 2023-12-04 4 M 0 6219 D 2018-12-31 2023-12-10 Common Stock 6219 0 D Represents the weighted average of a range of sale prices from $59.59 to $59.93. The reporting person undertakes to provide to the Staff of the Securities and Exchange Commission, the Company or any stockholder of the Company, upon request, full information regarding the number of shares sold at each separate price. Represents the weighted average of a range of sale prices from $59.15 to $60.07. The reporting person undertakes to provide to the Staff of the Securities and Exchange Commission, the Company or any stockholder of the Company, upon request, full information regarding the number of shares sold at each separate price. Represents the weighted average of a range of sale prices from $60.16 to $60.18. The reporting person undertakes to provide to the Staff of the Securities and Exchange Commission, the Company or any stockholder of the Company, upon request, full information regarding the number of shares sold at each separate price. Received as employment compensation. /s/ Alfred P. West, Jr., by John Munch, attorney in fact 2023-12-04