SEI INVESTMENTS CO

Nasdaq:SEIC

Security Brokers, Dealers & Flotation Companies·OAKS, PA

, is a financial services company headquartered in Oaks, Pennsylvania, United States. SEI provides products and services to institutions, private banks, investment advisors, investment managers, and private clients.

CEO

Hicke Ryan

CFO

Denham Sean

Financials

20 shown

Type	Period	Ended	Filed
10-K	FY 2025	12/31/25	2/23/26	→
10-Q	Q3 2025	9/30/25	10/27/25	→
10-Q	Q2 2025	6/30/25	7/28/25	→
10-Q	Q1 2025	3/31/25	4/28/25	→
10-K	FY 2024	12/31/24	2/20/25	→
10-Q	Q3 2024	9/30/24	10/25/24	→
↓

Earnings Releases (8-K)

24 shown

Filed	Period
1/28/26	Q4 FY2026	→
10/22/25	Q3 FY2025	→
7/23/25	Q2 FY2025	→
4/23/25	Q1 FY2025	→
1/29/25	Q4 FY2025	→
10/23/24	Q3 FY2024	→
↓

News (8-K)

56 shown

Filed	Type	Description
3/2/26	Reg FD	Regulation FD Disclosure	→
1/15/26	Exec Change	Departure or Appointment of Directors or Certain Officers	→
12/17/25	Exec Change	Departure or Appointment of Directors or Certain Officers	→
12/3/25	Reg FD	Regulation FD Disclosure	→
10/24/25	Other	Other Events	→
9/18/25	Reg FD	Regulation FD Disclosure	→
↓

Prospectuses & Registrations

5 shown

Filed	Form	Description
4/14/25	ARS	ARS	→
7/26/24	S-8	S-8	→
4/16/24	ARS	ARS	→
4/20/23	ARS	ARS	→
7/24/14	S-8	FORM S-8 REGISTRATION STATEMENT	→

Proxies

15 shown

Filed	Form	Description
5/7/25	DEFA14A	ADDITIONAL DEFINITIVE PROXY SOLICITING MATERIALS	→
4/14/25	DEF 14A	DEFINITIVE PROXY STATEMENT	→
4/15/24	DEF 14A	DEFINITIVE PROXY STATEMENT	→
4/20/23	DEF 14A	DEF 14A	→
4/27/22	DEF 14A	DEFINITIVE PROXY STATEMENT	→
4/27/21	DEF 14A	DEFINITIVE PROXY STATEMENT	→
↓

Filing History(1001 filings)

TypeDateAccessionPeriodSize

Mar 19, 2026

0001628280-26-019667FORM 4

Mar 18, 2026

11.8 KB

Mar 12, 2026

0001628280-26-017068FORM 4

Mar 10, 2026

17.5 KB

144

Mar 10, 2026

0001968582-26-000268

—

4.3 KB

8-K

Mar 2, 2026

0000350894-26-0000158-K

Mar 2, 2026

1.6 MB

Feb 26, 2026

0001628280-26-012076FORM 4

Feb 25, 2026

17.7 KB

144

Feb 25, 2026

0001921094-26-000201

—

4.2 KB

10-K

Feb 23, 2026

0000350894-26-000013FORM 10-K

Dec 31, 2025

20.5 MB

13F-HR

Feb 13, 2026

0000350894-26-000005

Dec 31, 2025

2.7 MB

SCHEDULE 13G/A

Feb 12, 2026

0000312348-26-000013

—

6.4 KB

Feb 2, 2026

0001628280-26-004505FORM 4

Jan 29, 2026

31.4 KB

144

Jan 29, 2026

0001921094-26-000065

—

4.3 KB

8-K

Jan 28, 2026

0000350894-26-000003FORM 8-K

Jan 28, 2026

2.1 MB

8-K

Jan 15, 2026

0000929638-26-000165

Jan 13, 2026

296.5 KB

Jan 2, 2026

0001628280-26-000072FORM 4

Jan 1, 2026

10.5 KB

Dec 30, 2025

0001628280-25-059102FORM 4

Dec 30, 2025

10.2 KB

Dec 29, 2025

0001628280-25-058909FORM 4

Dec 5, 2025

10.7 KB

Dec 29, 2025

0001628280-25-058907FORM 4

Dec 5, 2025

11.5 KB

Dec 29, 2025

0001628280-25-058905FORM 4

Dec 5, 2025

10.8 KB

Dec 29, 2025

0001628280-25-058903FORM 4

Dec 5, 2025

10.8 KB

Dec 29, 2025

0001628280-25-058901FORM 4

Dec 5, 2025

11.3 KB

Dec 23, 2025

0001628280-25-058671FORM 4

Dec 22, 2025

10.5 KB

144

Dec 22, 2025

0001921094-25-001578

—

4.7 KB

8-K

Dec 17, 2025

0000350894-25-000126FORM 8-K

Dec 12, 2025

766.5 KB

Dec 16, 2025

0001628280-25-057376FORM 4

Dec 12, 2025

13.9 KB

Dec 16, 2025

0001628280-25-057374FORM 4

Dec 12, 2025

14.1 KB

25 filings shown

SEI INVESTMENTS CO

Financials

Earnings Releases (8-K)

News (8-K)

Prospectuses & Registrations

Proxies

Filing History(1001 filings)

Ownership

Other Filings

Filed	Form	Description
3/19/26	4	4	→
3/12/26	4	4	→
2/26/26	4	4	→
2/13/26	13F-HR	13F-HR	→
2/2/26	4	4	→
1/2/26	4	4	→
↓

Filed	Form	Description
3/10/26	144	144	→
2/25/26	144	144	→
2/12/26	SCHEDULE 13G/A	SCHEDULE 13G/A	→
1/29/26	144	144	→
12/22/25	144	144	→
12/4/25	144	144	→
↓