<SEC-DOCUMENT>0000950170-25-033738.txt : 20250305
<SEC-HEADER>0000950170-25-033738.hdr.sgml : 20250305
<ACCEPTANCE-DATETIME>20250305164045
ACCESSION NUMBER:		0000950170-25-033738
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250303
FILED AS OF DATE:		20250305
DATE AS OF CHANGE:		20250305

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MUELLER CHARLES E JR
		CENTRAL INDEX KEY:			0001195976
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12672
		FILM NUMBER:		25711877

	MAIL ADDRESS:	
		STREET 1:		C/O AVALONBAY COMMUNITIES, INC.
		STREET 2:		4040 WILSON BLVD., SUITE 1000
		CITY:			ARLINGTON
		STATE:			VA
		ZIP:			22027

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AVALONBAY COMMUNITIES INC
		CENTRAL INDEX KEY:			0000915912
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		ORGANIZATION NAME:           	05 Real Estate & Construction
		IRS NUMBER:				770404318
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		4040 WILSON BOULEVARD
		STREET 2:		STE 1000
		CITY:			ARLINGTON
		STATE:			VA
		ZIP:			22203
		BUSINESS PHONE:		7033296300

	MAIL ADDRESS:	
		STREET 1:		4040 WILSON BOULEVARD
		STREET 2:		STE 1000
		CITY:			ARLINGTON
		STATE:			VA
		ZIP:			22203

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AVALON BAY COMMUNITIES INC
		DATE OF NAME CHANGE:	19980618

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BAY APARTMENT COMMUNITIES INC
		DATE OF NAME CHANGE:	19931208
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>ownership.xml
<DESCRIPTION>4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-03-03</periodOfReport>

    <issuer>
        <issuerCik>0000915912</issuerCik>
        <issuerName>AVALONBAY COMMUNITIES INC</issuerName>
        <issuerTradingSymbol>AVB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001195976</rptOwnerCik>
            <rptOwnerName>MUELLER CHARLES E JR</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O AVALONBAY COMMUNITIES, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>4040 WILSON BOULEVARD STE 1000</rptOwnerStreet2>
            <rptOwnerCity>ARLINGTON</rptOwnerCity>
            <rptOwnerState>VA</rptOwnerState>
            <rptOwnerZipCode>22203</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>false</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $.01 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2025-03-03</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>144</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5389.9397</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Reflects grant of Deferred Stock Units (&quot;Units&quot;) under the issuer's Second Amended and Restated 2009 Equity Incentive Plan pursuant to an election previously made by the reporting person to receive Units in lieu of the quarterly cash director's fee otherwise due. The Units will convert into common stock on a one for one basis when the reporting person ceases to be a director of the issuer.</footnote>
        <footnote id="F2">The amount of securities owned following the reported transaction reflects direct ownership of all shares of common stock, including Units, which may be subject to vesting requirements.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>By Edward M. Schulman under Power of Attorney dated as of October 28, 2022</signatureName>
        <signatureDate>2025-03-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
