SEC EDGAR Submission 0000350894-22-000023

<SEC-DOCUMENT>0000350894-22-000023-index.html : 20220427
<SEC-HEADER>0000350894-22-000023.hdr.sgml : 20220427
<ACCEPTANCE-DATETIME>20220427140202
ACCESSION NUMBER:		0000350894-22-000023
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		53
CONFORMED PERIOD OF REPORT:	20220601
FILED AS OF DATE:		20220427
DATE AS OF CHANGE:		20220427

FILER:

	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:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-10200
		FILM NUMBER:		22858639

	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>
<DOCUMENT>
<TYPE>DEF 14A
<SEQUENCE>1
<FILENAME>seic2022proxy.htm
<DESCRIPTION>DEFINITIVE PROXY STATEMENT
<TEXT>
Document 1 - file: seic2022proxy.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>seic2022proxy001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: seic2022proxy001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>seic2022proxy002.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: seic2022proxy002.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>seic2022proxy003.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: seic2022proxy003.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>seic2022proxy004.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: seic2022proxy004.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>seic2022proxy005.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: seic2022proxy005.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>seic2022proxy006.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: seic2022proxy006.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>seic2022proxy007.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: seic2022proxy007.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>seic2022proxy008.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: seic2022proxy008.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>seic2022proxy009.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: seic2022proxy009.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>seic2022proxy010.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 11 - file: seic2022proxy010.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>seic2022proxy011.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 12 - file: seic2022proxy011.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>seic2022proxy012.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 13 - file: seic2022proxy012.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>seic2022proxy013.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 14 - file: seic2022proxy013.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>15
<FILENAME>seic2022proxy014.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 15 - file: seic2022proxy014.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>16
<FILENAME>seic2022proxy015.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 16 - file: seic2022proxy015.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>17
<FILENAME>seic2022proxy016.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 17 - file: seic2022proxy016.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>18
<FILENAME>seic2022proxy017.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 18 - file: seic2022proxy017.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>19
<FILENAME>seic2022proxy018.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 19 - file: seic2022proxy018.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>20
<FILENAME>seic2022proxy019.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 20 - file: seic2022proxy019.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>21
<FILENAME>seic2022proxy020.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 21 - file: seic2022proxy020.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>22
<FILENAME>seic2022proxy021.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 22 - file: seic2022proxy021.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>23
<FILENAME>seic2022proxy022.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 23 - file: seic2022proxy022.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>24
<FILENAME>seic2022proxy023.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 24 - file: seic2022proxy023.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>25
<FILENAME>seic2022proxy024.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 25 - file: seic2022proxy024.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>26
<FILENAME>seic2022proxy025.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 26 - file: seic2022proxy025.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>27
<FILENAME>seic2022proxy026.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 27 - file: seic2022proxy026.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>28
<FILENAME>seic2022proxy027.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 28 - file: seic2022proxy027.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>29
<FILENAME>seic2022proxy028.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 29 - file: seic2022proxy028.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>30
<FILENAME>seic2022proxy029.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 30 - file: seic2022proxy029.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>31
<FILENAME>seic2022proxy030.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 31 - file: seic2022proxy030.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>32
<FILENAME>seic2022proxy031.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 32 - file: seic2022proxy031.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>33
<FILENAME>seic2022proxy032.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 33 - file: seic2022proxy032.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>34
<FILENAME>seic2022proxy033.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 34 - file: seic2022proxy033.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>35
<FILENAME>seic2022proxy034.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 35 - file: seic2022proxy034.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>36
<FILENAME>seic2022proxy035.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 36 - file: seic2022proxy035.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>37
<FILENAME>seic2022proxy036.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 37 - file: seic2022proxy036.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>38
<FILENAME>seic2022proxy037.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 38 - file: seic2022proxy037.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>39
<FILENAME>seic2022proxy038.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 39 - file: seic2022proxy038.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>40
<FILENAME>seic2022proxy039.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 40 - file: seic2022proxy039.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>41
<FILENAME>seic2022proxy040.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 41 - file: seic2022proxy040.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>42
<FILENAME>seic2022proxy041.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 42 - file: seic2022proxy041.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>43
<FILENAME>seic2022proxy042.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 43 - file: seic2022proxy042.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>44
<FILENAME>seic2022proxy043.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 44 - file: seic2022proxy043.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>45
<FILENAME>seic2022proxy044.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 45 - file: seic2022proxy044.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>46
<FILENAME>seic2022proxy045.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 46 - file: seic2022proxy045.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>47
<FILENAME>seic2022proxy046.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 47 - file: seic2022proxy046.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>48
<FILENAME>seic2022proxy047.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 48 - file: seic2022proxy047.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>49
<FILENAME>seic2022proxy048.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 49 - file: seic2022proxy048.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>50
<FILENAME>seic2022proxy049.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 50 - file: seic2022proxy049.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>51
<FILENAME>seic2022proxy050.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 51 - file: seic2022proxy050.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>52
<FILENAME>seic2022proxy051.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 52 - file: seic2022proxy051.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>53
<FILENAME>seic2022proxy052.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 53 - file: seic2022proxy052.jpg

</DOCUMENT>
</SEC-DOCUMENT>