{"url_path":"/sec/seic/8-k/2026-07-22/item-9-01","section_key":"item-9-01","section_title":"Item 9.01 Financial Statements and Exhibits.","topic":"sec","document":{"doc_type":"8-K","doc_date":"2026-07-22","source_url":"https://www.sec.gov/Archives/edgar/data/350894/0000350894-26-000044-index.html","accession_number":"0000350894-26-000044","cik":"0000350894","ticker":"SEIC","issuer_name":"SEI INVESTMENTS CO","edgar_url":"https://www.sec.gov/Archives/edgar/data/350894/0000350894-26-000044-index.html","primary_entity_key":"0000350894","primary_entity_name":"SEI INVESTMENTS CO"},"word_count":106,"has_tables":true,"body_markdown":"Item 9.01.    Financial Statements and Exhibits.\n\nExhibit No.Description\n\n99.1\n[Press Release dated](seic-earningsreleaseex9910.htm)[July](seic-earningsreleaseex9910.htm)[22, 2026 of SEI Investments Company related to the Company's financial and operating results for the](seic-earningsreleaseex9910.htm)[second](seic-earningsreleaseex9910.htm)[quarter ended](seic-earningsreleaseex9910.htm)[June 30](seic-earningsreleaseex9910.htm)[, 2026](seic-earningsreleaseex9910.htm)\n\n99.2\n[Earnings Presentation of SEI Investments Company for the second quarter ended June 30, 202](q22026seicearningspresen.htm)[6](q22026seicearningspresen.htm)\n\n104  Cover Page Interactive Data File (embedded within the Inline XBRL document)\n\nSIGNATURES\n\nPursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.\n\nSEI INVESTMENTS COMPANY\n\nDate:July 22, 2026By:/s/ Sean J. Denham\n\nSean J. Denham\nChief Financial and Chief Operating Officer"}