<SEC-DOCUMENT>0001104659-16-125284-index.html : 20160603
<SEC-HEADER>0001104659-16-125284.hdr.sgml : 20160603
<ACCEPTANCE-DATETIME>20160603114424
ACCESSION NUMBER:		0001104659-16-125284
CONFORMED SUBMISSION TYPE:	N-CSRS
PUBLIC DOCUMENT COUNT:		11
CONFORMED PERIOD OF REPORT:	20160331
FILED AS OF DATE:		20160603
DATE AS OF CHANGE:		20160603
EFFECTIVENESS DATE:		20160603

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:		161694651

	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>a16-9673_2ncsrs.htm
<DESCRIPTION>N-CSRS
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Document 1 - file: a16-9673_2ncsrs.htm

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<TYPE>EX-99.CERT
<SEQUENCE>2
<FILENAME>a16-9673_2ex99dcert.htm
<DESCRIPTION>EX-99.CERT
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Document 2 - file: a16-9673_2ex99dcert.htm

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<DOCUMENT>
<TYPE>EX-99.SECTION 19(A)
<SEQUENCE>3
<FILENAME>a16-9673_2ex99dsection19a.htm
<DESCRIPTION>EX-99.SECTION 19(A)
<TEXT>
Document 3 - file: a16-9673_2ex99dsection19a.htm

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<DOCUMENT>
<TYPE>EX-99.906CERT
<SEQUENCE>4
<FILENAME>a16-9673_2ex99d906cert.htm
<DESCRIPTION>EX-99.906CERT
<TEXT>
Document 4 - file: a16-9673_2ex99d906cert.htm

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Document 6 - file: g96732cai001.gif

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Document 7 - file: j1696731_aa001.jpg

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Document 8 - file: j1696731_ba002.jpg

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Document 9 - file: j1696731_ba003.jpg

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Document 10 - file: j1696731_ba004.jpg

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Document 11 - file: j1696731_ba005.jpg

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Document 12 - file: j1696731_ba006.jpg

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