SEI INVESTMENTS CO - SEIC
All tracked SEC files for this issuer. Showing up to 200 latest records.
Need parsed ownership details (13D/13G with shares/percent)?
Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).
Files summary
Total files loaded: 51
Latest filed: Apr 01, 2026
| Form | Count |
|---|---|
| 4 | 32 |
| 144 | 8 |
| 8-K | 7 |
| SCHEDULE 13G/A | 3 |
| 4/A | 1 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| Apr 01, 2026 | 4/A | Mar 31, 2026 | 0001628280-26-022751 | View |
| Apr 01, 2026 | 4 | Mar 31, 2026 | 0001628280-26-022714 | View |
| Mar 27, 2026 | SCHEDULE 13G/A | — | 0000102909-26-002291 | View |
| Mar 19, 2026 | 4 | Mar 18, 2026 | 0001628280-26-019667 | View |
| Mar 12, 2026 | 4 | Mar 10, 2026 | 0001628280-26-017068 | View |
| Mar 10, 2026 | 144 | — | 0001968582-26-000268 | View |
| Mar 02, 2026 | 8-K | Mar 02, 2026 | 0000350894-26-000015 | View |
| Feb 26, 2026 | 4 | Feb 25, 2026 | 0001628280-26-012076 | View |
| Feb 25, 2026 | 144 | — | 0001921094-26-000201 | View |
| Feb 12, 2026 | SCHEDULE 13G/A | — | 0000312348-26-000013 | View |
| Feb 02, 2026 | 4 | Jan 29, 2026 | 0001628280-26-004505 | View |
| Jan 29, 2026 | 144 | — | 0001921094-26-000065 | View |
| Jan 28, 2026 | 8-K | Jan 28, 2026 | 0000350894-26-000003 | View |
| Jan 15, 2026 | 8-K | Jan 13, 2026 | 0000929638-26-000165 | View |
| Jan 02, 2026 | 4 | Jan 01, 2026 | 0001628280-26-000072 | View |
| Dec 30, 2025 | 4 | Dec 30, 2025 | 0001628280-25-059102 | View |
| Dec 29, 2025 | 4 | Dec 05, 2025 | 0001628280-25-058901 | View |
| Dec 29, 2025 | 4 | Dec 05, 2025 | 0001628280-25-058903 | View |
| Dec 29, 2025 | 4 | Dec 05, 2025 | 0001628280-25-058905 | View |
| Dec 29, 2025 | 4 | Dec 05, 2025 | 0001628280-25-058907 | View |
| Dec 29, 2025 | 4 | Dec 05, 2025 | 0001628280-25-058909 | View |
| Dec 23, 2025 | 4 | Dec 22, 2025 | 0001628280-25-058671 | View |
| Dec 22, 2025 | 144 | — | 0001921094-25-001578 | View |
| Dec 17, 2025 | 8-K | Dec 12, 2025 | 0000350894-25-000126 | View |
| Dec 16, 2025 | 4 | Dec 12, 2025 | 0001628280-25-057336 | View |
| Dec 16, 2025 | 4 | Dec 12, 2025 | 0001628280-25-057337 | View |
| Dec 16, 2025 | 4 | Dec 12, 2025 | 0001628280-25-057338 | View |
| Dec 16, 2025 | 4 | Dec 12, 2025 | 0001628280-25-057339 | View |
| Dec 16, 2025 | 4 | Dec 12, 2025 | 0001628280-25-057340 | View |
| Dec 16, 2025 | 4 | Dec 12, 2025 | 0001628280-25-057341 | View |
| Dec 16, 2025 | 4 | Dec 12, 2025 | 0001628280-25-057342 | View |
| Dec 16, 2025 | 4 | Dec 12, 2025 | 0001628280-25-057367 | View |
| Dec 16, 2025 | 4 | Dec 12, 2025 | 0001628280-25-057369 | View |
| Dec 16, 2025 | 4 | Dec 12, 2025 | 0001628280-25-057371 | View |
| Dec 16, 2025 | 4 | Dec 12, 2025 | 0001628280-25-057373 | View |
| Dec 16, 2025 | 4 | Dec 12, 2025 | 0001628280-25-057374 | View |
| Dec 16, 2025 | 4 | Dec 12, 2025 | 0001628280-25-057376 | View |
| Dec 08, 2025 | 4 | Dec 04, 2025 | 0000929638-25-004524 | View |
| Dec 05, 2025 | 4 | Dec 03, 2025 | 0000929638-25-004512 | View |
| Dec 04, 2025 | 144 | — | 0001921094-25-001456 | View |
| Dec 03, 2025 | 8-K | Dec 03, 2025 | 0000350894-25-000123 | View |
| Dec 03, 2025 | 144 | — | 0001921094-25-001454 | View |
| Nov 18, 2025 | 4 | Nov 17, 2025 | 0001628280-25-052814 | View |
| Nov 13, 2025 | SCHEDULE 13G/A | — | 0000312348-25-000034 | View |
| Nov 13, 2025 | 4 | Nov 12, 2025 | 0001628280-25-051956 | View |
| Nov 12, 2025 | 4 | Nov 11, 2025 | 0001628280-25-051435 | View |
| Nov 12, 2025 | 144 | — | 0001921094-25-001345 | View |
| Nov 12, 2025 | 144 | — | 0001921094-25-001358 | View |
| Oct 28, 2025 | 4 | Oct 24, 2025 | 0001628280-25-046715 | View |
| Oct 24, 2025 | 8-K | Oct 20, 2025 | 0000350894-25-000115 | View |
| Oct 22, 2025 | 8-K | Oct 22, 2025 | 0000350894-25-000113 | View |