<SEC-DOCUMENT>0000950170-25-101452.txt : 20250801
<SEC-HEADER>0000950170-25-101452.hdr.sgml : 20250801
<ACCEPTANCE-DATETIME>20250801163005
ACCESSION NUMBER:		0000950170-25-101452
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250730
FILED AS OF DATE:		20250801
DATE AS OF CHANGE:		20250801

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			OLSCHAN BRIAN S
		CENTRAL INDEX KEY:			0001213244
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-07698
		FILM NUMBER:		251176585

	MAIL ADDRESS:	
		STREET 1:		C/O ACME UNITED CORP
		STREET 2:		60 ROUND HILL ROAD
		CITY:			FAIRFIELD
		STATE:			CT
		ZIP:			06824

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ACME UNITED CORP
		CENTRAL INDEX KEY:			0000002098
		STANDARD INDUSTRIAL CLASSIFICATION:	CUTLERY, HANDTOOLS & GENERAL HARDWARE [3420]
		ORGANIZATION NAME:           	04 Manufacturing
		EIN:				060236700
		STATE OF INCORPORATION:			CT
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1 WATERVIEW DRIVE
		CITY:			SHELTON
		STATE:			CT
		ZIP:			06484
		BUSINESS PHONE:		203-254-6060

	MAIL ADDRESS:	
		STREET 1:		1 WATERVIEW DRIVE
		CITY:			SHELTON
		STATE:			CT
		ZIP:			06484

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ACME SHEAR CO
		DATE OF NAME CHANGE:	19710713
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>ownership.xml
<DESCRIPTION>4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-07-30</periodOfReport>

    <issuer>
        <issuerCik>0000002098</issuerCik>
        <issuerName>ACME UNITED CORP</issuerName>
        <issuerTradingSymbol>ACU</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001213244</rptOwnerCik>
            <rptOwnerName>OLSCHAN BRIAN S</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1 WATERVIEW DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SHELTON</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06484</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>President and COO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>false</aff10b5One>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Employee Stock Option</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>40.60</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2025-07-30</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2025-07-30</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>20000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>40.60</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2026-07-30</value>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2035-07-30</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>20000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>256700</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">5,000 shares will vest on July 30, 2026.5,000 shares will vest on July 30, 2027. 5,000 shares will vest on July 30, 2028. 5,000 shares will vest on July 30, 2029.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Brian S. Olschan</signatureName>
        <signatureDate>2025-08-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
