SEI Investments Co

SEICSEC EDGAR

8-K, Current report

September 18, 2025

Period end September 18, 2025

Important filing

Regulation FD disclosure, Financial statements and exhibits

Item 7.01

Regulation FD disclosure

Item 9.01

Financial statements and exhibits

Item 9.01. Financial Statements and Exhibits. Exhibit No. Description 99.1 2025 Investor Day presentation issued September 18, 2025

104 Cover Page Interactive Data File (embedded within the Inline XBRL document)

SEI Investments Co, 8-KSEC EDGAR file no. 000035089425000109