<SEC-DOCUMENT>0000313143-25-000064.txt : 20251103
<SEC-HEADER>0000313143-25-000064.hdr.sgml : 20251103
<ACCEPTANCE-DATETIME>20251103161912
ACCESSION NUMBER:		0000313143-25-000064
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20251031
FILED AS OF DATE:		20251103
DATE AS OF CHANGE:		20251103

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Galvin Roy
		CENTRAL INDEX KEY:			0001950021
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14041
		FILM NUMBER:		251444357

	MAIL ADDRESS:	
		STREET 1:		C/O HAEMONETICS CORPORATION
		STREET 2:		125 SUMMER STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HAEMONETICS CORP
		CENTRAL INDEX KEY:			0000313143
		STANDARD INDUSTRIAL CLASSIFICATION:	SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		EIN:				042882273
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			0328

	BUSINESS ADDRESS:	
		STREET 1:		125 SUMMER STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110
		BUSINESS PHONE:		7818487100

	MAIL ADDRESS:	
		STREET 1:		125 SUMMER STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-10-31</periodOfReport>

    <issuer>
        <issuerCik>0000313143</issuerCik>
        <issuerName>HAEMONETICS CORP</issuerName>
        <issuerTradingSymbol>HAE</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001950021</rptOwnerCik>
            <rptOwnerName>Galvin Roy</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>125 SUMMER STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02110</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isOfficer>1</isOfficer>
            <officerTitle>EVP, Chief Commercial Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-10-31</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>145</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>50.01</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>12811</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents shares withheld for tax obligations in connection with the vesting of certain restricted stock units (&quot;RSUs&quot;) previously reported in Table I.</footnote>
        <footnote id="F2">This number includes unvested RSUs previously reported as well as 24 shares acquired by the reporting person under the Issuer's 2007 Employee Stock Purchase Plan (as amended) on October 31, 2025.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Thomas V. Powers, attorney-in-fact for Mr. Galvin</signatureName>
        <signatureDate>2025-11-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
