<SEC-DOCUMENT>0001209191-20-040689.txt : 20200702
<SEC-HEADER>0001209191-20-040689.hdr.sgml : 20200702
<ACCEPTANCE-DATETIME>20200702190738
ACCESSION NUMBER:		0001209191-20-040689
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20200701
FILED AS OF DATE:		20200702
DATE AS OF CHANGE:		20200702

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Steele Susan M.
		CENTRAL INDEX KEY:			0001780523

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33957
		FILM NUMBER:		201011548

	MAIL ADDRESS:	
		STREET 1:		C/O HILL INTERNATIONAL, INC.
		STREET 2:		2005 MARKET ST., 17TH FLOOR
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19103

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HARVARD BIOSCIENCE INC
		CENTRAL INDEX KEY:			0001123494
		STANDARD INDUSTRIAL CLASSIFICATION:	LABORATORY ANALYTICAL INSTRUMENTS [3826]
		IRS NUMBER:				043306140
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		84 OCTOBER HILL RD
		CITY:			HOLLISTON
		STATE:			MA
		ZIP:			01746
		BUSINESS PHONE:		5088938999

	MAIL ADDRESS:	
		STREET 1:		84 OCTOBER HILL ROAD
		CITY:			HOLLISTON
		STATE:			MA
		ZIP:			01746
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2020-07-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001123494</issuerCik>
        <issuerName>HARVARD BIOSCIENCE INC</issuerName>
        <issuerTradingSymbol>HBIO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001780523</rptOwnerCik>
            <rptOwnerName>Steele Susan M.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O HARVARD BIOSCIENCE, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>84 OCTOBER HILL ROAD</rptOwnerStreet2>
            <rptOwnerCity>HOLLISTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>01746</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2020-07-01</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1300</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>38600</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents an award of 1,300 restricted stock units that vests in two equal installments on each of September 30, 2020 and December 31, 2020. This retainer award was granted in lieu and satisfaction of the annual cash retainer compensation to be earned by the director in connection with her service as a member of the Compensation Committee of the Issuer's Board of Directors, which service commenced on June 11, 2020. The number of shares of common stock subject to such retainer award is equal to the amount of cash that would have been received had the applicable retainer all been paid in cash on a prorated basis, divided by the average daily closing market price of the Issuer's common stock for the month of April, rounded to the nearest 100 shares.</footnote>
        <footnote id="F2">Includes (a) the award described in footnote (1) above, (b) an award of 28,100 restricted stock units vesting on the earlier to occur of (i) the date of the Issuer's next Annual Meeting of Stockholders or (ii) June 18, 2021, (c) an award of 6,133 remaining unvested restricted stock units vesting in equal quarterly installments on September 30, 2020 and December 31, 2020, and (d) 3,067 shares of common stock held by the Reporting Person.</footnote>
    </footnotes>

    <remarks>This form has been signed under power of attorney.</remarks>

    <ownerSignature>
        <signatureName>/s/ David Sirois, by power of attorney</signatureName>
        <signatureDate>2020-07-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
