228 institutions reported holding $334.3M of OPTIMUM COMMUNICATIONS INC (ATUS) in SEC 13F filings for 2026-06-30. Largest institutional holders: BlackRock, Inc. ($28.3M), VANGUARD GROUP INC ($27.6M), MILFAM LLC ($23.1M), Kite Lake Capital Management (UK) LLP ($20.4M), BW Gestao de Investimentos Ltda. ($18.0M). Source: SEC Form 13F.
Source: SEC Form 13F filings · as of 2026-06-30