SEC Filing Summary: SEI Investments Co (13F-HR)
Business Context and Reporting Period
This Form 13F-HR is a quarterly holdings report filed by SEI Investments Co for the period ended June 30, 2026. The filing was signed on August 14, 2026, by Michael N. Peterson, Executive Vice President. SEI acts as the parent holding company for several institutional investment managers, including SEI Investments Management Corporation, SEI Trust Company, and SEI Investments Canada Company. The report covers securities positions where SEI or its subsidiaries exercise investment discretion, as well as positions reported on behalf of subsidiaries where SEI disclaims direct discretion but holds an ownership interest.
Key Financial Metrics
As a Form 13F filing, this document reports portfolio holdings rather than the operating financial performance (revenue, profit, cash flow) of SEI Investments Co itself. The following metrics reflect the aggregate value of the reported securities portfolio:
- Total Value of Reported Holdings: $113,347,285,164
- Total Number of Holdings Entries: 6,177
- Number of Other Included Managers: 3 (SEI Investments Management Corp, SEI Trust Co, SEI Investments Canada Co)
- Revenue, Profit, Margins, Debt, Liquidity: Not applicable. This filing type does not contain operating financial statements.
Material Changes and Portfolio Composition
The filing text does not provide a comparative analysis of changes versus the prior period (e.g., Q1 2026) or specific buy/sell activity. The report is a "13F Combination Report," indicating that a portion of the holdings are reported in this document while other portions are reported by separate managers. The filing lists over 50 "Other Managers Reporting for this Manager," including major entities such as BlackRock Advisors LLC, Goldman Sachs Group Inc, and AllianceBernstein L.P., suggesting a complex structure involving sub-advisers and manager-of-managers relationships.
Guidance, Outlook, and Risks
Management Commentary: The filing includes a standard disclaimer that SEI does not exercise investment discretion over securities managed by its operating subsidiaries, though it reports them due to ownership interests. Voting authority for reported securities resides with the operating subsidiaries, though they are reported as "Sole Voting Authority" for regulatory purposes.
Risks and Contingencies: The filing contains a standard SEC disclaimer stating that the Commission has not reviewed the information for accuracy or completeness. No specific business risks, legal contingencies, or forward-looking guidance regarding SEI's own operations are included in this form.
Key Facts for Investor Verification
- Portfolio Scale: Verify the total reported asset value of approximately $113.3 billion against the company's total assets under management (AUM) reported in its 10-Q or 10-K filings to understand the scope of this specific report.
- Reporting Structure: Confirm the distinction between holdings reported directly by SEI versus those reported by the 3 included subsidiaries and the extensive list of other managers.
- Operating Performance: Note that this document does not contain revenue, earnings, or cash flow data; investors must refer to Form 10-Q or 10-K for SEI's operational financial health.
- Future Periods: The reporting period is June 30, 2026; ensure this aligns with the current date context for investment analysis.