<SEC-DOCUMENT>0000874716-25-000142.txt : 20250814
<SEC-HEADER>0000874716-25-000142.hdr.sgml : 20250814
<ACCEPTANCE-DATETIME>20250814180034
ACCESSION NUMBER:		0000874716-25-000142
CONFORMED SUBMISSION TYPE:	5/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20241231
FILED AS OF DATE:		20250814
DATE AS OF CHANGE:		20250814

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Erickson Michael G
		CENTRAL INDEX KEY:			0002005385
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		5/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-19271
		FILM NUMBER:		251221491

	MAIL ADDRESS:	
		STREET 1:		ONE IDEXX DRIVE
		CITY:			WESTBROOK
		STATE:			ME
		ZIP:			04092

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			IDEXX LABORATORIES INC /DE
		CENTRAL INDEX KEY:			0000874716
		STANDARD INDUSTRIAL CLASSIFICATION:	IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES [2835]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				010393723
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		ONE IDEXX DRIVE
		CITY:			WESTBROOK
		STATE:			ME
		ZIP:			04092-2041
		BUSINESS PHONE:		2075560300

	MAIL ADDRESS:	
		STREET 1:		ONE IDEXX DRIVE
		CITY:			WESTBROOK
		STATE:			ME
		ZIP:			04092-2041

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	IDEXX CORP / DE
		DATE OF NAME CHANGE:	19600201
</SEC-HEADER>
<DOCUMENT>
<TYPE>5/A
<SEQUENCE>1
<FILENAME>wk-form5a_1755208830.xml
<DESCRIPTION>FORM 5/A
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>5/A</documentType>

    <periodOfReport>2024-12-31</periodOfReport>

    <dateOfOriginalSubmission>2025-01-21</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <form3HoldingsReported>0</form3HoldingsReported>

    <form4TransactionsReported>0</form4TransactionsReported>

    <issuer>
        <issuerCik>0000874716</issuerCik>
        <issuerName>IDEXX LABORATORIES INC /DE</issuerName>
        <issuerTradingSymbol>IDXX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002005385</rptOwnerCik>
            <rptOwnerName>Erickson Michael G</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ONE IDEXX DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>WESTBROOK</rptOwnerCity>
            <rptOwnerState>ME</rptOwnerState>
            <rptOwnerZipCode>04092</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Executive Vice President</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>9742.366</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">On January 21, 2025, the reporting person mistakenly filed a Form 5 reporting an omitted holding of 8,588 shares. As of December 31, 2024, the number of shares beneficially owned by the reporting person was 9,742.366 shares. This overstatement in the number of shares beneficially owned was included in the Forms 4 filed by the reporting person after such Form 5 was filed (and before this amendment was filed).</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Lily J. Lu, Attorney-in-Fact for Michael G. Erickson</signatureName>
        <signatureDate>2025-08-14</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
