<SEC-DOCUMENT>0001104659-19-036644-index.html : 20190620
<SEC-HEADER>0001104659-19-036644.hdr.sgml : 20190620
<ACCEPTANCE-DATETIME>20190620143735
ACCESSION NUMBER:		0001104659-19-036644
CONFORMED SUBMISSION TYPE:	POS EX
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20190620
DATE AS OF CHANGE:		20190620
EFFECTIVENESS DATE:		20190620

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TEKLA LIFE SCIENCES INVESTORS
		CENTRAL INDEX KEY:			0000884121
		IRS NUMBER:				043147016
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		POS EX
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-195326
		FILM NUMBER:		19908257

	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 LIFE SCIENCES INVESTORS
		DATE OF NAME CHANGE:	19920929
</SEC-HEADER>
<DOCUMENT>
<TYPE>POS EX
<SEQUENCE>1
<FILENAME>a19-11731_1posex.htm
<DESCRIPTION>POST-EFFECTIVE AMENDMENT FILED SOLELY TO ADD EXHIBITS
<TEXT>
Document 1 - file: a19-11731_1posex.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.B(A)(XVI)
<SEQUENCE>2
<FILENAME>a19-11731_1ex99dbaxvi.htm
<DESCRIPTION>EX-99.B(A)(XVI)
<TEXT>
Document 2 - file: a19-11731_1ex99dbaxvi.htm

</DOCUMENT>
</SEC-DOCUMENT>