<SEC-DOCUMENT>0001193125-22-253464.txt : 20220929
<SEC-HEADER>0001193125-22-253464.hdr.sgml : 20220929
<ACCEPTANCE-DATETIME>20220928184245
ACCESSION NUMBER:		0001193125-22-253464
CONFORMED SUBMISSION TYPE:	424B3
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20220929
DATE AS OF CHANGE:		20220928

FILER:

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

	FILING VALUES:
		FORM TYPE:		424B3
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-258015
		FILM NUMBER:		221277345

	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>d222494d424b3.htm
<DESCRIPTION>BLACKROCK MUNIASSETS FUND, INC.
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<TITLE>BLACKROCK MUNIASSETS FUND, INC.</TITLE>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Filed Pursuant to Rule 424(b)(3)<BR>Registration File No.: 333-258015 </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>BLACKROCK MUNIASSETS FUND, INC. </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Supplement dated September&nbsp;29, 2022 to the Prospectus, dated August&nbsp;26, 2021, </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>and the Prospectus Supplements dated December&nbsp;17, 2021 and July&nbsp;18, 2022 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">This supplement amends certain information in the Prospectus, dated August&nbsp;26, 2021, as supplemented on December&nbsp;17, 2021 and July&nbsp;18, 2022, of
BlackRock MuniAssets Fund, Inc. (the &#147;Fund&#148;). Unless otherwise indicated, all information included in the Prospectus that is not inconsistent with the information set forth in this supplement remains unchanged. Capitalized terms not
otherwise defined in this supplement have the same meanings as in the Prospectus. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>The following changes are made to the Fund&#146;s Prospectus:
</B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>The section of the Prospectus entitled &#147;Management of the Fund &#151; Portfolio Managers&#148; is deleted in its entirety and replaced with
the following: </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Portfolio Managers </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">The members
of the portfolio management team who are primarily responsible for <FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">the&nbsp;day-to-day&nbsp;management</FONT></FONT> of the Fund&#146;s portfolio are as follows: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><I>Theodore R. Jaeckel, Jr.</I>, CFA, Managing Director of BlackRock, Inc., is <FONT STYLE="white-space:nowrap">Co-Head</FONT> of the Municipal Funds team
within the Municipal Fixed Income business within BlackRock&#146;s Portfolio Management Group. He is also a member of BlackRock&#146;s Municipal Bond Operating Committee, which oversees all municipal bond portfolio management, research and trading
activities. Mr.&nbsp;Jaeckel&#146;s service with BlackRock, Inc. dates back to 1991, including his years with Merrill Lynch Investment Managers (&#147;MLIM&#148;). At MLIM, he was a portfolio manager for municipal bond alternative and high yield
strategies. Prior to joining MLIM, Mr.&nbsp;Jaeckel was a municipal bond trader with Chemical Bank. Mr.&nbsp;Jaeckel earned a BA degree in history from Hamilton College in 1981. On or about March&nbsp;1, 2023, Mr.&nbsp;Jaeckel will retire from
BlackRock, Inc., and will no longer serve as a portfolio manager of the Fund. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><I>Walter O&#146;Connor</I>, CFA, Managing Director of BlackRock, Inc., is <FONT
STYLE="white-space:nowrap">Co-Head</FONT> of the Municipal Funds team within the Municipal Fixed Income business within BlackRock&#146;s Portfolio Management Group. He is also a member of the Municipal Bond Operating Committee, which oversees all
municipal bond portfolio management, research and trading activities. Mr.&nbsp;O&#146;Connor&#146;s service with BlackRock, Inc. dates back to 1991, including his years with MLIM. At MLIM, he was a portfolio manager for municipal bond retail mutual
funds. Prior to joining MLIM, Mr.&nbsp;O&#146;Connor was with Prudential Securities, where he was involved in trading, underwriting, and arbitrage for municipal securities and financial futures. Mr.&nbsp;O&#146;Connor earned a BA degree in finance
and philosophy from the University of Notre Dame in 1984. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><I>Kevin Maloney</I>, CFA, Director of BlackRock, Inc., is a Portfolio Manager for the mutual
fund desk within the Municipal Fixed Income business within BlackRock&#146;s Portfolio Management Group. Mr.&nbsp;Maloney began his career at BlackRock in 2011 as an analyst on the Municipal Credit Research Team. Mr.&nbsp;Maloney earned a BS degree
in finance from Drexel University in 2011. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><I>Phillip Soccio</I>, CFA, Director, is a Portfolio Manager for the Municipal Fixed Income business in
BlackRock&#146;s Portfolio Management Group. Prior to assuming his current role in 2007, Mr.&nbsp;Soccio&nbsp;was a member of BlackRock&#146;s Cash Management Group, where he was responsible for managing
<FONT STYLE="white-space:nowrap">various&nbsp;tax-exempt&nbsp;money</FONT> market funds. From 1998 to 2000, he was a member of BlackRock&#146;s Account Management Group responsible for institutional client service and marketing support.
Mr.&nbsp;Soccio&nbsp;began his career at BlackRock in 1998. Mr.&nbsp;Soccio earned a BS degree in finance from Wilmington University. </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">The SAI provides additional information about other accounts managed by the portfolio management team and the
ownership of the Fund&#146;s securities by each portfolio manager. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Shareholders should retain this Supplement for future reference.
</B></P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">- 2 - </P>

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