<SEC-DOCUMENT>0001213900-24-097518.txt : 20241113
<SEC-HEADER>0001213900-24-097518.hdr.sgml : 20241113
<ACCEPTANCE-DATETIME>20241113164143
ACCESSION NUMBER:		0001213900-24-097518
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20241112
FILED AS OF DATE:		20241113
DATE AS OF CHANGE:		20241113

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			McGregor Bryon T
		CENTRAL INDEX KEY:			0001462858
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-21467
		FILM NUMBER:		241455103

	MAIL ADDRESS:	
		STREET 1:		400 CAPITAL MALL, #2060
		CITY:			SACRAMENTO
		STATE:			CA
		ZIP:			95814

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Alto Ingredients, Inc.
		CENTRAL INDEX KEY:			0000778164
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL ORGANIC CHEMICALS [2860]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		IRS NUMBER:				412170618
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		400 CAPITOL MALL, SUITE 2060
		CITY:			SACRAMENTO
		STATE:			CA
		ZIP:			95814
		BUSINESS PHONE:		916-403-2123

	MAIL ADDRESS:	
		STREET 1:		400 CAPITOL MALL, SUITE 2060
		CITY:			SACRAMENTO
		STATE:			CA
		ZIP:			95814

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Pacific Ethanol, Inc.
		DATE OF NAME CHANGE:	20050324

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ACCESSITY CORP
		DATE OF NAME CHANGE:	20030627

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DRIVERSSHIELD COM CORP
		DATE OF NAME CHANGE:	20001115
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>ownership.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2024-11-12</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000778164</issuerCik>
        <issuerName>Alto Ingredients, Inc.</issuerName>
        <issuerTradingSymbol>ALTO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001462858</rptOwnerCik>
            <rptOwnerName>McGregor Bryon T</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1300 SOUTH SECOND STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>PEKIN</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>61554</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President &amp; CEO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2024-11-12</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>37000</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>1.3628</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>834265</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $1.3550 to $1.3785, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Bryon T. McGregor</signatureName>
        <signatureDate>2024-11-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
