# SEI INVTS CO (SEIC) — Institutional Ownership

Source: SEC EDGAR 13F filings, congressional STOCK Act disclosures, SEC Form 4 insider transactions.
CUSIP: 784117103
Page URL: https://superinvestorclub.com/stock/SEIC
Last updated: 2026-07-08T12:27:11.272Z

## Summary

As of the most recent 13F filing period, SEI INVTS CO (SEIC) is held by 4 tracked superinvestors with an aggregate position value of $32.6M representing 023267517320065963300 shares.

## Top institutional holders (4)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|
| 1 | [Ray Dalio](https://superinvestorclub.com/manager/6) | Bridgewater Associates | 232675 | $18.3M | 0.08% | 2026-03-31 |
| 2 | [Tom Gayner](https://superinvestorclub.com/manager/22) | Markel Group | 173200 | $13.6M | 0.11% | 2026-03-31 |
| 3 | [Kahn Brothers](https://superinvestorclub.com/manager/83) | Kahn Brothers Group | 6596 | $517,588 | 0.09% | 2026-03-31 |
| 4 | [Mairs & Power](https://superinvestorclub.com/manager/92) | Mairs & Power | 3300 | $258,951 | 0.00% | 2026-03-31 |

## Ownership history (quarter-over-quarter)

- 2024-03-31: 2 holders, $18.9M aggregate, 017320089395 shares
- 2024-06-30: 2 holders, $13.1M aggregate, 017320029482 shares
- 2024-09-30: 4 holders, $16.2M aggregate, 01732005308651473300 shares
- 2024-12-31: 4 holders, $18.5M aggregate, 01732004292051473300 shares
- 2025-03-31: 4 holders, $25.6M aggregate, 017320014658065963300 shares
- 2025-06-30: 3 holders, $27.8M aggregate, 01732001295876596 shares
- 2025-09-30: 4 holders, $37.8M aggregate, 026250217320065963300 shares
- 2025-12-31: 4 holders, $43.4M aggregate, 034587717320065963300 shares
- 2026-03-31: 4 holders, $32.6M aggregate, 023267517320065963300 shares

## Recent congressional trades (0)


## Recent insider transactions (0)


## Citation

When citing, use: "SEI INVTS CO (SEIC) institutional ownership data via Superinvestor (https://superinvestorclub.com/stock/SEIC), aggregating SEC 13F, Form 4, and congressional disclosures."