BlackRock MuniAssets Fund, Inc. (MUA) reported an average annual total return for the one-year period ended July 31, 2026 of 9.83% at net asset value (NAV) and 3.70% at market price; the report attributes the difference to a wider discount to NAV. On July 31, 2026, the closing market price was $10.10 and NAV was $11.09 per share. The current annualized distribution was $0.666000 per common share; the report says the rate may change and a portion may be deemed a return of capital or net realized gain.
MUA’s objective is to provide high current income exempt from federal income taxes. Its policies call for at least 80% of assets in municipal bonds and at least 65% in medium-to-lower-rated or unrated bonds, except during temporary defensive periods. As of July 31, 2026, leverage was 33% of total managed assets, based on VRDP Shares and TOB Trusts; the measure excludes derivatives and other instruments that may give rise to economic leverage. Unrated investments were 50.2% of total investments, excluding short-term securities. The report says leverage can magnify changes in NAV, market price and dividend rates, and that leverage costs may reduce income to common shareholders. BlackRock Long-Term Municipal Advantage Trust’s reorganization into MUA became effective February 23, 2026.
For BLACKROCK MUNIASSETS FUND, INC. (MUA), Sit Investment Associates, Inc. and Sit Fixed Income Advisors II, LLC reported shared voting and dispositive power over 7,135,290 common shares, equal to 10.6% of the class. The advisers state that client accounts own all reported securities; they may be deemed beneficial owners through their shared authority but disclaim beneficial ownership under Rule 13d-4. The issuer had 67,139,761 common shares outstanding as of October 1, 2026, according to its website. Paul Rasmussen, Vice President, signed for both advisers.
BLACKROCK MUNIASSETS FUND, INC. (MUA) has a new Form 3 on file in which Francis C. Mahoney is identified as a director of the fund. The filing is an initial statement of beneficial ownership but does not report any transactions or any specific holdings of MUA securities.
BLACKROCK MUNIASSETS FUND, INC. director Carl W. Kester reported a sale of 188 transferable subscription rights on August 7, 2026 at $0.0061 per right. These rights relate to a pro rata rights offering that allows holders to subscribe for up to 16,784,940 common shares at an estimated subscription price of $10.04 per share. Each right entitles the holder to purchase one new common share for every three rights held, with a minimum of one share for shareholders owning fewer than three shares on the July 28, 2026 record date. After this transaction, the reporting person held no rights of this type.
BlackRock MuniAssets Fund, Inc. filed an initial insider report for Charles Park, who is identified as the fund’s Chief Compliance Officer. The filing reports no securities transactions or holdings. Remarks note he served as Chief Compliance Officer from June 6, 2014 to June 30, 2023 and was reappointed effective August 1, 2026.
BlackRock MuniAssets Fund, Inc. filed Post-Effective Amendment No. 2 to its Form N-2 registration statement for its common shares and related rights. The amendment, filed under Rule 462(d), is limited to adding and organizing exhibits, incorporates the existing registration statement by reference, and becomes effective immediately upon filing.
The fund incorporates by reference its 2025 annual report and 2026 semi-annual report financial statements. Estimated offering-related expenses total $142,082, including a $24,332 registration fee, $110,000 in legal fees, $4,600 in accounting fees, a $2,500 NYSE listing fee, and a $650 FINRA fee. As of July 1, 2026, there were 169 record holders of common stock and 1 record holder of Series W-7 Variable Rate Demand Preferred Shares. The filing also restates charter and bylaw provisions on director and officer indemnification and notes joint E&O/D&O insurance maintained with other BlackRock fixed-income funds.
BlackRock MuniAssets Fund, Inc. is conducting a transferable rights offering to existing common shareholders, registering up to 16,784,940 new common shares. One right will be issued for each common share held as of the July 28, 2026 record date, and three rights are needed to buy one new share, with a special one-share minimum for holders of fewer than three shares. The rights trade on the NYSE under “MUA RT” and may be exercised until 5:00 p.m. ET on August 20, 2026, with an over‑subscription privilege for fully participating record holders, subject to pro rata allotment and possible elimination by the board.
The subscription price will be the lower of 95% of the 5‑day average market price around expiration or 90% of NAV on the expiration date; the estimated price is $10.04 per share, implying gross proceeds of about $168.5 million if fully subscribed. All offering expenses, estimated at $324,847, will be paid by the adviser, so the fund receives full subscription proceeds. Non‑participating shareholders will experience ownership and potential NAV dilution, especially if shares are issued below NAV, though rights are transferable and can be sold for value. The fund expects added assets to reduce leverage (from about 32.33% to 26.99% of managed assets) and be invested over roughly three months in its core strategy of tax‑exempt municipal bonds.
BlackRock MuniAssets Fund, Inc. is registering up to 17,000,000 common shares and related subscription rights for potential future offerings under a shelf prospectus. Proceeds from any offerings will be invested in line with its objective of providing high current income exempt from U.S. federal income taxes.
The diversified closed-end fund invests primarily in medium- to lower-grade or unrated municipal obligations and employs leverage through 2,510 Series W-7 Variable Rate Demand Preferred Shares and TOB Trust Certificates. As of January 31, 2026, net assets attributable to common shareholders were $434.242 million. As of July 7, 2026, 50,354,821 common shares were outstanding and listed on the NYSE under the symbol MUA.
Estimated total annual operating expenses are 2.48% of net assets attributable to common shares, including a 0.80% management fee and 1.26% interest expense. On July 7, 2026, NAV was $11.44 per share and the NYSE market price was $10.92, an 8.34% discount. The prospectus highlights risks from leverage and the tendency of closed-end fund shares to trade at discounts to NAV.
BlackRock MuniAssets Fund, Inc. proposes a shelf registration to offer, from time to time after effectiveness, up to 17,000,000 common shares.
The Fund is a diversified, closed-end management investment company with an objective of high current income exempt from U.S. federal income tax by investing primarily in medium- to lower-grade or unrated municipal obligations. The Prospectus describes fees (including a 1.00 sales load), estimated annual operating expenses of 2.48, use of proceeds, leverage (including VRDP preferred shares and TOB Trust Certificates), investment policies and risks, and that offerings will be detailed in subsequent Prospectus Supplements.