<SEC-DOCUMENT>0001140361-15-007831.txt : 20150219
<SEC-HEADER>0001140361-15-007831.hdr.sgml : 20150219
<ACCEPTANCE-DATETIME>20150218172014
ACCESSION NUMBER:		0001140361-15-007831
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20150213
FILED AS OF DATE:		20150218
DATE AS OF CHANGE:		20150218

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GENERAC HOLDINGS INC.
		CENTRAL INDEX KEY:			0001474735
		STANDARD INDUSTRIAL CLASSIFICATION:	MOTORS & GENERATORS [3621]
		IRS NUMBER:				205654756
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		S45 W29290 HIGHWAY 59
		CITY:			WAUKESHA
		STATE:			WI
		ZIP:			53187
		BUSINESS PHONE:		888 436-3722

	MAIL ADDRESS:	
		STREET 1:		S45 W29290 HIGHWAY 59
		CITY:			WAUKESHA
		STATE:			WI
		ZIP:			53187

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MINICK RUSSELL S
		CENTRAL INDEX KEY:			0001302363

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34627
		FILM NUMBER:		15629018

	MAIL ADDRESS:	
		STREET 1:		414 EAST THIRD STREET
		CITY:			MUSCATINE
		STATE:			IA
		ZIP:			52761
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
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    <periodOfReport>2015-02-13</periodOfReport>

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    <issuer>
        <issuerCik>0001474735</issuerCik>
        <issuerName>GENERAC HOLDINGS INC.</issuerName>
        <issuerTradingSymbol>GNRC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001302363</rptOwnerCik>
            <rptOwnerName>MINICK RUSSELL S</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O GENERAC HOLDINGS INC.</rptOwnerStreet1>
            <rptOwnerStreet2>P.O. BOX 8</rptOwnerStreet2>
            <rptOwnerCity>WAUKESHA</rptOwnerCity>
            <rptOwnerState>WI</rptOwnerState>
            <rptOwnerZipCode>53189</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Executive Vice President</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
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                <value>Common Stock, par value $0.01 per share</value>
            </securityTitle>
            <transactionDate>
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            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
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            <transactionAmounts>
                <transactionShares>
                    <value>2981</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
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                <transactionPricePerShare>
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                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
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    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
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            <transactionDate>
                <value>2015-02-13</value>
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            <deemedExecutionDate></deemedExecutionDate>
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                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
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                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
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            <expirationDate>
                <value>2025-02-13</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
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                <value>2015-02-13</value>
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            <expirationDate>
                <value>2021-08-22</value>
            </expirationDate>
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                </sharesOwnedFollowingTransaction>
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    <footnotes>
        <footnote id="F1">Subject to Mr. Minick's continued service through the vesting date, the Restricted Shares shall all vest in equal installments on each of the first three (3) anniversaries of the Date of Grant.</footnote>
        <footnote id="F2">Options shall vest in equal installments on each of the first four (4) anniversaries of the Date of Grant.</footnote>
        <footnote id="F3">The shares were sold in multiple transactions at prices ranging from $50.00 to $50.27, inclusive. The reporting person undertakes to provide the SEC, the issuer and any security holder full information regarding the number of shares and the prices at which the shares were sold.</footnote>
        <footnote id="F4">Reported price reflects adjustment made, pursuant to the terms of the Company's 2010 Equity Incentive Plan, to reflect both a special cash dividend of $6 per share paid on June 29, 2012 to stockholders of record as of June 20, 2012 and a $5 per share paid on June 21, 2013 to stockholders of record as of June 12,2013.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/York Ragen, Attorney-in-fact</signatureName>
        <signatureDate>2015-02-18</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
