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 |
|---|---|---|---|
| N-PX | Filing | Aug 27, 2026 | Jun 30, 2026 |
| 11-K | Employee savings plan report | Jun 23, 2026 | Dec 31, 2025 |
| N-PX | Filing | Aug 25, 2025 | Jun 30, 2025 |
| 11-K | Employee savings plan report | Jun 24, 2025 | Dec 31, 2024 |
| N-PX | Filing | Aug 21, 2024 | Jun 30, 2024 |
| 11-K | Employee savings plan report | Jun 18, 2024 | Dec 31, 2023 |
| 11-K | Employee savings plan report | Jun 22, 2023 | Dec 31, 2022 |
| 11-K | Employee savings plan report | Jun 28, 2022 | Dec 31, 2021 |
| 11-K | Employee savings plan report | Jun 28, 2021 | Dec 31, 2020 |
| 11-K | Employee savings plan report | Jun 19, 2020 | Dec 31, 2019 |
| 11-K | Employee savings plan report | Jun 21, 2019 | Dec 31, 2018 |
| 11-K | Employee savings plan report | Jun 22, 2018 | Dec 31, 2017 |
| 11-K | Employee savings plan report | Jun 28, 2017 | Dec 31, 2016 |
| 11-K | Employee savings plan report | Jun 24, 2016 | Dec 31, 2015 |
| UPLOAD | Letter from the SEC | Feb 5, 2016 | — |
| CORRESP | Letter to the SEC | Jan 14, 2016 | — |
| CORRESP | Letter to the SEC | Dec 9, 2015 | — |
| UPLOAD | Letter from the SEC | Dec 1, 2015 | — |
| 11-K | Employee savings plan report | Jun 29, 2015 | Dec 31, 2014 |
| 11-K | Employee savings plan report | Jun 20, 2014 | Dec 31, 2013 |
Showing 20 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)
Other Security Brokers, Dealers & Flotation Companies companies
- Morgan Stanley MS
- Goldman Sachs Group Inc GS
- BlackRock, Inc. BLK
- Schwab Charles Corp SCHW
- Interactive Brokers Group, Inc. IBKR
- Robinhood Markets, Inc. HOOD
- Raymond James Financial Inc RJF
- Nomura Holdings Inc NMR
All 34 Security Brokers, Dealers & Flotation Companies companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.