<SEC-DOCUMENT>0001140361-15-000064.txt : 20150102
<SEC-HEADER>0001140361-15-000064.hdr.sgml : 20150102
<ACCEPTANCE-DATETIME>20150102145717
ACCESSION NUMBER:		0001140361-15-000064
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20141230
FILED AS OF DATE:		20150102
DATE AS OF CHANGE:		20150102

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Green Plains Inc.
		CENTRAL INDEX KEY:			0001309402
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL ORGANIC CHEMICALS [2860]
		IRS NUMBER:				841652107
		STATE OF INCORPORATION:			IA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		450 REGENCY PARKWAY
		STREET 2:		SUITE 400
		CITY:			OMAHA
		STATE:			NE
		ZIP:			68114
		BUSINESS PHONE:		402-884-8700

	MAIL ADDRESS:	
		STREET 1:		450 REGENCY PARKWAY
		STREET 2:		SUITE 400
		CITY:			OMAHA
		STATE:			NE
		ZIP:			68114

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Green Plains Renewable Energy, Inc.
		DATE OF NAME CHANGE:	20100106

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GREEN PLAINS RENEWABLE ENERGY, INC.
		DATE OF NAME CHANGE:	20060314

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Green Plains Renewable Energy, Inc.
		DATE OF NAME CHANGE:	20041123

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Tourbillon Capital Partners LP
		CENTRAL INDEX KEY:			0001592476
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32924
		FILM NUMBER:		15501179

	BUSINESS ADDRESS:	
		STREET 1:		444 MADISON AVENUE
		STREET 2:		26TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		212-554-2500

	MAIL ADDRESS:	
		STREET 1:		444 MADISON AVENUE
		STREET 2:		26TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2014-12-30</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001309402</issuerCik>
        <issuerName>Green Plains Inc.</issuerName>
        <issuerTradingSymbol>GPRE</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001592476</rptOwnerCik>
            <rptOwnerName>Tourbillon Capital Partners LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>444 MADISON AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>26TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2014-12-30</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>38848</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>25.1561</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1014903</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Tourbillon Global Master Fund Ltd.</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2014-12-30</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1152</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>25.1561</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>30097</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By GFS Map Trust Tourbillon</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">This Form 4 is filed jointly Tourbillon Capital Partners LP (&quot;Tourbillon&quot;) and Jason H. Karp (together, the &quot;Reporting Persons&quot;). Each of the Reporting Persons disclaims beneficial ownership of the shares of
Common Stock reported herein except to the extent of his or its pecuniary interest therein.</footnote>
        <footnote id="F2">Securities held for the account of Tourbillon Global Master Fund Ltd. (&quot;Global Master Fund&quot;). Each of Tourbillon, as the Investment Manager of Global Master Fund, and Jason H. Karp as the Chief Executive
Officer of Tourbillon, may be deemed to beneficially own the securities held for the account of Global Master Fund.</footnote>
        <footnote id="F3">Securities held for the account of GFS Map Trust Tourbillon (&quot;GFS Map Trust&quot;). Each of Tourbillon, as the Investment Manager of GFS Map Trust, and Jason H. Karp as the Chief Executive Officer of
Tourbillon, may be deemed to beneficially own the securities held for the account of GFS Map Trust.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Brian A. Kessler, Chief Financial Officer and Chief Compliance Officer of Tourbillon Capital Partners LP</signatureName>
        <signatureDate>2015-01-02</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Jason H. Karp</signatureName>
        <signatureDate>2015-01-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
