<SEC-DOCUMENT>0001104659-15-082434-index.html : 20151202 <SEC-HEADER>0001104659-15-082434.hdr.sgml : 20151202 <ACCEPTANCE-DATETIME>20151202150134 ACCESSION NUMBER: 0001104659-15-082434 CONFORMED SUBMISSION TYPE: N-CSR PUBLIC DOCUMENT COUNT: 12 CONFORMED PERIOD OF REPORT: 20150930 FILED AS OF DATE: 20151202 DATE AS OF CHANGE: 20151202 EFFECTIVENESS DATE: 20151202 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: N-CSR SEC ACT: 1940 Act SEC FILE NUMBER: 811-06565 FILM NUMBER: 151264473 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>N-CSR <SEQUENCE>1 <FILENAME>a15-21658_1ncsr.htm <DESCRIPTION>N-CSR <TEXT> Document 1 - file: a15-21658_1ncsr.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.CODEETH <SEQUENCE>2 <FILENAME>a15-21658_1ex99dcodeeth.htm <DESCRIPTION>EX-99.CODEETH <TEXT> Document 2 - file: a15-21658_1ex99dcodeeth.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.CERT <SEQUENCE>3 <FILENAME>a15-21658_1ex99dcert.htm <DESCRIPTION>EX-99.CERT <TEXT> Document 3 - file: a15-21658_1ex99dcert.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.SECTION 19(A) <SEQUENCE>4 <FILENAME>a15-21658_1ex99dsection19a.htm <DESCRIPTION>EX-99.SECTION 19(A) <TEXT> Document 4 - file: a15-21658_1ex99dsection19a.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.906CERT <SEQUENCE>5 <FILENAME>a15-21658_1ex99d906cert.htm <DESCRIPTION>EX-99.906CERT <TEXT> Document 5 - file: a15-21658_1ex99d906cert.htm
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</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>12 <FILENAME>j15216582_aa004.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 12 - file: j15216582_aa004.jpg
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