# SEI INVTS CO COM

SEI INVTS CO COM is a security (CUSIP 784117103) tracked across SEC portfolio filings. 599 institutional managers reported $6.6B on Form 13F as of 2026-06-30; 39 registered fund positions totaling $550.0M via N-PORT as of 2026-05-31.

## Summary

- Issuer: SEI INVTS CO
- Class: COM
- CUSIP: 784117103
- Asset category: EC
- 13F holders: 599
- 13F value: $6.6B
- 13F period: 2026-06-30
- N-PORT fund positions: 39
- N-PORT value: $550.0M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 599 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $908.1M | 11,071,365 |
| BlackRock, Inc. | New York, NY | $793.4M | 10,110,337 |
| LOOMIS SAYLES & CO L P | BOSTON, MA | $677.1M | 8,628,879 |
| MORGAN STANLEY | NEW YORK, NY | $376.1M | 4,792,279 |
| STATE STREET CORP | BOSTON, MA | $328.4M | 4,185,178 |
| Boston Partners | BOSTON, MA | $271.4M | 3,093,791 |
| BANK OF AMERICA CORP /DE/ | CHARLOTTE, NC | $229.2M | 2,920,506 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $222.1M | 2,830,332 |
| FMR LLC | BOSTON, MA | $164.2M | 2,092,499 |
| DIMENSIONAL FUND ADVISORS LP | AUSTIN, TX | $147.0M | 1,873,198 |
| FIRST TRUST ADVISORS LP | Wheaton, IL | $143.0M | 1,822,669 |
| CAISSE DE DEPOT ET PLACEMENT DU QUEBEC | MONTREAL, A8 | $94.0M | 1,198,089 |
| Boston Trust Walden Corp | BOSTON, MA | $86.9M | 991,300 |
| Bank of New York Mellon Corp | NEW YORK, NY | $78.4M | 894,194 |
| [ROYCE & ASSOCIATES LP](https://search.stillhousedata.com/firm/107689) | New York, NY | $78.2M | 996,456 |

## Top fund holders (N-PORT)

_Showing 15 of 39 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| State Street SPDR S&P MidCap 400SM ETF Trust | SPDR S&P MIDCAP 400 ETF TRUST | $219.8M | 90.75% |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $81.3M | 9.98% |
| [LORD ABBETT AFFILIATED FUND INC](https://search.stillhousedata.com/fund/S000006806) | LORD ABBETT AFFILIATED FUND INC | $68.8M | 102.26% |
| [Lord Abbett Fundamental Equity Fund](https://search.stillhousedata.com/fund/S000007138) | LORD ABBETT SECURITIES TRUST | $38.5M | 174.14% |
| [VANGUARD STRATEGIC EQUITY FUND](https://search.stillhousedata.com/fund/S000002593) | VANGUARD HORIZON FUNDS | $28.0M | 27.65% |
| ROYCE SMALL-CAP TRUST, INC. | ROYCE SMALL-CAP TRUST, INC. | $20.8M | 93.22% |
| [ALPS | OShares U.S. Small-Cap Quality Dividend ETF](https://search.stillhousedata.com/fund/S000075798) | ALPS ETF TRUST | $17.7M | 202.03% |
| [LORD ABBETT MID CAP STOCK FUND INC](https://search.stillhousedata.com/fund/S000001450) | LORD ABBETT MID CAP STOCK FUND INC | $17.5M | 161.43% |
| [Boston Trust SMID Cap Fund](https://search.stillhousedata.com/fund/S000034664) | Boston Trust Walden Funds | $12.7M | 183.43% |
| [Natixis U.S. Equity Opportunities Fund](https://search.stillhousedata.com/fund/S000006658) | Natixis Funds Trust I | $6.0M | 51.44% |
| [Columbia Mid Cap Index Fund](https://search.stillhousedata.com/fund/S000010826) | COLUMBIA FUNDS SERIES TRUST | $5.8M | 22.95% |
| [Large Cap Index Master Portfolio](https://search.stillhousedata.com/fund/S000033023) | Master Investment Portfolio | $5.0M | 1.39% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $4.9M | 0.83% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $4.1M | 1.36% |
| [BNY Mellon Midcap Index Fund, Inc.](https://search.stillhousedata.com/fund/S000000078) | BNY MELLON MIDCAP INDEX FUND, INC. | $3.4M | 24.20% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/784117103.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.