-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0000796505-09-000023.txt : 20090909
<SEC-HEADER>0000796505-09-000023.hdr.sgml : 20090909
<ACCEPTANCE-DATETIME>20090909111001
ACCESSION NUMBER:		0000796505-09-000023
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20090909
FILED AS OF DATE:		20090909
DATE AS OF CHANGE:		20090909

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ROTH RONALD G
		CENTRAL INDEX KEY:			0001257956

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-16106
		FILM NUMBER:		091059656

	MAIL ADDRESS:	
		STREET 1:		5480 NATHAN LANE N
		STREET 2:		SUITE 120
		CITY:			PLYMOUTH
		STATE:			MN
		ZIP:			55442

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Clearfield, Inc.
		CENTRAL INDEX KEY:			0000796505
		STANDARD INDUSTRIAL CLASSIFICATION:	TELEPHONE & TELEGRAPH APPARATUS [3661]
		IRS NUMBER:				411347235
		STATE OF INCORPORATION:			MN
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		5480 NATHAN LANE NORTH
		STREET 2:		SUITE 120
		CITY:			PLYMOUTH
		STATE:			MN
		ZIP:			55442
		BUSINESS PHONE:		763-476-6866

	MAIL ADDRESS:	
		STREET 1:		5480 NATHAN LANE NORTH
		STREET 2:		SUITE 120
		CITY:			PLYMOUTH
		STATE:			MN
		ZIP:			55442

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	APA Enterprises, Inc.
		DATE OF NAME CHANGE:	20041116

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	APA OPTICS INC /MN/
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2009-09-09</periodOfReport>

    <dateOfOriginalSubmission>2009-09-01</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000796505</issuerCik>
        <issuerName>Clearfield, Inc.</issuerName>
        <issuerTradingSymbol>CLFD</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001257956</rptOwnerCik>
            <rptOwnerName>ROTH RONALD G</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>5480 NATHAN LANE N</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 120</rptOwnerStreet2>
            <rptOwnerCity>PLYMOUTH</rptOwnerCity>
            <rptOwnerState>MN</rptOwnerState>
            <rptOwnerZipCode>55442</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chairman of the Board</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>COMMON STOCK</value>
            </securityTitle>
            <transactionDate>
                <value>2009-08-31</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1700</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>3.15</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>749290</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>COMMON STOCK</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>156760</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Explination</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">(1) Consists of common shares benefically owned by the Reporting Persons wife.</footnote>
    </footnotes>

    <remarks>This amendment to Form 4 is being filed by the reporting person to correct the number of shares held and the form of ownership following the transaction reported above.  Immediately following the transaction on August 31, 2009, Mr. Roth owns 749,290 shares of Clearfield, Inc. common stock and his wife owns 156,760 shares, which are attributable to him as an indirect form of ownership.</remarks>

    <ownerSignature>
        <signatureName>Ronald G. Roth</signatureName>
        <signatureDate>2009-09-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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