<SEC-DOCUMENT>0001104659-23-100073-index.html : 20230912
<SEC-HEADER>0001104659-23-100073.hdr.sgml : 20230912
<ACCEPTANCE-DATETIME>20230912170424
ACCESSION NUMBER:		0001104659-23-100073
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20230906
ITEM INFORMATION:		Changes in Registrant's Certifying Accountant
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20230912
DATE AS OF CHANGE:		20230912

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:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-04889
		FILM NUMBER:		231250860

	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>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>tm2325781d1_8k.htm
<DESCRIPTION>FORM 8-K
<TEXT>
Document 1 - file: tm2325781d1_8k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-16.1
<SEQUENCE>2
<FILENAME>tm2325781d1_ex16-1.htm
<DESCRIPTION>EXHIBIT 16.1
<TEXT>
Document 2 - file: tm2325781d1_ex16-1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>tm2325781d1_ex16-1img001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: tm2325781d1_ex16-1img001.jpg

</DOCUMENT>
</SEC-DOCUMENT>