SEI Investments Co
SEICNasdaqCIK 350894FinancialsFiscal year ends Dec 31
Reports and events: 234 filings
Newest first, by EDGAR acceptance time (Eastern). Each filing’s page lists its documents on sec.gov and, for 10-K and 10-Q reports, the extracted sections.
What the forms are: 10-K, 10-Q, 8-K, Form 4, DEF 14A, Schedule 13D, Schedule 13G, amendments, accession numbers.
| Filed | Form | What it is | Accession number |
|---|---|---|---|
| 2026-10-2614:19 ET | 10-Q | Quarterly reportPeriod 2026-09-30 | 0000350894-26-000058 |
| 2026-10-2116:06 ET | 8-K | 2.02 Results of operations; 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0000350894-26-000051 |
| 2026-07-2715:00 ET | 10-Q | Quarterly reportPeriod 2026-06-30 | 0000350894-26-000048 |
| 2026-07-2216:03 ET | 8-K | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000350894-26-000044 |
| 2026-05-2810:57 ET | 8-K | 5.07 Shareholder vote results; 8.01 Other events; 9.01 Financial statements and exhibits | 0000350894-26-000033 |
| 2026-04-2714:45 ET | 10-Q | Quarterly reportPeriod 2026-03-31 | 0000350894-26-000030 |
| 2026-04-2216:03 ET | 8-K | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000350894-26-000026 |
| 2026-04-1516:06 ET | DEF 14A | Proxy statementPeriod 2026-05-27 | 0000350894-26-000021 |
| 2026-03-0216:01 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000350894-26-000015 |
| 2026-02-2315:53 ET | 10-K | Annual reportPeriod 2025-12-31 | 0000350894-26-000013 |
| 2026-01-2816:03 ET | 8-K | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000350894-26-000003 |
| 2026-01-1516:20 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0000929638-26-000165 |
| 2025-12-1708:32 ET | 8-K | 5.02 Departure or appointment of officers or directors; 8.01 Other events; 9.01 Financial statements and exhibits | 0000350894-25-000126 |
| 2025-12-0316:41 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000350894-25-000123 |
| 2025-10-2714:34 ET | 10-Q | Quarterly reportPeriod 2025-09-30 | 0000350894-25-000120 |
| 2025-10-2416:29 ET | 8-K | 8.01 Other events | 0000350894-25-000115 |
| 2025-10-2216:02 ET | 8-K | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000350894-25-000113 |
| 2025-09-1807:33 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000350894-25-000109 |
| 2025-08-1916:09 ET | 8-K | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0000350894-25-000106 |
| 2025-07-2814:16 ET | 10-Q | Quarterly reportPeriod 2025-06-30 | 0000350894-25-000104 |
| 2025-07-2316:04 ET | 8-K | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000350894-25-000097 |
| 2025-07-2216:55 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0000350894-25-000095 |
| 2025-07-1808:05 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000350894-25-000092 |
| 2025-07-0109:08 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000350894-25-000088 |
| 2025-06-0510:01 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000350894-25-000078 |
| 2025-05-2816:07 ET | 8-K | 5.07 Shareholder vote results; 8.01 Other events; 9.01 Financial statements and exhibits | 0000350894-25-000076 |
| 2025-04-2813:57 ET | 10-Q | Quarterly reportPeriod 2025-03-31 | 0000350894-25-000071 |
| 2025-04-2316:06 ET | 8-K | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000350894-25-000065 |
| 2025-04-1417:01 ET | DEF 14A | Proxy statementPeriod 2025-05-28 | 0000350894-25-000060 |
| 2025-03-1813:41 ET | 8-K | 8.01 Other events; 9.01 Financial statements and exhibits | 0000350894-25-000040 |
| 2025-02-2710:16 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000350894-25-000032 |
| 2025-02-2512:00 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0000350894-25-000030 |
| 2025-02-2014:38 ET | 10-K | Annual reportPeriod 2024-12-31 | 0000350894-25-000028 |
| 2025-01-2916:07 ET | 8-K | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000350894-25-000016 |
| 2025-01-1716:18 ET | 8-K/A | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000350894-25-000012 |
| 2025-01-1412:37 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000350894-25-000007 |
| 2024-12-1216:08 ET | 8-K | 8.01 Other events; 9.01 Financial statements and exhibits | 0000350894-24-000153 |
| 2024-12-1109:06 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000350894-24-000150 |
| 2024-10-2512:15 ET | 10-Q | Quarterly reportPeriod 2024-09-30 | 0000350894-24-000131 |
| 2024-10-2316:08 ET | 8-K | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0000350894-24-000127 |
| 2024-08-3016:38 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000350894-24-000115 |
| 2024-07-2612:12 ET | 10-Q | Quarterly reportPeriod 2024-06-30 | 0000350894-24-000102 |
| 2024-07-2416:04 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000350894-24-000099 |
| 2024-05-3014:08 ET | 8-K | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 8.01 Other events; 9.01 Financial statements and exhibits | 0000350894-24-000090 |
| 2024-04-2912:43 ET | 10-Q | Quarterly reportPeriod 2024-03-31 | 0000350894-24-000084 |
| 2024-04-2416:04 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000350894-24-000078 |
| 2024-04-2308:29 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000350894-24-000076 |
| 2024-04-1516:01 ET | DEF 14A | Proxy statementPeriod 2024-05-29 | 0000350894-24-000066 |
| 2024-03-0116:45 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0000350894-24-000037 |
| 2024-02-2212:30 ET | 10-K/A | Annual report, amendedPeriod 2023-12-31 | 0000350894-24-000030 |
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 27, 2026, 17:32 ET. Listed shows no prices and gives no investment advice.