<SEC-DOCUMENT>0000350894-24-000009-index.html : 20240205
<SEC-HEADER>0000350894-24-000009.hdr.sgml : 20240205
<ACCEPTANCE-DATETIME>20240205091221
ACCESSION NUMBER:		0000350894-24-000009
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		43
CONFORMED PERIOD OF REPORT:	20240116
ITEM INFORMATION:		Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20240205
DATE AS OF CHANGE:		20240205

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SEI INVESTMENTS CO
		CENTRAL INDEX KEY:			0000350894
		STANDARD INDUSTRIAL CLASSIFICATION:	SECURITY BROKERS, DEALERS & FLOTATION COMPANIES [6211]
		ORGANIZATION NAME:           	02 Finance
		IRS NUMBER:				231707341
		STATE OF INCORPORATION:			PA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-10200
		FILM NUMBER:		24594212

	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
</SEC-HEADER>
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<TYPE>8-K
<SEQUENCE>1
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<DESCRIPTION>FORM 8-K
<TEXT>
Document 1 - file: seic-20240116.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.1 <SEQUENCE>2 <FILENAME>ex991sdenhamemploymentag.htm <DESCRIPTION>EMPLOYMENT AGREEMENT <TEXT> Document 2 - file: ex991sdenhamemploymentag.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.2 <SEQUENCE>3 <FILENAME>ex992sdenham-amendmentto.htm <DESCRIPTION>FIRST AMENDMENT TO EMPLOYEE AGREEMENT <TEXT> Document 3 - file: ex992sdenham-amendmentto.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.3 <SEQUENCE>4 <FILENAME>ex993corpcfoappointment2.htm <DESCRIPTION>PRESS RELEASE <TEXT> Document 4 - file: ex993corpcfoappointment2.htm
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</DOCUMENT> <DOCUMENT> <TYPE>EX-101.PRE <SEQUENCE>7 <FILENAME>seic-20240116_pre.xml <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT <TEXT> Document 7 - file: seic-20240116_pre.xml
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</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>33 <FILENAME>seic-20240116_g1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 33 - file: seic-20240116_g1.jpg
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</DOCUMENT> <DOCUMENT> <TYPE>EXCEL <SEQUENCE>36 <FILENAME>Financial_Report.xlsx <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 36 - file: Financial_Report.xlsx
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</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>38 <FILENAME>report.css <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 38 - file: report.css
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>40 <FILENAME>FilingSummary.xml <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 40 - file: FilingSummary.html
Document 40 - RAW XML: FilingSummary.xml
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