<SEC-DOCUMENT>0001104659-23-114656.txt : 20231106
<SEC-HEADER>0001104659-23-114656.hdr.sgml : 20231106
<ACCEPTANCE-DATETIME>20231106151616
ACCESSION NUMBER:		0001104659-23-114656
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20231027
FILED AS OF DATE:		20231106
DATE AS OF CHANGE:		20231106

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			abrdn Inc.
		CENTRAL INDEX KEY:			0001309613
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-04889
		FILM NUMBER:		231379622

	BUSINESS ADDRESS:	
		STREET 1:		1900 MARKET ST., 2ND FLOOR
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19103
		BUSINESS PHONE:		215-405-5700

	MAIL ADDRESS:	
		STREET 1:		1900 MARKET ST., 2ND FLOOR
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19103

	FORMER NAME:	
		FORMER CONFORMED NAME:	Aberdeen Standard Investments Inc.
		DATE OF NAME CHANGE:	20190107

	FORMER NAME:	
		FORMER CONFORMED NAME:	Aberdeen Asset Management Inc.
		DATE OF NAME CHANGE:	20041123

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			abrdn Healthcare Investors
		CENTRAL INDEX KEY:			0000805267
		STANDARD INDUSTRIAL CLASSIFICATION:	UNKNOWN SIC - 0000 [0000]
		IRS NUMBER:				046564285
		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 HEALTHCARE INVESTORS
		DATE OF NAME CHANGE:	20141015

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	H&Q HEALTHCARE INVESTORS
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>tm2329670-1_3seq1.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2023-10-27</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000805267</issuerCik>
        <issuerName>abrdn Healthcare Investors</issuerName>
        <issuerTradingSymbol>HQH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001309613</rptOwnerCik>
            <rptOwnerName>abrdn Inc.</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>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <officerTitle></officerTitle>
            <otherText>Adviser</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <ownerSignature>
        <signatureName>/s/ Lucia Sitar (authorized signer) on behalf of abrdn Inc.</signatureName>
        <signatureDate>2023-11-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
