<SEC-DOCUMENT>0000899243-18-010413.txt : 20180419
<SEC-HEADER>0000899243-18-010413.hdr.sgml : 20180419
<ACCEPTANCE-DATETIME>20180419164020
ACCESSION NUMBER:		0000899243-18-010413
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180419
FILED AS OF DATE:		20180419
DATE AS OF CHANGE:		20180419

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DOVER Corp
		CENTRAL INDEX KEY:			0000029905
		STANDARD INDUSTRIAL CLASSIFICATION:	CONSTRUCTION, MINING & MATERIALS HANDLING MACHINERY & EQUIP [3530]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38441
		FILM NUMBER:		18764199

	BUSINESS ADDRESS:	
		STREET 1:		3005 HIGHLAND PARKWAY
		STREET 2:		SUITE 200
		CITY:			DOWNERS GROVE
		STATE:			IL
		ZIP:			60515
		BUSINESS PHONE:		(630) 541-1540

	MAIL ADDRESS:	
		STREET 1:		3005 HIGHLAND PARKWAY
		STREET 2:		SUITE 200
		CITY:			DOWNERS GROVE
		STATE:			IL
		ZIP:			60515

	FORMER NAME:	
		FORMER CONFORMED NAME:	DOVER CORP
		DATE OF NAME CHANGE:	19920703

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Apergy Corp
		CENTRAL INDEX KEY:			0001723089
		STANDARD INDUSTRIAL CLASSIFICATION:	CONSTRUCTION, MINING & MATERIALS HANDLING MACHINERY & EQUIP [3530]
		IRS NUMBER:				823066826
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2445 TECHNOLOGY FOREST RD
		STREET 2:		SUITE 900
		CITY:			THE WOODLANDS
		STATE:			TX
		ZIP:			77381
		BUSINESS PHONE:		(630)541-1540

	MAIL ADDRESS:	
		STREET 1:		C/O DOVER CORPORATION
		STREET 2:		3005 HIGHLAND PARKWAY
		CITY:			DOWNERS GROVE
		STATE:			IL
		ZIP:			60515

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Wellsite Corp
		DATE OF NAME CHANGE:	20171116
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>doc3.xml
<DESCRIPTION>FORM 3 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2018-04-19</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001723089</issuerCik>
        <issuerName>Apergy Corp</issuerName>
        <issuerTradingSymbol>APY</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000029905</rptOwnerCik>
            <rptOwnerName>DOVER Corp</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>3005 HIGHLAND PARKWAY</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>DOWNERS GROVE</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60515</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>100</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes></footnotes>

    <remarks>This Form 3 is being filed in connection with the Securities and Exchange Commission's declaration of effectiveness of the Registration Statement on Form 10 of Apergy Corporation (&quot;APY&quot;), which describes the separation of APY from Dover Corporation.</remarks>

    <ownerSignature>
        <signatureName>/s/ Ivonne M. Cabrera Senior Vice President, General Counsel &amp; Secretary</signatureName>
        <signatureDate>2018-04-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
