SEIC - CIK 0000350894
SEI INVESTMENTS CO has filed 1,942 documents with the SEC between 1995 and 2026. The most frequent type is insider trade (1,197 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Filing | Type | Filed | Period covered |
|---|---|---|---|
| Insider trade | 4 | 2012-12-12 | 2012-12-11 |
| Insider trade | 4 | 2012-12-12 | 2012-12-11 |
| Insider trade | 4 | 2012-12-12 | 2012-12-11 |
| Insider trade | 4 | 2012-12-12 | 2012-12-11 |
| Insider trade | 4 | 2012-12-12 | 2012-12-11 |
| Insider trade | 4 | 2012-12-12 | 2012-12-11 |
| Insider trade | 4 | 2012-12-12 | 2012-12-11 |
| Insider trade | 4 | 2012-12-12 | 2012-12-06 |
| Insider trade | 4 | 2012-12-12 | 2012-12-03 |
| Major company event | 8-K | 2012-12-11 | 2012-12-11 |
| Insider trade | 4 | 2012-11-26 | 2012-11-21 |
| Insider trade | 4 | 2012-11-21 | 2012-11-19 |
| Insider trade | 4 | 2012-11-05 | 2012-11-01 |
| Insider trade | 4 | 2012-11-05 | 2012-11-01 |
| Insider trade | 4 | 2012-11-05 | 2012-11-01 |
| Quarterly report | 10-Q | 2012-10-26 | 2012-09-30 |
| SEC correspondence | UPLOAD | 2012-10-10 | - |
| Major company event | 8-K | 2012-10-02 | 2012-10-01 |
| Insider trade | 4 | 2012-09-27 | 2012-09-25 |
| Insider trade | 4 | 2012-09-26 | 2012-09-25 |
| Insider trade (amended) | 4/A | 2012-09-20 | 2012-09-14 |
| Insider trade | 4 | 2012-09-18 | 2012-09-14 |
| Company correspondence | CORRESP | 2012-09-17 | - |
| Insider trade | 4 | 2012-09-14 | 2012-09-12 |
| Insider trade | 4 | 2012-09-07 | 2012-09-05 |
| Major company event | 8-K | 2012-09-04 | 2012-09-04 |
| Company correspondence | CORRESP | 2012-08-28 | - |
| Insider trade | 4 | 2012-08-23 | 2012-08-21 |
| Insider trade | 4 | 2012-08-23 | 2012-08-21 |
| Insider trade | 4 | 2012-08-23 | 2012-08-21 |
| SEC correspondence | UPLOAD | 2012-08-21 | - |
| Insider trade | 4 | 2012-08-08 | 2012-08-07 |
| Insider trade | 4 | 2012-08-07 | 2012-08-03 |
| Quarterly report | 10-Q | 2012-08-02 | 2012-06-30 |
| Major company event | 8-K | 2012-07-18 | 2012-07-18 |
| Company correspondence | CORRESP | 2012-07-09 | - |
| Insider trade (amended) | 4/A | 2012-07-06 | 2012-06-29 |
| Insider trade | 4 | 2012-07-03 | 2012-06-29 |
| Employee plan annual report | 11-K | 2012-06-22 | 2011-12-31 |
| Major company event (amended) | 8-K/A | 2012-06-22 | 2012-02-02 |
| Company correspondence | CORRESP | 2012-06-19 | - |
| SEC correspondence | UPLOAD | 2012-06-11 | - |
| Insider trade | 4 | 2012-05-30 | 2012-05-25 |
| Major company event | 8-K | 2012-05-24 | 2012-05-23 |
| Insider trade | 4 | 2012-05-17 | 2012-05-15 |
| Insider trade | 4 | 2012-05-09 | 2012-05-07 |
| Quarterly report | 10-Q | 2012-05-03 | 2012-03-31 |
| Proxy statement | DEF 14A | 2012-04-13 | 2012-05-23 |
| Insider trade | 4 | 2012-03-29 | 2012-03-23 |
| Insider trade | 4 | 2012-03-23 | 2012-03-21 |