<SEC-DOCUMENT>0001104659-17-024001-index.html : 20170418
<SEC-HEADER>0001104659-17-024001.hdr.sgml : 20170418
<ACCEPTANCE-DATETIME>20170418121611
ACCESSION NUMBER:		0001104659-17-024001
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		7
CONFORMED PERIOD OF REPORT:	20170615
FILED AS OF DATE:		20170418
DATE AS OF CHANGE:		20170418
EFFECTIVENESS DATE:		20170418

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:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-06565
		FILM NUMBER:		17766434

	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>
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<TYPE>DEF 14A
<SEQUENCE>1
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<TEXT>
Document 1 - file: a17-7502_3def14a.htm

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Document 3 - file: j1775024_aa001.jpg

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<TEXT>
Document 4 - file: g75023dai001.gif

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<SEQUENCE>5
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<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g75023dai002.gif

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<TEXT>
Document 6 - file: g75023dai003.gif

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Document 7 - file: g75023dai004.gif

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<SEQUENCE>8
<FILENAME>g75023bii001.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: g75023bii001.gif

</DOCUMENT>
</SEC-DOCUMENT>