<SEC-DOCUMENT>0001104659-19-021314-index.html : 20190415
<SEC-HEADER>0001104659-19-021314.hdr.sgml : 20190415
<ACCEPTANCE-DATETIME>20190415150623
ACCESSION NUMBER:		0001104659-19-021314
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20190415
DATE AS OF CHANGE:		20190415
EFFECTIVENESS DATE:		20190415

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:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-06565
		FILM NUMBER:		19748409

	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>DEFA14A
<SEQUENCE>1
<FILENAME>a19-3008_6defa14a.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: a19-3008_6defa14a.htm

</DOCUMENT>
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<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g30086bgi001.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g30086bgi001.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g30086bgi002.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g30086bgi002.gif

</DOCUMENT>
</SEC-DOCUMENT>