<SEC-DOCUMENT>0001567619-19-015980.txt : 20190807
<SEC-HEADER>0001567619-19-015980.hdr.sgml : 20190807
<ACCEPTANCE-DATETIME>20190807183201
ACCESSION NUMBER:		0001567619-19-015980
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20190805
FILED AS OF DATE:		20190807
DATE AS OF CHANGE:		20190807

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MAZELSKY JAY
		CENTRAL INDEX KEY:			0001556270

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-19271
		FILM NUMBER:		191006912

	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]
		IRS NUMBER:				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>
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<TYPE>4
<SEQUENCE>1
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<DESCRIPTION>FORM 4
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    <periodOfReport>2019-08-05</periodOfReport>

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        <issuerName>IDEXX LABORATORIES INC /DE</issuerName>
        <issuerTradingSymbol>IDXX</issuerTradingSymbol>
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            <rptOwnerName>MAZELSKY JAY</rptOwnerName>
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            <rptOwnerStreet1>ONE IDEXX DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>WESTBROOK</rptOwnerCity>
            <rptOwnerState>ME</rptOwnerState>
            <rptOwnerZipCode>04092</rptOwnerZipCode>
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            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Interim President &amp; CEO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
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                <value>Common Stock</value>
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            <transactionDate>
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                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
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    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Non-Qualified Stock Option (right-to-buy)</value>
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            </conversionOrExercisePrice>
            <transactionDate>
                <value>2019-08-05</value>
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                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <value>2029-08-04</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>20116</value>
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            </underlyingSecurity>
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                <sharesOwnedFollowingTransaction>
                    <value>20116</value>
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                    <value>D</value>
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        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Unit</value>
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            <transactionDate>
                <value>2019-08-05</value>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
                <transactionShares>
                    <value>1923</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F6"/>
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                <transactionAcquiredDisposedCode>
                    <value>A</value>
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            <expirationDate>
                <footnoteId id="F4"/>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
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                <underlyingSecurityShares>
                    <value>1923</value>
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                <sharesOwnedFollowingTransaction>
                    <value>9439</value>
                </sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        <derivativeTransaction>
            <securityTitle>
                <value>Non-Qualified Stock Option (right-to-buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>45.84</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2019-08-05</value>
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                <transactionCode>M</transactionCode>
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                    <value>10000</value>
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                <transactionPricePerShare>
                    <footnoteId id="F6"/>
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            <exerciseDate>
                <footnoteId id="F5"/>
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            <expirationDate>
                <value>2029-08-04</value>
            </expirationDate>
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                    <value>10000</value>
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            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>16028</value>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
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        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Includes a total of 58 shares acquired under the IDEXX Laboratories, Inc. Employee Stock Purchase Plan on March 29, 2019 and June 28, 2019.</footnote>
        <footnote id="F2">Represents the weighted average price of the shares sold ranging from a low of $256.28 to a high of $257.29 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price.</footnote>
        <footnote id="F3">Grant of option to buy shares of Issuer common stock that becomes exercisable in five annual installments beginning August 5, 2020.</footnote>
        <footnote id="F4">Each restricted stock unit (&quot;RSU&quot;) represents a contingent right to receive one share of Issuer common stock. This RSU grant vests in five annual installments, beginning August 5, 2020.</footnote>
        <footnote id="F5">Grant of option to buy 13,014 shares of Issuer common stock that became exercisable in five annual installments beginning February 14, 2014 without giving effect to the 2-for-1 stock split of IDEXX Laboratories, Inc. common stock that occurred on June 15, 2015 (the &quot;Stock Split&quot;).  The number of derivative securities reported as beneficially owned with respect to this option and its exercise price were adjusted to reflect the Stock Split.</footnote>
        <footnote id="F6">Not applicable.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Lily J. Lu, Attorney-in-Fact for Jay Mazelsky</signatureName>
        <signatureDate>2019-08-07</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
