<SEC-DOCUMENT>0001104659-25-069047.txt : 20250718
<SEC-HEADER>0001104659-25-069047.hdr.sgml : 20250718
<ACCEPTANCE-DATETIME>20250718163117
ACCESSION NUMBER:		0001104659-25-069047
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20250716
FILED AS OF DATE:		20250718
DATE AS OF CHANGE:		20250718

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Gagnon Robert E.
		CENTRAL INDEX KEY:			0001504983
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33957
		FILM NUMBER:		251134863

	MAIL ADDRESS:	
		STREET 1:		C/O BIOGEN IDEC INC.
		STREET 2:		133 BOSTON POST ROAD
		CITY:			WESTON
		STATE:			MA
		ZIP:			02493

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HARVARD BIOSCIENCE INC
		CENTRAL INDEX KEY:			0001123494
		STANDARD INDUSTRIAL CLASSIFICATION:	LABORATORY ANALYTICAL INSTRUMENTS [3826]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		EIN:				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>
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<SEQUENCE>1
<FILENAME>tm2521202-1_3seq1.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
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<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2025-07-16</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001504983</rptOwnerCik>
            <rptOwnerName>Gagnon Robert E.</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>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <remarks>Exhibit 24 - Power of Attorney</remarks>

    <ownerSignature>
        <signatureName>/s/ Robert Gagnon</signatureName>
        <signatureDate>2025-07-18</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
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<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>tm2521202d1_ex24.htm
<DESCRIPTION>EXHIBIT 24
<TEXT>
<HTML>
<HEAD>
     <TITLE></TITLE>
</HEAD>
<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

<P STYLE="text-align: right; margin: 0"><B>Exhibit 24</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>POWER OF ATTORNEY</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">KNOW ALL PERSONS BY THESE
PRESENTS, that I, ROBER GAGNON, hereby constitute and appoint Mark Mihanovic, Daniel L. Woodard, Matt Moreno, and each of them, my true
and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution for me and in my name, place and stead, to
enroll me in EDGAR Next; act as an account administrator for my EDGAR account; appoint, remove and replace account administrators, account
users, and delegated entities; maintain the security of my EDGAR account, including modification of access codes; maintain, modify and
certify the accuracy of information on my EDGAR account dashboard; sign any Form&nbsp;ID (Uniform Application for Access Codes to File
on EDGAR), reports on Form&nbsp;3 (Initial Statement of Beneficial Ownership of Securities), Form&nbsp;4 (Statement of Changes in Beneficial
Ownership of Securities), Form&nbsp;5 (Annual Statement of Beneficial Ownership of Securities) and Schedules 13D and 13G relating to transactions
by me in shares of common stock or other securities of Harvard Bioscience,&nbsp;Inc. and all amendments thereto, and to file the same,
with the Securities and Exchange Commission and the appropriate securities exchange. I hereby grant unto said attorneys-in-fact and agents,
and each of them, or their substitutes, full power and authority to do and perform each and every act and thing requisite or necessary
to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as I might or could do
in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, and each of them, or their substitutes, may lawfully
do or cause to be done by virtue hereof. The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity
at the request of the undersigned, are not assuming any of the undersigned's responsibilities to comply with Sections 13 and 16 of the
Securities Exchange Act of 1934. This Power of Attorney shall be effective until such time as I deliver a written revocation thereof to
the above-named attorneys-in-fact and agents.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 6%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Dated:</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; width: 40%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7/18/2025</FONT></TD>
    <TD STYLE="width: 4%">&nbsp;</TD>
    <TD STYLE="width: 4%">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; width: 46%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ Robert Gagnon</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Robert Gagnon</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="margin: 0"></P>

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<P STYLE="margin: 0"></P>

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</SEC-DOCUMENT>
