<SEC-DOCUMENT>0001235468-21-000108.txt : 20210511
<SEC-HEADER>0001235468-21-000108.hdr.sgml : 20210511
<ACCEPTANCE-DATETIME>20210511182540
ACCESSION NUMBER:		0001235468-21-000108
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210507
FILED AS OF DATE:		20210511
DATE AS OF CHANGE:		20210511

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Celaya Jorge
		CENTRAL INDEX KEY:			0001406206

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-51813
		FILM NUMBER:		21912825

	MAIL ADDRESS:	
		STREET 1:		1920 L STREET NW
		STREET 2:		6TH FLOOR
		CITY:			WASHINGTON
		STATE:			DC
		ZIP:			20036

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LIQUIDITY SERVICES INC
		CENTRAL INDEX KEY:			0001235468
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-BUSINESS SERVICES, NEC [7389]
		IRS NUMBER:				522209244
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		6931 ARLINGTON ROAD
		STREET 2:		SUITE 200
		CITY:			BETHESDA
		STATE:			MD
		ZIP:			20814
		BUSINESS PHONE:		2024676868

	MAIL ADDRESS:	
		STREET 1:		6931 ARLINGTON ROAD
		STREET 2:		SUITE 200
		CITY:			BETHESDA
		STATE:			MD
		ZIP:			20814
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_162077192527227.xml
<DESCRIPTION>FORM 4
<TEXT>
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    <periodOfReport>2021-05-07</periodOfReport>

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        <issuerName>LIQUIDITY SERVICES INC</issuerName>
        <issuerTradingSymbol>LQDT</issuerTradingSymbol>
    </issuer>

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            <rptOwnerName>Celaya Jorge</rptOwnerName>
        </reportingOwnerId>
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            <rptOwnerStreet1>C/O LIQUIDITY SERVICES, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>6931 ARLINGTON ROAD, SUITE 200</rptOwnerStreet2>
            <rptOwnerCity>BETHESDA</rptOwnerCity>
            <rptOwnerState>MD</rptOwnerState>
            <rptOwnerZipCode>20814</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Financial Officer</officerTitle>
            <otherText></otherText>
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            <exerciseDate>
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            <expirationDate>
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            <securityTitle>
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                <footnoteId id="F15"/>
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                <value>2025-01-01</value>
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                <underlyingSecurityTitle>
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                    <value>D</value>
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        <derivativeHolding>
            <securityTitle>
                <value>Employee Stock Grant</value>
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            <conversionOrExercisePrice>
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            <exerciseDate>
                <footnoteId id="F16"/>
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            <expirationDate>
                <value>2025-01-01</value>
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                <underlyingSecurityTitle>
                    <value>Common Stock</value>
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                <underlyingSecurityShares>
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                <sharesOwnedFollowingTransaction>
                    <value>9950</value>
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    <footnotes>
        <footnote id="F1">The reporting person exercised 6,925 stock options on a share withhold basis. 2,902 shares were withheld to cover the cost of the options as well as related taxes resulting in a net amount of 4,023 shares acquired.</footnote>
        <footnote id="F2">The reporting person exercised a total of 6,925 stock options, 1,268 of which had an exercise price of $4.47, 2,282 of which had an exercise price of $6.11, and 3,375 of which had an exercise price of $6.69.</footnote>
        <footnote id="F3">Each restricted stock unit is the economic equivalent of one share of Liquidity Services, Inc. Common Stock.</footnote>
        <footnote id="F4">These restricted stock units will vest, if at all, based on the issuer's achievement of certain financial milestones.</footnote>
        <footnote id="F5">These options become exercisable, if at all, based on the issuer's achievement of certain financial milestones.</footnote>
        <footnote id="F6">Represents the exercise of stock options.</footnote>
        <footnote id="F7">15/48th of this option grant vested on January 1, 2019 and thereafter, an additional 1/48th vests each month for thirty-three months.</footnote>
        <footnote id="F8">Twenty-five percent of this restricted stock unit grant vested on January 1, 2019 and thereafter, an additional 1/4th vests on each of October 1, 2019, October 1, 2020, and October 1, 2021.</footnote>
        <footnote id="F9">Twenty-five percent of this restricted stock unit grant vested on January 1, 2020 and thereafter, an additional 1/4th vests on each of January 1, 2021, January 1, 2022, and January 1, 2023.</footnote>
        <footnote id="F10">15/48th of this option grant vested on January 1, 2020 and thereafter, an additional 1/48th vests each month for thirty-three months.</footnote>
        <footnote id="F11">12/48th of this option grant vested on January 1, 2021 and thereafter, an additional 1/48th vests each month for thirty-six months.</footnote>
        <footnote id="F12">Twenty-five percent of this restricted stock unit grant vested on January 1, 2021 and thereafter, an additional 1/4th vests on each of January 1, 2022, January 1, 2023 and January 1, 2024.</footnote>
        <footnote id="F13">12/48th of this option grant will vest on January 1, 2022 and thereafter, 1/48th will vest each month for thirty-six months.</footnote>
        <footnote id="F14">This option becomes exercisable, if at all, based on the Issuer's achievement of certain stock price appreciation milestones.</footnote>
        <footnote id="F15">These restricted stock units vest, if at all, based on the Issuer's achievement of certain stock price appreciation milestones.</footnote>
        <footnote id="F16">Twenty-five percent of this restricted stock unit grant will vest on January 1, 2022 and thereafter, an additional 1/4th will vest on each of January 1, 2023, January 1, 2024 and January 1, 2025.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Mark A. Shaffer, by power of attorney</signatureName>
        <signatureDate>2021-05-11</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
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</SEC-DOCUMENT>
