<SEC-DOCUMENT>0000350894-23-000110-index.html : 20231222
<SEC-HEADER>0000350894-23-000110.hdr.sgml : 20231222
<ACCEPTANCE-DATETIME>20231222092828
ACCESSION NUMBER:		0000350894-23-000110
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		30
CONFORMED PERIOD OF REPORT:	20231219
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:		20231222
DATE AS OF CHANGE:		20231222

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:		231507475

	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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Document 1 - file: seic-20231219.htm

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<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>ex991withrowseparationag.htm
<DESCRIPTION>SEPARATION AGREEMENT RELATED TO WAYNE WITHROW DATED DECEMBER 19, 2023
<TEXT>
Document 2 - file: ex991withrowseparationag.htm

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<TYPE>EX-99.2
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Document 3 - file: ex992corpwithrowrlsfinal.htm

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Document 13 - file: ex991withrowseparationag007.jpg

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Document 20 - file: ex992corpwithrowrlsfinal001.jpg

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Document 21 - file: ex992corpwithrowrlsfinal002.jpg

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Document 25 - file: Financial_Report.xlsx

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Document 26 - file: Show.js

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Document 27 - file: report.css

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Document 28 - file: FilingSummary.html

Document 28 - RAW XML: FilingSummary.xml

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Document 30 - file: MetaLinks.json

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