# Filing Detail

Form 8-K - Current report:
SEC Accession No. 0000350894-25-000109
Filing Date
2025-09-18
Accepted
2025-09-18 07:33:39
Documents
97
Period of Report
2025-09-18
Items
Item 7.01: Regulation FD Disclosure
Item 9.01: Financial Statements and Exhibits

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | FORM 8-K | seic-20250918.htm iXBRL | 8-K | 37630
2 | EX-99.1 | exh991seicinvestorpresen.htm | EX-99.1 | 71586
6 | GRAPHIC | exh991seicinvestorpresen001.jpg | GRAPHIC | 90522
7 | GRAPHIC | exh991seicinvestorpresen002.jpg | GRAPHIC | 120195
8 | GRAPHIC | exh991seicinvestorpresen003.jpg | GRAPHIC | 80388
9 | GRAPHIC | exh991seicinvestorpresen004.jpg | GRAPHIC | 96577
10 | GRAPHIC | exh991seicinvestorpresen005.jpg | GRAPHIC | 63529
11 | GRAPHIC | exh991seicinvestorpresen006.jpg | GRAPHIC | 68453
12 | GRAPHIC | exh991seicinvestorpresen007.jpg | GRAPHIC | 169779
13 | GRAPHIC | exh991seicinvestorpresen008.jpg | GRAPHIC | 73167
14 | GRAPHIC | exh991seicinvestorpresen009.jpg | GRAPHIC | 92706
15 | GRAPHIC | exh991seicinvestorpresen010.jpg | GRAPHIC | 63494
16 | GRAPHIC | exh991seicinvestorpresen011.jpg | GRAPHIC | 61974
17 | GRAPHIC | exh991seicinvestorpresen012.jpg | GRAPHIC | 52698
18 | GRAPHIC | exh991seicinvestorpresen013.jpg | GRAPHIC | 60249
19 | GRAPHIC | exh991seicinvestorpresen014.jpg | GRAPHIC | 64517
20 | GRAPHIC | exh991seicinvestorpresen015.jpg | GRAPHIC | 56719
21 | GRAPHIC | exh991seicinvestorpresen016.jpg | GRAPHIC | 66519
22 | GRAPHIC | exh991seicinvestorpresen017.jpg | GRAPHIC | 65484
23 | GRAPHIC | exh991seicinvestorpresen018.jpg | GRAPHIC | 75573
24 | GRAPHIC | exh991seicinvestorpresen019.jpg | GRAPHIC | 100496
25 | GRAPHIC | exh991seicinvestorpresen020.jpg | GRAPHIC | 95866
26 | GRAPHIC | exh991seicinvestorpresen021.jpg | GRAPHIC | 91577
27 | GRAPHIC | exh991seicinvestorpresen022.jpg | GRAPHIC | 82451
28 | GRAPHIC | exh991seicinvestorpresen023.jpg | GRAPHIC | 82648
29 | GRAPHIC | exh991seicinvestorpresen024.jpg | GRAPHIC | 90665
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33 | GRAPHIC | exh991seicinvestorpresen028.jpg | GRAPHIC | 107613
34 | GRAPHIC | exh991seicinvestorpresen029.jpg | GRAPHIC | 61455
35 | GRAPHIC | exh991seicinvestorpresen030.jpg | GRAPHIC | 75482
36 | GRAPHIC | exh991seicinvestorpresen031.jpg | GRAPHIC | 100130
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38 | GRAPHIC | exh991seicinvestorpresen033.jpg | GRAPHIC | 112110
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40 | GRAPHIC | exh991seicinvestorpresen035.jpg | GRAPHIC | 60160
41 | GRAPHIC | exh991seicinvestorpresen036.jpg | GRAPHIC | 81251
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49 | GRAPHIC | exh991seicinvestorpresen044.jpg | GRAPHIC | 82847
50 | GRAPHIC | exh991seicinvestorpresen045.jpg | GRAPHIC | 109275
51 | GRAPHIC | exh991seicinvestorpresen046.jpg | GRAPHIC | 94553
52 | GRAPHIC | exh991seicinvestorpresen047.jpg | GRAPHIC | 70725
53 | GRAPHIC | exh991seicinvestorpresen048.jpg | GRAPHIC | 88839
54 | GRAPHIC | exh991seicinvestorpresen049.jpg | GRAPHIC | 97768
55 | GRAPHIC | exh991seicinvestorpresen050.jpg | GRAPHIC | 95064
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58 | GRAPHIC | exh991seicinvestorpresen053.jpg | GRAPHIC | 130363
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60 | GRAPHIC | exh991seicinvestorpresen055.jpg | GRAPHIC | 72200
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63 | GRAPHIC | exh991seicinvestorpresen058.jpg | GRAPHIC | 93296
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65 | GRAPHIC | exh991seicinvestorpresen060.jpg | GRAPHIC | 84469
66 | GRAPHIC | exh991seicinvestorpresen061.jpg | GRAPHIC | 112071
67 | GRAPHIC | exh991seicinvestorpresen062.jpg | GRAPHIC | 75787
68 | GRAPHIC | exh991seicinvestorpresen063.jpg | GRAPHIC | 73628
69 | GRAPHIC | exh991seicinvestorpresen064.jpg | GRAPHIC | 81824
70 | GRAPHIC | exh991seicinvestorpresen065.jpg | GRAPHIC | 101031
71 | GRAPHIC | exh991seicinvestorpresen066.jpg | GRAPHIC | 124684
72 | GRAPHIC | exh991seicinvestorpresen067.jpg | GRAPHIC | 108045
73 | GRAPHIC | exh991seicinvestorpresen068.jpg | GRAPHIC | 120786
74 | GRAPHIC | exh991seicinvestorpresen069.jpg | GRAPHIC | 74698
75 | GRAPHIC | exh991seicinvestorpresen070.jpg | GRAPHIC | 90988
76 | GRAPHIC | exh991seicinvestorpresen071.jpg | GRAPHIC | 115737
77 | GRAPHIC | exh991seicinvestorpresen072.jpg | GRAPHIC | 110293
78 | GRAPHIC | exh991seicinvestorpresen073.jpg | GRAPHIC | 96563
79 | GRAPHIC | exh991seicinvestorpresen074.jpg | GRAPHIC | 71284
80 | GRAPHIC | exh991seicinvestorpresen075.jpg | GRAPHIC | 65396
81 | GRAPHIC | exh991seicinvestorpresen076.jpg | GRAPHIC | 79925
82 | GRAPHIC | exh991seicinvestorpresen077.jpg | GRAPHIC | 101015
83 | GRAPHIC | exh991seicinvestorpresen078.jpg | GRAPHIC | 88155
84 | GRAPHIC | exh991seicinvestorpresen079.jpg | GRAPHIC | 91432
85 | GRAPHIC | exh991seicinvestorpresen080.jpg | GRAPHIC | 82239
86 | GRAPHIC | exh991seicinvestorpresen081.jpg | GRAPHIC | 108706
87 | GRAPHIC | exh991seicinvestorpresen082.jpg | GRAPHIC | 132163
88 | GRAPHIC | exh991seicinvestorpresen083.jpg | GRAPHIC | 111636
89 | GRAPHIC | seic-20250918_g1.jpg | GRAPHIC | 25422
| Complete submission text file | 0000350894-25-000109.txt |  | 10240295

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
3 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | seic-20250918.xsd | EX-101.SCH | 1773
4 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | seic-20250918_lab.xml | EX-101.LAB | 21885
5 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | seic-20250918_pre.xml | EX-101.PRE | 12502
99 | EXTRACTED XBRL INSTANCE DOCUMENT | seic-20250918_htm.xml | XML | 2712

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: 8-K | Act: 34 | File No.: 000-10200 | Film No.: 251321779
SIC: 6211 Security Brokers, Dealers & Flotation Companies
(CF Office: 09 Crypto Assets)