<SEC-DOCUMENT>0001309402-25-000139.txt : 20250829
<SEC-HEADER>0001309402-25-000139.hdr.sgml : 20250829
<ACCEPTANCE-DATETIME>20250829162813
ACCESSION NUMBER:		0001309402-25-000139
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250827
FILED AS OF DATE:		20250829
DATE AS OF CHANGE:		20250829

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Simpkins G Patrich Jr
		CENTRAL INDEX KEY:			0001549615
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32924
		FILM NUMBER:		251281292

	MAIL ADDRESS:	
		STREET 1:		1811 AKSARBEN DRIVE
		CITY:			OMAHA
		STATE:			NE
		ZIP:			68106

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Green Plains Inc.
		CENTRAL INDEX KEY:			0001309402
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL ORGANIC CHEMICALS [2860]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		EIN:				841652107
		STATE OF INCORPORATION:			IA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1811 AKSARBEN DRIVE
		CITY:			OMAHA
		STATE:			NE
		ZIP:			68106
		BUSINESS PHONE:		402-884-8700

	MAIL ADDRESS:	
		STREET 1:		1811 AKSARBEN DRIVE
		CITY:			OMAHA
		STATE:			NE
		ZIP:			68106

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wk-form4_1756499289.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-08-27</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001549615</rptOwnerCik>
            <rptOwnerName>Simpkins G Patrich Jr</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1811 AKSARBEN DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>OMAHA</rptOwnerCity>
            <rptOwnerState>NE</rptOwnerState>
            <rptOwnerZipCode>68106</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>CEO Fluid Quip</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-08-27</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>26359</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>9.95</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>241273</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-08-27</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>38954</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>9.95</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>280227</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Disposition represents tax withholding on the portion of previously reported restricted stock grants that vested on date indicated herein in accordance with the Employment Agreement filed by the Company on form 10-Q on May 1, 2014.</footnote>
        <footnote id="F2">Represents 10,099 shares issued under the March 2023 PSU grant, 11,516 shares issued under the March 2024 PSU grant, and 48,388 shares issued under the March 2025 PSU grant, all net of withholdings. All shares vested at target in accordance with the Employment Agreement filed by the Company on form 10-Q on May 1, 2014.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ G. Patrich Simpkins Jr</signatureName>
        <signatureDate>2025-08-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
