| Date Filed | Type | Description |
| 08/11/2023 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 08/03/2023 |
5
| Peterson Michael (EVP and General Counsel) has filed a Form 5 on SEI INVESTMENTS CO |
| 07/31/2023 |
8-K
| Quarterly results |
| 07/28/2023 |
144
| Form 144 - Report of proposed sale of securities: |
| 07/28/2023 |
10-Q
| Quarterly Report for the period ended June 30, 2023 |
| 07/26/2023 |
8-K
| Quarterly results |
| 07/14/2023 |
8-K
| Quarterly results |
| 06/28/2023 |
144
| Form 144 - Report of proposed sale of securities: |
| 06/01/2023 |
8-K
| Submission of Matters to a Vote of Security Holders, Other Events, Financial Statements and Exhibits Interac... |
| 05/12/2023 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 04/24/2023 |
10-Q
| Quarterly Report for the period ended March 31, 2023 |
| 04/20/2023 |
8-K
| Quarterly results |
| 04/20/2023 |
ARS
| Form ARS - Annual Report to Security Holders: |
| 04/18/2023 |
8-K
| Quarterly results |
| 04/06/2023 |
8-K
| Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements... |
| 02/24/2023 |
10-K/A
| Annual Report for the period ended December 31, 2022 [amend] |
| 02/13/2023 |
SC 13G/A
| Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] |
| 02/10/2023 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 02/10/2023 |
SC 13G/A
| Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] |
| 02/09/2023 |
SC 13G/A
| VANGUARD GROUP INC reports a 9.1% stake in SEI Investments Co. |
| 02/03/2023 |
SC 13G/A
| Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] |
| 01/25/2023 |
8-K
| Quarterly results |
| 12/05/2022 |
8-K
| Quarterly results |
| 11/14/2022 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 10/28/2022 |
10-Q
| Quarterly Report for the period ended September 30, 2022 |
| 10/27/2022 |
8-K
| Quarterly results |
| 10/26/2022 |
8-K
| Quarterly results |
| 08/23/2022 |
8-K
| Regulation FD Disclosure, Financial Statements and Exhibits Interactive Data |
| 08/15/2022 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 07/25/2022 |
10-Q
| Quarterly Report for the period ended June 30, 2022 |
| 07/20/2022 |
8-K
| Quarterly results |
| 06/28/2022 |
11-K
| Form 11-K - Annual report of employee stock purchase, savings and similar plans: |
| 06/01/2022 |
8-K
| Quarterly results |
| 05/13/2022 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
|