Who Owns SEI INVTS CO (SEIC)? -- Institutional Holders (2026-06-30)
627 institutions reported holding $8.01B of SEI INVTS CO (SEIC) in SEC 13F filings for 2026-06-30. Largest institutional holders: VANGUARD GROUP INC ($1.02B), BlackRock, Inc. ($870.7M), LOOMIS SAYLES & CO L P ($744.0M), STATE STREET CORP ($372.9M), MORGAN STANLEY ($361.3M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | VANGUARD GROUP INC | $1.02B | 11.6M | Trimmed |
| 2 | BlackRock, Inc. | $870.7M | 9.9M | Trimmed |
| 3 | LOOMIS SAYLES & CO L P | $744.0M | 8.5M | Trimmed |
| 4 | STATE STREET CORP | $372.9M | 4.3M | Added |
| 5 | MORGAN STANLEY | $361.3M | 4.1M | Trimmed |
| 6 | Boston Partners | $271.4M | 3.1M | Added |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | $259.1M | 3.0M | Added |
| 8 | BANK OF AMERICA CORP /DE/ | $255.1M | 2.9M | Trimmed |
| 9 | FMR LLC | $220.2M | 2.5M | Added |
| 10 | LORD, ABBETT & CO. LLC | $202.5M | 2.3M | Added |
| 11 | DIMENSIONAL FUND ADVISORS LP | $172.1M | 2.0M | Added |
| 12 | FIRST TRUST ADVISORS LP | $131.7M | 1.5M | Trimmed |
| 13 | Beutel, Goodman & Co Ltd. | $131.1M | 1.5M | Trimmed |
| 14 | Invesco Ltd. | $97.4M | 1.1M | Trimmed |
| 15 | ROYCE & ASSOCIATES LP | $92.1M | 1.1M | Added |
| 16 | Caisse de depot et placement du Quebec | $87.9M | 1.0M | Trimmed |
| 17 | Boston Trust Walden Corp | $86.9M | 991,300 | Trimmed |
| 18 | NORTHERN TRUST CORP | $80.2M | 914,907 | Added |
| 19 | Bank of New York Mellon Corp | $78.4M | 894,194 | Trimmed |
| 20 | NORGES BANK | $77.8M | 887,116 | Added |
| 21 | BARCLAYS PLC | $72.4M | 825,215 | Added |
| 22 | AMERICAN CAPITAL MANAGEMENT INC | $65.4M | 745,323 | Trimmed |
| 23 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $61.0M | 695,446 | Trimmed |
| 24 | Sixth Street Partners Management Company, L.P. | $61.0M | 695,446 | New |
| 25 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $57.9M | 660,498 | Added |
Source: SEC Form 13F filings · as of 2026-06-30