6 institutions reported holding $431,087 of HARBOR ETF TRUST (SIFI) in SEC 13F filings for 2026-03-31. Largest institutional holders: CITADEL ADVISORS LLC ($215,564), Steward Partners Investment Advisory, LLC ($165,789), INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC ($45,348), OSAIC HOLDINGS, INC. ($4,332), MORGAN STANLEY ($54). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | CITADEL ADVISORS LLC | $215,564 | 4,976 | Added |
| 2 | Steward Partners Investment Advisory, LLC | $165,789 | 3,827 | Added |
| 3 | INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC | $45,348 | 1,050 | Hold |
| 4 | OSAIC HOLDINGS, INC. | $4,332 | 100 | Hold |
| 5 | MORGAN STANLEY | $54 | 1 | Hold |
| 6 | UBS Group AG | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31