6 institutions reported holding $1.6M of HARBOR ETF TRUST (SIFI) in SEC 13F filings for 2026-06-30. Largest institutional holders: JANE STREET GROUP, LLC ($1.1M), CITADEL ADVISORS LLC ($243,821), Steward Partners Investment Advisory, LLC ($200,408), INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC ($45,675), OSAIC HOLDINGS, INC. ($4,372). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | JANE STREET GROUP, LLC | $1.1M | 24,562 | New |
| 2 | CITADEL ADVISORS LLC | $243,821 | 5,577 | Added |
| 3 | Steward Partners Investment Advisory, LLC | $200,408 | 4,584 | Added |
| 4 | INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC | $45,675 | 1,050 | Hold |
| 5 | OSAIC HOLDINGS, INC. | $4,372 | 100 | Hold |
| 6 | MORGAN STANLEY | $53 | 1 | Hold |
Source: SEC Form 13F filings · as of 2026-06-30