3 institutions reported holding $5.3M of HARBOR ETF TRUST (MAPP) in SEC 13F filings for 2026-03-31. Largest institutional holders: Archford Capital Strategies, LLC ($3.9M), GTS SECURITIES LLC ($1.2M), Parkside Financial Bank & Trust ($142,665). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Archford Capital Strategies, LLC | $3.9M | 149,722 | Added |
| 2 | GTS SECURITIES LLC | $1.2M | 45,684 | New |
| 3 | Parkside Financial Bank & Trust | $142,665 | 5,529 | Added |
Source: SEC Form 13F filings · as of 2026-03-31