# Filing Detail

Form DEF 14A - Other definitive proxy statements:
SEC Accession No. 0000350894-25-000060
Filing Date
2025-04-14
Accepted
2025-04-14 17:01:50
Documents
46
Period of Report
2025-05-28

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | DEFINITIVE PROXY STATEMENT | seic-20250414.htm iXBRL | DEF 14A | 2758946
6 | GRAPHIC | seic-20250414_g1.gif | GRAPHIC | 15713
7 | GRAPHIC | seic-20250414_g10.gif | GRAPHIC | 8123
8 | GRAPHIC | seic-20250414_g11.gif | GRAPHIC | 7039
9 | GRAPHIC | seic-20250414_g12.gif | GRAPHIC | 9139
10 | GRAPHIC | seic-20250414_g13.gif | GRAPHIC | 7760
11 | GRAPHIC | seic-20250414_g14.gif | GRAPHIC | 7996
12 | GRAPHIC | seic-20250414_g15.gif | GRAPHIC | 4552
13 | GRAPHIC | seic-20250414_g16.jpg | GRAPHIC | 124184
14 | GRAPHIC | seic-20250414_g17.jpg | GRAPHIC | 93298
15 | GRAPHIC | seic-20250414_g18.jpg | GRAPHIC | 129609
16 | GRAPHIC | seic-20250414_g19.jpg | GRAPHIC | 143475
17 | GRAPHIC | seic-20250414_g2.jpg | GRAPHIC | 61083
18 | GRAPHIC | seic-20250414_g20.jpg | GRAPHIC | 133885
19 | GRAPHIC | seic-20250414_g21.jpg | GRAPHIC | 147073
20 | GRAPHIC | seic-20250414_g22.jpg | GRAPHIC | 144253
21 | GRAPHIC | seic-20250414_g23.gif | GRAPHIC | 19788
22 | GRAPHIC | seic-20250414_g24.gif | GRAPHIC | 20249
23 | GRAPHIC | seic-20250414_g25.gif | GRAPHIC | 54554
24 | GRAPHIC | seic-20250414_g26.gif | GRAPHIC | 48626
25 | GRAPHIC | seic-20250414_g27.gif | GRAPHIC | 51102
26 | GRAPHIC | seic-20250414_g28.jpg | GRAPHIC | 27992
27 | GRAPHIC | seic-20250414_g29.jpg | GRAPHIC | 437625
28 | GRAPHIC | seic-20250414_g3.jpg | GRAPHIC | 119880
29 | GRAPHIC | seic-20250414_g30.jpg | GRAPHIC | 180392
30 | GRAPHIC | seic-20250414_g4.jpg | GRAPHIC | 34776
31 | GRAPHIC | seic-20250414_g5.jpg | GRAPHIC | 320603
32 | GRAPHIC | seic-20250414_g6.jpg | GRAPHIC | 50475
33 | GRAPHIC | seic-20250414_g7.gif | GRAPHIC | 64672
34 | GRAPHIC | seic-20250414_g8.gif | GRAPHIC | 68035
35 | GRAPHIC | seic-20250414_g9.gif | GRAPHIC | 7184
| Complete submission text file | 0000350894-25-000060.txt |  | 10330580

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
2 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | seic-20250414.xsd | EX-101.SCH | 2426
3 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | seic-20250414_def.xml | EX-101.DEF | 2603
4 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | seic-20250414_lab.xml | EX-101.LAB | 2839
5 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | seic-20250414_pre.xml | EX-101.PRE | 1674
48 | EXTRACTED XBRL INSTANCE DOCUMENT | seic-20250414_htm.xml | XML | 280484

Mailing Address 1 FREEDOM VALLEY DRIVE OAKS PA 19456-1100
Business Address 1 FREEDOM VALLEY DRIVE OAKS PA 19456-1100 6106761000
SEI INVESTMENTS CO (Filer) CIK: 0000350894 (see all company filings)

EIN.: 231707341 | State of Incorp.: PA | Fiscal Year End: 1231
Type: DEF 14A | Act: 34 | File No.: 000-10200 | Film No.: 25836644
SIC: 6211 Security Brokers, Dealers & Flotation Companies
(CF Office: 09 Crypto Assets)