137 institutions reported holding $475.0M of OPPENHEIMER HLDGS INC (OPY) in SEC 13F filings for 2026-06-30. Largest institutional holders: DIMENSIONAL FUND ADVISORS LP ($54.9M), JB CAPITAL PARTNERS LP ($53.2M), VANGUARD GROUP INC ($50.5M), AMERICAN CENTURY COMPANIES INC ($41.4M), BlackRock, Inc. ($21.5M). Source: SEC Form 13F.
Source: SEC Form 13F filings · as of 2026-06-30