<SEC-DOCUMENT>0001213900-25-075750.txt : 20250813
<SEC-HEADER>0001213900-25-075750.hdr.sgml : 20250813
<ACCEPTANCE-DATETIME>20250813164632
ACCESSION NUMBER:		0001213900-25-075750
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250811
FILED AS OF DATE:		20250813
DATE AS OF CHANGE:		20250813

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Tenore Michael
		CENTRAL INDEX KEY:			0001856164
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40760
		FILM NUMBER:		251212436

	MAIL ADDRESS:	
		STREET 1:		1715 NORTH GOWER STREET
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90028

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ATLANTIC INTERNATIONAL CORP.
		CENTRAL INDEX KEY:			0001605888
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-HELP SUPPLY SERVICES [7363]
		ORGANIZATION NAME:           	07 Trade & Services
		EIN:				465319744
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		270 SYLVAN AVENUE
		STREET 2:		SUITE 2230
		CITY:			ENGLEWOOD CLIFFS
		STATE:			NJ
		ZIP:			07632
		BUSINESS PHONE:		2018994470

	MAIL ADDRESS:	
		STREET 1:		270 SYLVAN AVENUE
		STREET 2:		SUITE 2230
		CITY:			ENGLEWOOD CLIFFS
		STATE:			NJ
		ZIP:			07632

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SeqLL, Inc.
		DATE OF NAME CHANGE:	20140417
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>ownership.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-08-11</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001605888</issuerCik>
        <issuerName>ATLANTIC INTERNATIONAL CORP.</issuerName>
        <issuerTradingSymbol>ATLN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001856164</rptOwnerCik>
            <rptOwnerName>Tenore Michael</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>270 SYLVAN AVENUE, SUITE 2230</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ENGLEWOOD CLIFFS,</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07632</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>General Counsel</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Award</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>.0001</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2025-08-11</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2025-08-11</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>264860</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2026-01-01</value>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>264860</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>842031</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">These shares were awarded by the Board of Directors on August 11, 2025, as the Company had agreed to review the equity compensation for senior management within one year of the June 18, 2024 closing date of the acquisition of Lyneer Investments LLC.</footnote>
        <footnote id="F2">This award does not have an expiration date.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Michael Tenore</signatureName>
        <signatureDate>2025-08-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
