<SEC-DOCUMENT>0001104659-19-033994-index.html : 20190605
<SEC-HEADER>0001104659-19-033994.hdr.sgml : 20190605
<ACCEPTANCE-DATETIME>20190605144122
ACCESSION NUMBER:		0001104659-19-033994
CONFORMED SUBMISSION TYPE:	N-CSRS
PUBLIC DOCUMENT COUNT:		11
CONFORMED PERIOD OF REPORT:	20190331
FILED AS OF DATE:		20190605
DATE AS OF CHANGE:		20190605
EFFECTIVENESS DATE:		20190605

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TEKLA HEALTHCARE INVESTORS
		CENTRAL INDEX KEY:			0000805267
		IRS NUMBER:				046564285
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		N-CSRS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-04889
		FILM NUMBER:		19879486

	BUSINESS ADDRESS:	
		STREET 1:		100 FEDERAL STREET
		STREET 2:		19TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110
		BUSINESS PHONE:		6177728515

	MAIL ADDRESS:	
		STREET 1:		100 FEDERAL STREET
		STREET 2:		19TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	H&Q HEALTHCARE INVESTORS
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
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<TYPE>N-CSRS
<SEQUENCE>1
<FILENAME>a19-7194_1ncsrs.htm
<DESCRIPTION>N-CSRS
<TEXT>
Document 1 - file: a19-7194_1ncsrs.htm

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<DOCUMENT>
<TYPE>EX-99.CERT
<SEQUENCE>2
<FILENAME>a19-7194_1ex99dcert.htm
<DESCRIPTION>EX-99.CERT
<TEXT>
Document 2 - file: a19-7194_1ex99dcert.htm

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<DOCUMENT>
<TYPE>EX-99.SECTION 19(A)
<SEQUENCE>3
<FILENAME>a19-7194_1ex99dsection19a.htm
<DESCRIPTION>EX-99.SECTION 19(A)
<TEXT>
Document 3 - file: a19-7194_1ex99dsection19a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.906CERT
<SEQUENCE>4
<FILENAME>a19-7194_1ex99d906cert.htm
<DESCRIPTION>EX-99.906CERT
<TEXT>
Document 4 - file: a19-7194_1ex99d906cert.htm

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Document 5 - file: j1971942_qxp001.jpg

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<FILENAME>j1971942_qxp002.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: j1971942_qxp002.jpg

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<SEQUENCE>7
<FILENAME>j1971942_qxp003.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: j1971942_qxp003.jpg

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<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>j1971942_qxp004.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: j1971942_qxp004.jpg

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Document 9 - file: j1971942_qxp005.jpg

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<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>j1971942_qxp006.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: j1971942_qxp006.jpg

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Document 11 - file: j1971942_qxp007.jpg

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