<SEC-DOCUMENT>0001127602-22-024595.txt : 20221101
<SEC-HEADER>0001127602-22-024595.hdr.sgml : 20221101
<ACCEPTANCE-DATETIME>20221101162833
ACCESSION NUMBER:		0001127602-22-024595
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20221028
FILED AS OF DATE:		20221101
DATE AS OF CHANGE:		20221101

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Zachary Jennifer
		CENTRAL INDEX KEY:			0001737231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-06571
		FILM NUMBER:		221350616

	MAIL ADDRESS:	
		STREET 1:		2000 GALLOPING HILL ROAD
		CITY:			KENILWORTH
		STATE:			NJ
		ZIP:			07033

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Merck & Co., Inc.
		CENTRAL INDEX KEY:			0000310158
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				221918501
		STATE OF INCORPORATION:			NJ
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2000 GALLOPING HILL ROAD
		CITY:			KENILWORTH
		STATE:			NJ
		ZIP:			07033
		BUSINESS PHONE:		908-740-4000

	MAIL ADDRESS:	
		STREET 1:		2000 GALLOPING HILL ROAD
		CITY:			KENILWORTH
		STATE:			NJ
		ZIP:			07033

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Merck & Co. Inc.
		DATE OF NAME CHANGE:	20091103

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SCHERING PLOUGH CORP
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
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    <periodOfReport>2022-10-28</periodOfReport>

    <issuer>
        <issuerCik>0000310158</issuerCik>
        <issuerName>Merck &amp; Co., Inc.</issuerName>
        <issuerTradingSymbol>MRK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001737231</rptOwnerCik>
            <rptOwnerName>Zachary Jennifer</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>MERCK &amp; CO., INC.</rptOwnerStreet1>
            <rptOwnerStreet2>126 EAST LINCOLN AVENUE</rptOwnerStreet2>
            <rptOwnerCity>RAHWAY</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07065</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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            <isOfficer>1</isOfficer>
            <officerTitle>EVP, General Counsel</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

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                </transactionShares>
                <transactionPricePerShare>
                    <value>99.85</value>
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                <directOrIndirectOwnership>
                    <value>D</value>
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        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>77.62</value>
                <footnoteId id="F4"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2022-10-28</value>
            </transactionDate>
            <transactionCoding>
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            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
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                    <value>68367</value>
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                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2020-05-03</value>
                <footnoteId id="F5"/>
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            <expirationDate>
                <value>2029-05-02</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>68367</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
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            </transactionDate>
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                <transactionAcquiredDisposedCode>
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                </transactionAcquiredDisposedCode>
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            <exerciseDate>
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            <expirationDate>
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                </transactionAcquiredDisposedCode>
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                <value>2022-05-04</value>
                <footnoteId id="F7"/>
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                <value>2031-05-03</value>
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    <footnotes>
        <footnote id="F1">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $98.5500 to $99.4900, inclusive. The reporting person undertakes to provide to Merck &amp; Co., Inc., any security holder of Merck &amp; Co., Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above in this footnote.</footnote>
        <footnote id="F2">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $99.6100 to $100.3600, inclusive. The reporting person undertakes to provide to Merck &amp; Co., Inc., any security holder of Merck &amp; Co., Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above in this footnote.</footnote>
        <footnote id="F3">Holdings include shares acquired in dividend reinvestment transactions.</footnote>
        <footnote id="F4">Exercise price and holdings reflect the adjustments that occurred as of June 2, 2021 in connection with the Organon &amp; Co. (&quot;Organon&quot;) spin-off as described in the registration statement on Form 10 filed with the SEC by Organon (the &quot;Form 10&quot;). As reported in the Form 10, all Merck stock option awards outstanding as of immediately prior to the distribution date were converted on the distribution date into adjusted Merck awards for Merck employees to preserve the same intrinsic value and general terms and conditions (including vesting) as were in place immediately prior to the adjustments.</footnote>
        <footnote id="F5">The option vests and becomes exercisable in three equal installments on 5/3/2020, 5/3/2021 and 5/3/2022.</footnote>
        <footnote id="F6">The option vests and becomes exercisable in three equal installments on 5/1/2021, 5/1/2022 and 5/1/2023.</footnote>
        <footnote id="F7">The option vests and becomes exercisable in three equal installments on 5/4/2022, 5/4/2023 and 5/4/2024.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Kelly E. W. Grez as Attorney-in-Fact for Jennifer Zachary</signatureName>
        <signatureDate>2022-11-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</SEC-DOCUMENT>
