<SEC-DOCUMENT>0001193125-25-242071.txt : 20251017
<SEC-HEADER>0001193125-25-242071.hdr.sgml : 20251017
<ACCEPTANCE-DATETIME>20251017093911
ACCESSION NUMBER:		0001193125-25-242071
CONFORMED SUBMISSION TYPE:	424B3
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20251017
DATE AS OF CHANGE:		20251017

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BLACKROCK MUNIASSETS FUND, INC.
		CENTRAL INDEX KEY:			0000901243
		ORGANIZATION NAME:           	
		EIN:				223239638
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		424B3
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-288712
		FILM NUMBER:		251399099

	BUSINESS ADDRESS:	
		STREET 1:		100 BELLEVUE PARKWAY
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19809
		BUSINESS PHONE:		800-441-7762

	MAIL ADDRESS:	
		STREET 1:		100 BELLEVUE PARKWAY
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19809

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MUNIASSETS FUND INC
		DATE OF NAME CHANGE:	19930714

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MUNIINCOME FUND INC
		DATE OF NAME CHANGE:	19930517
</SEC-HEADER>
<DOCUMENT>
<TYPE>424B3
<SEQUENCE>1
<FILENAME>d70290d424b3.htm
<DESCRIPTION>BLACKROCK MUNIASSETS FUND, INC.
<TEXT>
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<TITLE>BlackRock MuniAssets Fund, Inc.</TITLE>
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<DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="right"><B>Filed Pursuant to Rule 424(b)(3) <BR> Registration File No.: 333-288712<BR> </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>BLACKROCK LONG-TERM MUNICIPAL ADVANTAGE TRUST </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>BLACKROCK MUNIASSETS FUND, INC. </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman"><B>Important Information Regarding the Joint Proxy Statement/Prospectus</B><B>, dated September 4, 2025</B><B> for </B><B>BlackRock Long-Term Municipal
Advantage Trust (&#8220;BTA&#8221;) and BlackRock MuniAssets Fund, Inc. (&#8220;MUA&#8221; or the &#8220;Acquiring Fund</B><B>&#8221;)</B> </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman"><B>T</B><B>he
following changes are made to the Joint Proxy Statement/Prospectus:</B> </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman">The Section of the Joint Proxy Statement/Prospectus entitled &#8220;Voting
Information and Requirements &#8211; Voting Requirement for Proposal 2: The Issuance of Acquiring Fund Common Shares&#8221; is deleted in its entirety and replaced with the following information: </P>
<P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman">&#8195;<B>Voting Requirement for Proposal 2: The Issuance of Acquiring Fund Common Shares</B> </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
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<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:12pt">
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00px solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>Proposal</B></P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">&#8195;&#8195;&#8195;&#8195;&#8195;&#8195;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00px solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>Required Approval of</B> <B></B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>Shareholders</B></P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:12pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; font-size:12pt; font-family:Times New Roman"><I>Proposal 2</I>: The common shareholders and VRDP Holders of the Acquiring Fund are being asked to vote as a single
class on a proposal to approve the issuance of additional Acquiring Fund common shares in connection with the Reorganization.</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; font-size:12pt; font-family:Times New Roman">Majority of votes entitled to be cast present at the Special Meeting or represented by proxy</P></TD></TR>
</TABLE></DIV> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman">All other references in the Joint Proxy Statement/Prospectus and the accompanying exhibits referencing the vote
requirement for shareholders to approve Proposal 2 are hereby revised and restated to reflect the vote requirement stated in the table above. </P>
</DIV>

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