<SEC-DOCUMENT>0001104659-25-046866.txt : 20250509
<SEC-HEADER>0001104659-25-046866.hdr.sgml : 20250509
<ACCEPTANCE-DATETIME>20250509180016
ACCESSION NUMBER:		0001104659-25-046866
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250505
FILED AS OF DATE:		20250509
DATE AS OF CHANGE:		20250509

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Giacobbe Ken
		CENTRAL INDEX KEY:			0001688603
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-03610
		FILM NUMBER:		25931994

	MAIL ADDRESS:	
		STREET 1:		201 ISABELLA STREET
		STREET 2:		SUITE 200
		CITY:			PITSBURGH
		STATE:			PA
		ZIP:			15212

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Howmet Aerospace Inc.
		CENTRAL INDEX KEY:			0000004281
		STANDARD INDUSTRIAL CLASSIFICATION:	ROLLING DRAWING & EXTRUDING OF NONFERROUS METALS [3350]
		ORGANIZATION NAME:           	04 Manufacturing
		EIN:				250317820
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		201 ISABELLA STREET
		STREET 2:		SUITE 200
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15212-5872
		BUSINESS PHONE:		(412) 553-1940

	MAIL ADDRESS:	
		STREET 1:		201 ISABELLA STREET
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15212-5872

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Arconic Inc.
		DATE OF NAME CHANGE:	20161101

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ALCOA INC.
		DATE OF NAME CHANGE:	20141003

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ALCOA INC
		DATE OF NAME CHANGE:	19990105
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>tm2514644-1_4aseq1.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2025-05-05</periodOfReport>

    <dateOfOriginalSubmission>2025-05-07</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000004281</issuerCik>
        <issuerName>Howmet Aerospace Inc.</issuerName>
        <issuerTradingSymbol>HWM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001688603</rptOwnerCik>
            <rptOwnerName>Giacobbe Ken</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>201 ISABELLA STREET SUITE 200</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>PITTSBURGH</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>15212-5872</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>EVP and CFO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-05-05</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>30473</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>154.34</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>182285</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>969</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Company 401(k) Plan</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents payment of tax liability by delivering or withholding shares incident to the vesting of a stock award issued in accordance with Rule 16b-3.</footnote>
        <footnote id="F2">This amendment is being filed to reflect a corrected calculation of the number of shares withheld for payment of the reporting person's tax liability incident to the vesting of previously issued restricted stock units, and to correct the number of shares held directly by the reporting person following this change.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Margaret Lam, Assistant Secretary (Attorney-in-Fact)</signatureName>
        <signatureDate>2025-05-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
