Sei Investments Co SEC filings SEIC
Sei Investments Co has 1,001 filings in SEC EDGAR's recent list, going back to Mar 18, 2014. Its latest annual report, Form ARS, was filed on Apr 15, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Oct 26, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Oct 21, 2026 (results of operations, regulation fd disclosure, other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| ARS | Annual report to shareholders | Apr 15, 2026 | Dec 31, 2025 |
| 10-K | Annual report | Feb 23, 2026 | Dec 31, 2025 |
| ARS | Annual report to shareholders | Apr 14, 2025 | Dec 31, 2024 |
| 10-K | Annual report | Feb 20, 2025 | Dec 31, 2024 |
| ARS | Annual report to shareholders | Apr 16, 2024 | Dec 31, 2023 |
| 10-K/A | Amended annual report | Feb 22, 2024 | Dec 31, 2023 |
| 10-K | Annual report | Feb 20, 2024 | Dec 31, 2023 |
| ARS | Annual report to shareholders | Apr 20, 2023 | Dec 31, 2022 |
| 10-K/A | Amended annual report | Feb 24, 2023 | Dec 31, 2022 |
| 10-K | Annual report | Feb 21, 2023 | Dec 31, 2022 |
| 10-K | Annual report | Feb 22, 2022 | Dec 31, 2021 |
| 10-K | Annual report | Feb 22, 2021 | Dec 31, 2020 |
| 10-K | Annual report | Feb 24, 2020 | Dec 31, 2019 |
| 10-K | Annual report | Feb 25, 2019 | Dec 31, 2018 |
| 10-K | Annual report | Feb 22, 2018 | Dec 31, 2017 |
| 10-K | Annual report | Feb 22, 2017 | Dec 31, 2016 |
| 10-K | Annual report | Feb 22, 2016 | Dec 31, 2015 |
| 10-K | Annual report | Feb 23, 2015 | Dec 31, 2014 |
Showing 18 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Security Brokers, Dealers & Flotation Companies (SIC 6211)
- Listed as
- SEIC (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- PA
- Headquarters
- Oaks, PA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 350894
- Former names
- SEI CORP (until Aug 5, 2004)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.