<SEC-DOCUMENT>0000921895-20-001024-index.html : 20200406
<SEC-HEADER>0000921895-20-001024.hdr.sgml : 20200406
<ACCEPTANCE-DATETIME>20200406170258
ACCESSION NUMBER:		0000921895-20-001024
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20200406
DATE AS OF CHANGE:		20200406

SUBJECT COMPANY:	

	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

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-60603
		FILM NUMBER:		20777636

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ENGINE CAPITAL, L.P.
		CENTRAL INDEX KEY:			0001580320
		IRS NUMBER:				364755478
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		1370 BROADWAY
		STREET 2:		5TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10018
		BUSINESS PHONE:		(212) 321-0048

	MAIL ADDRESS:	
		STREET 1:		1370 BROADWAY
		STREET 2:		5TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10018

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Engine Capital Management, L.P.
		DATE OF NAME CHANGE:	20180628

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Engine Capital, L.P.
		DATE OF NAME CHANGE:	20130628
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>sc13da209488031_04062020.htm
<TEXT>
Document 1 - file: sc13da209488031_04062020.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>ex991to13da209488031_040620.htm
<TEXT>
Document 2 - file: ex991to13da209488031_040620.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>3
<FILENAME>ex992to13da209488031_040620.pdf
<DESCRIPTION>EXHIBIT 99.2 - LETTER TO ISSUER
<TEXT>
Document 3 - file: ex992to13da209488031_040620.pdf

</DOCUMENT>
</SEC-DOCUMENT>