<SEC-DOCUMENT>0001104659-24-001273-index.html : 20240104
<SEC-HEADER>0001104659-24-001273.hdr.sgml : 20240104
<ACCEPTANCE-DATETIME>20240104142321
ACCESSION NUMBER:		0001104659-24-001273
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20240102
FILED AS OF DATE:		20240104
DATE AS OF CHANGE:		20240104

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Reit Todd
		CENTRAL INDEX KEY:			0001817331
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-06565
		FILM NUMBER:		24511197

	MAIL ADDRESS:	
		STREET 1:		C/O ABERDEEN STANDARD INVESTMENTS
		STREET 2:		1900 MARKET STREET, SUITE 200
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19103

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			abrdn Life Sciences Investors
		CENTRAL INDEX KEY:			0000884121
		STANDARD INDUSTRIAL CLASSIFICATION:	UNKNOWN SIC - 0000 [0000]
		ORGANIZATION NAME:           	
		IRS NUMBER:				043147016
		STATE OF INCORPORATION:			PA
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		1900 MARKET STREET
		STREET 2:		SUITE 200
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19103
		BUSINESS PHONE:		6177728515

	MAIL ADDRESS:	
		STREET 1:		1900 MARKET STREET
		STREET 2:		SUITE 200
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19103

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TEKLA LIFE SCIENCES INVESTORS
		DATE OF NAME CHANGE:	20141015

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	H&Q LIFE SCIENCES INVESTORS
		DATE OF NAME CHANGE:	19920929
</SEC-HEADER>
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<TYPE>4
<SEQUENCE>1
<FILENAME>tm241830-2_4seq1.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
Document 1 - file: tm241830-2_4seq1.html

Document 1 - RAW XML: tm241830-2_4seq1.xml

</DOCUMENT>
</SEC-DOCUMENT>