<SEC-DOCUMENT>0001140361-13-026907.txt : 20130701
<SEC-HEADER>0001140361-13-026907.hdr.sgml : 20130701
<ACCEPTANCE-DATETIME>20130701172211
ACCESSION NUMBER:		0001140361-13-026907
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20130701
FILED AS OF DATE:		20130701
DATE AS OF CHANGE:		20130701

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:			WALSH TIMOTHY J.
		CENTRAL INDEX KEY:			0001108220

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34627
		FILM NUMBER:		13945643

	MAIL ADDRESS:	
		STREET 1:		JP MORGAN PARTNERS, LLC
		STREET 2:		1221 AVENUE OF THE AMERICAS-40TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10020

	FORMER NAME:	
		FORMER CONFORMED NAME:	WALSH TIMOTHY
		DATE OF NAME CHANGE:	20000301
</SEC-HEADER>
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<TYPE>4
<SEQUENCE>1
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<DESCRIPTION>FORM 4
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    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2013-07-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001474735</issuerCik>
        <issuerName>GENERAC HOLDINGS INC.</issuerName>
        <issuerTradingSymbol>GNRC</issuerTradingSymbol>
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    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001108220</rptOwnerCik>
            <rptOwnerName>WALSH TIMOTHY J.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O CCMP CAPITAL ADVISORS, LLC</rptOwnerStreet1>
            <rptOwnerStreet2>245 PARK AVENUE, 16TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10067</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $0.01 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2013-07-01</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>975000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>33.90</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>7037998</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, par value $0.01 per share</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5905</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">See Exhibit 99.1</footnote>
        <footnote id="F2">Under the terms of the contractual arrangements among the CCMP Capital Funds, CCMP Capital Associates and CCMP Capital (collectively, the &quot;CCMP Fund Entities&quot;), Mr. Walsh is deemed to hold these shares for the benefit of the CCMP Fund Entities and must vote or dispose of such shares upon the direction of CCMP Capital. CCMP Capital is, therefore, deemed to indirectly beneficially own such shares. Mr. Walsh disclaims beneficial ownership of the securities to the extent it exceeds his pecuniary interest therein and the inclusion of the shares in this report shall not be deemed to be an admission of beneficial ownership of the reported shares for the purposes of Section 16 or otherwise.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Timothy J. Walsh</signatureName>
        <signatureDate>2013-07-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
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<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>misc1.htm
<DESCRIPTION>MISCELLANEOUS EXHIBITS
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">The amount shown represents the beneficial ownership of the Issuer&#8217;s common stock by (i) CCMP Capital Investors II, L.P. (&#8220;CCMP Capital Investors&#8221;), (ii) CCMP Capital Investors (Cayman) II, L.P. (&#8220;CCMP Cayman&#8221; and together with CCMP Capital Investors, the &#8220;CCMP Capital Funds&#8221;) and (iii) CCMP Generac Co-Invest, L.P. (&#8220;Generac Co-Invest&#8221;).&#160;&#160;CCMP Capital Associates L.P. (&#8220;CCMP Capital Associates&#8221;) is the general partner of the CCMP Capital Funds.&#160;&#160;CCMP Capital, LLC (&#8220;CCMP Capital&#8221;) wholly-owns (x) CCMP Capital Associates GP, LLC (&#8220;CCMP Capital Associates GP&#8221;), the general partner of CCMP Capital Associates, and (y) Generac Co-Invest GP, LLC (&#8220;Generac Co-Invest GP&#8221;), the general partner of Generac Co-Invest.&#160;&#160;Mr. Walsh is a member of a CCMP Capital investment committee that makes voting and disposition decisions with respect to the Issuer&#8217;s common stock beneficially owned by CCMP Capital.&#160;&#160;As a consequence of his being a member of such CCMP Capital investment committee, Mr. Walsh may be deemed to beneficially own the listed shares. The actual pro rata portion of beneficial ownership of any shares held by the CCMP Capital Funds, CCMP Capital Associates, CCMP Capital Associates GP and CCMP Capital that may be deemed attributable to Mr. Walsh is not readily determinable because it is subject to several variables, including the internal rate of return and vesting of interests within CCMP Capital Associates and the CCMP Capital Funds. Except for a de minimus pecuniary interest attributable to Generac Co-Invest GP, Mr. Walsh has no pecuniary interest in the shares held by Generac Co-Invest.&#160;&#160;Mr. Walsh disclaims beneficial ownership of all of the listed securities to the extent it exceeds his pecuniary interest therein and the inclusion of the shares in this report shall not be deemed to be an admission of beneficial ownership of the reported shares for the purposes of Section 16 or otherwise.</font></div>

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