73 institutions reported holding $377.1M of HARBOR ETF TRUST (OSEA) in SEC 13F filings for 2026-06-30. Largest institutional holders: Diversified Enterprises, LLC ($92.2M), Arlington Financial Advisors, LLC ($52.5M), PNC Financial Services Group, Inc. ($25.3M), Venturi Wealth Management, LLC ($23.6M), PACES FERRY WEALTH ADVISORS, LLC ($18.9M). Source: SEC Form 13F.
Source: SEC Form 13F filings · as of 2026-06-30