<SEC-DOCUMENT>0001104659-25-026190.txt : 20250320
<SEC-HEADER>0001104659-25-026190.hdr.sgml : 20250320
<ACCEPTANCE-DATETIME>20250320163514
ACCESSION NUMBER:		0001104659-25-026190
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20250311
FILED AS OF DATE:		20250320
DATE AS OF CHANGE:		20250320

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Hepp Robert W.
		CENTRAL INDEX KEY:			0001908637
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-06565
		FILM NUMBER:		25756998

	MAIL ADDRESS:	
		STREET 1:		C/O ABRDN
		STREET 2:		1900 MARKET STREET, SUITE 200
		CITY:			PHILDADELPHIA
		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:			MA
		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>3
<SEQUENCE>1
<FILENAME>tm259812-21_4seq1.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
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<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2025-03-11</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000884121</issuerCik>
        <issuerName>abrdn Life Sciences Investors</issuerName>
        <issuerTradingSymbol>HQL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001908637</rptOwnerCik>
            <rptOwnerName>Hepp Robert W.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ABRDN</rptOwnerStreet1>
            <rptOwnerStreet2>1900 MARKET STREET, SUITE 200</rptOwnerStreet2>
            <rptOwnerCity>PHILADELPHIA</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>19103</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Vice President</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <remarks>Exhibit List: Exhibit 24 - Power of Attorney</remarks>

    <ownerSignature>
        <signatureName>/s/ Lucia Sitar by POA from Reporting Person</signatureName>
        <signatureDate>2025-03-20</signatureDate>
    </ownerSignature>
</ownershipDocument>
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<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>tm259812d21_ex24.htm
<DESCRIPTION>EXHIBIT 24
<TEXT>
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<TITLE></TITLE>
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<P STYLE="font-size: 10pt; margin: 0pt">&nbsp;</P>

<P STYLE="text-align: right; margin: 0pt; font-size: 10pt"><B>Exhibit 24</B></P>

<P STYLE="font-size: 10pt; margin: 0pt"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font-size: 10pt; margin: 0pt">POWER OF ATTORNEY</P>

<P STYLE="margin: 0pt; font-size: 10pt">&nbsp;</P>

<P STYLE="margin: 0pt; font-size: 10pt">Know all by these presents, that the undersigned hereby constitutes and appoints the individuals named on Schedule A
attached hereto and as may be amended from time to time, or any of them signing singly, with full power of substitution and resubstitution,
as the undersigned's true and lawful attorneys-in- fact to:</P>

<P STYLE="margin: 0pt; font-size: 10pt">&nbsp;</P>

<P STYLE="margin: 0pt; font-size: 10pt">1. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;as may be required, prepare, execute in the undersigned's name and on the
undersigned's behalf, and submit to the United States Securities and Exchange Commission (the "SEC") a Form ID, including amendments thereto,
and any other documents necessary or appropriate to obtain codes and passwords enabling the undersigned to make electronic filings with
the SEC of reports required by Section 16(a) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or any rule or regulation
of the SEC;</P>

<P STYLE="margin: 0pt; font-size: 10pt">&nbsp;</P>

<P STYLE="margin: 0pt; font-size: 10pt">2.  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;execute for and on behalf of the undersigned, in the undersigned's capacity as a reporting person pursuant to Section 16
of the Exchange Act, and the rules thereunder of the applicable registered investment companies (and any successor companies) listed on
Schedule A attached hereto, as amended from time to time, and any other registered investment company affiliated with or established by
abrdn Inc., Aberdeen Asset Managers Limited, abrdn Asia Limited or their affiliates, for which the undersigned becomes a Section 16 reporting
person (each, a "Fund"), Forms 3, 4 and 5 in accordance with Section 16(a) of the Exchange Act;</P>

<P STYLE="margin: 0pt; font-size: 10pt">&nbsp;</P>

<P STYLE="margin: 0pt; font-size: 10pt">3.  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;do and perform any and all acts for
and on behalf of the undersigned that may be necessary or desirable to complete and execute any such Form 3, 4 or 5 and timely file such
form with the SEC and any stock exchange or similar authority; and</P>

<P STYLE="margin: 0pt; font-size: 10pt">&nbsp;</P>

<P STYLE="margin: 0pt; font-size: 10pt">4.  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;take any other action of any type whatsoever in connection with the foregoing that, in
the opinion of any of such attorneys-in-fact, may be of benefit to, in the best interest of, or legally required by, the
undersigned, it being understood that the documents executed by any of such attorneys-in-fact on behalf of the undersigned pursuant
to this Power of Attorney shall be in such form and shall contain such terms and conditions as any of such attorneys-in-fact may
approve in the discretion of any of such attorneys-in-fact.</P>

<P STYLE="margin: 0pt; font-size: 10pt">&nbsp;</P>

<P STYLE="margin: 0pt; font-size: 10pt">The undersigned hereby grants to each such attorney-in-fact full power
and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of
any rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally
present, with full power of substitution or revocation, hereby ratifying and confirming all that any of such attorneys-in-fact, or
the substitute or substitutes of any of such attorneys-in-fact, shall lawfully do or cause to be done by virtue of this Power of
Attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in
such capacity at the request of<FONT STYLE="font-size: 10pt"> the undersigned, are not assuming, nor is any Fund assuming, any of the undersigned's responsibilities to comply with Section 16 of the
Exchange Act.</FONT></P>

<P STYLE="margin: 0pt; font-size: 10pt"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="margin: 0pt; font-size: 10pt">This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4 and 5 with
respect to the undersigned's holdings of and transactions in securities issued by any Fund, unless earlier revoked by the undersigned
in a signed writing delivered to the foregoing attorneys-in-fact.</P>

<P STYLE="margin: 0pt; font-size: 10pt">&nbsp;</P>

<P STYLE="margin: 0pt; font-size: 10pt"></P>

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<P STYLE="margin: 0pt; font-size: 10pt">&nbsp;</P>

<P STYLE="margin: 0pt; font-size: 10pt">IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this
27<SUP>th</SUP> day of January 2022.</P>

<P STYLE="margin: 0pt; font-size: 10pt">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" BORDER="0" STYLE="width: 100%; margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt">
<TR STYLE="vertical-align: top">
  <TD STYLE="width: 8%">Signature: </TD>
  <TD STYLE="border-bottom: Black 1pt solid; width: 42%">/s/ Robert W. Hepp</TD>
    <TD STYLE="width: 50%">&nbsp;</TD></TR>

<TR STYLE="vertical-align: top">
  <TD>Name:</TD>
  <TD>Robert W. Hepp</TD>
    <TD>&nbsp;</TD></TR>
</TABLE>


<P STYLE="margin: 0pt; font-size: 10pt">&nbsp;</P>

<P STYLE="margin: 0pt; font-size: 10pt"></P>

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<P STYLE="margin: 0pt; font-size: 10pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SCHEDULE A</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">FUND NAME AND TICKER SYMBOL</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.35in; text-align: left">1.</TD><TD STYLE="text-align: justify">ABERDEEN AUSTRALIA EQUITY FUND, INC. (IAF)</TD>
</TR>
<TR STYLE="vertical-align: top; text-align: justify">
<TD></TD><TD STYLE="text-align: left">2.</TD><TD STYLE="text-align: justify">ABERDEEN ASIA-PACIFIC INCOME FUND, INC. (FAX)</TD>
</TR>
<TR STYLE="vertical-align: top; text-align: justify">
<TD></TD><TD STYLE="text-align: left">3.</TD><TD STYLE="text-align: justify">ABERDEEN GLOBAL INCOME FUND, INC. (FCO)</TD>
</TR>
<TR STYLE="vertical-align: top; text-align: justify">
<TD></TD><TD STYLE="text-align: left">4.</TD><TD STYLE="text-align: justify">ABERDEEN EMERGING MARKETS EQUITY INCOME FUND, INC. (AEF)</TD>
</TR>
<TR STYLE="vertical-align: top; text-align: justify">
<TD></TD><TD STYLE="text-align: left">5.</TD><TD STYLE="text-align: justify">THE INDIA FUND, INC. (IFN)</TD>
</TR>
<TR STYLE="vertical-align: top; text-align: justify">
<TD></TD><TD STYLE="text-align: left">6.</TD><TD STYLE="text-align: justify">ABERDEEN JAPAN EQUITY FUND, INC. (JEQ)</TD>
</TR>
<TR STYLE="vertical-align: top; text-align: justify">
<TD></TD><TD STYLE="text-align: left">7.</TD><TD STYLE="text-align: justify">FIRST TRUST/ABERDEEN GLOBAL OPPORTUNITY INCOME FUND (FAM)</TD>
</TR>
<TR STYLE="vertical-align: top; text-align: justify">
<TD></TD><TD STYLE="text-align: left">8.</TD><TD STYLE="text-align: justify">FIRST TRUST/ABERDEEN EMERGING OPPORTUNITY FUND (FEO)</TD>
</TR>
<TR STYLE="vertical-align: top; text-align: justify">
<TD></TD><TD STYLE="text-align: left">9.</TD><TD STYLE="text-align: justify">ABERDEEN INCOME CREDIT STRATEGIES FUND (ACP)</TD>
</TR>
<TR STYLE="vertical-align: top; text-align: justify">
<TD></TD><TD STYLE="text-align: left">10.</TD><TD STYLE="text-align: justify">ABERDEEN ASIA-PACIFIC INCOME INVESTMENT COMPANY LIMITED (FAP)</TD>
</TR>
<TR STYLE="vertical-align: top; text-align: justify">
<TD></TD><TD STYLE="text-align: left">11.</TD><TD STYLE="text-align: justify">ABERDEEN GLOBAL PREMIER PROPERTIES FUND (AWP)</TD>
</TR>
<TR STYLE="vertical-align: top; text-align: justify">
<TD></TD><TD STYLE="text-align: left">12.</TD><TD STYLE="text-align: justify">ABERDEEN GLOBAL DYNAMIC DIVIDEND FUND (AGD)</TD>
</TR>
<TR STYLE="vertical-align: top; text-align: justify">
<TD></TD><TD STYLE="text-align: left">13.</TD><TD STYLE="text-align: justify">ABERDEEN TOTAL DYNAMIC DIVIDEND FUND (AOD)</TD>
</TR>
<TR STYLE="vertical-align: top; text-align: justify">
<TD></TD><TD STYLE="text-align: left">14.</TD><TD STYLE="text-align: justify">ABERDEEN STANDARD GLOBAL INFRASTRUCTURE INCOME FUND (ASGI)</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">INDIVIDUALS APPOINTED AS ATTORNEY-IN-FACT, WITH FULL POWER OF SUBSTITUTION AND RESUBSTITUTION</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.35in; text-align: left">1.</TD><TD STYLE="text-align: justify">Jennifer Nichols</TD>
</TR>
<TR STYLE="vertical-align: top; text-align: justify">
<TD></TD><TD STYLE="text-align: left">2.</TD><TD STYLE="text-align: justify">Lucia Sitar</TD>
</TR>
<TR STYLE="vertical-align: top; text-align: justify">
<TD></TD><TD STYLE="text-align: left">3.</TD><TD STYLE="text-align: justify">Megan Kennedy</TD>
</TR>
<TR STYLE="vertical-align: top; text-align: justify">
<TD></TD><TD STYLE="text-align: left">4.</TD><TD STYLE="text-align: justify">Alan Goodson</TD>
</TR>
<TR STYLE="vertical-align: top; text-align: justify">
<TD></TD><TD STYLE="text-align: left">5.</TD><TD STYLE="text-align: justify">Katherine Corey</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="margin: 0pt; font-size: 10pt"></P>

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<P STYLE="margin: 0pt; font-size: 10pt">&nbsp;</P>

<P STYLE="margin: 0pt; font-size: 10pt"></P>

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