108 institutions reported holding $129.7M of BLACKROCK MUNIASSETS (MUA) in SEC 13F filings for 2026-06-30. Largest institutional holders: BANK OF AMERICA CORP /DE/ ($15.2M), Hennion & Walsh Asset Management, Inc. ($13.3M), GUGGENHEIM CAPITAL LLC ($11.7M), KEYBANK NATIONAL ASSOCIATION/OH ($11.7M), RIVERNORTH CAPITAL MANAGEMENT, LLC ($9.5M). Source: SEC Form 13F.
Source: SEC Form 13F filings · as of 2026-06-30